Httpsifangdscom Repack < CONFIRMED • 2025 >

| Aspect | Details | |--------|---------| | Actor attribution | No definitive attribution, but code‑reuse and infrastructure overlap with known APT‑like groups operating in the APAC region (e.g., APT‑33, APT‑40). The use of “Fang” in the naming convention matches previous campaigns that leveraged pirated‑software distribution for initial infection. | | Motivation | Financial gain (stealing credentials, ransomware) and espionage‑type data collection (browser cookies, system information). | | Related families | Emotet (downloader stage), TrickBot (credential stealer), BazarLoader (dropping technique), Ransomware‑as‑a‑Service loaders (e.g., LockBit, Hive). | | Distribution ecosystem | • Pirated‑software forums, torrent sites, and “crack” blogs.
• Spam e‑mail with malicious attachments that point to the same domain.
• Malvertising on compromised legitimate sites (drive‑by). |

| Control | Details | |---------|---------| | DNS sinkholing | Redirect *.ifangds.com to an internal sinkhole; log the attempted lookups. | | TLS inspection | Decrypt outbound TLS (where policy permits) to detect the malicious GET/POST pattern. | | Outbound firewall | Block traffic to the identified fast‑flux IP ranges unless explicitly whitelisted. | | Proxy filtering | Use URL‑category filters to block “Illicit Software” and “Malware” categories, which commonly include the domain. |

Verdict: Not Recommended / High Risk

If you have encountered a "repack" linked through ifangds.com, it is highly likely not an original release from a trusted repacker. Below is a breakdown of why this site is generally avoided by the gaming community.

| Stage | Behaviour | Artifacts | |-------|-----------|-----------| | 1. Execution | - Drops a copy of itself to %TEMP%\GUID.exe and launches it with a hidden window.
- Performs process hollowing: creates a suspended svchost.exe, injects the unpacked payload, then resumes. | File: C:\Windows\Temp\6A7B9C.exe | | 2. Network | - Resolves ifangds.com → obtains a list of download URLs (JSON).
- Retrieves a second-stage payload (payload.bin) via HTTPS (TLS 1.2). | URL: https://a1b2c3.ifangds.com/9f8e7d6c.exe | | 3. Persistence | - Writes a registry run key: HKCU\Software\Microsoft\Windows\CurrentVersion\Run\AdobeUpdate -> "%TEMP%\GUID.exe".
- Creates a scheduled task “Adobe Update” that runs at logon. | Registry: HKCU\Software\Microsoft\Windows\CurrentVersion\Run\AdobeUpdate | | 4. Privilege Escalation | - Attempts DLL side‑loading by placing a malicious mshtml.dll in the same folder as the dropped svchost.exe.
- If the victim has admin rights, the DLL is loaded by a trusted Windows binary, resulting in SYSTEM privileges. | | 5. Payload Execution | The second‑stage payload varies by campaign:
• Credential stealer (captures Chrome/Firefox passwords via DPAPI).
• Ransomware (encrypts user files, drops a ransom note README_DECRYPT.txt). | | 6. Cleanup | - Deletes the original download (ifangds.com stub) after execution.
- Attempts to hide the scheduled task by setting the “RunLevel” to “Limited”. | httpsifangdscom repack

Key observation: The repack uses multiple layers of evasion (packing → process hollowing → DLL side‑loading) that make behavioural detection more effective than static signatures alone.

| Attribute | Value / Observation | |-----------|----------------------| | File name (as seen by victim) | photoshop_2023_crack.exe | | File size | 1.4 MB (packed) | | PE characteristics | - 64‑bit PE (PE32+)
- Entry point at 0x140001000 (packed stub)
- Imports: kernel32.dll, urlmon.dll, wininet.dll, ws2_32.dll. | | Packers / obfuscation | • Custom UPX‑derived packer (entropy ≈ 7.9).
• Anti‑debug tricks: IsDebuggerPresent, CheckRemoteDebuggerPresent, NtQueryInformationProcess. | | Embedded resources | • Encrypted configuration blob (AES‑256, key derived from a static XOR of the PE header).
• Icons and version info mimic the legitimate software (e.g., Photoshop version “23.2”). | | Strings (decoded) | - "https://%s.ifangds.com/%s" (C2 template).
- "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) Chrome/115.0"
- "payload.exe" (temp filename). | | Digital signature | None (unsigned). | | Aspect | Details | |--------|---------| | Actor

Takeaway: The repack is deliberately crafted to look legitimate, using a custom packer to hinder static detection. The presence of a hard‑coded C2 template is a reliable IoC for YARA/Suricata signatures.

| Phase | Action | |-------|--------| | 1. Identification | - Detect the dropper via the YARA rule or EDR behavioural alerts.
- Capture the process tree and associated network connections. | | 2. Containment | - Isolate the endpoint (network quarantine).
- Stop the malicious scheduled task and delete the registry run key.
- Kill the malicious process and any child processes. | | 3. Eradication | - Run a full antivirus/antimalware scan after removal of the dropper.
- Delete all files matching the %TEMP%\GUID.exe pattern.
- Remove any secondary payloads found in %AppData%, %ProgramData%, or hidden directories. | | 4. Recovery | - Re‑image the host if a persistent RAT is suspected.
- Reset local passwords and force a credential change for domain accounts used on the host. | | 5. Lessons Learned | - Update detection signatures (YARA, IDS/IPS) with new hashes/URLs.
- Review download policies for pirated‑software sites.
- Conduct a user‑awareness refresher on the dangers of cracked software. | | Control | Details | |---------|---------| | DNS