Analysis

  • max time kernel
    145s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/10/2023, 12:34

General

  • Target
    GqIwdAmZpguIocU.exe
  • Size 776KB
  • Sample231012-prrm8aac3x
  • SHA256 fe465130b6af14e63941b2f3651918699e38533bd14b6c319a550d671358b253
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\GqIwdAmZpguIocU.exe
    "C:\Users\Admin\AppData\Local\Temp\GqIwdAmZpguIocU.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4100
    • C:\Users\Admin\AppData\Local\Temp\GqIwdAmZpguIocU.exe
      "C:\Users\Admin\AppData\Local\Temp\GqIwdAmZpguIocU.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:3372

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        GqIwdAmZpguIocU.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\GqIwdAmZpguIocU.exe.log
        • Size 1KB
        • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
        • MD5 SHA1 SHA512

        memory/3372-12-0x0000000000400000-0x0000000000442000-memory.dmp

        memory/3372-21-0x0000000005220000-0x0000000005230000-memory.dmp

        memory/3372-20-0x0000000074EB0000-0x0000000075660000-memory.dmp

        memory/3372-19-0x0000000006870000-0x00000000068C0000-memory.dmp

        memory/3372-18-0x0000000005230000-0x0000000005296000-memory.dmp

        memory/3372-17-0x0000000005220000-0x0000000005230000-memory.dmp

        memory/3372-16-0x0000000074EB0000-0x0000000075660000-memory.dmp

        memory/4100-5-0x0000000007200000-0x000000000720A000-memory.dmp

        memory/4100-9-0x0000000008440000-0x0000000008450000-memory.dmp

        memory/4100-10-0x0000000009C10000-0x0000000009C8C000-memory.dmp

        memory/4100-11-0x0000000005D10000-0x0000000005DAC000-memory.dmp

        memory/4100-8-0x0000000007000000-0x0000000007010000-memory.dmp

        memory/4100-7-0x0000000074EB0000-0x0000000075660000-memory.dmp

        memory/4100-15-0x0000000074EB0000-0x0000000075660000-memory.dmp

        memory/4100-6-0x0000000007500000-0x0000000007516000-memory.dmp

        memory/4100-0-0x00000000000C0000-0x0000000000188000-memory.dmp

        memory/4100-4-0x0000000007000000-0x0000000007010000-memory.dmp

        memory/4100-3-0x0000000007040000-0x00000000070D2000-memory.dmp

        memory/4100-2-0x0000000007510000-0x0000000007AB4000-memory.dmp

        memory/4100-1-0x0000000074EB0000-0x0000000075660000-memory.dmp