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Analysis

  • max time kernel
    140s
  • max time network
    104s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/08/2024, 15:56

General

  • Target

    b4179a12d153eca9ea09164b2988683a_JaffaCakes118.exe

  • Size

    126KB

  • MD5

    b4179a12d153eca9ea09164b2988683a

  • SHA1

    cd103243e3706ec5e3f78dd7cb75d7a73c54e2b7

  • SHA256

    038b38ff61f3a9018c910e24a7c5f1866fd167d52f55a2311c9a4932e5750aff

  • SHA512

    af97b8432b4bb1ee51543b823feac9d7cf2b894ded55c6a7a1eda8bc9fe5c39c73d8e7a6317e5917ccb53c199040523bfcada5007df2896749655f0fa59dcb24

  • SSDEEP

    3072:teSQ41MZrrOwzrq5Ss9eYfphfFQkUcot3EpeBWLsMeDLe:tVYrJrOSsRwcpwS

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 7 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 9 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 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\b4179a12d153eca9ea09164b2988683a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b4179a12d153eca9ea09164b2988683a_JaffaCakes118.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3248
    • 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 data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2452
      • 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:5004
      • 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:1316
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv
    1⤵
      PID:640

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files (x86)\Instant Access\Multi\20110112100129\dialerexe.ini

      Filesize

      616B

      MD5

      17f3ce71f1adb02e9ee92904343da577

      SHA1

      f6cc7ecaf27a5a0bf185c87daa8b3b461c587a03

      SHA256

      44afbdbabae57c08744bbd7bae914bb06248991f99fc6618a6f3ae44acc93714

      SHA512

      95fdfda0928309c7184c36ed06927a2b851fa16411da0f02eccb493a80bfe041836988c3ae7af1380f5fb04c943e65058e5161e0eaf2426501d18ee34961b1f0

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\NoCreditCard.lnk

      Filesize

      2KB

      MD5

      c869cbe458069098fe90ba0144d46ff7

      SHA1

      2b5e9125ade144718effd5dde623a6c15dba8d6d

      SHA256

      5a439a0c9b03602ece65aa712eb207ec58b6bf7fa869deca6bb3e0af34790752

      SHA512

      3c4d4acc3bf8190bf3722874dcb3e45b28fb5b2450c2620a83e9f2a198677380392547b729642164a3e21accdd49ce889ada214bf4d0c6c6cfd292362648474f

    • C:\Users\Public\Desktop\NoCreditCard.lnk

      Filesize

      2KB

      MD5

      4d114d3333b257f43a02d7d2c2f47ec4

      SHA1

      2e287c67880be2689e24919873ce8c7a2feb4427

      SHA256

      26def2bef4cc0acbfcaaf04c1cd922937c51ad20b42f32511b5efb24a4504f39

      SHA512

      1b484a5d9f1a17fa6fd9b35e394d89b2ffb43ea676ed8e805bcad086b0cd57e5a0937bbd302e75eb9fe227005354a186dac550ae7dd6ecedf802b4a3587b5a4e

    • C:\Windows\SysWOW64\egaccess4_1071.dll

      Filesize

      76KB

      MD5

      b83f652ffa76451ae438954f89c02f62

      SHA1

      b3ba0014dd16cee5f6d4cfe7e28b2d5de79dc6dd

      SHA256

      f601991aa00cbe7001197affc0e3854ab76c51c05b9a6ca3e3f708fed876c32f

      SHA512

      965172a5ecd070ea6707ec9985ee3c135c06534561b90ae233e8049b247d87d529b8280f0faf2b0ed933f59c68844414726fa80c4d3119cffa4fdd1cb60eab83

    • C:\Windows\iaccess32.exe

      Filesize

      126KB

      MD5

      f689487b9bfe149e9819c027940e5ecf

      SHA1

      ad4aa886fba5dfa2558882edcadcc864a673be5d

      SHA256

      4aed6f73622cb0721388fa6affb9443d36f552d02a8fd2d5a82f13bb0460dd55

      SHA512

      8b040d06b9153f1768091944b881010893d6188ccbf6aaae03206fd365fc1926fda169243f98a9c179bc604a614bc7c5291bd0015a74753d2c7ec2c049614a6e

    • C:\Windows\tmlpcert2007

      Filesize

      6KB

      MD5

      b103757bc3c714123b5efa26ff96a915

      SHA1

      991d6694c71736b59b9486339be44ae5e2b66fef

      SHA256

      eef8937445f24c2bcbe101419be42694e0e38628653a755ab29ecba357d81d48

      SHA512

      d04f2ab14ad4d3e06ea357b4c810515d73b32f2650533a5895ebf5d14b4b697752f25c0c371372e00faab661c0b051c33b8c25bf1226f30be5d6b8727dea81e1

    • memory/1316-25-0x0000000010000000-0x0000000010047000-memory.dmp

      Filesize

      284KB

    • memory/2452-5-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/2452-53-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/3248-0-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/3248-7-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB