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Analysis

  • max time kernel
    160s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2022, 09:05

General

  • Target

    39bff9aa1a4551fe7c27316f4fb3bfe0634264901740e64204ae23d6146cebf1.exe

  • Size

    237KB

  • MD5

    17e2fcdbaf0724579c546d6ff79f33a2

  • SHA1

    5fef56eee5488758b969685092213a42cb775463

  • SHA256

    39bff9aa1a4551fe7c27316f4fb3bfe0634264901740e64204ae23d6146cebf1

  • SHA512

    0799ee12f6823f2e159adbb9815eabb45e97e474d518ce45305490708caa174a683d9f102d485caf04e8ff9bcd8141869ab3fd2d2b9be0c56ebac2644bbd0366

  • SSDEEP

    3072:TGvo6giwpW9DGD2VdKvY/gIg/CtTIuOmxkiozXgeXdHwTBf4Wgczc+0ie/53H:TG377xS2Vp2CeiorXdwTBgWx4/53H

Malware Config

Signatures

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • UAC bypass 3 TTPs 1 IoCs
  • ModiLoader Second Stage 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 3 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\39bff9aa1a4551fe7c27316f4fb3bfe0634264901740e64204ae23d6146cebf1.exe
    "C:\Users\Admin\AppData\Local\Temp\39bff9aa1a4551fe7c27316f4fb3bfe0634264901740e64204ae23d6146cebf1.exe"
    1⤵
    • Checks computer location settings
    • Checks whether UAC is enabled
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4120
    • C:\Windows\mstwain32.exe
      "C:\Windows\mstwain32.exe"
      2⤵
      • UAC bypass
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • System policy modification
      PID:2896
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4904

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\mstwain32.exe

    Filesize

    237KB

    MD5

    17e2fcdbaf0724579c546d6ff79f33a2

    SHA1

    5fef56eee5488758b969685092213a42cb775463

    SHA256

    39bff9aa1a4551fe7c27316f4fb3bfe0634264901740e64204ae23d6146cebf1

    SHA512

    0799ee12f6823f2e159adbb9815eabb45e97e474d518ce45305490708caa174a683d9f102d485caf04e8ff9bcd8141869ab3fd2d2b9be0c56ebac2644bbd0366

  • C:\Windows\mstwain32.exe

    Filesize

    237KB

    MD5

    17e2fcdbaf0724579c546d6ff79f33a2

    SHA1

    5fef56eee5488758b969685092213a42cb775463

    SHA256

    39bff9aa1a4551fe7c27316f4fb3bfe0634264901740e64204ae23d6146cebf1

    SHA512

    0799ee12f6823f2e159adbb9815eabb45e97e474d518ce45305490708caa174a683d9f102d485caf04e8ff9bcd8141869ab3fd2d2b9be0c56ebac2644bbd0366

  • C:\Windows\ntdtcstp.dll

    Filesize

    7KB

    MD5

    67587e25a971a141628d7f07bd40ffa0

    SHA1

    76fcd014539a3bb247cc0b761225f68bd6055f6b

    SHA256

    e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

    SHA512

    6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

  • C:\Windows\ntdtcstp.dll

    Filesize

    7KB

    MD5

    67587e25a971a141628d7f07bd40ffa0

    SHA1

    76fcd014539a3bb247cc0b761225f68bd6055f6b

    SHA256

    e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

    SHA512

    6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350