Analysis

  • max time kernel
    186s
  • max time network
    207s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 00:35

General

  • Target

    Universal290720.exe

  • Size

    600KB

  • MD5

    00f60a589041dafd4151990ae2370d1b

  • SHA1

    8a5b12491fbab28caa2d19b2b9652c2cc2acab6c

  • SHA256

    55c46eca6b7b3d44afd9f09eab01429f08447da65ac74995dbc0a15793824614

  • SHA512

    85bc62a41904ac3a3e6336da563c35e1565d0dad4707ffa24cdc32ac77c33f134a5504b96e41587f7c5b6414fe9d67cba36b76e577539db1364718a6fc5940f3

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.transfastc.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Godalone147

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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: RenamesItself 1 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\Universal290720.exe
    "C:\Users\Admin\AppData\Local\Temp\Universal290720.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2036
    • C:\Users\Admin\AppData\Local\Temp\Universal290720.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:5116

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

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\Universal290720.exe.log
    Filesize

    611B

    MD5

    e09032fb626c6c1d10e2ab27b0278463

    SHA1

    a26ea328ef81ab53a9883f7b9c7d3998883eaf47

    SHA256

    1b834fc0faded24ae9665629c739742a2614784d62f96f9f982a6c678e916147

    SHA512

    2c341b371103d67fb0bd1e49a4a07b3037e3a304b914446c103de43f87370d584e666f0b93e2c28c776188e975cd95855bb3a1bc4ddbcac89acd62ec46cb5e35

  • memory/2036-130-0x0000000000EB0000-0x0000000000F4C000-memory.dmp
    Filesize

    624KB

  • memory/2036-131-0x00000000058A0000-0x000000000593C000-memory.dmp
    Filesize

    624KB

  • memory/2036-132-0x0000000005A90000-0x0000000005B22000-memory.dmp
    Filesize

    584KB

  • memory/5116-133-0x0000000000000000-mapping.dmp
  • memory/5116-134-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/5116-136-0x00000000053B0000-0x0000000005954000-memory.dmp
    Filesize

    5.6MB

  • memory/5116-137-0x0000000005CA0000-0x0000000005D06000-memory.dmp
    Filesize

    408KB

  • memory/5116-138-0x0000000006280000-0x00000000062D0000-memory.dmp
    Filesize

    320KB