Analysis

  • max time kernel
    140s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2023 01:49

General

  • Target

    55817a7453cd777b0ae9a0cc0c49358e6012558a55df445233098b4dc1de2623.exe

  • Size

    763KB

  • MD5

    f1bd9d7b95c0574bce081b4db67d9ac0

  • SHA1

    d0d03d247ab719476973ac4baa4cb6f1f7bc2bec

  • SHA256

    55817a7453cd777b0ae9a0cc0c49358e6012558a55df445233098b4dc1de2623

  • SHA512

    dc4e02f93eb46183674aaed63b7a7705e6c5e758092ea582d7e0fb46ef5606b581eecbb3bebae648bfe5b0b3bab4a8e9bb3f5658a3afed1b53e860a88db244f8

  • SSDEEP

    12288:4Nvq/IeD0XjZlSk0MCCbg/igCk/nUGaujjGGxXrTZYAO35XSnd2+k+koaNS:4lq/UFlEMCC8bva+/rrOJi

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6336364775:AAEDkjlLajiBt-8GN_k5ZdqGEnltWbPdH20/

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 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\55817a7453cd777b0ae9a0cc0c49358e6012558a55df445233098b4dc1de2623.exe
    "C:\Users\Admin\AppData\Local\Temp\55817a7453cd777b0ae9a0cc0c49358e6012558a55df445233098b4dc1de2623.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2268
    • 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\55817a7453cd777b0ae9a0cc0c49358e6012558a55df445233098b4dc1de2623.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3904
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OcJWPsN.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2724
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OcJWPsN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp86E3.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1788
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:3764
  • C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
    1⤵
      PID:5096
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k UnistackSvcGroup
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1732

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Scheduled Task/Job

    1
    T1053

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • 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\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
      Filesize

      18KB

      MD5

      058122f8d12fc5b89114ed4f7f7199fb

      SHA1

      9b61cf287fa8fae10da5347e1ce6c3cb6b9e1b22

      SHA256

      f2cff738ce093edc6f0a7cb77275efce5904098fd68584928ba90c79c1727e39

      SHA512

      e8b551cc13cba5901925e9be0e99755c6ceed1895cff0f389a6ada8c25efe49ab8e4ecec6f6bb1daf5f2a0d3ccc59dcb93bde3ee9bbb414d5bdd5ae7a6e9a87f

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_g0qxdglr.f4l.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp86E3.tmp
      Filesize

      1KB

      MD5

      3104a09f636da7fca6c3988bb5a3a2d7

      SHA1

      ef29a01b91d5cb73784385964fe711cb0fee8466

      SHA256

      ed8b166faae2b96c920f12d501c2bf88095ccb9bb96711eb3e22d52c753b1a7e

      SHA512

      c7042e4bc22013ab2d63c9ad39de9bba8e56d5ed97ea98dd695085ea3b0b0afbe246369664974e48df9aa4797b87c2f63719698e230a88d48da8fdf38dff55ec

    • memory/1732-140-0x000001F369250000-0x000001F369251000-memory.dmp
      Filesize

      4KB

    • memory/1732-141-0x000001F369250000-0x000001F369251000-memory.dmp
      Filesize

      4KB

    • memory/1732-102-0x000001F360B40000-0x000001F360B50000-memory.dmp
      Filesize

      64KB

    • memory/1732-148-0x000001F368E70000-0x000001F368E71000-memory.dmp
      Filesize

      4KB

    • memory/1732-118-0x000001F360C40000-0x000001F360C50000-memory.dmp
      Filesize

      64KB

    • memory/1732-134-0x000001F369220000-0x000001F369221000-memory.dmp
      Filesize

      4KB

    • memory/1732-135-0x000001F369250000-0x000001F369251000-memory.dmp
      Filesize

      4KB

    • memory/1732-170-0x000001F3690C0000-0x000001F3690C1000-memory.dmp
      Filesize

      4KB

    • memory/1732-169-0x000001F368FB0000-0x000001F368FB1000-memory.dmp
      Filesize

