Analysis

  • max time kernel
    145s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    12-06-2024 13:50

General

  • Target

    a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe

  • Size

    1.1MB

  • MD5

    a0e2d36c6dc3a660509580a4c43cfd34

  • SHA1

    124d896477e98621ddcba0d75120016091fc866b

  • SHA256

    a1b7b3c80c80febd8d6b1358cba8492a540234215a2bfbe0dc7d49683e6fac44

  • SHA512

    ddcc10920dd7c2c90b1d0ec653158f324d74b70be9970d50283186bbadbfbb7b80876040cb32cc9db2ac70be54848058e196607a1ee522d7920771a63f681664

  • SSDEEP

    24576:KEtl9mRda1ISGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0NuJvb:BEs1lp1tRaMMMMM2MMMMMS5W/j

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Renames multiple (93) files with added filename extension

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops autorun.inf file 1 TTPs 2 IoCs

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

  • Drops file in System32 directory 6 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a0e2d36c6dc3a660509580a4c43cfd34_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2384
    • 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
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      PID:1680

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\$Recycle.Bin\S-1-5-21-2812790648-3157963462-487717889-1000\desktop.ini.exe

    Filesize

    901KB

    MD5

    fa19141673ee216aaf0da50afedbea14

    SHA1

    63e1a54989db59048168a1f2d29ece121836fd49

    SHA256

    289d4943e45d6271caec0f9f6fc2e38181a645e24a4048a06fb9bde0c9744ab1

    SHA512

    84ddf2fd3b16eb54e4dbf16a5f876070c152c628d1b43b0d702485514a0d3746de4dfbf1b2ea5112475c9ae1bbc064bfbdd707daac3fd1bc6061f1a671413856

  • C:\Program Files (x86)\Internet Explorer\iexplore.exe.exe

    Filesize

    1.8MB

    MD5

    d9b048fdefad444456d175cd6e55be2d

    SHA1

    6afb6560fbd9d3985ee8ba5ff98b87b55b9f8da2

    SHA256

    921d549f06b6e6a696873ff84517eea15254305fa3a0a7aaf8d1320ebba3982c

    SHA512

    da6c64b6f1cfe4358ffab69ee52b2e95ab82545e0eee46e6a620763263eff779089b9ada7b9f4fdbe4332651b43800d0223a51fd8ad0277f78dbe3d41b14037f

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

    Filesize

    950B

    MD5

    26717fccee3ef2eb47a48dfdba879cf6

    SHA1

    f72edbad5ae0b7a5b4dbffd42bb03d8aa6e26304

    SHA256

    8cf692e99520e2b19e8d57207d3075881dad46fdf7da4146af16145ae63173d2

    SHA512

    e08ba9422b42c74e8514c1e73ae37979ee4f3fe436ef8bc6622c0599565658093437647e6656485ce1b9d4a11e53485e54758f5f35e036a3c18972d0f1a4713e

  • C:\Windows\SysWOW64\notepad.exe.exe

    MD5

    d41d8cd98f00b204e9800998ecf8427e

    SHA1

    da39a3ee5e6b4b0d3255bfef95601890afd80709

    SHA256

    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

    SHA512

    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

  • F:\AUTORUN.INF

    Filesize

    145B

    MD5

    ca13857b2fd3895a39f09d9dde3cca97

    SHA1

    8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

    SHA256

    cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

    SHA512

    55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

  • \Windows\SysWOW64\HelpMe.exe

    Filesize

    901KB

    MD5

    96c6cd4e81790949780f17a02975e2d0

    SHA1

    c8090a2cc130d772dbf88f6f1bc3bd19eba5a2ec

    SHA256

    0b09876b0b50fb10766ad32c2c13bac101f59c58c347a80459ef8aff86e84aa2

    SHA512

    664cd14591a39635661f1b16e11ef0f98f6430e689ac1e2e3ff057c8706512f7cf6ac6137c7b074cfaeacce3a162c797b1845cfc90ffd3777c1127af49ce5abd

  • memory/1680-13-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB

  • memory/1680-11-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1680-249-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2384-4-0x0000000000700000-0x0000000000778000-memory.dmp

    Filesize

    480KB

  • memory/2384-26-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2384-0-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2384-2-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB