Overview

overview

10

Static

static

7

WinLocker ....4.exe

windows10-1703-x64

10

WinLocker ....4.exe

windows7-x64

10

WinLocker ....4.exe

windows10-2004-x64

10

WinLocker ....4.exe

windows11-21h2-x64

10

WinLocker ....4.exe

ubuntu-18.04-amd64

WinLocker ....4.exe

debian-9-armhf

WinLocker ....4.exe

debian-9-mips

WinLocker ....4.exe

debian-9-mipsel

Analysis

  • max time kernel
    1801s
  • max time network
    1802s
  • 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 14:39

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General

  • Target

    WinLocker Builder v1.4.exe

  • Size

    699KB

  • MD5

    81dd862410af80c9d2717af912778332

  • SHA1

    8f1df476f58441db5973ccfdc211c8680808ffe1

  • SHA256

    60e76eda46185d1d2e9463d15e31d4c87eb03535d368cc3471c55992bc99ad5f

  • SHA512

    8dd014b91fb1e2122d2e4da444db78dd551513c500d447bb1e94ceb7f2f8d45223a8a706e2156102f8c8850d2bb02ae6b8ea0c9282abd7baaa2c84130112af15

  • SSDEEP

    12288:0L/xX5KVeOnuH/u1Wig295xsmVXf6AaQLmEc+pdmWSwIHUOS6Vp:0bxpUz13g27raQmEcomWSHHUD

Score
10/10
modiloaderpersistencetrojanupx

Malware Config

Signatures

  • ModiLoader, DBatLoader

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

    trojanmodiloader
  • ModiLoader Second Stage 9 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • UPX packed file 9 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 49 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\WinLocker Builder v1.4.exe
    "C:\Users\Admin\AppData\Local\Temp\WinLocker Builder v1.4.exe"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3256
    • C:\Users\Admin\AppData\Local\Temp\Upx.exe
      "C:\Users\Admin\AppData\Local\Temp\Upx.exe" "C:\Users\Admin\Desktop\123123.exe"
      2⤵
      • Executes dropped EXE
      PID:3140
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
    1⤵
      PID:2584
    • C:\Users\Admin\Desktop\123123.exe
      "C:\Users\Admin\Desktop\123123.exe"
      1⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      PID:4048
    • 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=4060 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:3132
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2428
      • 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=2152 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:3584

        Network

        MITRE ATT&CK Matrix ATT&CK v13

        Initial Access

        Execution

        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

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        2
        T1082

        Lateral Movement

        Collection

        Exfiltration

        Command and Control

        Impact

        Resource Development

        Reconnaissance

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          283KB

          MD5

          308f709a8f01371a6dd088a793e65a5f

          SHA1

          a07c073d807ab0119b090821ee29edaae481e530

          SHA256

          c0f9faffdf14ab2c853880457be19a237b10f8986755f184ecfe21670076cb35

          SHA512

          c107f1af768d533d02fb82ae2ed5c126c63b53b11a2e5a5bbf45e396cb7796ca4e7984ce969b487ad38d817f4d4366e7953fb555b279aa019ffb5d1bbba57e28

          Download Submit
        • C:\Users\Admin\Desktop\123123.exe
          Filesize

          387KB

          MD5

          7335fc512377e72533c3d6c182c7f109

          SHA1

          a775ae9c569d590b6a5b26fc76a4d0f606ef68db

          SHA256

          79b94a3e044f115fd41e2af3b885726054d82568e7871e92d34404feb1d7cf54

          SHA512

          9132af7d45abf14baa9d2bb1e2c2dec85a4d8cfc45419be4914b03d24cb9e6483c12bf8931eb7e177708356aa1e6b4b29f3805455eebc13f249beb1078c7078e

          Download Submit
        • C:\Users\Admin\Desktop\123123.exe
          Filesize

          156KB

          MD5

          5db99ff87758e0b820d0bcc3ac1acea3

          SHA1

          1e450845af3a9a065345c97d6036f50104051645

          SHA256

          5ce50208bfc92741fd650d5a99a3a08d9b6b3336472eb49153fc3d937b4f49f8

          SHA512

          fe0ac4d1c43565cf8e8af353d0b34cfa99e41402612ab38cdbb01a010c342db2db7a3f3c9d37dd9e1d0f529d613c451f8f38c5fdd620a865da5aeffef116da29

          Download Submit
        • memory/3140-59-0x0000000000400000-0x000000000057E000-memory.dmp
          Filesize

          1.5MB

          Download
        • memory/3140-38-0x0000000000400000-0x000000000057E000-memory.dmp
          Filesize

          1.5MB

          Download
        • memory/3256-4-0x0000000000870000-0x0000000000871000-memory.dmp
          Filesize

          4KB

          Download
        • memory/3256-5-0x0000000000400000-0x0000000000545000-memory.dmp
          Filesize

          1.3MB

          Download
        • memory/3256-0-0x0000000000400000-0x0000000000545000-memory.dmp
          Filesize

          1.3MB

          Download
        • memory/3256-3-0x0000000000400000-0x0000000000545000-memory.dmp
          Filesize

          1.3MB

          Download
        • memory/3256-2-0x0000000000400000-0x0000000000545000-memory.dmp
          Filesize

          1.3MB

          Download
        • memory/3256-60-0x0000000000400000-0x0000000000545000-memory.dmp
          Filesize

          1.3MB

          Download
        • memory/3256-1-0x0000000000870000-0x0000000000871000-memory.dmp
          Filesize

          4KB

          Download
        • memory/4048-62-0x0000000000400000-0x000000000046B000-memory.dmp
          Filesize

          428KB

          Download
        • memory/4048-64-0x0000000000940000-0x0000000000941000-memory.dmp
          Filesize

          4KB

          Download
        • memory/4048-66-0x0000000000400000-0x000000000046B000-memory.dmp
          Filesize

          428KB

          Download
        • memory/4048-69-0x0000000000400000-0x000000000046B000-memory.dmp
          Filesize

          428KB

          Download
        • memory/4048-71-0x0000000000400000-0x000000000046B000-memory.dmp
          Filesize

          428KB

          Download
        • memory/4048-123-0x0000000000400000-0x000000000046B000-memory.dmp
          Filesize

          428KB

          Download