      4KB

    • memory/1732-168-0x000001F368FB0000-0x000001F368FB1000-memory.dmp
      Filesize

      4KB

    • memory/1732-166-0x000001F368FA0000-0x000001F368FA1000-memory.dmp
      Filesize

      4KB

    • memory/1732-136-0x000001F369250000-0x000001F369251000-memory.dmp
      Filesize

      4KB

    • memory/1732-154-0x000001F368DA0000-0x000001F368DA1000-memory.dmp
      Filesize

      4KB

    • memory/1732-151-0x000001F368E60000-0x000001F368E61000-memory.dmp
      Filesize

      4KB

    • memory/1732-137-0x000001F369250000-0x000001F369251000-memory.dmp
      Filesize

      4KB

    • memory/1732-138-0x000001F369250000-0x000001F369251000-memory.dmp
      Filesize

      4KB

    • memory/1732-139-0x000001F369250000-0x000001F369251000-memory.dmp
      Filesize

      4KB

    • memory/1732-146-0x000001F368E60000-0x000001F368E61000-memory.dmp
      Filesize

      4KB

    • memory/1732-142-0x000001F369250000-0x000001F369251000-memory.dmp
      Filesize

      4KB

    • memory/1732-145-0x000001F368E70000-0x000001F368E71000-memory.dmp
      Filesize

      4KB

    • memory/1732-144-0x000001F369250000-0x000001F369251000-memory.dmp
      Filesize

      4KB

    • memory/1732-143-0x000001F369250000-0x000001F369251000-memory.dmp
      Filesize

