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Analysis

  • max time kernel
    145s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    09/05/2024, 06:43

General

  • Target

    28c423a0fa0a5094ff5f7054ef3b0ed2_JaffaCakes118.exe

  • Size

    783KB

  • MD5

    28c423a0fa0a5094ff5f7054ef3b0ed2

  • SHA1

    a9ad4e7f3da9004b98dcd264d444c07eb58a3067

  • SHA256

    7e862226f685439f0e33ebfd42a08e3f68298fd3ca4a29006be3401a09737124

  • SHA512

    bacebef1231ffd1db387995935c9ef86894c61cea37e87743bcbab2553edb4f0b578941e2cc0a32bbfd9ff391212720b370b59e1438bfa04dd26c096c161af10

  • SSDEEP

    24576:ZMMpXS0hN0V0HoSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0NP:Kwi0L0qlJ8Z

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\28c423a0fa0a5094ff5f7054ef3b0ed2_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\28c423a0fa0a5094ff5f7054ef3b0ed2_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:1740
    • 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:2448

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\$Recycle.Bin\S-1-5-21-481678230-3773327859-3495911762-1000\desktop.ini.exe

    Filesize

    784KB

    MD5

    b2fb07b9b3534172487ed8786eb36c83

    SHA1

    b0a67976d70ed81b05732c4300b525dd32293589

    SHA256

    69f237d60f0be8e5e3cd20b8a19beee79e34c48b39e4e10311f2d720d6885609

    SHA512

    999dc99e4d204d5a1f8e060259efe8db00e0b26109b915ba17ed45fa9dfed2c1c4ba0fe9cf50f5e791720df5d40ba60fee79bd86126da545079351793cc4f2c0

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

    Filesize

    1KB

    MD5

    bcd2938f4928ab325ddbbe0f060c6f51

    SHA1

    5e0b0442ef8566ea592707d61a9e14a658d6ccda

    SHA256

    ca6b6419a4c431dee09377ad928bba069b76638b18857dc089d921f076b3f0c0

    SHA512

    2541df4f89a1bafacff2f4a5699741c7d6c6bbd10e4a6cf2cbde8521851cb143a590df67b9decc57733e7b5587298e02380ee57572a7b5cdc929debbfa7cc278

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

    Filesize

    950B

    MD5

    0b22d652bcc2f65181c902dba814a98b

    SHA1

    0550413a7855f6232b1a7524964b220af660d8fd

    SHA256

    046a07c24e5605e63d1f67049962fe5f41b43180e523228b9e93d87bbec6a74c

    SHA512

    9b22861155e379429b0ad57c0b244b4e737a3924dc1ed2aebc39e22292a9d09c34596f543c656cf4298c52437a6cd81a11c47ebd91185ef6807b722e0deee5cc

  • F:\AUTORUN.INF

    Filesize

    145B

    MD5

    ca13857b2fd3895a39f09d9dde3cca97

    SHA1

    8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

    SHA256

    cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

    SHA512

    55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

  • F:\AutoRun.exe

    Filesize

    783KB

    MD5

    28c423a0fa0a5094ff5f7054ef3b0ed2

    SHA1

    a9ad4e7f3da9004b98dcd264d444c07eb58a3067

    SHA256

    7e862226f685439f0e33ebfd42a08e3f68298fd3ca4a29006be3401a09737124

    SHA512

    bacebef1231ffd1db387995935c9ef86894c61cea37e87743bcbab2553edb4f0b578941e2cc0a32bbfd9ff391212720b370b59e1438bfa04dd26c096c161af10

  • \Windows\SysWOW64\HelpMe.exe

    Filesize

    782KB

    MD5

    5db8318f4243e393c6766c868f25099a

    SHA1

    857fe7a985036964f7ec0a2eff98b214c0c8195e

    SHA256

    2f0f1efbfb69aa0da870c175aa7ca1aface944a7f02f8cd613b1256305dbaf18

    SHA512

    2b0b55b88b5a591289fac86135ecc83fa3cdb48169d107316e4a3af51e8dc2177d1917704737b1411d5ca83e7ef304cbc52d16b66b8bb1b3d62143d7bde91e3a

  • memory/1740-320-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1740-326-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1740-228-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1740-360-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1740-238-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1740-350-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1740-248-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1740-340-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1740-260-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1740-0-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/1740-270-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1740-310-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1740-280-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1740-300-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1740-290-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2448-321-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2448-341-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2448-301-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2448-271-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2448-311-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2448-261-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2448-281-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2448-327-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2448-291-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2448-249-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2448-10-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2448-239-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2448-351-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2448-229-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2448-361-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB