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Analysis

  • max time kernel
    145s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    09/05/2024, 13:50

General

  • Target

    2a413fc28008906ff64b62daf1ea0ea7_JaffaCakes118.exe

  • Size

    909KB

  • MD5

    2a413fc28008906ff64b62daf1ea0ea7

  • SHA1

    efcf0308d29f9a821b32cb4e538b06a54d59b018

  • SHA256

    3a81dde4b638df30022d899c14177578688b06744f9bfbfc07071d653986e476

  • SHA512

    808a88389e51e3acb333890c5c260946efc99600cc123c142a63c706958444426b07adb5ec40c0443584ed20934df6c9be3e98b190166841758248fa1fb89d4f

  • SSDEEP

    24576:ZMMpXS0hN0V0HSSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0Nw:Kwi0L0qnTv

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Renames multiple (91) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • ASPack v2.12-2.42 3 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Drops startup file 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops autorun.inf file 1 TTPs 3 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2a413fc28008906ff64b62daf1ea0ea7_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\2a413fc28008906ff64b62daf1ea0ea7_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops startup file
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops autorun.inf file
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:1876
    • C:\Windows\SysWOW64\HelpMe.exe
      C:\Windows\system32\HelpMe.exe
      2⤵
      • Modifies WinLogon for persistence
      • Drops startup file
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops autorun.inf file
      • Drops file in System32 directory
      PID:2936

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\$Recycle.Bin\S-1-5-21-2248906074-2862704502-246302768-1000\desktop.ini.exe

    Filesize

    909KB

    MD5

    9ed460c698cfba3d65f6a548677fac6d

    SHA1

    dc75c782aad79d2b462456c1ea13babb9da0ce14

    SHA256

    517329631968a733288d9ded8dd73c48910ca652c3c5f339b5a6170e7aa50c50

    SHA512

    36b3559a9ef364af368758a17a0f4efe20fa2c7495ca0273ac4ab20354dfb08fad06abcffaea1a5488ede751a1624fd2e4404a0be202e983a892ac60d7a36f2b

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

    Filesize

    1KB

    MD5

    e2480e0f8f0343385777b2763a5fe223

    SHA1

    b211d604545c09cc264ab7b6ee1df62e9d2143a3

    SHA256

    29f23d591c690f0fbcf750243bafbc2b313511aa766901a3ac35eba01c2118e9

    SHA512

    dd57817557bc9766f87dcfe8c0de79470eb55f3f870ac6f9c9579bd825add64a6c84331480a7cc8dd56964b811b3cd92a97a4f784c452e51443f28b7b60f3abc

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

    Filesize

    950B

    MD5

    745ee286118b091328670bc3b49eeec2

    SHA1

    7edb46cef139aab725420d82d80e94327ea3d7db

    SHA256

    434b2f5e831f76a2b4f5bd6f676936309f2bfae55741ab2823f27f43e20123a5

    SHA512

    8b75f072fc5130bc6a5e0c6c4df692d9a50fbbf1bbfdcd94056bdcc7871a4355a89969690c7712fb695ea25dbcf7abf5f20e5f58171e392b1403ffa089ad7272

  • F:\AUTORUN.INF

    Filesize

    145B

    MD5

    ca13857b2fd3895a39f09d9dde3cca97

    SHA1

    8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

    SHA256

    cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

    SHA512

    55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

  • F:\AutoRun.exe

    Filesize

    909KB

    MD5

    2a413fc28008906ff64b62daf1ea0ea7

    SHA1

    efcf0308d29f9a821b32cb4e538b06a54d59b018

    SHA256

    3a81dde4b638df30022d899c14177578688b06744f9bfbfc07071d653986e476

    SHA512

    808a88389e51e3acb333890c5c260946efc99600cc123c142a63c706958444426b07adb5ec40c0443584ed20934df6c9be3e98b190166841758248fa1fb89d4f

  • \Windows\SysWOW64\HelpMe.exe

    Filesize

    750KB

    MD5

    0f4a11370c4bf46df2397042d445f84c

    SHA1

    b617773bc05ce671b21713028e77981d1c69601e

    SHA256

    4e4c9a72d72e1b9b6245c86e6cfa1d87547e186ffbc4e6c554262344baa1727d

    SHA512

    43f0f254ce46b7e26202c8cc484977b70ba44b03ca495ae22fe371862d03bb8262a6af9893e734150792e5a62f7411d058ec765605d7cc5c9d4ca2f571f2c102

  • memory/1876-271-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1876-249-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1876-228-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1876-361-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1876-238-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1876-240-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/1876-351-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1876-301-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1876-341-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1876-261-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1876-327-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1876-0-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/1876-321-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1876-281-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1876-311-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1876-291-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2936-250-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2936-292-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2936-302-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2936-282-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2936-312-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2936-272-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2936-322-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2936-262-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2936-328-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2936-9-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB

  • memory/2936-342-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2936-239-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2936-352-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2936-229-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2936-362-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB