Analysis

  • max time kernel
    189s
  • max time network
    245s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2022 18:31

General

  • Target

    SecuriteInfo.com.Win32.PWSX-gen.16422.654.exe

  • Size

    835KB

  • MD5

    eca94049fb52ae5b3c06a42e5c57e7ba

  • SHA1

    9c886e9c7e829d2aa2581f12322a62edfb68b513

  • SHA256

    4dd83a9f2b7002a9e6e98ce6035a077e3f379722429211c87c2ced4e708c2473

  • SHA512

    faea351122767b05f462ed45bc3091fa2fea5937e3b2f95bfa9a4823f0837c3de1a1af20a0f5946032cac6a7a691f43ba60bd097cfa1432f2761c3be3ea22db4

  • SSDEEP

    12288:53+sVxv8DshqGPtdUAOYFUzghI1+5NGeKHJQLvtiAdj6pg4DUfGDNDAQNk:p8DsPl9LUzgH3GKLvIyj4vAfCqQN

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.cnseguros.hn
  • Port:
    587
  • Username:
    llozano@cnseguros.hn
  • Password:
    Rebecca2007

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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 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\SecuriteInfo.com.Win32.PWSX-gen.16422.654.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.16422.654.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1388
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.16422.654.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.16422.654.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:760

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\SecuriteInfo.com.Win32.PWSX-gen.16422.654.exe.log
    Filesize

    1KB

    MD5

    600c4b38f50a9723b170b505df20f9f5

    SHA1

    a4eb2df0495b3a212a9b76224f85afd3fe83796d

    SHA256

    39b03df9248b411b517d0dda03fb721bf5b545eb8763699ec5396f7be645d555

    SHA512

    2772bf21a8bff264332a3d585f3d19bd6e49ec1c41c72f68025f12068c74c48140c27b9410d5552311a21b7a80daff73553b69f569e46fb9e70b0e0875579380

  • memory/760-139-0x0000000000000000-mapping.dmp
  • memory/760-140-0x0000000000400000-0x000000000042E000-memory.dmp
    Filesize

    184KB

  • memory/760-142-0x00000000063D0000-0x0000000006436000-memory.dmp
    Filesize

    408KB

  • memory/760-143-0x0000000006F80000-0x0000000006FD0000-memory.dmp
    Filesize

    320KB

  • memory/1388-133-0x0000000000A70000-0x0000000000B48000-memory.dmp
    Filesize

    864KB

  • memory/1388-134-0x00000000059F0000-0x0000000005F94000-memory.dmp
    Filesize

    5.6MB

  • memory/1388-135-0x0000000005520000-0x00000000055B2000-memory.dmp
    Filesize

    584KB

  • memory/1388-136-0x0000000005670000-0x000000000571A000-memory.dmp
    Filesize

    680KB

  • memory/1388-137-0x0000000005720000-0x000000000572A000-memory.dmp
    Filesize

    40KB

  • memory/1388-138-0x0000000006A50000-0x0000000006AEC000-memory.dmp
    Filesize

    624KB