Analysis

  • max time kernel
    141s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/12/2023, 20:35

General

  • Target

    034b8ed08edfa130c4753550d7aea9bd.exe

  • Size

    796KB

  • MD5

    034b8ed08edfa130c4753550d7aea9bd

  • SHA1

    7efd865efe47e8f2665cf5bdc4556be769ea998f

  • SHA256

    da2583a529827b15b05b18370fe5f8bab878fdd0c78e4fde91e2e5c5b476930f

  • SHA512

    52aa0c025d57399f0024d792918da946b87371b62519e1ef0e7098cc68fddb27bb6c312eccccf246fe2079584b61b2bec7d3ef6f4ce021a4042db9e7485b1368

  • SSDEEP

    24576:CvrroA8+PzWh7/wAUEcgGtOz23v9MNjd:wr4+qh//4Oz2/Kh

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.spamora.net
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Emotion22

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\034b8ed08edfa130c4753550d7aea9bd.exe
    "C:\Users\Admin\AppData\Local\Temp\034b8ed08edfa130c4753550d7aea9bd.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:208
    • C:\Users\Admin\AppData\Local\Temp\034b8ed08edfa130c4753550d7aea9bd.exe
      "C:\Users\Admin\AppData\Local\Temp\034b8ed08edfa130c4753550d7aea9bd.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4516
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mdwSETuWz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF656.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2416

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\MLdAu\MLdAu.exe

    Filesize

    384KB

    MD5

    f6590a14cc4d2ca5d9019511772efc4e

    SHA1

    b061b9894ea9e40b2a2f5aa8998c18409d0d3ddf

    SHA256

    5f1859441c822b008f7f5e1c84417a6b81544cb62c2686f17d64f85b6e759616

    SHA512

    14eb170789c2478a900481636e8bcb5d5b81c8f7f77ecf8f8f69a14a35978c30dfa4f88cf33a38e281c5195e5302ebe2e17e395c36e379a169fb03ed831badf2

  • memory/208-10-0x0000000006FE0000-0x0000000007078000-memory.dmp

    Filesize

    608KB

  • memory/208-21-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/208-3-0x00000000057B0000-0x0000000005842000-memory.dmp

    Filesize

    584KB

  • memory/208-4-0x0000000005900000-0x0000000005910000-memory.dmp

    Filesize

    64KB

  • memory/208-5-0x0000000005750000-0x000000000575A000-memory.dmp

    Filesize

    40KB

  • memory/208-6-0x0000000007080000-0x000000000711C000-memory.dmp

    Filesize

    624KB

  • memory/208-7-0x0000000005C90000-0x0000000005CAA000-memory.dmp

    Filesize

    104KB

  • memory/208-8-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/208-9-0x0000000005900000-0x0000000005910000-memory.dmp

    Filesize

    64KB

  • memory/208-0-0x0000000000C70000-0x0000000000D3E000-memory.dmp

    Filesize

    824KB

  • memory/208-2-0x0000000005CC0000-0x0000000006264000-memory.dmp

    Filesize

    5.6MB

  • memory/208-11-0x00000000097E0000-0x000000000981E000-memory.dmp

    Filesize

    248KB

  • memory/208-1-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/4516-20-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/4516-17-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/4516-24-0x00000000064C0000-0x0000000006526000-memory.dmp

    Filesize

    408KB

  • memory/4516-23-0x0000000005820000-0x0000000005838000-memory.dmp

    Filesize

    96KB

  • memory/4516-22-0x0000000005850000-0x0000000005860000-memory.dmp

    Filesize

    64KB

  • memory/4516-27-0x0000000074D30000-0x00000000754E0000-memory.dmp

    Filesize

    7.7MB

  • memory/4516-28-0x0000000005850000-0x0000000005860000-memory.dmp

    Filesize

    64KB

  • memory/4516-29-0x00000000066B0000-0x0000000006700000-memory.dmp

    Filesize

    320KB

  • memory/4516-30-0x0000000005850000-0x0000000005860000-memory.dmp

    Filesize

    64KB