Analysis

  • max time kernel
    141s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-12-2023 13:28

General

  • Target

    iHZsM0uymI3Vg6u.exe

  • Size

    733KB

  • MD5

    3c0248f8ec601644dcc315613c8687d2

  • SHA1

    7074e7794171f6273d26b889e958ca9904d90388

  • SHA256

    7e843c9470e591d69b382463986e433872664cb0f39bc232af8a157a6d75594c

  • SHA512

    75c73a851db5da0a9e9fcc340444302518f0a6043a0450c73170abff83db7fff45895e91f5fd24f6b50d21eaeea44570a68f61d252a6c935ee63e95a3aa7f1de

  • SSDEEP

    12288:SF5nF8ME6jD/mRRPuAeuBMH4koN3l0X9bKAcHgovMtQBHaVzXi5iK:SFPtD/mRRPuAeuWYkO3l0X9KAno0uHaU

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5612303943:AAFKYGy6vbiiDfKGcrus6Bdd9XppRu5OBPQ/

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.

  • Adds Run key to start application 2 TTPs 1 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\iHZsM0uymI3Vg6u.exe
    "C:\Users\Admin\AppData\Local\Temp\iHZsM0uymI3Vg6u.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4984
    • C:\Users\Admin\AppData\Local\Temp\iHZsM0uymI3Vg6u.exe
      "C:\Users\Admin\AppData\Local\Temp\iHZsM0uymI3Vg6u.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3412
  • C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
    1⤵
      PID:1236
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k UnistackSvcGroup
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4876

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\iHZsM0uymI3Vg6u.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/3412-20-0x0000000075150000-0x0000000075900000-memory.dmp

      Filesize

      7.7MB

    • memory/3412-16-0x00000000055A0000-0x00000000055B0000-memory.dmp

      Filesize

      64KB

    • memory/3412-14-0x0000000075150000-0x0000000075900000-memory.dmp

      Filesize

      7.7MB

    • memory/3412-21-0x00000000055A0000-0x00000000055B0000-memory.dmp

      Filesize

      64KB

    • memory/3412-19-0x0000000006CA0000-0x0000000006CF0000-memory.dmp

      Filesize

      320KB

    • memory/3412-11-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/3412-17-0x0000000005860000-0x00000000058C6000-memory.dmp

      Filesize

      408KB

    • memory/4876-56-0x00000258C09E0000-0x00000258C09E1000-memory.dmp

      Filesize

      4KB

    • memory/4876-38-0x00000258B8640000-0x00000258B8650000-memory.dmp

      Filesize

      64KB

    • memory/4876-57-0x00000258C09E0000-0x00000258C09E1000-memory.dmp

      Filesize

      4KB

    • memory/4876-58-0x00000258C0AF0000-0x00000258C0AF1000-memory.dmp

      Filesize

      4KB

    • memory/4876-54-0x00000258C09B0000-0x00000258C09B1000-memory.dmp

      Filesize

      4KB

    • memory/4984-15-0x0000000075150000-0x0000000075900000-memory.dmp

      Filesize

      7.7MB

    • memory/4984-8-0x00000000063F0000-0x00000000063FA000-memory.dmp

      Filesize

      40KB

    • memory/4984-7-0x0000000005830000-0x0000000005838000-memory.dmp

      Filesize

      32KB

    • memory/4984-6-0x0000000005800000-0x0000000005818000-memory.dmp

      Filesize

      96KB

    • memory/4984-5-0x00000000053B0000-0x00000000053BA000-memory.dmp

      Filesize

      40KB

    • memory/4984-1-0x0000000075150000-0x0000000075900000-memory.dmp

      Filesize

      7.7MB

    • memory/4984-4-0x0000000005390000-0x00000000053A0000-memory.dmp

      Filesize

      64KB

    • memory/4984-9-0x0000000007AC0000-0x0000000007B3E000-memory.dmp

      Filesize

      504KB

    • memory/4984-3-0x00000000051E0000-0x0000000005272000-memory.dmp

      Filesize

      584KB

    • memory/4984-2-0x0000000005840000-0x0000000005DE4000-memory.dmp

      Filesize

      5.6MB

    • memory/4984-10-0x0000000006550000-0x00000000065EC000-memory.dmp

      Filesize

      624KB

    • memory/4984-0-0x0000000000750000-0x000000000080E000-memory.dmp

      Filesize

      760KB