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Analysis

  • max time kernel
    46s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    28/03/2023, 01:06

General

  • Target

    95abf03a0df4af716ca9e0cb1154e3e10753d2be8d299a0ad3e44fb87077ee93.exe

  • Size

    792KB

  • MD5

    096547f66d02f43f7382c81bed7a24f3

  • SHA1

    bd2e0d6a3c5fdcdbbea2b66ea3fdc4a783ea784d

  • SHA256

    95abf03a0df4af716ca9e0cb1154e3e10753d2be8d299a0ad3e44fb87077ee93

  • SHA512

    ba8e1ab9e6d6971c11a21d464226837edb23415a06f290efac9c49d014336811323951562858e3735d1fbebe80632976692a24e4dcd907b623182f4d39b2d98b

  • SSDEEP

    12288:1dcv5cifSJjDGamUkr8ulM7UA54BUVFyYQBJhEd6pgh:NJ/GovulMVOQQBJ2d6pg

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5800132992:AAEiAnLbVaQFAl51tOorObI_ia8oF7x04sI/

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.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\95abf03a0df4af716ca9e0cb1154e3e10753d2be8d299a0ad3e44fb87077ee93.exe
    "C:\Users\Admin\AppData\Local\Temp\95abf03a0df4af716ca9e0cb1154e3e10753d2be8d299a0ad3e44fb87077ee93.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:324
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:608

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/324-54-0x0000000000C40000-0x0000000000D0C000-memory.dmp

    Filesize

    816KB

  • memory/324-55-0x0000000004F80000-0x0000000004FC0000-memory.dmp

    Filesize

    256KB

  • memory/324-56-0x00000000083F0000-0x000000000852C000-memory.dmp

    Filesize

    1.2MB

  • memory/324-57-0x0000000005CB0000-0x0000000005D42000-memory.dmp

    Filesize

    584KB

  • memory/324-63-0x0000000004F80000-0x0000000004FC0000-memory.dmp

    Filesize

    256KB

  • memory/324-67-0x00000000022C0000-0x00000000022F2000-memory.dmp

    Filesize

    200KB

  • memory/608-60-0x00000000024E0000-0x0000000002520000-memory.dmp

    Filesize

    256KB

  • memory/608-61-0x00000000024E0000-0x0000000002520000-memory.dmp

    Filesize

    256KB

  • memory/608-62-0x00000000024E0000-0x0000000002520000-memory.dmp

    Filesize

    256KB

  • memory/608-65-0x00000000024E0000-0x0000000002520000-memory.dmp

    Filesize

    256KB

  • memory/608-64-0x00000000024E0000-0x0000000002520000-memory.dmp

    Filesize

    256KB

  • memory/608-66-0x00000000024E0000-0x0000000002520000-memory.dmp

    Filesize

    256KB