Analysis

  • max time kernel
    142s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 22:57

General

  • Target

    AWB#5305323204643,pdf.iso.exe

  • Size

    450KB

  • MD5

    e78990ab515ff33eb54dca91716e8743

  • SHA1

    bc5880de78651a50896d0d4f5d2508bc180bf73d

  • SHA256

    05d2a876ff034215c958e49dcfb4b7230c869bf646e7a72efe26b35bd0ab6ce3

  • SHA512

    4b0828024af99e1e92028af68da933a97b9e2d1c0d2a0b6897534628f0a3a1c5e4e558846d3aaa947cc283dab681b23a65d1d3671d27c1fd9f2dadb1e413d53e

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.vivaldi.net
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Johnpaulifeanyi

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 3 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\AWB#5305323204643,pdf.iso.exe
    "C:\Users\Admin\AppData\Local\Temp\AWB#5305323204643,pdf.iso.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2144
    • C:\Users\Admin\AppData\Local\Temp\AWB#5305323204643,pdf.iso.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:4172

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\AWB#5305323204643,pdf.iso.exe.log

    Filesize

    408B

    MD5

    8adbb2cb7759fdcbc51cfbf0bfd7c867

    SHA1

    f7549e6ea430e7d64b3afb3fc27c77ed5122f85b

    SHA256

    c67092561e4b1472672374c3439004e2bc0191d9a901cde2b8b69a2d34dc6297

    SHA512

    f465311e884dd82e3152959b6a59ac8d6be0a056a1cfddabbcc6714079a2269cd5c09b2b8fbc87a9ec3323c531383526ae19ef24fed100dec80730fae0d79991

  • memory/2144-130-0x0000000075300000-0x00000000758B1000-memory.dmp

    Filesize

    5.7MB

  • memory/4172-131-0x0000000000000000-mapping.dmp

  • memory/4172-132-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/4172-134-0x0000000075300000-0x00000000758B1000-memory.dmp

    Filesize

    5.7MB