Analysis

  • max time kernel
    142s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-05-2024 01:31

General

  • Target

    PURCHASE ORDER.exe

  • Size

    828KB

  • MD5

    8af5abb19bc5fcd7d8e7c7c930707e68

  • SHA1

    bc9724ebbdfc9f248a427c0bbe119a5d144c4fa1

  • SHA256

    25192b6de0b0ec0c8647deee54f87f54c6c122496a601cffbaa9fad85168af62

  • SHA512

    7cc597bb80e502eebd872f25f218f63b88ade93c81a5eca97bc960de04ade2e218c7cdb2eaf1fff7b08005cd4ae3846761de62def4cb7d8d3ac816b32c66582e

  • SSDEEP

    12288:OIQWET/mr9K+22BEEzFatnHbcmWSK86jENTkV0E+YfVZScyqg08kfl2aWUnTPea8:QWtb3BEVHC86YTkVVOkfl/beaooN5v8

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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5076
    • 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\PURCHASE ORDER.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5004
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\gmTKQwj.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1140
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gmTKQwj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4E2B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4264
    • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
      "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1224
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1328 --field-trial-handle=3060,i,1774866140584649235,8085848018931772189,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2788

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PURCHASE ORDER.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_oforowp5.idm.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp4E2B.tmp

      Filesize

      1KB

      MD5

      664ac22556ffcccfa605bd603096f013

      SHA1

      e49ff33bcf1740ac53655e424a3060f4dd47b1fd

      SHA256

      a4b6dd9fdada23a03e901a5886e3682f4e88617f9abe9ea502c957a4043e68ec

      SHA512

      64a15fdb5aaea6d7c9376aed1a4bfb25f95606a99295031af90b4e3bf62f964e2a4f006bce59eceb55914c06a59301ab9bf887da52e808d35d753064f447941d

    • memory/1140-76-0x0000000007320000-0x000000000733A000-memory.dmp

      Filesize

      104KB

    • memory/1140-75-0x0000000007960000-0x0000000007FDA000-memory.dmp

      Filesize

      6.5MB

    • memory/1140-91-0x0000000074D20000-0x00000000754D0000-memory.dmp

      Filesize

      7.7MB

    • memory/1140-83-0x0000000007560000-0x0000000007574000-memory.dmp

      Filesize

      80KB

    • memory/1140-24-0x0000000004F20000-0x0000000004F42000-memory.dmp

      Filesize

      136KB

    • memory/1140-81-0x0000000007550000-0x000000000755E000-memory.dmp

      Filesize

      56KB

    • memory/1140-80-0x0000000007520000-0x0000000007531000-memory.dmp

      Filesize

      68KB

    • memory/1140-78-0x00000000075A0000-0x0000000007636000-memory.dmp

      Filesize

      600KB

    • memory/1140-77-0x0000000007390000-0x000000000739A000-memory.dmp

      Filesize

      40KB

    • memory/1140-25-0x0000000005790000-0x00000000057F6000-memory.dmp

      Filesize

      408KB

    • memory/1140-73-0x00000000065F0000-0x000000000660E000-memory.dmp

      Filesize

      120KB

    • memory/1140-53-0x00000000713F0000-0x000000007143C000-memory.dmp

      Filesize

      304KB

    • memory/1140-52-0x0000000006FF0000-0x0000000007022000-memory.dmp

      Filesize

      200KB

    • memory/1140-21-0x0000000074D20000-0x00000000754D0000-memory.dmp

      Filesize

      7.7MB

    • memory/1140-20-0x0000000074D20000-0x00000000754D0000-memory.dmp

      Filesize

      7.7MB

    • memory/1140-23-0x0000000074D20000-0x00000000754D0000-memory.dmp

      Filesize

      7.7MB

    • memory/1224-82-0x0000000006ED0000-0x0000000006F20000-memory.dmp

      Filesize

      320KB

    • memory/1224-27-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/5004-19-0x0000000004CD0000-0x00000000052F8000-memory.dmp

      Filesize

      6.2MB

    • memory/5004-15-0x0000000000CB0000-0x0000000000CE6000-memory.dmp

      Filesize

      216KB

    • memory/5004-18-0x0000000074D20000-0x00000000754D0000-memory.dmp

      Filesize

      7.7MB

    • memory/5004-90-0x0000000074D20000-0x00000000754D0000-memory.dmp

      Filesize

      7.7MB

    • memory/5004-85-0x00000000070A0000-0x00000000070A8000-memory.dmp

      Filesize

      32KB

    • memory/5004-84-0x00000000070C0000-0x00000000070DA000-memory.dmp

      Filesize

      104KB

    • memory/5004-50-0x0000000005A70000-0x0000000005A8E000-memory.dmp

      Filesize

      120KB

    • memory/5004-51-0x0000000005F70000-0x0000000005FBC000-memory.dmp

      Filesize

      304KB

    • memory/5004-48-0x0000000005470000-0x00000000057C4000-memory.dmp

      Filesize

      3.3MB

    • memory/5004-16-0x0000000074D20000-0x00000000754D0000-memory.dmp

      Filesize

      7.7MB

    • memory/5004-54-0x00000000713F0000-0x000000007143C000-memory.dmp

      Filesize

      304KB

    • memory/5004-26-0x0000000005400000-0x0000000005466000-memory.dmp

      Filesize

      408KB

    • memory/5004-74-0x0000000006C70000-0x0000000006D13000-memory.dmp

      Filesize

      652KB

    • memory/5076-8-0x0000000005660000-0x0000000005670000-memory.dmp

      Filesize

      64KB

    • memory/5076-0-0x0000000074D2E000-0x0000000074D2F000-memory.dmp

      Filesize

      4KB

    • memory/5076-5-0x00000000051E0000-0x00000000051EA000-memory.dmp

      Filesize

      40KB

    • memory/5076-13-0x0000000074D2E000-0x0000000074D2F000-memory.dmp

      Filesize

      4KB

    • memory/5076-10-0x0000000010BF0000-0x0000000010C8C000-memory.dmp

      Filesize

      624KB

    • memory/5076-9-0x0000000002A40000-0x0000000002AC2000-memory.dmp

      Filesize

      520KB

    • memory/5076-3-0x0000000005230000-0x00000000052C2000-memory.dmp

      Filesize

      584KB

    • memory/5076-2-0x0000000005740000-0x0000000005CE4000-memory.dmp

      Filesize

      5.6MB

    • memory/5076-49-0x0000000074D20000-0x00000000754D0000-memory.dmp

      Filesize

      7.7MB

    • memory/5076-4-0x0000000074D20000-0x00000000754D0000-memory.dmp

      Filesize

      7.7MB

    • memory/5076-1-0x00000000006F0000-0x00000000007C4000-memory.dmp

      Filesize

      848KB

    • memory/5076-6-0x0000000005710000-0x0000000005732000-memory.dmp

      Filesize

      136KB

    • memory/5076-7-0x0000000005220000-0x000000000522C000-memory.dmp

      Filesize

      48KB