Analysis

  • max time kernel
    95s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 00:28

General

  • Target

    PO copy.pdf.exe

  • Size

    600KB

  • MD5

    3fe5438b138021910261a11d1ade22f2

  • SHA1

    d24100a23ab25530b24196718eccb0b17b80cc0a

  • SHA256

    86eb9ef9abcbd21df6bed4743efd0c879ba62127b73a0dc5194e0ee758038628

  • SHA512

    d31311738b33b6197795c889cc07793f02f0b501ec622c4948b7c9432fc14c41ff712bd7d81942ceca3f153e1184314cc3f8490eb9e37552af33781a522a9ff1

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    chibuikelightwork1

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    chibuikelightwork1

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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO copy.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\PO copy.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4108
    • C:\Users\Admin\AppData\Local\Temp\PO copy.pdf.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:4136

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO copy.pdf.exe.log

    Filesize

    611B

    MD5

    e09032fb626c6c1d10e2ab27b0278463

    SHA1

    a26ea328ef81ab53a9883f7b9c7d3998883eaf47

    SHA256

    1b834fc0faded24ae9665629c739742a2614784d62f96f9f982a6c678e916147

    SHA512

    2c341b371103d67fb0bd1e49a4a07b3037e3a304b914446c103de43f87370d584e666f0b93e2c28c776188e975cd95855bb3a1bc4ddbcac89acd62ec46cb5e35

  • memory/4108-130-0x00000000007A0000-0x000000000083C000-memory.dmp

    Filesize

    624KB

  • memory/4108-131-0x00000000051C0000-0x000000000525C000-memory.dmp

    Filesize

    624KB

  • memory/4108-132-0x0000000005300000-0x0000000005392000-memory.dmp

    Filesize

    584KB

  • memory/4136-133-0x0000000000000000-mapping.dmp

  • memory/4136-134-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/4136-136-0x0000000005540000-0x0000000005AE4000-memory.dmp

    Filesize

    5.6MB

  • memory/4136-137-0x0000000005E30000-0x0000000005E96000-memory.dmp

    Filesize

    408KB

  • memory/4136-138-0x0000000006590000-0x00000000065E0000-memory.dmp

    Filesize

    320KB

  • memory/4136-139-0x0000000006940000-0x000000000694A000-memory.dmp

    Filesize

    40KB