Analysis

  • max time kernel
    144s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2024 18:44

General

  • Target

    c8f43f03945d4acdb249b83d6d3fcd69_JaffaCakes118.exe

  • Size

    132KB

  • MD5

    c8f43f03945d4acdb249b83d6d3fcd69

  • SHA1

    3f5f4a3757dcc930a035cbbb220249f2a98e5bb8

  • SHA256

    bc32a42d79f013887998f7da1c3039ea14d45dedd46c1a9656293e99af54fe5a

  • SHA512

    8208f487d757f868bd3409a9534119c88bd0d8938cdbe4b7642e4d7c2524598d7fd4d6ad09667bb0f1a333c5aafd25874da3174be514a792d4702a8b1156093e

  • SSDEEP

    3072:EUfrSzltkzP/1MS2RU4DvwOcY7ABfre2QglSvS332d:EqrSzSn1gU4Dr74enSGd

Malware Config

Signatures

  • ModiLoader, DBatLoader

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

  • Modiloader family
  • UAC bypass 3 TTPs 1 IoCs
  • ModiLoader Second Stage 16 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 3 IoCs
  • UPX packed file 18 IoCs

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

  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • System policy modification 1 TTPs 1 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\c8f43f03945d4acdb249b83d6d3fcd69_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\c8f43f03945d4acdb249b83d6d3fcd69_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1184
    • C:\Users\Admin\AppData\Local\Temp\decrypted.exe
      "C:\Users\Admin\AppData\Local\Temp\decrypted.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4440
      • C:\Windows\mstwain32.exe
        "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\decrypted.exe"
        3⤵
        • UAC bypass
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • System policy modification
        PID:1920
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2328

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\decrypted.exe

    Filesize

    108KB

    MD5

    ff96661ce4bfdde3d810b1303cba897e

    SHA1

    88831b4278fcb858b3d75d6541d0cdbeb8042d63

    SHA256

    e93bfdbaaebd5fbdba580d67472b2a2e25acfcf2a445a7e7944a4ef92e025fd6

    SHA512

    1d9031c933069cb5eccb70f40dbb825aa1a426ca1ae4c98aa9ffe6efe00e8b69fee7098a248059d5bed4527fe61eeb8e8bcdf27b66dd5f31d6acd68d3638c8ca

  • C:\Windows\cmsetac.dll

    Filesize

    33KB

    MD5

    7c3ff4d4d394fde7c693d04c488a55f8

    SHA1

    ae2b2acc7e91a910f9075e0e095b528e97827ba4

    SHA256

    4878bf71fd37ffac1fd6f5153357298544d0ef1f3a114c1f0451befcb85c59a8

    SHA512

    33c601d9e706cff0c3dce8280b040c361aa51004fd20b51946469b6a02453def5a7aad1e5f58bec3435cc6e25470155d07f71dc0f81ec642efc53215d7be316a

  • C:\Windows\ntdtcstp.dll

    Filesize

    7KB

    MD5

    67587e25a971a141628d7f07bd40ffa0

    SHA1

    76fcd014539a3bb247cc0b761225f68bd6055f6b

    SHA256

    e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

    SHA512

    6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

  • memory/1920-40-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1920-46-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1920-29-0x0000000000610000-0x0000000000611000-memory.dmp

    Filesize

    4KB

  • memory/1920-76-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1920-33-0x0000000002240000-0x000000000224E000-memory.dmp

    Filesize

    56KB

  • memory/1920-36-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1920-37-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1920-39-0x0000000002240000-0x000000000224E000-memory.dmp

    Filesize

    56KB

  • memory/1920-38-0x0000000000860000-0x0000000000868000-memory.dmp

    Filesize

    32KB

  • memory/1920-73-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1920-43-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1920-70-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1920-49-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1920-52-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1920-55-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1920-58-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1920-61-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1920-64-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/1920-67-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/4440-21-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/4440-9-0x0000000000400000-0x0000000000450000-memory.dmp

    Filesize

    320KB

  • memory/4440-20-0x0000000000A50000-0x0000000000A51000-memory.dmp

    Filesize

    4KB