Analysis

  • max time kernel
    121s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    27-03-2024 23:49

General

  • Target

    bf97d8ee1b61a6699e0a1ff3cda31252cfbd154804673d83dd68b1fee155f953.exe

  • Size

    714KB

  • MD5

    d57f61c8ca3a73cad73f5cb160d2e1a8

  • SHA1

    62a5c18d4194f1f4bef658fd24cb68a3067537a3

  • SHA256

    bf97d8ee1b61a6699e0a1ff3cda31252cfbd154804673d83dd68b1fee155f953

  • SHA512

    bcb796de15d4519b4d2c6a701bcb1b83bb5fd09d9a04ac31c66a82326d4ecba30bc8bde0dff5a4008b120d3d0642820e60d34264c2cb253ba04e7deb0323d430

  • SSDEEP

    12288:gFoO3mYoQxv9wQNWk9eGwk5Lq8RVDrlYGI/d8FR2ij6QnLkB:ghbhxv9wQNV5e8fGOwQnAB

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 5 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs
  • Detects executables packed with SmartAssembly 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 5 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 5 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 5 IoCs
  • 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 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf97d8ee1b61a6699e0a1ff3cda31252cfbd154804673d83dd68b1fee155f953.exe
    "C:\Users\Admin\AppData\Local\Temp\bf97d8ee1b61a6699e0a1ff3cda31252cfbd154804673d83dd68b1fee155f953.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1288
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hBdXlArIL.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2648
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hBdXlArIL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3B1D.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2820
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2816

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp3B1D.tmp
    Filesize

    1KB

    MD5

    b8087ab5473a982bac6ef0695b41fc28

    SHA1

    f15e15580e89bf0e0b3aad693c8f7b0300a35509

    SHA256

    4ba5104a408d02fdb482ffc6ff933317b88fa655441252acc4128708630e2781

    SHA512

    b9abe6fd72279ec81d5526b6093f6e599bb2512628363af9f876e4f3308527b6b264179f78c826b53e259b2485759b65ec78fa286d3e3a65ba9cea352eea4535

  • memory/1288-3-0x0000000000400000-0x0000000000412000-memory.dmp
    Filesize

    72KB

  • memory/1288-2-0x0000000004C20000-0x0000000004C60000-memory.dmp
    Filesize

    256KB

  • memory/1288-27-0x00000000740E0000-0x00000000747CE000-memory.dmp
    Filesize

    6.9MB

  • memory/1288-4-0x00000000004C0000-0x00000000004CC000-memory.dmp
    Filesize

    48KB

  • memory/1288-5-0x0000000005CC0000-0x0000000005D42000-memory.dmp
    Filesize

    520KB

  • memory/1288-0-0x0000000000250000-0x0000000000308000-memory.dmp
    Filesize

    736KB

  • memory/1288-1-0x00000000740E0000-0x00000000747CE000-memory.dmp
    Filesize

    6.9MB

  • memory/2648-33-0x000000006D990000-0x000000006DF3B000-memory.dmp
    Filesize

    5.7MB

  • memory/2648-32-0x0000000002CB0000-0x0000000002CF0000-memory.dmp
    Filesize

    256KB

  • memory/2648-31-0x000000006D990000-0x000000006DF3B000-memory.dmp
    Filesize

    5.7MB

  • memory/2648-29-0x0000000002CB0000-0x0000000002CF0000-memory.dmp
    Filesize

    256KB

  • memory/2648-28-0x000000006D990000-0x000000006DF3B000-memory.dmp
    Filesize

    5.7MB

  • memory/2816-22-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2816-24-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2816-26-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2816-21-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
    Filesize

    4KB

  • memory/2816-19-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2816-30-0x00000000740E0000-0x00000000747CE000-memory.dmp
    Filesize

    6.9MB

  • memory/2816-17-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2816-15-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2816-13-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2816-34-0x00000000740E0000-0x00000000747CE000-memory.dmp
    Filesize

    6.9MB

  • memory/2816-35-0x0000000004C90000-0x0000000004CD0000-memory.dmp
    Filesize

    256KB