Overview

overview

10

Static

static

Doc Remit.exe

windows7_x64

10

Doc Remit.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    106s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 11:39

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General

  • Target

    Doc Remit.exe

  • Size

    494KB

  • MD5

    312a5ef698dcbf3bdaa1fd1b7dceb890

  • SHA1

    8bd85170dd1c57747f9635b23a79d389574fc7d9

  • SHA256

    a7f10ee02c982acfcb3baf5970fe366d6583dfb0c8c27b20cdf00a2a7d103bc3

  • SHA512

    c52a31a924501ba1541649e69c4bfbf30762239c953c41ffd54b44a0a33775f4bf6f04e79d51df8200545034094550a6ea46e5e4511421a513bbd412b1a3430e

Score
10/10
agentteslacollectionevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    mail.starmakertravel.com
  • Port:
    587
  • Username:
    smt@starmakertravel.com
  • Password:
    admin2000

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    mail.starmakertravel.com
  • Port:
    587
  • Username:
    smt@starmakertravel.com
  • Password:
    admin2000

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
    evasion
  • Looks for VMWare Tools registry key 2 TTPs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spywarestealer
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spywarestealer
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Doc Remit.exe
    "C:\Users\Admin\AppData\Local\Temp\Doc Remit.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1336
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mNqORvGmYWf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6B6C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1236
    • C:\Users\Admin\AppData\Local\Temp\Doc Remit.exe
      "{path}"
      2⤵
        PID:612
      • C:\Users\Admin\AppData\Local\Temp\Doc Remit.exe
        "{path}"
        2⤵
          PID:1216
        • C:\Users\Admin\AppData\Local\Temp\Doc Remit.exe
          "{path}"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          • outlook_office_path
          • outlook_win_path
          PID:2340
          • C:\Windows\SysWOW64\netsh.exe
            "netsh" wlan show profile
            3⤵
              PID:3828

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Initial Access

        Execution

        Scheduled Task

        1
        T1053

        Persistence

        Scheduled Task

        1
        T1053

        Privilege Escalation

        Scheduled Task

        1
        T1053

        Defense Evasion

        Virtualization/Sandbox Evasion

        2
        T1497

        Credential Access

        Credentials in Files

        3
        T1081

        Discovery

        Query Registry

        5
        T1012

        Virtualization/Sandbox Evasion

        2
        T1497

        System Information Discovery

        4
        T1082

        Peripheral Device Discovery

        1
        T1120

        Lateral Movement

        Collection

        Data from Local System

        3
        T1005

        Email Collection

        1
        T1114

        Exfiltration

        Command and Control

        Impact

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmp6B6C.tmp
          Filesize

          1KB

          MD5

          fc53739688fd96b26e14b83c3eb4b193

          SHA1

          d63f2704805c56b78f923715aab70dd92b8c6a8b

          SHA256

          a4543698682d0266a684ab6cdeb4193f5433dac954f63d5ed64c500c17544f36

          SHA512

          cdeb098e802629fecff1ef9838eff1a74a4d4e9e486a73534b219629c7d60cf85dde6623743b1c7711624dfe1aaf7a04e4e214e099f7ae75b51b8bdc4d9554a3

          Download Submit
        • memory/612-140-0x0000000000000000-mapping.dmp
          Download
        • memory/1216-141-0x0000000000000000-mapping.dmp
          Download
        • memory/1236-138-0x0000000000000000-mapping.dmp
          Download
        • memory/1336-134-0x0000000004C70000-0x0000000004C82000-memory.dmp
          Filesize

          72KB

          Download
        • memory/1336-135-0x0000000004CC0000-0x0000000004CE2000-memory.dmp
          Filesize

          136KB

          Download
        • memory/1336-136-0x0000000008810000-0x00000000088AC000-memory.dmp
          Filesize

          624KB

          Download
        • memory/1336-137-0x0000000008EC0000-0x0000000008F26000-memory.dmp
          Filesize

          408KB

          Download
        • memory/1336-130-0x0000000000250000-0x00000000002D2000-memory.dmp
          Filesize

          520KB

          Download
        • memory/1336-133-0x0000000004BE0000-0x0000000004BEA000-memory.dmp
          Filesize

          40KB

          Download
        • memory/1336-132-0x0000000004B40000-0x0000000004BD2000-memory.dmp
          Filesize

          584KB

          Download
        • memory/1336-131-0x0000000005220000-0x00000000057C4000-memory.dmp
          Filesize

          5.6MB

          Download
        • memory/2340-142-0x0000000000000000-mapping.dmp
          Download
        • memory/2340-143-0x0000000000400000-0x0000000000450000-memory.dmp
          Filesize

          320KB

          Download
        • memory/2340-144-0x00000000064B0000-0x0000000006500000-memory.dmp
          Filesize

          320KB

          Download
        • memory/3828-145-0x0000000000000000-mapping.dmp
          Download