Analysis

  • max time kernel
    81s
  • max time network
    83s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    28-03-2023 02:26

General

  • Target

    454c784e20e24793d9ed6ea55e6c8b308ced6dbdaf8a3d2de5dd7b1817ed231d.exe

  • Size

    851KB

  • MD5

    d444fe22ed3dcbdded0a9a84628a731c

  • SHA1

    7cc58f8e8f3b979330896ee889865aab75faad4c

  • SHA256

    454c784e20e24793d9ed6ea55e6c8b308ced6dbdaf8a3d2de5dd7b1817ed231d

  • SHA512

    6329353f9b49ae697f90e1a0ea87b79091e9cdd20bff44ab16778cba4b5c5ede1f03fdf7b6cb4c93b7566c18b7768cd1ef7c5a5a9cda0bad95dff7ba0967a5a4

  • SSDEEP

    12288:KUJB0OwKGww6dHoMw1WMU8yHyMqMUh1w4Olapol/c3yb3WLA7JhZ:T7Bzpw1jUpHylMUYrl/yVkD

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.leonardfood.com
  • Port:
    587
  • Username:
    karimi@leonardfood.com
  • Password:
    K@rimi95

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.leonardfood.com
  • Port:
    587
  • Username:
    karimi@leonardfood.com
  • Password:
    K@rimi95
  • Email To:
    golasch18@web.de

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
  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\454c784e20e24793d9ed6ea55e6c8b308ced6dbdaf8a3d2de5dd7b1817ed231d.exe
    "C:\Users\Admin\AppData\Local\Temp\454c784e20e24793d9ed6ea55e6c8b308ced6dbdaf8a3d2de5dd7b1817ed231d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1596
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wGUEmasRpiJ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:596
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wGUEmasRpiJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpADBE.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1484
    • C:\Users\Admin\AppData\Local\Temp\454c784e20e24793d9ed6ea55e6c8b308ced6dbdaf8a3d2de5dd7b1817ed231d.exe
      "C:\Users\Admin\AppData\Local\Temp\454c784e20e24793d9ed6ea55e6c8b308ced6dbdaf8a3d2de5dd7b1817ed231d.exe"
      2⤵
        PID:1888
      • C:\Users\Admin\AppData\Local\Temp\454c784e20e24793d9ed6ea55e6c8b308ced6dbdaf8a3d2de5dd7b1817ed231d.exe
        "C:\Users\Admin\AppData\Local\Temp\454c784e20e24793d9ed6ea55e6c8b308ced6dbdaf8a3d2de5dd7b1817ed231d.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:1780

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpADBE.tmp
      Filesize

      1KB

      MD5

      16e5763a24cf8733eecbc99b410c5069

      SHA1

      fc5bf060cfb5958102b0b1a7095c9441ebe7565c

      SHA256

      9a130db15d1d22b2a9d3d3654589cbe61c09a0d6c3692108360136b09f50d337

      SHA512

      04639e9cb76361334a4d8c6cf66e2889d71daedf3ce4a3d100b3bb178ee4fc486ac50cb407e452996aa7107d24e78202b0969c48a491ffa4cc2ecb8ff13c0d62

    • memory/596-80-0x0000000002630000-0x0000000002670000-memory.dmp
      Filesize

      256KB

    • memory/596-79-0x0000000002630000-0x0000000002670000-memory.dmp
      Filesize

      256KB

    • memory/1596-54-0x0000000000140000-0x000000000021C000-memory.dmp
      Filesize

      880KB

    • memory/1596-55-0x0000000004D20000-0x0000000004D60000-memory.dmp
      Filesize

      256KB

    • memory/1596-56-0x00000000004B0000-0x00000000004D0000-memory.dmp
      Filesize

      128KB

    • memory/1596-57-0x0000000004D20000-0x0000000004D60000-memory.dmp
      Filesize

      256KB

    • memory/1596-58-0x0000000000510000-0x000000000051C000-memory.dmp
      Filesize

      48KB

    • memory/1596-59-0x0000000007E00000-0x0000000007EB6000-memory.dmp
      Filesize

      728KB

    • memory/1596-65-0x0000000004FE0000-0x000000000501E000-memory.dmp
      Filesize

      248KB

    • memory/1780-71-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/1780-70-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/1780-69-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/1780-68-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/1780-73-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/1780-75-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/1780-78-0x0000000004E10000-0x0000000004E50000-memory.dmp
      Filesize

      256KB

    • memory/1780-67-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/1780-66-0x0000000000400000-0x000000000043A000-memory.dmp
      Filesize

      232KB

    • memory/1780-81-0x0000000004E10000-0x0000000004E50000-memory.dmp
      Filesize

      256KB

    • memory/1780-82-0x0000000004E10000-0x0000000004E50000-memory.dmp
      Filesize

      256KB