Analysis

  • max time kernel
    145s
  • max time network
    201s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    16-03-2022 11:30

General

  • Target

    Shipment Docs.exe

  • Size

    513KB

  • MD5

    73e5451011ebf24c6ff6b945adf6f443

  • SHA1

    33cd90107c301a1dc51b13142160dda8dc525483

  • SHA256

    5057d8b5104c79609ea7234da4d51f6883622ee5e3e1b660489d247b920f6d90

  • SHA512

    d7d405511c78565ff71887a93d5f7da6df4b3314249b2f5457678c28f1d5748558eca57d5ee1daaee45f49a9aab6506150781a5304ac5abffd679ed2bc70d463

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.indiacarpet.in
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    india@12345

Signatures

  • suricata: ET MALWARE AgentTesla Exfil Via SMTP

    suricata: ET MALWARE AgentTesla Exfil Via SMTP

  • Drops file in Drivers directory 1 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies data under HKEY_USERS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Shipment Docs.exe
    "C:\Users\Admin\AppData\Local\Temp\Shipment Docs.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1176
    • C:\Users\Admin\AppData\Local\Temp\Shipment Docs.exe
      "{path}"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4856
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
    1⤵
    • Modifies data under HKEY_USERS
    PID:4736

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1176-130-0x0000000000180000-0x0000000000206000-memory.dmp

    Filesize

    536KB

  • memory/1176-131-0x00000000050D0000-0x0000000005674000-memory.dmp

    Filesize

    5.6MB

  • memory/1176-132-0x0000000004BC0000-0x0000000004C52000-memory.dmp

    Filesize

    584KB

  • memory/1176-133-0x0000000004C60000-0x0000000004CFC000-memory.dmp

    Filesize

    624KB

  • memory/1176-134-0x0000000074DF0000-0x00000000755A0000-memory.dmp

    Filesize

    7.7MB

  • memory/1176-135-0x0000000004B20000-0x00000000050C4000-memory.dmp

    Filesize

    5.6MB

  • memory/1176-136-0x0000000004BA0000-0x0000000004BAA000-memory.dmp

    Filesize

    40KB

  • memory/4736-138-0x0000024EB13C0000-0x0000024EB13D0000-memory.dmp

    Filesize

    64KB

  • memory/4736-139-0x0000024EB3940000-0x0000024EB3944000-memory.dmp

    Filesize

    16KB

  • memory/4736-137-0x0000024EB1360000-0x0000024EB1370000-memory.dmp

    Filesize

    64KB

  • memory/4856-140-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/4856-142-0x0000000074DF0000-0x00000000755A0000-memory.dmp

    Filesize

    7.7MB

  • memory/4856-143-0x00000000057B0000-0x0000000005D54000-memory.dmp

    Filesize

    5.6MB

  • memory/4856-144-0x0000000006550000-0x00000000065B6000-memory.dmp

    Filesize

    408KB

  • memory/4856-145-0x0000000006BF0000-0x0000000006C40000-memory.dmp

    Filesize

    320KB