Analysis

  • max time kernel
    142s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/01/2024, 18:26

General

  • Target
    Samples 1/3c5720111b5562bdbcef0ac01a7d4fcf47ad75af43f84220129c0a1abb5e65f4.exe
  • Size 742KB
  • Sample240107-w3ew5aceh9
  • SHA256 3c5720111b5562bdbcef0ac01a7d4fcf47ad75af43f84220129c0a1abb5e65f4
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://discord.com/api/webhooks/1169917901906653224/YjkyFWX_CawSIPQ02zeV3XExHGtDteoh-fLuvdqIFqL772Pb__cJUtnVv4DqDRhm0ks1

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.

  • Legitimate hosting services abused for malware hosting/C2 1 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Samples 1\3c5720111b5562bdbcef0ac01a7d4fcf47ad75af43f84220129c0a1abb5e65f4.exe
    "C:\Users\Admin\AppData\Local\Temp\Samples 1\3c5720111b5562bdbcef0ac01a7d4fcf47ad75af43f84220129c0a1abb5e65f4.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3484
    • C:\Users\Admin\AppData\Local\Temp\Samples 1\3c5720111b5562bdbcef0ac01a7d4fcf47ad75af43f84220129c0a1abb5e65f4.exe
      "C:\Users\Admin\AppData\Local\Temp\Samples 1\3c5720111b5562bdbcef0ac01a7d4fcf47ad75af43f84220129c0a1abb5e65f4.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1824
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1824 -s 2092
        3⤵
        • Program crash
        PID:2604
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1824 -ip 1824
    1⤵
      PID:2636

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1824-16-0x0000000074650000-0x0000000074E00000-memory.dmp

          memory/1824-21-0x0000000074650000-0x0000000074E00000-memory.dmp

          memory/1824-20-0x0000000007130000-0x0000000007180000-memory.dmp

          memory/1824-13-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/1824-18-0x00000000017C0000-0x00000000017D0000-memory.dmp

          memory/1824-17-0x0000000005C00000-0x0000000005C66000-memory.dmp

          memory/3484-5-0x0000000005CB0000-0x0000000005CC0000-memory.dmp

          memory/3484-6-0x0000000005CE0000-0x0000000005CEA000-memory.dmp

          memory/3484-8-0x00000000070B0000-0x00000000070BA000-memory.dmp

          memory/3484-9-0x0000000007730000-0x00000000077C2000-memory.dmp

          memory/3484-10-0x0000000009DE0000-0x0000000009E7C000-memory.dmp

          memory/3484-11-0x0000000074650000-0x0000000074E00000-memory.dmp

          memory/3484-12-0x0000000005CB0000-0x0000000005CC0000-memory.dmp

          memory/3484-7-0x0000000007690000-0x000000000769E000-memory.dmp

          memory/3484-19-0x0000000074650000-0x0000000074E00000-memory.dmp

          memory/3484-0-0x0000000074650000-0x0000000074E00000-memory.dmp

          memory/3484-4-0x0000000006550000-0x00000000068A4000-memory.dmp

          memory/3484-3-0x0000000005A90000-0x0000000005B22000-memory.dmp

          memory/3484-2-0x0000000005FA0000-0x0000000006544000-memory.dmp

          memory/3484-1-0x0000000000F70000-0x0000000001030000-memory.dmp