Analysis

  • max time kernel
    108s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 11:38

General

  • Target

    Products description.exe

  • Size

    598KB

  • MD5

    62df3974ab561482298cfa714ea69814

  • SHA1

    4b860c8f44c042b186696f90d16d13c18b1ada82

  • SHA256

    44ce0aee858d173dd0575154562f83765798c772f2d22781a107713619d77da5

  • SHA512

    97d9e0f077acca676c72d685ec1618ffce675a6719b1942052b1e7e9363940626ade72fbea990c4d5fb5ae94d46a6ef1f80e064072e6bbc9fcc2167cce62fd2f

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    alibaba123

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    alibaba123

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 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\Products description.exe
    "C:\Users\Admin\AppData\Local\Temp\Products description.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1472
    • C:\Users\Admin\AppData\Local\Temp\Products description.exe
      "C:\Users\Admin\AppData\Local\Temp\Products description.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1112

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\Products description.exe.log
    Filesize

    1KB

    MD5

    fc13935f3038bdde6cb484249fbff668

    SHA1

    a4c32013e6d59bf1eb1a5119456965de191e62b8

    SHA256

    de064c569a5f4edaf2da91d7bcb82bab06a35190b699cede1da0aa616a23d676

    SHA512

    5817275af0f8a48eb1e008d39f62fb3582db9a2d21a806e9f9ee36fbfd799fb17e91f0e3686f4b236724fe78f14ae7f40cd3755f0ec0fb6734ce42f996b798f7

  • memory/1112-133-0x0000000000000000-mapping.dmp
  • memory/1112-136-0x0000000000600000-0x000000000064C000-memory.dmp
    Filesize

    304KB

  • memory/1112-137-0x0000000004D20000-0x0000000004DBC000-memory.dmp
    Filesize

    624KB

  • memory/1112-138-0x0000000005990000-0x00000000059F6000-memory.dmp
    Filesize

    408KB

  • memory/1112-139-0x00000000060F0000-0x0000000006140000-memory.dmp
    Filesize

    320KB

  • memory/1112-140-0x00000000064B0000-0x00000000064BA000-memory.dmp
    Filesize

    40KB

  • memory/1472-130-0x0000000000790000-0x000000000082A000-memory.dmp
    Filesize

    616KB

  • memory/1472-131-0x0000000005FB0000-0x0000000006554000-memory.dmp
    Filesize

    5.6MB

  • memory/1472-132-0x0000000005AF0000-0x0000000005B82000-memory.dmp
    Filesize

    584KB