Overview

overview

10

Static

static

3

de7500fc10...18.dll

windows7-x64

10

de7500fc10...18.dll

windows10-2004-x64

10

Analysis

  • max time kernel
    125s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/09/2024, 15:49

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General

  • Target

    de7500fc1065a081180841f32f06a537_JaffaCakes118.dll

  • Size

    136KB

  • MD5

    de7500fc1065a081180841f32f06a537

  • SHA1

    2004f191a052cee6b033acc518f1c64bb0b00ecd

  • SHA256

    95e08990fdf11251e9ee935f0b2e075667133758bc68c4d390e82f041a54e4b3

  • SHA512

    2a0d8e94998650cda91b64aeb4259fa6e4e00bd9d49769b37e5c98556c03addc1785654446c2759195cb7558f3553e155e9ee8d93a433211a308cbef3a9b34b9

  • SSDEEP

    3072:Pk5WpezDE6SWpAWF+BqBZZHm5ZkXTNtW7d4efrOnrsyTD:CztSWKWcBqBPHmOMd4efWhD

Score
10/10
discoveryevasionpersistence

Malware Config

Signatures

  • Modifies security service 2 TTPs 5 IoCs
    evasion
  • Drops file in Drivers directory 1 IoCs
  • Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
    persistence
  • Sets service image path in registry 2 TTPs 1 IoCs
    persistence
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

    discovery
  • Suspicious behavior: EnumeratesProcesses 62 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\de7500fc1065a081180841f32f06a537_JaffaCakes118.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2248
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\de7500fc1065a081180841f32f06a537_JaffaCakes118.dll
      2⤵
      • Modifies security service
      • Server Software Component: Terminal Services DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3968
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s /u "C:\Windows\system32\Msresjrv.ttf"
        3⤵
        • Drops file in Drivers directory
        • Sets service image path in registry
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: LoadsDriver
        • Suspicious use of AdjustPrivilegeToken
        PID:1600
  • 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 --field-trial-handle=3924,i,3861745594156495651,17595114179815238301,262144 --variations-seed-version --mojo-platform-channel-handle=4300 /prefetch:8
    1⤵
      PID:4968

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\SysWOW64\Msresjrv.ttf
      Filesize

      136KB

      MD5

      de7500fc1065a081180841f32f06a537

      SHA1

      2004f191a052cee6b033acc518f1c64bb0b00ecd

      SHA256

      95e08990fdf11251e9ee935f0b2e075667133758bc68c4d390e82f041a54e4b3

      SHA512

      2a0d8e94998650cda91b64aeb4259fa6e4e00bd9d49769b37e5c98556c03addc1785654446c2759195cb7558f3553e155e9ee8d93a433211a308cbef3a9b34b9

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