Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-06-2023 08:17

General

  • Target

    804152064.exe

  • Size

    723KB

  • MD5

    331bc06d67e4078e0779a9a0a5d355b5

  • SHA1

    475924a69dee5e4a4ab1a66c944068fa2111db68

  • SHA256

    ad641230d3be8895193642d333ed88e1d6e94c209dfcb6c1932cd6a7f324a82f

  • SHA512

    8e30912ab46b825292955ad70f816a8a12171692272af563181630a4ec0e24de2dbb240c8cfbf666e6233fc9c58858d88de53164dde82a804066c842501c8fee

  • SSDEEP

    12288:sk+J/M+Jhewx/NscEQ+vgXK1HsaPbntTjlFhush1nPTs8HlaxYvR1toDvll2Hvk/:sl/thewlqB6pGjlfusbrs8UYvREblivu

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
  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\804152064.exe
    "C:\Users\Admin\AppData\Local\Temp\804152064.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4484
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\yZRXCHBD.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3568
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yZRXCHBD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp223D.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3768
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2268

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_npathkm3.e4z.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp223D.tmp

    Filesize

    1KB

    MD5

    c9a0b295118f0a3af613520279c68d31

    SHA1

    eb22e431585c298d9b0888015b662b75f5e3078e

    SHA256

    e636ef31f0263e77219ca73f25ef539c659e74c632cace3fdf66d724718dee00

    SHA512

    2a7bba474f31b085580f49c6ce9a90552387819676d6e8e002c60cbda2d0be0ae778308d75af8f0a0121dd288495a992202febae623ed3a14f4b72f447aa64bd

  • memory/2268-164-0x00000000050C0000-0x00000000050D0000-memory.dmp

    Filesize

    64KB

  • memory/2268-191-0x00000000050C0000-0x00000000050D0000-memory.dmp

    Filesize

    64KB

  • memory/2268-185-0x00000000066F0000-0x00000000068B2000-memory.dmp

    Filesize

    1.8MB

  • memory/2268-184-0x00000000064D0000-0x0000000006520000-memory.dmp

    Filesize

    320KB

  • memory/2268-151-0x0000000005010000-0x0000000005076000-memory.dmp

    Filesize

    408KB

  • memory/2268-146-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/3568-182-0x00000000075D0000-0x00000000075DA000-memory.dmp

    Filesize

    40KB

  • memory/3568-167-0x0000000070E20000-0x0000000070E6C000-memory.dmp

    Filesize

    304KB

  • memory/3568-144-0x0000000002920000-0x0000000002956000-memory.dmp

    Filesize

    216KB

  • memory/3568-148-0x0000000004E20000-0x0000000004E30000-memory.dmp

    Filesize

    64KB

  • memory/3568-149-0x0000000004E20000-0x0000000004E30000-memory.dmp

    Filesize

    64KB

  • memory/3568-188-0x0000000007880000-0x0000000007888000-memory.dmp

    Filesize

    32KB

  • memory/3568-165-0x0000000004E20000-0x0000000004E30000-memory.dmp

    Filesize

    64KB

  • memory/3568-153-0x0000000005B90000-0x0000000005BF6000-memory.dmp

    Filesize

    408KB

  • memory/3568-187-0x0000000007890000-0x00000000078AA000-memory.dmp

    Filesize

    104KB

  • memory/3568-186-0x0000000007790000-0x000000000779E000-memory.dmp

    Filesize

    56KB

  • memory/3568-163-0x0000000006250000-0x000000000626E000-memory.dmp

    Filesize

    120KB

  • memory/3568-152-0x0000000005290000-0x00000000052B2000-memory.dmp

    Filesize

    136KB

  • memory/3568-166-0x00000000071F0000-0x0000000007222000-memory.dmp

    Filesize

    200KB

  • memory/3568-147-0x0000000005460000-0x0000000005A88000-memory.dmp

    Filesize

    6.2MB

  • memory/3568-177-0x0000000006800000-0x000000000681E000-memory.dmp

    Filesize

    120KB

  • memory/3568-179-0x0000000007BA0000-0x000000000821A000-memory.dmp

    Filesize

    6.5MB

  • memory/3568-180-0x0000000007550000-0x000000000756A000-memory.dmp

    Filesize

    104KB

  • memory/3568-181-0x000000007F840000-0x000000007F850000-memory.dmp

    Filesize

    64KB

  • memory/3568-183-0x00000000077D0000-0x0000000007866000-memory.dmp

    Filesize

    600KB

  • memory/4484-135-0x0000000004CF0000-0x0000000004D82000-memory.dmp

    Filesize

    584KB

  • memory/4484-138-0x0000000004E50000-0x0000000004E60000-memory.dmp

    Filesize

    64KB

  • memory/4484-133-0x00000000003A0000-0x000000000045A000-memory.dmp

    Filesize

    744KB

  • memory/4484-137-0x0000000004E50000-0x0000000004E60000-memory.dmp

    Filesize

    64KB

  • memory/4484-134-0x0000000005360000-0x0000000005904000-memory.dmp

    Filesize

    5.6MB

  • memory/4484-139-0x0000000007EF0000-0x0000000007F8C000-memory.dmp

    Filesize

    624KB

  • memory/4484-136-0x0000000004CC0000-0x0000000004CCA000-memory.dmp

    Filesize

    40KB