Analysis

  • max time kernel
    145s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    26-04-2024 09:48

General

  • Target

    0080f4f876df137ae6a99b4010f8263c_JaffaCakes118.exe

  • Size

    1.1MB

  • MD5

    0080f4f876df137ae6a99b4010f8263c

  • SHA1

    f6e1ec9bd526ab29aee0c6eeaad0c81e17c57dc4

  • SHA256

    7296cc207ff20f5a007347123e5cb25613357d1f6ad9dbcad6afc4eeaaf0180f

  • SHA512

    77b85827d1d5cdc0d4e6cec4384a7c3402ba8d332d668b12e3dc2be3ac0a3286893e33355b98f96e765810d3e79db04a7b0910579d2971887177cd1688a10eb5

  • SSDEEP

    24576:FEtl9mRda1bwSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0NuJO:+Es1RMRd

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 4 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0080f4f876df137ae6a99b4010f8263c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0080f4f876df137ae6a99b4010f8263c_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:2816
    • 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:2064

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

    1.1MB

    MD5

    4aa77902b316908d061346dccff616b7

    SHA1

    0c2bd762bfde6e29a69e8add826cf8097a2ccfc1

    SHA256

    138c99ee8dc4548e563b42cdc3743facbee7b371c91f90b97b98b567c0b37fd1

    SHA512

    7499005f67c0cd479b4271896ed14e93936b1d9dc51d837e9011da60a5dc6cc289f521d071aa209079bc9aa2cfd6ee27e6e1c059ea6a3bc5342b25092529a72c

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

    Filesize

    1KB

    MD5

    e85abda9828939d6cc6ef07856e1a210

    SHA1

    92a66626cbf66104b2ba7243a52482a8cc9e5872

    SHA256

    1612cb24b1778ab9b04c46bd98c22335fece361a9b1b192ded66f3c33c98b981

    SHA512

    3e0b91d7e3f5523eb61ad04dd1a1086be5de38d8277cd786bd09939a1f323d4f6da8862855e4cd3c534b7d3180318575d145e6ce5545eb508d0bd8646424cbaf

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

    Filesize

    950B

    MD5

    bd723f8e5fe8b77f9d97fc2d8c68214b

    SHA1

    6d76969b94079d71914bab80ea00a795f70b0da5

    SHA256

    675cfdee3503f801b039f116501100baa8893d74f284d7a34eead8f51471fb9b

    SHA512

    a319a9bcba48b764b2823611ff272f8206eff8cebd58c028d6a52dae6bb7b84215ac1e00d9a16f0768712f7fd7580f25fb74b9564747e3f6eeb3e48c4a25fd79

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

    MD5

    d41d8cd98f00b204e9800998ecf8427e

    SHA1

    da39a3ee5e6b4b0d3255bfef95601890afd80709

    SHA256

    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

    SHA512

    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

  • F:\AUTORUN.INF

    Filesize

    145B

    MD5

    ca13857b2fd3895a39f09d9dde3cca97

    SHA1

    8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

    SHA256

    cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

    SHA512

    55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

  • F:\AutoRun.exe

    Filesize

    1.1MB

    MD5

    0080f4f876df137ae6a99b4010f8263c

    SHA1

    f6e1ec9bd526ab29aee0c6eeaad0c81e17c57dc4

    SHA256

    7296cc207ff20f5a007347123e5cb25613357d1f6ad9dbcad6afc4eeaaf0180f

    SHA512

    77b85827d1d5cdc0d4e6cec4384a7c3402ba8d332d668b12e3dc2be3ac0a3286893e33355b98f96e765810d3e79db04a7b0910579d2971887177cd1688a10eb5

  • \Windows\SysWOW64\HelpMe.exe

    Filesize

    890KB

    MD5

    35cb4a40f6a3c75f466029394197b95d

    SHA1

    d61072794af434389db055e82118a97f9b9a2c10

    SHA256

    fce4719478a81df82bcefe1b18423bce81729b44bfe90d5075f291a00ccc1904

    SHA512

    7eedafdc4b72da92e943beefc3123e66d55a577c879a6521df254313a8a50ee238ae82e5f9d233c948438dffee3655ec9aa6ace21a7311226d18ccbf21785dfd

  • memory/2064-15-0x00000000001B0000-0x00000000001B1000-memory.dmp

    Filesize

    4KB

  • memory/2064-11-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2064-245-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2816-0-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2816-4-0x0000000000350000-0x00000000003C8000-memory.dmp

    Filesize

    480KB

  • memory/2816-2-0x0000000000300000-0x0000000000301000-memory.dmp

    Filesize

    4KB

  • memory/2816-235-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2816-244-0x0000000000350000-0x00000000003C8000-memory.dmp

    Filesize

    480KB