Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/03/2024, 10:47

General

  • Target
    c06680da5d5efca67aa326f7ef8e07ec.exe
  • Size 1.4MB
  • Sample240311-mvsctaac5t
  • SHA256 999ad5c7095edd2beb4f033c34f42a4042220a3243594d9d2813d26646482c37
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Renames multiple (4722) files with added filename extension

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

  • ASPack v2.12-2.42 4 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Drops startup file 3 IoCs
  • Executes dropped EXE 1 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
  • 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\c06680da5d5efca67aa326f7ef8e07ec.exe
    "C:\Users\Admin\AppData\Local\Temp\c06680da5d5efca67aa326f7ef8e07ec.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops startup file
    • Enumerates connected drives
    • Drops autorun.inf file
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:776
    • 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:4864

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        desktop.ini.exe

        • Path C:\$Recycle.Bin\S-1-5-21-609813121-2907144057-1731107329-1000\desktop.ini.exe
        • Size 1.4MB
        • SHA256 6b15d415e35e9c658c05cceea18338f183c8c063199b17d2a73a85f63cf12c44
        • MD5 SHA1 SHA512 SSDEEP

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 21af3e3bfbd68ba4f0e42e5fd65a9dc3aba570e2660bb0f481095768164c7029
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 a1931c6971494a6791811df91f9ddb2a977234897e3aef77d7d52b449ec0f20b
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 8c6c96e0ba28d57e9b5b0c45bf27c473cc25a69fa520f3160f8f6334b144feff
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 bb8b1af6886e59b4e93a2db9116e9d654779e361caa4b2951137292d026c5ddd
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 3286b49fe8a88c39b1d58c1f7841a88b1a47e55fd7b99892204555b3adbc231e
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 1e3175cf6a397e594f470e48a6b06677e87b32e5af850b8de0309eb31b7c7650
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 10213cff68bc53bb293f123db02b585d246cf7d95838fd55c64f541f3cdfdefc
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 45d85b5a1243c1e79de44fbfa061231350bedbcbe9774ff61efc3fa390441cd5
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 31412bbe2b7506d0a5a65eebbefef42834fd94dfd6583078ebc1399037c332fc
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 ebf1915640aed717fad9a771dc8fd3a1f96fca260829aa37249bbfa5bc4eae22
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 5a62b6a92c3bf9040772ae0bfebdc34d5f5aed26f28acde02d5b70d2d83a9b88
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 ef1353cf12801df42499380b3ca95054f9a6e0446840f1a901d6fdb6a8488d6c
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 f715858d96399dee902e8f7a0968cdd90c2ec08c52bc244db7354ed2d8466f4a
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 a631a1a93bf97a73866da8fdaea7019a59a7539e69d76c2060420b376c6d82d0
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 a4a80663ed7c0ef7c5152c9eb910f18ce04133d1204323e5cb6c2ba478739669
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 b21b359ed86da52e5f63aa320337c7cfa8399cf8ee4e5d41d02b7e0c4b754e82
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 436b0dc6f73090a03aedbf6b365c1583b74931f8fb3a4070c3549f8ed3617986
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 88ac6956ea452077d5ba39c2e3d2d877759661b1dfb259334c5d0c4873c7f57c
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 2d12870fae8256a3366cc983f28dfd79580b2773c45e1b4766c398fee928d3d1
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 9d9621705b613846e0bc7d2f2d73105391ebc7b9cd7738d34cb10b1d6a237b7e
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 93494cd3fd9eed88997f4ad6426a108a7553068af126caaf142157eaf1c6d951
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 d0d3d5f738ea389db10c1060dbd3120eed3948b285a61214be6625060d0bae53
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 62dd2161bc12073319784e9942752f6f136ed712e203d0ec113bb76c1e26c4f3
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 003779fb47392ceee6259d629ffe3fee82d8b8b79f60971c8740a6a02ff8644a
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 6a7db636b94275b8b092e568fa9ef927e43a0824ecf58f0e66c5119775ba3bbd
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 f84fd1d7c803e76068eb417b37b8e809412ea5f8ef8025bd22e022ca2d5e25cb
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 1bfa92a6182a08797b2cc01ef260f77832227cf8545e45f94f62b0084b8ad71e
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 7a839a7db6c7159bee741c0ed1d3fea6a0d54a8f781a5a78b33e98be083d1f65
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 37e2815a1015764e578ac437c1624981c3cbbd29aff4e991d48c4b82cf53327a
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 ba6fc9625a574987f2dff09961690d6a4458853d8c545ed8cccda2edeb3906d7
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 6721074b10edf460962c364cc9eeabf8ca683516a0cae83f976b9054c89b6ef2
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 0528160557022e0025be7ff79d8a32a01582e7882c43215a717afb54bb120617
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 3b35794366fcec960bb68afd6f0888bd562a31ff34c5fea2861e861ef5164543
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 58da00ba3b4f7fe7bb8a9f120c18dbb815fe569e14e9baacb00866dc74b210b7
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 7e6120597684ffd56f4b73c560c1660f214861e686abdc787a064ff543e1361c
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 ce43d58aeceb03617c2e7f52f5510df98bb7adc901dd32835ffa351583f9c4dc
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 3caf0a9818d7b3827515f7b7a13f824065185f2eebf3b207f90abfaf24f922ff
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 1878cda3e0b8b478b7e8c9195550ebbc53eeee01ed7c2afc4c22f48fec5dc351
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 699f3d7c669dea23be81f6c4c4f96dba38b9ccc3684ce457468940c7acc4ee27
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 4ea02adfb78641b18ffeb062acf73fe84af930b4b504c513bdbfba79c7910cca
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 1c010ad96523cb28d99a9b4100b98e25187b7d62975b1d3132ca37e422189631
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 b1d6802a41617f3a81773262978415ce15c18981571dcd80d57a3125d8d154ca
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 d2883f170bbefeae6b448372c8e3d9f9f4dca1427c6061ad19684ebaf59b5a4e
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 63693cde4086fe9424775a89bb790f39ecd740e8cefec3d861e839b7ed63a140
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 8753a0a310a35a8bdf2c53e5e8438d982e904adf8b273d78a8b38fc7d17be6cb
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 0a1cd4b11413421b6f4a8b5eecc0f9a139b5c35c9efb44c3700709e2b199e21d
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 c40cac5777f6563934f3da6f92c73c94cefb1f16b28c8929967a15de2f4d3d18
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 bf026152a6a08f09b60a467d70a632f2ae06ce41d456a69f2dddba1a98e5d27a
        • MD5 SHA1 SHA512

