Analysis

  • max time kernel
    94s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 18:56

General

  • Target

    ARG 101.56-0.06 gauge.exe

  • Size

    825KB

  • MD5

    30545d17881d0c3067ebc371dffa0730

  • SHA1

    d9a148bf49b3cef4c5c5ee583b4973036c86c27e

  • SHA256

    777e4e952b36fb4fc429e8338b14e09de7c0e076ab7aebe944e212c8087cfe39

  • SHA512

    69fefe7cdee34cc54d81e9b7214c6027666889130226388e4a9de8ac88f192f86a6e92e4eb401b25c5d001cd6625f2aa194bae92dd4a2d884c0a4332671d2833

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    chuk5anderson@yandex.ru
  • Password:
    chukwudi123

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    chuk5anderson@yandex.ru
  • Password:
    chukwudi123

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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ARG 101.56-0.06 gauge.exe
    "C:\Users\Admin\AppData\Local\Temp\ARG 101.56-0.06 gauge.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4116
    • C:\Users\Admin\AppData\Local\Temp\ARG 101.56-0.06 gauge.exe
      "{path}"
      2⤵
        PID:4464
      • C:\Users\Admin\AppData\Local\Temp\ARG 101.56-0.06 gauge.exe
        "{path}"
        2⤵
          PID:4932
        • C:\Users\Admin\AppData\Local\Temp\ARG 101.56-0.06 gauge.exe
          "{path}"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:204

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      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_v2.0_32\UsageLogs\ARG 101.56-0.06 gauge.exe.log
        Filesize

        762B

        MD5

        9009926d69007188988b6d59df9c943d

        SHA1

        0789ca51cb30941e11915ca63a80649761392451

        SHA256

        6019af20aa3b3b85388b233dd6c5e005ecc38b52bc88981a4df013eeafab5881

        SHA512

        01c1a31d8be18dd9e906b85678a2e87c8084eea8d74a3ee8ed80300be6d7da3053fd60d5f47535790ce6e65c8a4a42e62fa9c2bdcaad7742f530545131087175

      • memory/204-133-0x0000000000000000-mapping.dmp
      • memory/204-134-0x0000000000400000-0x000000000044E000-memory.dmp
        Filesize

        312KB

      • memory/204-136-0x00000000750A0000-0x0000000075651000-memory.dmp
        Filesize

        5MB

      • memory/4116-130-0x00000000750A0000-0x0000000075651000-memory.dmp
        Filesize

        5MB

      • memory/4464-131-0x0000000000000000-mapping.dmp
      • memory/4932-132-0x0000000000000000-mapping.dmp