Analysis

  • max time kernel
    93s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-05-2024 10:34

General

  • Target

    THA-02187.pdf.exe

  • Size

    690KB

  • MD5

    ecfbc6343e85f36fda76a7b66a342475

  • SHA1

    59dd4a689d6e5fd4d07cc780a88d0b4902f369ee

  • SHA256

    3012b1cdc6d41423e99d57dac314df023f3e993fd42ee66f09553827ff616c79

  • SHA512

    2f635e264db29bdd871af05742e2695f65bc2fbad76e6736cccbed7495b1a9d5e81766a7fcd7844ec66898065a3f80d1130d48df3a3d27d3f99cc9baf19b4e2f

  • SSDEEP

    12288:EHm21680skSKSIwz4lvmi3vcso51aAO/CDebcxz/2R6iouQNvyKhkfZC614IpBK:EHp1680JSNIG4lvHcso515bN/2T45hwx

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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\THA-02187.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\THA-02187.pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2444
    • 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\THA-02187.pdf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4008
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\WfOTdjb.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2984
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WfOTdjb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp73A9.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1204
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1364

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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

    05ad98017f494a4c37d98e9792a93e9f

    SHA1

    73026e6524aa9468b1df28f6e8cb9b30fde51519

    SHA256

    7f66bb8fb126ce0c647cd2520dd636ea4656300b7efc94c0b85347cf62f48bd3

    SHA512

    3e2854e369345a8c5aa73d3d2d058abfac6a0046b71223277f32d66d6cfffc1b26ebca0f41c963997a5e52e0b0fc007d0cc3e1eb5647fde127df72291db0c180

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_x41niura.mgw.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp73A9.tmp

    Filesize

    1KB

    MD5

    039336018226a8eb8435ed149820297a

    SHA1

    52dbc7a6280d4711e1439d694dc46d2f4b3bbeb9

    SHA256

    540f615a8a967992caea31b9167329976b3649976bbc5289321cfccb6b922fc9

    SHA512

    59a6b5720d5e87d395e3c6b3b83c2fe3f0c8edd0e6c7f477d2b37cb6232d63849ba1863f0c8bc82c44899be8222d95394ed9cde3a0e2bf85f0f64ae7f13d3d86

  • memory/1364-89-0x0000000006510000-0x0000000006560000-memory.dmp

    Filesize

    320KB

  • memory/1364-44-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2444-5-0x0000000004D50000-0x0000000004D5A000-memory.dmp

    Filesize

    40KB

  • memory/2444-7-0x00000000050F0000-0x0000000005100000-memory.dmp

    Filesize

    64KB

  • memory/2444-8-0x00000000061D0000-0x0000000006252000-memory.dmp

    Filesize

    520KB

  • memory/2444-9-0x0000000008940000-0x00000000089DC000-memory.dmp

    Filesize

    624KB

  • memory/2444-6-0x00000000050C0000-0x00000000050DE000-memory.dmp

    Filesize

    120KB

  • memory/2444-4-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/2444-3-0x0000000004CA0000-0x0000000004D32000-memory.dmp

    Filesize

    584KB

  • memory/2444-0-0x00000000745BE000-0x00000000745BF000-memory.dmp

    Filesize

    4KB

  • memory/2444-2-0x0000000005160000-0x0000000005704000-memory.dmp

    Filesize

    5.6MB

  • memory/2444-47-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/2444-1-0x0000000000200000-0x00000000002B2000-memory.dmp

    Filesize

    712KB

  • memory/2984-74-0x0000000007190000-0x00000000071AA000-memory.dmp

    Filesize

    104KB

  • memory/2984-61-0x0000000074E40000-0x0000000074E8C000-memory.dmp

    Filesize

    304KB

  • memory/2984-42-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/2984-88-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/2984-15-0x00000000051C0000-0x00000000057E8000-memory.dmp

    Filesize

    6.2MB

  • memory/2984-79-0x00000000075E0000-0x00000000075F4000-memory.dmp

    Filesize

    80KB

  • memory/2984-43-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/2984-45-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/2984-75-0x0000000007410000-0x000000000741A000-memory.dmp

    Filesize

    40KB

  • memory/2984-49-0x00000000065B0000-0x00000000065FC000-memory.dmp

    Filesize

    304KB

  • memory/2984-48-0x0000000006070000-0x000000000608E000-memory.dmp

    Filesize

    120KB

  • memory/2984-73-0x0000000007A70000-0x00000000080EA000-memory.dmp

    Filesize

    6.5MB

  • memory/4008-21-0x0000000005530000-0x0000000005596000-memory.dmp

    Filesize

    408KB

  • memory/4008-78-0x00000000070F0000-0x00000000070FE000-memory.dmp

    Filesize

    56KB

  • memory/4008-51-0x0000000074E40000-0x0000000074E8C000-memory.dmp

    Filesize

    304KB

  • memory/4008-72-0x0000000006D70000-0x0000000006E13000-memory.dmp

    Filesize

    652KB

  • memory/4008-17-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/4008-50-0x0000000006B20000-0x0000000006B52000-memory.dmp

    Filesize

    200KB

  • memory/4008-33-0x00000000055E0000-0x0000000005934000-memory.dmp

    Filesize

    3.3MB

  • memory/4008-76-0x0000000007140000-0x00000000071D6000-memory.dmp

    Filesize

    600KB

  • memory/4008-77-0x00000000070C0000-0x00000000070D1000-memory.dmp

    Filesize

    68KB

  • memory/4008-67-0x0000000006B00000-0x0000000006B1E000-memory.dmp

    Filesize

    120KB

  • memory/4008-20-0x00000000054C0000-0x0000000005526000-memory.dmp

    Filesize

    408KB

  • memory/4008-80-0x0000000007200000-0x000000000721A000-memory.dmp

    Filesize

    104KB

  • memory/4008-81-0x00000000071E0000-0x00000000071E8000-memory.dmp

    Filesize

    32KB

  • memory/4008-84-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/4008-22-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/4008-16-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/4008-19-0x0000000004CD0000-0x0000000004CF2000-memory.dmp

    Filesize

    136KB

  • memory/4008-14-0x0000000000E10000-0x0000000000E46000-memory.dmp

    Filesize

    216KB