Analysis

  • max time kernel
    116s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 23:02

General

  • Target

    datasheet.exe

  • Size

    1.7MB

  • MD5

    648d11208985f3b9139fbbb9fa780222

  • SHA1

    643756d113aee3eb277f41b2c8d8990b16e726e6

  • SHA256

    a596fdfb8997f081dd7674b248d02518f1052fe4b1c384a050f6a82b65816311

  • SHA512

    f17d1b14545b99981ad1639d3f30d22b589902533d811a283a32a6deb6f6371114137d2a2e52c5aec325f23f1acd6990e3e6c67413b2a319d5d2bb3f6fe09211

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @damienzy.xyz2240

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • Executes dropped EXE 1 IoCs
  • 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 5 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\datasheet.exe
    "C:\Users\Admin\AppData\Local\Temp\datasheet.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3540
    • C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
      "C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
      2⤵
      • Executes dropped EXE
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4776

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\RegAsm.exe

    Filesize

    63KB

    MD5

    0d5df43af2916f47d00c1573797c1a13

    SHA1

    230ab5559e806574d26b4c20847c368ed55483b0

    SHA256

    c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc

    SHA512

    f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2

  • C:\Users\Admin\AppData\Local\Temp\RegAsm.exe

    Filesize

    63KB

    MD5

    0d5df43af2916f47d00c1573797c1a13

    SHA1

    230ab5559e806574d26b4c20847c368ed55483b0

    SHA256

    c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc

    SHA512

    f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2

  • memory/3540-130-0x00000000007B0000-0x0000000000968000-memory.dmp

    Filesize

    1.7MB

  • memory/3540-131-0x00000000060F0000-0x0000000006694000-memory.dmp

    Filesize

    5.6MB

  • memory/3540-132-0x0000000005C40000-0x0000000005CD2000-memory.dmp

    Filesize

    584KB

  • memory/4776-133-0x0000000000000000-mapping.dmp

  • memory/4776-134-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/4776-137-0x0000000004DE0000-0x0000000004E7C000-memory.dmp

    Filesize

    624KB

  • memory/4776-138-0x0000000005D20000-0x0000000005D86000-memory.dmp

    Filesize

    408KB

  • memory/4776-139-0x0000000006410000-0x0000000006460000-memory.dmp

    Filesize

    320KB

  • memory/4776-140-0x00000000060D0000-0x00000000060DA000-memory.dmp

    Filesize

    40KB