Analysis

  • max time kernel
    118s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    12/10/2023, 00:49

General

  • Target
    SPYGAME.exe
  • Size 274KB
  • Sample231012-a6tc2aeb8x
  • SHA256 c2ade6498bf4fe3991c76104a2d5a8ad880ab4baaf0756f707eb3b22d9734a8f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • 44caliber

C2
  • https://discord.com/api/webhooks/1101119692103491584/GTMNvMSwfNfgMdtSqTcvjCvj1QDXJYPNxW9vEtgHszOELGeSAQDBrIp9Qf7oWif26BJd

Signatures

  • 44Caliber

    An open source infostealer written in C#.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SPYGAME.exe
    "C:\Users\Admin\AppData\Local\Temp\SPYGAME.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2244

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        Process.txt

        • Path C:\ProgramData\44\Process.txt
        • Size 372B
        • SHA256 5b3e534e1ec82c25eef37ffe0406a7a46f6688b35beb5841e05b5cbb2cc10fa9
        • MD5 SHA1 SHA512

        memory/2244-0-0x00000000008A0000-0x00000000008EA000-memory.dmp

        memory/2244-1-0x000007FEF6060000-0x000007FEF6A4C000-memory.dmp

        memory/2244-2-0x000000001B160000-0x000000001B1E0000-memory.dmp

        memory/2244-49-0x000007FEF6060000-0x000007FEF6A4C000-memory.dmp