Analysis

  • max time kernel
    133s
  • max time network
    104s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-07-2024 03:48

General

  • Target

    dd6f11369c7851bd5f3553e8d9516214.exe

  • Size

    214KB

  • MD5

    dd6f11369c7851bd5f3553e8d9516214

  • SHA1

    b2d9f99e12ac6d0e1adb70f883a220ae6e28752c

  • SHA256

    c897c6077d4a6dece0df7d91eaf9bc6be011c92b5261012ca0fa896600caaa30

  • SHA512

    5b0cce7f1ec91d4365e443c53e7ea173b3c1a22850734de68efb9692a484967fe5ce5cb38d15df90eef8ea3119f53ae8b536fed5e32df57fb2caa0ac73004973

  • SSDEEP

    3072:ZhpAyazIlyazTIFTZIPrsrVbmTk31LI2cu8vKLiGaiWdPHabe571Y:hZMazU8DsrVbmTC1Ltc1OiGa7dY1

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • 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 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dd6f11369c7851bd5f3553e8d9516214.exe
    "C:\Users\Admin\AppData\Local\Temp\dd6f11369c7851bd5f3553e8d9516214.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2964
    • C:\Users\Admin\AppData\Local\Temp\Oby63J9msyz1JTL.exe
      C:\Users\Admin\AppData\Local\Temp\Oby63J9msyz1JTL.exe
      2⤵
      • Executes dropped EXE
      PID:2484
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:648

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Collection

Data from Local System

1
T1005

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml
    Filesize

    392KB

    MD5

    8a88adcbad5564148b37f6a47133e9f0

    SHA1

    4534031f07b3593e87248a393bfe3815522ab9d6

    SHA256

    73b5861403d350a5daf2d158b11e4e8d35a1764a65814021d0880bd8701f5bde

    SHA512

    95cc560f39e41843a164ca9c15564b79769b67a3a652a051823ea655e79ff675adaddfbba14e920b92237823292c2c4f53032d7f08e2a94a961ec2b9e07ae910

  • C:\Users\Admin\AppData\Local\Temp\Oby63J9msyz1JTL.exe
    Filesize

    143KB

    MD5

    38f108cddb6619fba80f8382d5227ece

    SHA1

    12fd277bf756f22cfae3043900e4aff8b9f05ed9

    SHA256

    8296fe257b8c34398e3f291764454ec3cd9cbe06d60989b632ef4ba6c73ae5dc

    SHA512

    3db732c23f10122c78cffc6b6a5b11836ade1a23f5c6f9a192f2be2fa99c5bd7afb7a9e29c5d518a888cdd2091f9ac41b244214be226152830e96f5ec2cca424

  • C:\Windows\CTS.exe
    Filesize

    71KB

    MD5

    66df4ffab62e674af2e75b163563fc0b

    SHA1

    dec8a197312e41eeb3cfef01cb2a443f0205cd6e

    SHA256

    075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

    SHA512

    1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

  • memory/2484-11-0x00007FFB832B3000-0x00007FFB832B5000-memory.dmp
    Filesize

    8KB

  • memory/2484-13-0x0000000000190000-0x00000000001B8000-memory.dmp
    Filesize

    160KB

  • memory/2484-22-0x00007FFB832B0000-0x00007FFB83D71000-memory.dmp
    Filesize

    10.8MB

  • memory/2484-32-0x00007FFB832B0000-0x00007FFB83D71000-memory.dmp
    Filesize

    10.8MB