Analysis

  • max time kernel
    88s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 22:16

General

  • Target

    CATALOGUE-240820..exe

  • Size

    742KB

  • MD5

    5d892bab56f877e400465574c7700304

  • SHA1

    84b6f30f4afe22845c0e16604725917b01b02058

  • SHA256

    b91f48efe2aec048218936491da956e9b3407edcdb0b12694ca546f48b5f4a1a

  • SHA512

    ed7947ec63df789e64326356a6f8daf5d452ef611130c60bf028d538c5e60c91d311efd4062e55185bda9c15d962fa0b95373834b7a5b3a0a33448a30921b17f

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    confidentfoundation.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Skillz1212@@

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 IoCs
  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CATALOGUE-240820..exe
    "C:\Users\Admin\AppData\Local\Temp\CATALOGUE-240820..exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1556
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gDywvTAVeI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA584.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2032
    • C:\Users\Admin\AppData\Local\Temp\CATALOGUE-240820..exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1960

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpA584.tmp

    Filesize

    1KB

    MD5

    ca98e775b56177637804d4fabfc37a99

    SHA1

    1766526cfa3243b8bbef3bfecf3820dd9ac15fe2

    SHA256

    bdccfba6c131739a63108ea1fa35041f6bf3ebbac2264b01fa42f8eeb4f7f518

    SHA512

    dc8fbb33898714f9ed3438dd54adabd4569472725ae206c0db04d81d1fb706b7b90e5a4a4c9aa0fdd90744b1f7bb7d96f1147612590e80b9e1de89c288a67bca

  • memory/1556-57-0x0000000005100000-0x00000000051A2000-memory.dmp

    Filesize

    648KB

  • memory/1556-55-0x00000000761F1000-0x00000000761F3000-memory.dmp

    Filesize

    8KB

  • memory/1556-54-0x00000000009E0000-0x0000000000AA0000-memory.dmp

    Filesize

    768KB

  • memory/1556-58-0x00000000008F0000-0x000000000098E000-memory.dmp

    Filesize

    632KB

  • memory/1556-56-0x0000000000300000-0x000000000030C000-memory.dmp

    Filesize

    48KB

  • memory/1960-66-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/1960-61-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/1960-62-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/1960-64-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/1960-65-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/1960-67-0x000000000046167E-mapping.dmp

  • memory/1960-69-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/1960-71-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/2032-59-0x0000000000000000-mapping.dmp