Analysis

  • max time kernel
    125s
  • max time network
    127s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09-11-2020 20:23

General

  • Target

    iHUVFOQGB2PVfdq.exe

  • Size

    573KB

  • MD5

    4d8d7d2ab774df479f925333f8a4ae92

  • SHA1

    c981adf81fe5609ff238511a70999236458dc54a

  • SHA256

    c6ac9cfcd382c5db7107667e3d9c9f2c2271833c159dd474d29222fa0f0fa73f

  • SHA512

    bace05eb0d1a042c432496de0319a4a22a3793b927a550570eb9d7e67d0fae37c51a88bc02b743b637e7ba28ea12b0a1d030dc731fe82835eab018fbc065a226

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.motobombasish.com
  • Port:
    587
  • Username:
    test@motobombasish.com
  • Password:
    123456789

Signatures

  • AgentTesla

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

  • CoreEntity .NET Packer 1 IoCs

    A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

  • AgentTesla Payload 2 IoCs
  • rezer0 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\iHUVFOQGB2PVfdq.exe
    "C:\Users\Admin\AppData\Local\Temp\iHUVFOQGB2PVfdq.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:984
    • C:\Users\Admin\AppData\Local\Temp\iHUVFOQGB2PVfdq.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3772

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\iHUVFOQGB2PVfdq.exe.log
    MD5

    df5e4d5b51d7f383ba5952118373f00d

    SHA1

    4f66b6a5a5d79226c327833570315c1c299f9783

    SHA256

    8309f1008720221269d7e532141f0df688df00959fae7d5ab46dd9ebef0fd1c7

    SHA512

    cdbbcd33408126a2a4408cd8ae3113d930af993ac0f45f545101a2018aa2015b44b4559c6f742fa8b3b38366274fbb966346b0e11bc6cfa95861408e438069b3

  • memory/984-9-0x0000000005B40000-0x0000000005B42000-memory.dmp
    Filesize

    8KB

  • memory/984-11-0x0000000005FF0000-0x0000000005FF1000-memory.dmp
    Filesize

    4KB

  • memory/984-4-0x00000000059E0000-0x00000000059E1000-memory.dmp
    Filesize

    4KB

  • memory/984-7-0x000000000A350000-0x000000000A351000-memory.dmp
    Filesize

    4KB

  • memory/984-8-0x0000000005A90000-0x0000000005A91000-memory.dmp
    Filesize

    4KB

  • memory/984-0-0x0000000073310000-0x00000000739FE000-memory.dmp
    Filesize

    6.9MB

  • memory/984-10-0x0000000005F00000-0x0000000005F4E000-memory.dmp
    Filesize

    312KB

  • memory/984-3-0x0000000003330000-0x0000000003389000-memory.dmp
    Filesize

    356KB

  • memory/984-1-0x0000000000F50000-0x0000000000F51000-memory.dmp
    Filesize

    4KB

  • memory/3772-13-0x0000000000447DDE-mapping.dmp
  • memory/3772-12-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/3772-15-0x0000000073310000-0x00000000739FE000-memory.dmp
    Filesize

    6.9MB

  • memory/3772-20-0x0000000005630000-0x0000000005631000-memory.dmp
    Filesize

    4KB

  • memory/3772-21-0x0000000006250000-0x0000000006251000-memory.dmp
    Filesize

    4KB