        HelpMe.exe

        • Path C:\Windows\SysWOW64\HelpMe.exe
        • Size 929KB
        • SHA256 4df3a0c437a3e4771b61ff3c685315b5a93ad9cd0d672a925a52e05e468bb1ef
        • MD5 SHA1 SHA512 SSDEEP

        desktop.ini.exe

        • Path F:\$RECYCLE.BIN\S-1-5-21-609813121-2907144057-1731107329-1000\desktop.ini.exe
        • Size 1.4MB
        • SHA256 a26293925a82e6c60fd448bc2a58eae6cdb3a938d156d1c9a329dfcb80c092aa
        • MD5 SHA1 SHA512 SSDEEP

        AUTORUN.INF

        • Path F:\AUTORUN.INF
        • Size 145B
        • SHA256 cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae
        • MD5 SHA1 SHA512

        AutoRun.exe

        • Path F:\AutoRun.exe
        • Size 1.4MB
        • SHA256 999ad5c7095edd2beb4f033c34f42a4042220a3243594d9d2813d26646482c37
        • MD5 SHA1 SHA512 SSDEEP

        memory/776-369-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/776-3181-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/776-5800-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/776-1051-0x00000000005B0000-0x00000000005B1000-memory.dmp

        memory/776-5109-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/776-6851-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/776-9733-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/776-1881-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/776-4535-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/776-897-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/776-3849-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/776-7855-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/776-2637-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/776-0-0x00000000005B0000-0x00000000005B1000-memory.dmp

        memory/776-9075-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/776-8265-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/4864-3182-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/4864-7856-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/4864-8266-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/4864-5-0x0000000000610000-0x0000000000611000-memory.dmp

        memory/4864-372-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/4864-1422-0x0000000000610000-0x0000000000611000-memory.dmp

        memory/4864-2646-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/4864-5801-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/4864-9082-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/4864-3850-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/4864-1882-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/4864-6864-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/4864-1040-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/4864-4536-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/4864-9734-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/4864-5110-0x0000000000400000-0x0000000000478000-memory.dmp