Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/03/2024, 13:34

General

  • Target
    b78600db205939bde1fe9a9803ee812e.exe
  • Size 705KB
  • Sample240306-qt8vysda75
  • SHA256 659019d299c42288aefcdd1d67ff9f27d5e9e14e7eed05b0dd1fee9b56261415
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Renames multiple (5574) files with added filename extension

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

  • ASPack v2.12-2.42 5 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\b78600db205939bde1fe9a9803ee812e.exe
    "C:\Users\Admin\AppData\Local\Temp\b78600db205939bde1fe9a9803ee812e.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:1300
    • 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:3292

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        desktop.ini.exe

        • Path C:\$Recycle.Bin\S-1-5-21-3270530367-132075249-2153716227-1000\desktop.ini.exe
        • Size 706KB
        • SHA256 074cf4fb776f977ae8dc9229a8c33a1e0b9ef43017d987244446465f9e227d64
        • MD5 SHA1 SHA512 SSDEEP

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 494a77c5da1b8a6f36caa75fe2dcdb695d27cf7b98ea9114e58ded1241d3bf78
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 9a9bd4d1ad0e1f0762fb10617a6e4536efc4ef566ac0650ed9d6572aa01243fe
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 0770285301052bd820c0e170037fd81f02a2bbafde9631901905d349a1417d7d
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 1eee95c52fffb87de1c14f22a083f0234a9a31e5287bcd1d5e2a372f3ebb115c
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 a7b4d0b3ebca18f09ddacbc32dad13ea98c6d5f3b23566679c50192aaf45a25e
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 ff4ef8fcef97d5c3c9302f57ca9a0c29f02486f9f9f30d262984042522ae3eab
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 6f2fe570f29f9feaf1e8063b0299281ceda4c63adeff629a2f227b0ab4a3ce89
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 cda3de54cd7892f7c967a0fe8789c3acecc1e01746bd08f7ee4511ef0230e2c5
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 051f2664e66b684335e3447dc215fae8055bc6a898134cd41b9625aedf836b05
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 6d0b280092648afd1fa0393e6d306d0e9280604c729fd151a391a48871deca4e
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 d35a9310b2b43d32c657e3d06b0a56808217f21b33de0e43ae8dc749c1408216
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 1b7e9903b8da03868a8004d08a08c19c554be78134cbb0997c2a9eb1daa8c90c
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 40dd3fd3bf1663b61d4a6756818a7e686b4d26528a71428f0f98af13abe3bef3
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 f7d40a82164c9a9dfa0d4a2fe033da3c9639961210d480350c8a48cb023f44be
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 c6d6d4ad5d0d343841463b553fa4d44fa4671a6c817cc3a53d6ba62c68ce6612
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 bf119afe93b802d25e747b8d328d2ae041b68ad6ba10cc308efd962c0fdfebdf
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 54a10ea80bb3795241567ee2067a1514d9446497e8966f6b9ff2eae61b9c798e
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 0f7bad61af321cf14dd94745c60fb33d83ea5c13c69d15a9c8dadd983c9da037
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 98426b16b991a10e77e20e050e0187a3ed403fd8b83f4c4c925ccf763eba380e
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 d87dda79d776056444278e74b7d406721daf08b07e9d46279f5c30001750fc15
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 2e356c5b4a876ea6b0e02fe62a65a41f6376e1729ec0e6af922b6e2bc546fe87
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 00bd8aca37d46edef3ce98d1618d48b6ce9b8ecb3612e3fe509803bb8f69c12a
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 0acc52799366e2be0f5a5f38ce03494895657fac2bade8089b953dc923dde9f2
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 cd4764024720d15b414759cb5eb651e19b50c726948c7bf001222c1ba9465961
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 033e8b06917a353a35d549eb73d74c3d1f446ecf45f17aa4dfad34e39719cb7c
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 ed07acefea470c3821b1a27d7c0a90124fe765b02c2a87df71813bf1013042fc
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 ba65d15f3573502cf1393ef4a8e7bdc3a0e8be2309da660df7fa6920ced7a23c
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 78d5f413f3880458182c1c4d0e105abd8152275b9a9829dec880275ccfbaffae
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 28b6d10d0bb05c7a163becf5bbed67fb15948509d2e22846a03e78d86691deae
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 a9aa05ffc087c0d51e075946c7c468f3fd433557608b05a6a851de571827c44c
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 ce4df55df01b82cb22645aa13a3512010c72d7b6194c27a3113f3835e228a0aa
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 20de5d3a2a091d01d9e0a4e8b408274a6da40feb837deaf833d5444fba4ddc6e
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 b456fa236804aa7d1c0e1673e491eac7e73758cfa01bdc20e22866bae4bad260
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 990fb67450b08ca66741e1c47e4bd9422ab8b4edc89e2b3b87eff5c68b8655ff
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 f55b6421661db17743b7559251d833b3d0200f92c539a493e02785e54d3f43dd
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 ff0e9da203935a698b39a95c108e13350e80e7c33d89156f0c2c19aa02f6699c
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 eb48300260fef9a69a03efd168800e5a2590a5d6c65fda341b9b668acc71e0d1
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 c502bd8fbbe5956496575392342cb7f9e6951a218c967e80358ef4c1dedb6435
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 17090b002eb9a51fd95291a701109e49abc025d5c9ab9c653da0f6851ca72ee4
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 ae2caf3df90efda9750cf6bf91c2a394fb8d3089da0539a9272bf3181d0dff0e
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 cd99f0c83d8e2040eee65ab95d0fcd9971c8cc27294503e2692c5d21ec15d4c2
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 8e5f2068f475a3b27ef8d7497e6bc2ed4cf5eb5b56b2745ff971101feb659a6d
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 9ece36115cd6ec27587e0b0062db21bd2263e3f4e0b62c58df5ba29bfa612798
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 74283bf2a6a3dd00eac283a8d40f230e1b2295034b2eeb436b252d6cfd36268c
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 f84302d31cd82216dcbc057c202cfb9490691b04ac63594fde39c299837e3ca6
        • MD5 SHA1 SHA512

        HelpMe.exe

        • