Overview

overview

10

Static

static

PURCHASE O...DF.exe

windows7_x64

10

PURCHASE O...DF.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    158s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 11:57

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General

  • Target

    PURCHASE ORDER _5644658.PDF.exe

  • Size

    424KB

  • MD5

    f0b3e2a7cef0d4e0c6e094676550221a

  • SHA1

    fc8cddcf6526cd3ee94141b6299c7069ad1b19b0

  • SHA256

    6ae9b8c271b5110c7cceb8b7d39522dd8d444dddcfa3691726ff3580562a73b7

  • SHA512

    3a0f6d6e979871ecdf4cce66e63674ecd32568f0d45f91448b0bb986fccbbf3173734f992d6c0add58c5437fd048e36c4b00bd8efcbcf5c161b35b8c7e26178a

Score
10/10
agentteslaevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    mail.microtechlab.in
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    pune@123

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 1 IoCs
  • Disables Task Manager via registry modification
    evasion
  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

    persistence
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER _5644658.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER _5644658.PDF.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2336
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eigBEJpNrvdNDs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp55A2.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:5000
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
      • Drops file in Drivers directory
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4860
      • C:\Windows\SysWOW64\REG.exe
        REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
        3⤵
        • Modifies registry key
        PID:1972
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:4508
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4860 -s 1584
          3⤵
          • Program crash
          PID:824
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4860 -ip 4860
      1⤵
        PID:4236

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmp55A2.tmp
        Filesize

        1KB

        MD5

        ed373df6fe2e879f3897d43e47199027

        SHA1

        ebc99dfe126e290d07c8316c2a6dd7727cf2470b

        SHA256

        c941757b2c9e6f1053cb410cf725e2e26139fdcb43ba93014005b4dd91232f68

        SHA512

        260b309a8be1fc11387c418e02b70dceba2e099aea52ed66b495271786944cec436a82f9e853b4797f5a56893fcde858e4d4d8c214c1513e4e3794e66c443515

        Download Submit

      • memory/1972-139-0x0000000000000000-mapping.dmp

        Download

      • memory/2336-130-0x0000000000A30000-0x0000000000AA0000-memory.dmp

        Filesize

        448KB

        Download

      • memory/2336-131-0x00000000052F0000-0x000000000538C000-memory.dmp

        Filesize

        624KB

        Download

      • memory/2336-132-0x00000000054C0000-0x0000000005552000-memory.dmp

        Filesize

        584KB

        Download

      • memory/2336-133-0x0000000006130000-0x00000000066D4000-memory.dmp

        Filesize

        5.6MB

        Download

      • memory/4508-141-0x0000000000000000-mapping.dmp

        Download

      • memory/4860-136-0x0000000000000000-mapping.dmp

        Download

      • memory/4860-137-0x0000000000400000-0x0000000000452000-memory.dmp

        Filesize

        328KB

        Download

      • memory/4860-138-0x0000000005100000-0x0000000005166000-memory.dmp

        Filesize

        408KB

        Download

      • memory/4860-140-0x0000000005BE0000-0x0000000005C30000-memory.dmp

        Filesize

        320KB

        Download

      • memory/5000-134-0x0000000000000000-mapping.dmp

        Download