Analysis

  • max time kernel
    117s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 02:05

General

  • Target

    URGENT ORDER.exe

  • Size

    479KB

  • MD5

    f8fa97018ec384c1aece80202867d9d8

  • SHA1

    262cb1ff3f11e72965c222a10ca508daa6b7ef0d

  • SHA256

    658f85d49b2550e1540494f9503b9bffa0154af96f605d88ca37f0aa7de73741

  • SHA512

    ed98694a8ac47dc5a557c26ceb45cd596690abebdb943a8d0957ea474f84eb610e7a285ce7e937b540bb656bb8c911a83589695b82de703ffb0c2223060f243f

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.motivarteperu.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ugB,+mpj}Qg#

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • 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.

  • 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
  • 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\URGENT ORDER.exe
    "C:\Users\Admin\AppData\Local\Temp\URGENT ORDER.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2348
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YcYmeJbuRXhza" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6DF1.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:528
    • C:\Users\Admin\AppData\Local\Temp\URGENT ORDER.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:376
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:4328

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp6DF1.tmp
      Filesize

      1KB

      MD5

      61a87a42cdb0d118b645cb1db9012ccb

      SHA1

      66c77f9450c0624363057ebc1ce6c640f5b3cb9b

      SHA256

      a364e706629d7edf8f6f8c6763aa2a4f2184380f158fe03da3232a3718a0a6ed

      SHA512

      8aad05def11064593fd7b31f2d06f3ed8ab6aacab2650fa8f00993dffbe651771ee6c7cfba24dc34949b560876009c71567a1a303928ea066944dfcc490928ed

    • memory/376-137-0x0000000000000000-mapping.dmp
    • memory/376-138-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

    • memory/376-139-0x0000000005520000-0x0000000005586000-memory.dmp
      Filesize

      408KB

    • memory/376-140-0x0000000006420000-0x0000000006470000-memory.dmp
      Filesize

      320KB

    • memory/528-135-0x0000000000000000-mapping.dmp
    • memory/2348-130-0x0000000000810000-0x000000000088E000-memory.dmp
      Filesize

      504KB

    • memory/2348-131-0x0000000007D70000-0x0000000008314000-memory.dmp
      Filesize

      5.6MB

    • memory/2348-132-0x00000000077C0000-0x0000000007852000-memory.dmp
      Filesize

      584KB

    • memory/2348-133-0x00000000052F0000-0x00000000052FA000-memory.dmp
      Filesize

      40KB

    • memory/2348-134-0x0000000009ED0000-0x0000000009F6C000-memory.dmp
      Filesize

      624KB

    • memory/4328-141-0x0000000000000000-mapping.dmp