Analysis

  • max time kernel
    75s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/04/2023, 08:47

General

  • Target

    tmp.exe

  • Size

    1.7MB

  • MD5

    9315baa2d29e3202b3f14da5b927d329

  • SHA1

    8caa2fe421dec35ebc1bc3f5da31f0dedb6a4ddf

  • SHA256

    3c78f01d7f27410f7897b7367112b162816a19930d90ccba32f4043d40c4223f

  • SHA512

    14c7fafb725151ed28d44bc7f571d1bff7d3b5fafcfe205996da408dccf72538f066e740f59651fb1b9ad8f999d09f9374f020745b599aacefbe54406c0e6740

  • SSDEEP

    24576:2ZL20LiZ2VGym3Hxe/K/3xHOMHLP0JqwVniwhgDifkkFV0p79tDa:M20LikyPCII

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 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.

  • Gathers network information 2 TTPs 2 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4032
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ipconfig /release
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2528
      • C:\Windows\SysWOW64\ipconfig.exe
        ipconfig /release
        3⤵
        • Gathers network information
        PID:1384
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4732
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ipconfig /renew
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3368
      • C:\Windows\SysWOW64\ipconfig.exe
        ipconfig /renew
        3⤵
        • Gathers network information
        PID:1120
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1012

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nfpvmk2v.jyw.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1012-170-0x0000000005180000-0x0000000005190000-memory.dmp

    Filesize

    64KB

  • memory/1012-169-0x0000000006710000-0x0000000006760000-memory.dmp

    Filesize

    320KB

  • memory/1012-168-0x0000000006650000-0x000000000665A000-memory.dmp

    Filesize

    40KB

  • memory/1012-167-0x0000000006400000-0x0000000006492000-memory.dmp

    Filesize

    584KB

  • memory/1012-166-0x0000000005180000-0x0000000005190000-memory.dmp

    Filesize

    64KB

  • memory/1012-165-0x00000000057F0000-0x0000000005D94000-memory.dmp

    Filesize

    5.6MB

  • memory/1012-163-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/4032-155-0x0000000005BC0000-0x0000000005BD0000-memory.dmp

    Filesize

    64KB

  • memory/4032-134-0x0000000005F60000-0x0000000005F82000-memory.dmp

    Filesize

    136KB

  • memory/4032-135-0x0000000005BC0000-0x0000000005BD0000-memory.dmp

    Filesize

    64KB

  • memory/4032-133-0x0000000000F90000-0x0000000001154000-memory.dmp

    Filesize

    1.8MB

  • memory/4732-139-0x0000000002EC0000-0x0000000002ED0000-memory.dmp

    Filesize

    64KB

  • memory/4732-154-0x0000000007310000-0x000000000732A000-memory.dmp

    Filesize

    104KB

  • memory/4732-153-0x0000000002EC0000-0x0000000002ED0000-memory.dmp

    Filesize

    64KB

  • memory/4732-156-0x0000000002EC0000-0x0000000002ED0000-memory.dmp

    Filesize

    64KB

  • memory/4732-157-0x0000000002EC0000-0x0000000002ED0000-memory.dmp

    Filesize

    64KB

  • memory/4732-158-0x0000000002EC0000-0x0000000002ED0000-memory.dmp

    Filesize

    64KB

  • memory/4732-152-0x0000000007960000-0x0000000007FDA000-memory.dmp

    Filesize

    6.5MB

  • memory/4732-151-0x0000000006260000-0x000000000627E000-memory.dmp

    Filesize

    120KB

  • memory/4732-141-0x00000000054D0000-0x0000000005536000-memory.dmp

    Filesize

    408KB

  • memory/4732-140-0x0000000005460000-0x00000000054C6000-memory.dmp

    Filesize

    408KB

  • memory/4732-138-0x0000000002EC0000-0x0000000002ED0000-memory.dmp

    Filesize

    64KB

  • memory/4732-137-0x0000000005570000-0x0000000005B98000-memory.dmp

    Filesize

    6.2MB

  • memory/4732-136-0x0000000002930000-0x0000000002966000-memory.dmp

    Filesize

    216KB