Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    12-12-2024 08:17

General

  • Target

    e57af3c82f33302d9736c178410bce30_JaffaCakes118.exe

  • Size

    2.0MB

  • MD5

    e57af3c82f33302d9736c178410bce30

  • SHA1

    edd2f34ec0ea57edde129253790f70f5c0390bb0

  • SHA256

    607f1607762645b684f13cffccfbe4bc326f24707953dc0cfb80aff22def8df0

  • SHA512

    ef2f763b1349c23597bf16bcb6d03066b1d1f51eb59e61448d4955ac12d0d1e614428d4040285915021ad71aaadc202dcae97308a45cc20d339bcffd5a2d2c40

  • SSDEEP

    49152:3pVsby44mK/P4sFPfYQ1dNhq7LZw9PZOAIYZ4:Znmk9FIeDeZw9MAIe

Malware Config

Signatures

  • Jigsaw Ransomware

    Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.

  • Jigsaw family
  • Renames multiple (2021) files with added filename extension

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

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e57af3c82f33302d9736c178410bce30_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e57af3c82f33302d9736c178410bce30_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2588
    • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
      "C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\e57af3c82f33302d9736c178410bce30_JaffaCakes118.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      PID:2624

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Java\jdk1.7.0_80\jre\lib\images\cursors\invalid32x32.gif.kkk

    Filesize

    160B

    MD5

    c55a44def54d2d4ad446279e2396fd53

    SHA1

    f77e9719392509d2faadeb953d40a3810c100b83

    SHA256

    257c16c6967bc37b43934987963025ef860d83c198a5a0dc380f72638d6b47f6

    SHA512

    bd8f3b07592b9036ccd6778cf98e1604ee4e93f3273aed09869dd8ecd1a5c084bf2cadca3eb718c09bbc20487f19ad8848f8dc6e613b5b6155df741fd43a0c59

  • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe

    Filesize

    2.0MB

    MD5

    e57af3c82f33302d9736c178410bce30

    SHA1

    edd2f34ec0ea57edde129253790f70f5c0390bb0

    SHA256

    607f1607762645b684f13cffccfbe4bc326f24707953dc0cfb80aff22def8df0

    SHA512

    ef2f763b1349c23597bf16bcb6d03066b1d1f51eb59e61448d4955ac12d0d1e614428d4040285915021ad71aaadc202dcae97308a45cc20d339bcffd5a2d2c40

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\DNTException\container.dat.kkk

    Filesize

    16B

    MD5

    f676080bd90886ac2ecf680ac3162244

    SHA1

    30a721d56041472fcf0c255c3c05c89b76093101

    SHA256

    6e658c85e1ac3f1599673a2374ad5e8fb94520fe68b3f6eefdf108c42acc6414

    SHA512

    b654a04f020ca0ccb0e9f7ab964e0d6a998b15b02ec47cbcccfd1274b99fddeccdca688b1d39e3d82de28610624f8765b1f5ac52895072f7c4cdb824f1658960

  • C:\Users\Admin\AppData\Roaming\System32Work\EncryptedFileList.txt

    Filesize

    190KB

    MD5

    3fd1ba89a6718c5b8cacc96408aa33ae

    SHA1

    1dc5ccffff32e49a1515a9ab84d41a071fa60f40

    SHA256

    eb5bc035243b59473d7185c0d6916e163ca5934c5651bd0bf515993c454ffdb2

    SHA512

    3659dfe4fde76f62e0e45342b633a532ed792307bbe43d2ae350ab4b76f7d51fef7e5ae8cc3a435d9c0a47d89c5cff1298c6893b18c307c3647ee2b93f8f8d9a

  • C:\Users\Admin\Documents\NewHide.xlsx.kkk

    Filesize

    9KB

    MD5

    fe8741d10633a88804aea9308409ddef

    SHA1

    757ec30304d9804753c2675c1e0b170c2a68d07c

    SHA256

    5a88908f04b960d0fcd18425aff46f465a1318042b2234e55259f31a5eff55ba

    SHA512

    246a6fdd2e0f7c2be23048ca0636e1d1d7fc28942f798ce251b4a9953940f271a2f4c42c592290e6971ad8ac1e6547a9170f464e6cc791fc0e48daf706b25be9

  • memory/2588-9-0x000007FEF5400000-0x000007FEF5D9D000-memory.dmp

    Filesize

    9.6MB

  • memory/2588-0-0x000007FEF56BE000-0x000007FEF56BF000-memory.dmp

    Filesize

    4KB

  • memory/2588-1-0x000007FEF5400000-0x000007FEF5D9D000-memory.dmp

    Filesize

    9.6MB

  • memory/2588-2-0x000000001B1B0000-0x000000001B31A000-memory.dmp

    Filesize

    1.4MB

  • memory/2624-2042-0x000007FEF5400000-0x000007FEF5D9D000-memory.dmp

    Filesize

    9.6MB

  • memory/2624-11-0x000007FEF5400000-0x000007FEF5D9D000-memory.dmp

    Filesize

    9.6MB

  • memory/2624-13-0x000007FEF5400000-0x000007FEF5D9D000-memory.dmp

    Filesize

    9.6MB

  • memory/2624-10-0x000007FEF5400000-0x000007FEF5D9D000-memory.dmp

    Filesize

    9.6MB

  • memory/2624-2043-0x000007FEF5400000-0x000007FEF5D9D000-memory.dmp

    Filesize

    9.6MB

  • memory/2624-2046-0x000007FEF5400000-0x000007FEF5D9D000-memory.dmp

    Filesize

    9.6MB

  • memory/2624-2047-0x000007FEF5400000-0x000007FEF5D9D000-memory.dmp

    Filesize

    9.6MB

  • memory/2624-2049-0x000000001B5B0000-0x000000001B622000-memory.dmp

    Filesize

    456KB

  • memory/2624-2052-0x000007FEF5400000-0x000007FEF5D9D000-memory.dmp

    Filesize

    9.6MB

  • memory/2624-12-0x000007FEF5400000-0x000007FEF5D9D000-memory.dmp

    Filesize

    9.6MB

  • memory/2624-2054-0x000007FEF5400000-0x000007FEF5D9D000-memory.dmp

    Filesize

    9.6MB