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Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23/05/2024, 13:48

General

  • Target

    DHL Delivery Invoice AWB#7490327845.exe

  • Size

    818KB

  • MD5

    03706e52938770bd5497faddc41ae671

  • SHA1

    75d77e86a0c5eb7745d0efe60c90175deea29fea

  • SHA256

    ae424f87ddc0913714a888f32a9412df939107b863c28e407513cf1b55db07f2

  • SHA512

    00fe3572a8cb40ec347c9ce563ecc4e78bc0cd93f7c987f1cc3cd9f2de1b93fa33bc7c3e017c84897c494a905895c987de71459151f5fb03f3c458bf15918a56

  • SSDEEP

    12288:zzWWET/mr9K0A/B5bKmy+VDmVx5R380an/soBWKNmRobGGKraPHOLcIjqlEWDvo+:zzWWtDQKd+lFbNkALWfsE+

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

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

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

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL Delivery Invoice AWB#7490327845.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL Delivery Invoice AWB#7490327845.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2992
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ChxJRlBJ.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2592
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ChxJRlBJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5023.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2532
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2568

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp5023.tmp

    Filesize

    1KB

    MD5

    d21bb9032c0599e36e39aa0b2ed30d8c

    SHA1

    b202e355dfd31a266f317811187ba020b179c3c5

    SHA256

    b468cebbdc9b6da6c61851d870d73c5fbf6030a157022a209e654647479279f7

    SHA512

    1927b61662d759d4fd78d3151118b290d2c84dd019ae7665009df29972995181c7daae7ef67ae59142aed314079a97b3934f3bce690e92d593c4c12c76a86bf1

  • memory/2568-26-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2568-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2568-16-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2568-24-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2568-20-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2568-14-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2568-23-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2568-18-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2992-2-0x0000000074520000-0x0000000074C0E000-memory.dmp

    Filesize

    6.9MB

  • memory/2992-6-0x0000000004B10000-0x0000000004B92000-memory.dmp

    Filesize

    520KB

  • memory/2992-1-0x0000000000C60000-0x0000000000D32000-memory.dmp

    Filesize

    840KB

  • memory/2992-0-0x000000007452E000-0x000000007452F000-memory.dmp

    Filesize

    4KB

  • memory/2992-27-0x0000000074520000-0x0000000074C0E000-memory.dmp

    Filesize

    6.9MB

  • memory/2992-5-0x0000000000610000-0x0000000000620000-memory.dmp

    Filesize

    64KB

  • memory/2992-4-0x0000000000510000-0x000000000051C000-memory.dmp

    Filesize

    48KB

  • memory/2992-3-0x00000000005F0000-0x0000000000612000-memory.dmp

    Filesize

    136KB