Analysis

  • max time kernel
    146s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    17-06-2024 04:20

General

  • Target

    b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe

  • Size

    958KB

  • MD5

    b6b8b4a3bc16c2f4b558ed1e4516c944

  • SHA1

    9952e8cc06cc8509fa9b2b0d2708c46a7dcb5aa8

  • SHA256

    8741ccbf5c4054699732d5414e86346a851aeecf954900a1c9bf614f11af4230

  • SHA512

    0344cdf8cd666595a7fb16dee0bbf6dd80fd3e849d0bffaaa67b0ae43013598f920a1bd6916f05b56d07ab5a178c33606b488d03f91a3a611609bdf627a5d49b

  • SSDEEP

    24576:TEtl9mRda1cSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0NuJvT:oEs1hV

Score
10/10

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.

  • 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\b6b8b4a3bc16c2f4b558ed1e4516c944_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b6b8b4a3bc16c2f4b558ed1e4516c944_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:2576
    • 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:3032

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\$Recycle.Bin\S-1-5-21-39690363-730359138-1046745555-1000\desktop.ini.exe

    Filesize

    959KB

    MD5

    a41d0325347e1216b6bcf69f4d7c80c5

    SHA1

    1605087728bc044400f238f74a454f7aca4427b5

    SHA256

    8fa687d9f15fc91a5ea1cde367b3116da296bf995a06d8cd4f1879dd27d587b3

    SHA512

    5c24293f730465ad18e472597dc26aebcf3bbad076bc05a58ea4df5bea90159a210fe5aaddbb6288e6c4089f0e78befd8235b2a54f571c630d355d4bfba891d7

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

    Filesize

    1KB

    MD5

    ed5a8222d853afdc411e846bcb462678

    SHA1

    f3039025458e013e1303d9f6074bb458551feec3

    SHA256

    12a5f1f044f9dbcbb34c8add13786b4c9ff745ef40ae4c5578e75289508e7070

    SHA512

    b6cc698d8bd3cb0c2fa69e78076b1e9193bda3a1ee5925f128bf98672924cbb354be6f93c27a0eae57812410fbeca0d32b19fe6553737bdc533a3343bc6cc572

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

    Filesize

    946B

    MD5

    d067b426efa482dce37bca3260072fbd

    SHA1

    42337b172088c36eb70321c1169f9f19413bface

    SHA256

    9d2ffea80565ef6199ad01b5417f2eab3f40046a81e735ca11378a4f35c72431

    SHA512

    c88a1cf6d869bccbcb9d9e329400a3464cb5abf7661bb90543daffc6f11a2d26b478e338b5710fd29a85ee3d26e7b407da9b468afe171bbda7bdd4a41f96fca7

  • F:\AUTORUN.INF

    Filesize

    145B

    MD5

    ca13857b2fd3895a39f09d9dde3cca97

    SHA1

    8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

    SHA256

    cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

    SHA512

    55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

  • F:\AutoRun.exe

    Filesize

    958KB

    MD5

    b6b8b4a3bc16c2f4b558ed1e4516c944

    SHA1

    9952e8cc06cc8509fa9b2b0d2708c46a7dcb5aa8

    SHA256

    8741ccbf5c4054699732d5414e86346a851aeecf954900a1c9bf614f11af4230

    SHA512

    0344cdf8cd666595a7fb16dee0bbf6dd80fd3e849d0bffaaa67b0ae43013598f920a1bd6916f05b56d07ab5a178c33606b488d03f91a3a611609bdf627a5d49b

  • \Windows\SysWOW64\HelpMe.exe

    Filesize

    957KB

    MD5

    129dfca94187120f825c592892e52f6c

    SHA1

    8dff7e86e0d128c2339f7dbdedab8f5609e34dab

    SHA256

    78f41d1ba212c04adfcf990c352036dc5f46a27779236b85d85c54b4398d6ce5

    SHA512

    b5db05cde57313476eaa21bd7876120db643d5866ab7c83d9b1c19a416c77e27451da318960a533a7874ac18128323e8b22bd8cb31d5be0de1c10319f32c0d82

  • memory/2576-228-0x0000000002AA0000-0x0000000002B17000-memory.dmp

    Filesize

    476KB

  • memory/2576-243-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/2576-4-0x0000000002AA0000-0x0000000002B17000-memory.dmp

    Filesize

    476KB

  • memory/2576-103-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/2576-296-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/2576-1-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB

  • memory/2576-344-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/2576-119-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB

  • memory/2576-356-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/2576-366-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/2576-336-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/2576-326-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/2576-254-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/2576-0-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/2576-264-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/2576-316-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/2576-276-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/2576-304-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/2576-286-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/3032-255-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/3032-287-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/3032-297-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/3032-277-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/3032-305-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/3032-265-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/3032-317-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/3032-245-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/3032-327-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/3032-244-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/3032-337-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/3032-110-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/3032-345-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/3032-13-0x0000000000320000-0x0000000000321000-memory.dmp

    Filesize

    4KB

  • memory/3032-357-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/3032-11-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/3032-367-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB