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Analysis

  • max time kernel
    142s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/08/2024, 19:06

General

  • Target

    8b9d032d81de35dbfac370dba52361d9_JaffaCakes118.exe

  • Size

    123KB

  • MD5

    8b9d032d81de35dbfac370dba52361d9

  • SHA1

    752a3937eadfbab7a09ba0668c6f25b8f4a375a0

  • SHA256

    028a31459609973678807700449561ae82cc67f2506e4b63ae06fe5d9dc7e685

  • SHA512

    fdad08c9b3abf0a88a0ba2692387a1f22880f0843cf4714541ad7819f27164ac09e2e87817c7237925f25332178623db8acffd3e35855bbf36448f75cfba1385

  • SSDEEP

    3072:OeSQ41MZrrOwzrq5Ss9eYfphfFQkUcot3EpeBWLLUFx+c:OVYrJrOSsRwcpaFN

Score
8/10

Malware Config

Signatures

  • Manipulates Digital Signatures 1 TTPs 1 IoCs

    Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 6 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 13 IoCs
  • Drops file in Windows directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
  • Modifies data under HKEY_USERS 1 IoCs
  • Modifies registry class 4 IoCs
  • Runs regedit.exe 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b9d032d81de35dbfac370dba52361d9_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8b9d032d81de35dbfac370dba52361d9_JaffaCakes118.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4232
    • C:\Windows\iaccess32.exe
      C:\Windows\iaccess32.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2320
      • C:\Windows\SysWOW64\regedit.exe
        "C:\Windows\System32\regedit.exe" /s C:\Windows\tmlpcert2007
        3⤵
        • Manipulates Digital Signatures
        • System Location Discovery: System Language Discovery
        • Runs regedit.exe
        PID:1888
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Windows\system32\egaccess4_1071.dll"
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:3724
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv
    1⤵
      PID:2476

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\Instant Access\DesktopIcons\NOCREDITCARD.lnk

      Filesize

      2KB

      MD5

      733f97844cf27f72e3406574482a7b22

      SHA1

      3cdeb45fe76ef0d9fc059bc7a230a237d7df73b2

      SHA256

      89bafdbf6b69ce8314f0cf5c61844391b26323cdb9e2fc2f08d9bdb06a7466ff

      SHA512

      c25de28a39d4922d083e22341634bf7a42a7c7a4641103c3ddc7c9de5bee5a7b0e44f6db223e810da3437bd5ecd57f5ff4d32809970f741e4821488e74df1abc

    • C:\Program Files (x86)\Instant Access\Multi\20110122210119\dialerexe.ini

      Filesize

      668B

      MD5

      16b5591bdd548880bc1f93038d653f5d

      SHA1

      6c79456cf4c8fc0f561eea6d0b661f6eb7042472

      SHA256

      12d27cc9d0b4d43369d73b4c95205d0443f12bf89342ef15edd1fe67c8757169

      SHA512

      64b93c7f0f6d00b9e997475b308e7a183a364f121706f53b5ff75fe9d25ccfff3a87e92d0c551862789a8426df9837967aa25e5c3a3f245d05a0a1ee9a0631db

    • C:\Windows\SysWOW64\egaccess4_1071.dll

      Filesize

      76KB

      MD5

      b83f652ffa76451ae438954f89c02f62

      SHA1

      b3ba0014dd16cee5f6d4cfe7e28b2d5de79dc6dd

      SHA256

      f601991aa00cbe7001197affc0e3854ab76c51c05b9a6ca3e3f708fed876c32f

      SHA512

      965172a5ecd070ea6707ec9985ee3c135c06534561b90ae233e8049b247d87d529b8280f0faf2b0ed933f59c68844414726fa80c4d3119cffa4fdd1cb60eab83

    • C:\Windows\iaccess32.exe

      Filesize

      123KB

      MD5

      389ab558974809036a4a752df9224ee6

      SHA1

      5ca5db7d9ab7d270612272c338113a37ee0e9f8a

      SHA256

      7713143977d6b1115e802a30d106711ad8817089c05c5be4f9c35d99812bbb6e

      SHA512

      d2050850b657698057c79a4bdca3f6b0ee9f7240fa367e717a6febd896ad01060f27c2614c81a9e86dc79a07bcc0852ecb93f88f477aba32fa1f20a9219b6be9

    • C:\Windows\tmlpcert2007

      Filesize

      6KB

      MD5

      b103757bc3c714123b5efa26ff96a915

      SHA1

      991d6694c71736b59b9486339be44ae5e2b66fef

      SHA256

      eef8937445f24c2bcbe101419be42694e0e38628653a755ab29ecba357d81d48

      SHA512

      d04f2ab14ad4d3e06ea357b4c810515d73b32f2650533a5895ebf5d14b4b697752f25c0c371372e00faab661c0b051c33b8c25bf1226f30be5d6b8727dea81e1

    • memory/2320-5-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/2320-57-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/4232-0-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/4232-6-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB