Analysis

  • max time kernel
    142s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/06/2024, 01:18

General

  • Target
    c6bcb0e9ec3cddf2d9c1d0b7b068f6158944a1a1b3093509f22f0819ad7428b8.exe
  • Size 876KB
  • Sample240617-bpbbka1hmq
  • SHA256 c6bcb0e9ec3cddf2d9c1d0b7b068f6158944a1a1b3093509f22f0819ad7428b8
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://api.telegram.org/bot7364824528:AAG9rtiB3-_DVX2QruNTyk6Q9_aZ8x26egE/

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.

  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c6bcb0e9ec3cddf2d9c1d0b7b068f6158944a1a1b3093509f22f0819ad7428b8.exe
    "C:\Users\Admin\AppData\Local\Temp\c6bcb0e9ec3cddf2d9c1d0b7b068f6158944a1a1b3093509f22f0819ad7428b8.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3964
    • 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\c6bcb0e9ec3cddf2d9c1d0b7b068f6158944a1a1b3093509f22f0819ad7428b8.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4448
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\uSfXpUcEoGPm.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2360
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uSfXpUcEoGPm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp62C7.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1360
    • C:\Users\Admin\AppData\Local\Temp\c6bcb0e9ec3cddf2d9c1d0b7b068f6158944a1a1b3093509f22f0819ad7428b8.exe
      "C:\Users\Admin\AppData\Local\Temp\c6bcb0e9ec3cddf2d9c1d0b7b068f6158944a1a1b3093509f22f0819ad7428b8.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1456
  • 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=4440 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:948

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          c6bcb0e9ec3cddf2d9c1d0b7b068f6158944a1a1b3093509f22f0819ad7428b8.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\c6bcb0e9ec3cddf2d9c1d0b7b068f6158944a1a1b3093509f22f0819ad7428b8.exe.log
          • Size 1KB
          • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
          • MD5 SHA1 SHA512

          __PSScriptPolicyTest_koupzrzk.mqt.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_koupzrzk.mqt.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          tmp62C7.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\tmp62C7.tmp
          • Size 1KB
          • SHA256 66dbcc773b6fc066ce00b7f7d93e4bbb2c9f3acc597437d550704282d4571357
          • MD5 SHA1 SHA512

          memory/1456-25-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/1456-53-0x0000000005F50000-0x0000000005FA0000-memory.dmp

          memory/2360-28-0x0000000004980000-0x00000000049A2000-memory.dmp

          memory/2360-93-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/2360-31-0x0000000004A90000-0x0000000004AF6000-memory.dmp

          memory/2360-55-0x0000000070B40000-0x0000000070B8C000-memory.dmp

          memory/2360-87-0x0000000006FC0000-0x0000000006FD4000-memory.dmp

          memory/2360-86-0x0000000006FB0000-0x0000000006FBE000-memory.dmp

          memory/2360-85-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/2360-50-0x0000000005540000-0x0000000005894000-memory.dmp

          memory/2360-54-0x0000000006020000-0x0000000006052000-memory.dmp

          memory/2360-90-0x00000000070A0000-0x00000000070A8000-memory.dmp

          memory/2360-89-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/2360-88-0x00000000070C0000-0x00000000070DA000-memory.dmp

          memory/2360-21-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/2360-22-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/2360-23-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/3964-8-0x0000000005870000-0x000000000588A000-memory.dmp

          memory/3964-0-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

          memory/3964-11-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/3964-10-0x00000000083E0000-0x0000000008464000-memory.dmp

          memory/3964-29-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/3964-9-0x0000000000C80000-0x0000000000C90000-memory.dmp

          memory/3964-7-0x0000000005520000-0x00000000055BC000-memory.dmp

          memory/3964-6-0x0000000005260000-0x000000000526A000-memory.dmp

          memory/3964-5-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/3964-4-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

          memory/3964-3-0x00000000051B0000-0x0000000005242000-memory.dmp

          memory/3964-2-0x00000000058A0000-0x0000000005E44000-memory.dmp

          memory/3964-1-0x00000000006E0000-0x00000000007C2000-memory.dmp

          memory/4448-15-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/4448-58-0x0000000070B40000-0x0000000070B8C000-memory.dmp

          memory/4448-75-0x0000000006220000-0x000000000623E000-memory.dmp

          memory/4448-76-0x0000000006C70000-0x0000000006D13000-memory.dmp

          memory/4448-77-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/4448-78-0x00000000075C0000-0x0000000007C3A000-memory.dmp

          memory/4448-79-0x0000000006F80000-0x0000000006F9A000-memory.dmp

          memory/4448-80-0x0000000006FF0000-0x0000000006FFA000-memory.dmp

          memory/4448-81-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/4448-82-0x0000000007200000-0x0000000007296000-memory.dmp

          memory/4448-83-0x0000000007180000-0x0000000007191000-memory.dmp

          memory/4448-84-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/4448-52-0x0000000005CC0000-0x0000000005D0C000-memory.dmp

          memory/4448-51-0x0000000005010000-0x000000000502E000-memory.dmp

          memory/4448-30-0x0000000004C20000-0x0000000004C86000-memory.dmp

          memory/4448-20-0x0000000005060000-0x0000000005688000-memory.dmp

          memory/4448-17-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/4448-16-0x0000000002300000-0x0000000002336000-memory.dmp

          memory/4448-12-0x0000000074E40000-0x00000000755F0000-memory.dmp

          memory/4448-94-0x0000000074E40000-0x00000000755F0000-memory.dmp