      4KB

    • memory/2268-23-0x0000000004D80000-0x0000000004D90000-memory.dmp
      Filesize

      64KB

    • memory/2268-1-0x0000000074E70000-0x0000000075620000-memory.dmp
      Filesize

      7.7MB

    • memory/2268-51-0x0000000074E70000-0x0000000075620000-memory.dmp
      Filesize

      7.7MB

    • memory/2268-7-0x0000000005410000-0x0000000005416000-memory.dmp
      Filesize

      24KB

    • memory/2268-2-0x0000000005460000-0x0000000005A04000-memory.dmp
      Filesize

      5.6MB

    • memory/2268-3-0x0000000004DB0000-0x0000000004E42000-memory.dmp
      Filesize

      584KB

    • memory/2268-5-0x0000000004E80000-0x0000000004E8A000-memory.dmp
      Filesize

      40KB

    • memory/2268-6-0x0000000005160000-0x0000000005170000-memory.dmp
      Filesize

      64KB

    • memory/2268-9-0x0000000006040000-0x00000000060DC000-memory.dmp
      Filesize

      624KB

    • memory/2268-10-0x0000000008C30000-0x0000000008CCC000-memory.dmp
      Filesize

      624KB

    • memory/2268-19-0x0000000074E70000-0x0000000075620000-memory.dmp
      Filesize

      7.7MB

    • memory/2268-8-0x0000000005420000-0x000000000542A000-memory.dmp
      Filesize

      40KB

    • memory/2268-4-0x0000000004D80000-0x0000000004D90000-memory.dmp
      Filesize

      64KB

    • memory/2268-0-0x0000000000320000-0x00000000003E4000-memory.dmp
      Filesize

      784KB

    • memory/2724-22-0x0000000074E70000-0x0000000075620000-memory.dmp
      Filesize

      7.7MB

    • memory/2724-57-0x00000000756D0000-0x000000007571C000-memory.dmp
      Filesize

      304KB

    • memory/2724-21-0x00000000027D0000-0x00000000027E0000-memory.dmp
      Filesize

      64KB

    • memory/2724-82-0x0000000007AB0000-0x000000000812A000-memory.dmp
      Filesize

      6.5MB

    • memory/2724-27-0x0000000005AF0000-0x0000000005B56000-memory.dmp
      Filesize

      408KB

    • memory/2724-26-0x0000000005850000-0x00000000058B6000-memory.dmp
      Filesize

      408KB

    • memory/2724-38-0x0000000005B60000-0x0000000005EB4000-memory.dmp
      Filesize

      3.3MB

    • memory/2724-52-0x0000000006140000-0x000000000615E000-memory.dmp
      Filesize

      120KB

    • memory/2724-88-0x00000000076B0000-0x00000000076C4000-memory.dmp
      Filesize

      80KB

    • memory/2724-89-0x00000000077B0000-0x00000000077CA000-memory.dmp
      Filesize

      104KB

    • memory/2724-90-0x0000000007790000-0x0000000007798000-memory.dmp
      Filesize

      32KB

    • memory/2724-80-0x0000000007130000-0x00000000071D3000-memory.dmp
      Filesize

      652KB

    • memory/2724-54-0x00000000070C0000-0x00000000070F2000-memory.dmp
      Filesize

      200KB

    • memory/2724-96-0x0000000074E70000-0x0000000075620000-memory.dmp
      Filesize

      7.7MB

    • memory/2724-53-0x00000000061F0000-0x000000000623C000-memory.dmp
      Filesize

      304KB

    • memory/2724-79-0x00000000027D0000-0x00000000027E0000-memory.dmp
      Filesize

      64KB

    • memory/2724-81-0x00000000027D0000-0x00000000027E0000-memory.dmp
      Filesize

      64KB

    • memory/2724-55-0x000000007F710000-0x000000007F720000-memory.dmp
      Filesize

      64KB

    • memory/3764-50-0x0000000005250000-0x0000000005260000-memory.dmp
      Filesize

      64KB

    • memory/3764-100-0x0000000074E70000-0x0000000075620000-memory.dmp
      Filesize

      7.7MB

    • memory/3764-28-0x0000000000400000-0x0000000000444000-memory.dmp
      Filesize

      272KB

    • memory/3764-39-0x0000000074E70000-0x0000000075620000-memory.dmp
      Filesize

      7.7MB

    • memory/3764-99-0x0000000006640000-0x0000000006690000-memory.dmp
      Filesize

      320KB

    • memory/3764-101-0x0000000005250000-0x0000000005260000-memory.dmp
      Filesize

      64KB

    • memory/3904-86-0x0000000007900000-0x0000000007911000-memory.dmp
      Filesize

      68KB

    • memory/3904-85-0x0000000007980000-0x0000000007A16000-memory.dmp
      Filesize

      600KB

    • memory/3904-87-0x0000000007930000-0x000000000793E000-memory.dmp
      Filesize

      56KB

    • memory/3904-56-0x00000000756D0000-0x000000007571C000-memory.dmp
      Filesize

      304KB

    • memory/3904-68-0x0000000007380000-0x000000000739E000-memory.dmp
      Filesize

      120KB

    • memory/3904-69-0x0000000002AC0000-0x0000000002AD0000-memory.dmp
      Filesize

      64KB

    • memory/3904-58-0x000000007F840000-0x000000007F850000-memory.dmp
      Filesize

      64KB

    • memory/3904-97-0x0000000074E70000-0x0000000075620000-memory.dmp
      Filesize

      7.7MB

    • memory/3904-84-0x0000000007770000-0x000000000777A000-memory.dmp
      Filesize

      40KB

    • memory/3904-25-0x0000000005400000-0x0000000005422000-memory.dmp
      Filesize

      136KB

    • memory/3904-20-0x0000000002AC0000-0x0000000002AD0000-memory.dmp
      Filesize

      64KB

    • memory/3904-83-0x0000000007700000-0x000000000771A000-memory.dmp
      Filesize

      104KB

    • memory/3904-16-0x00000000054C0000-0x0000000005AE8000-memory.dmp
      Filesize

      6.2MB

    • memory/3904-17-0x0000000074E70000-0x0000000075620000-memory.dmp
      Filesize

      7.7MB

    • memory/3904-18-0x0000000002AC0000-0x0000000002AD0000-memory.dmp
      Filesize

      64KB

    • memory/3904-15-0x0000000004E50000-0x0000000004E86000-memory.dmp
      Filesize

      216KB