Analysis

  • max time kernel
    120s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 15:52

General

  • Target

    30% Down Payment Slip.pdf_______________________________________________________.exe

  • Size

    672KB

  • MD5

    b61f68ef968ddae3a9743437fdd26f88

  • SHA1

    3af6f1f6047cbe9319239875f7cc601185d32c94

  • SHA256

    7d7df676602a9235025bdcc7f5e550d532f294d6e4bd2195e12390e342bccd32

  • SHA512

    1d86da57cfaf9697cda684c294da9cc71525e4cc51d9eb8c73eff182ddac5644c2a28887328d408c0e3d12583eba57ce525d08069a28da438475cb9817b33778

  • SSDEEP

    12288:JzDi8LkpEaNB+shFpO31Yw3v2KL9sfHdYrtnoWTKx7FO/fv0Qsb/LkR:JzmjEcB+sbpoSw3JCdY19mQ/fv0QW/O

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 2 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\30% Down Payment Slip.pdf_______________________________________________________.exe
    "C:\Users\Admin\AppData\Local\Temp\30% Down Payment Slip.pdf_______________________________________________________.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2904
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\30% Down Payment Slip.pdf_______________________________________________________.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2608
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Jdysdl.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2516
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\Jdysdl" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCF02.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2372
    • 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
      PID:2420

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpCF02.tmp
    Filesize

    1KB

    MD5

    25b388408418d7eb2d7d64357ec7bb08

    SHA1

    85e2aa428f0678940d6e331d689caa0e870513aa

    SHA256

    c9974454f52648353c87c63da58ee586ee606832c8d9437702494f19ca632f68

    SHA512

    49243ea998a77d7b104425676916ee958c86f220ee1de154010782d90b02db8f68b77efd889dead82cb14d051a92404fcc6efd029366a4b56b240548b35a6678

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\HFFW136QPFFDCYHXPQYZ.temp
    Filesize

    7KB

    MD5

    62d5a484e07ac71f39d0ac1baa47ffa0

    SHA1

    fe72caa12225ee9788bb46c0103d023785ce501e

    SHA256

    a35c4db9051308c31a2c0e87a0ff7cc00b785edad670575c1463780cf1a369cd

    SHA512

    fe602065ac2310cda9308d2372e31f47fb6acb3d51c555a10c6308d2ccd9131280c8a5db9e644f394ae8c896b2ea4341137c244c416ac912171529ee8b165721

  • memory/2420-27-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2420-18-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2420-20-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2420-22-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2420-24-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2420-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2420-28-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2420-30-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2904-4-0x00000000003B0000-0x00000000003C0000-memory.dmp
    Filesize

    64KB

  • memory/2904-5-0x0000000005170000-0x00000000051F2000-memory.dmp
    Filesize

    520KB

  • memory/2904-31-0x0000000074340000-0x0000000074A2E000-memory.dmp
    Filesize

    6.9MB

  • memory/2904-0-0x000000007434E000-0x000000007434F000-memory.dmp
    Filesize

    4KB

  • memory/2904-3-0x0000000000480000-0x000000000049A000-memory.dmp
    Filesize

    104KB

  • memory/2904-2-0x0000000074340000-0x0000000074A2E000-memory.dmp
    Filesize

    6.9MB

  • memory/2904-1-0x00000000010B0000-0x000000000115A000-memory.dmp
    Filesize

    680KB