Analysis

  • max time kernel
    80s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2022 16:31

General

  • Target

    SOA.exe

  • Size

    823KB

  • MD5

    f640aac019a1e4d4c2087787a183ce9e

  • SHA1

    61e6ffda193221c646528fe23b6934b35967755f

  • SHA256

    b83277e8c7164257c1077c18eb894209d211d79b0032ad50230553c5b7a1e411

  • SHA512

    062a338acff66bd608c0e274baa6c697d48bda9b0e13c1e0bbcd47a3c56cda14ab5cd10d540003b350c0cc5a8b5469402ed061e4061a8ae2f8ffaa048ee225f8

  • SSDEEP

    24576:SzW8WrwhcvcfdY4disSYnRsquUoWPfr6ZcT:jx4disSARPGWPfrJ

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.karthikagro.in
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Yenks@0910

Signatures

  • AgentTesla

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

  • 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
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 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\SOA.exe
    "C:\Users\Admin\AppData\Local\Temp\SOA.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2440
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OPTvPkKUuRKql" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCB10.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4372
    • C:\Users\Admin\AppData\Local\Temp\SOA.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:4600

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpCB10.tmp

    Filesize

    1KB

    MD5

    6a0acf01327f443288423986773b01ce

    SHA1

    86d4b1519d3b0d5909878661382c44a6518c4fc4

    SHA256

    d89e6981b800f17fd86171d24c212dba2fd34a6aa69c245afc2d0bbb5a0cba19

    SHA512

    e3af4c1609a5160a4329b962b034c6b2ca5b602d6d73c2d0a62d880821c46a0815c9eec14783dada0a642a81f3d82fd1888bd9993f6f70d7e065ca89cc3a7a26

  • memory/2440-132-0x0000000000AB0000-0x0000000000B84000-memory.dmp

    Filesize

    848KB

  • memory/2440-133-0x0000000005C40000-0x00000000061E4000-memory.dmp

    Filesize

    5.6MB

  • memory/2440-134-0x0000000005570000-0x0000000005602000-memory.dmp

    Filesize

    584KB

  • memory/2440-135-0x0000000005730000-0x00000000057CC000-memory.dmp

    Filesize

    624KB

  • memory/2440-136-0x0000000005550000-0x000000000555A000-memory.dmp

    Filesize

    40KB

  • memory/4372-137-0x0000000000000000-mapping.dmp

  • memory/4600-139-0x0000000000000000-mapping.dmp

  • memory/4600-140-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/4600-141-0x0000000005B80000-0x0000000005BE6000-memory.dmp

    Filesize

    408KB

  • memory/4600-142-0x0000000006EC0000-0x0000000006F10000-memory.dmp

    Filesize

    320KB