Analysis

  • max time kernel
    145s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 00:19

General

  • Target

    169287394-75414-SANWVDDNETP0034-3.pdf.exe

  • Size

    568KB

  • MD5

    5d434473eb24eb71a2a6e94c4e6e3c6b

  • SHA1

    64b7fe575fcd9c9a77e42e30cce2e205b2100313

  • SHA256

    3b86298f7b9280b5cb9332c52a36c02386cea08e7b3cef8565bd06cbb08f44cb

  • SHA512

    a9508c35aed0dd637d94c7dfd1373eb59856ce894f1388f438b94a06304c674aeb50db5613c157a62135541e5f1c41e440fffb5bf6107e86666d0c7364d9f057

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Good1234@@@

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Good1234@@@

Signatures

  • AgentTesla

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

  • AgentTesla Payload 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 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\169287394-75414-SANWVDDNETP0034-3.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\169287394-75414-SANWVDDNETP0034-3.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3336
    • C:\Users\Admin\AppData\Local\Temp\169287394-75414-SANWVDDNETP0034-3.pdf.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:404

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\169287394-75414-SANWVDDNETP0034-3.pdf.exe.log
    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/404-135-0x0000000000000000-mapping.dmp
  • memory/404-136-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/404-138-0x0000000006290000-0x00000000062F6000-memory.dmp
    Filesize

    408KB

  • memory/404-139-0x0000000006940000-0x0000000006990000-memory.dmp
    Filesize

    320KB

  • memory/3336-130-0x0000000000280000-0x0000000000314000-memory.dmp
    Filesize

    592KB

  • memory/3336-131-0x0000000005360000-0x0000000005904000-memory.dmp
    Filesize

    5.6MB

  • memory/3336-132-0x0000000004CC0000-0x0000000004D52000-memory.dmp
    Filesize

    584KB

  • memory/3336-133-0x0000000004D60000-0x0000000004D6A000-memory.dmp
    Filesize

    40KB

  • memory/3336-134-0x0000000008740000-0x00000000087DC000-memory.dmp
    Filesize

    624KB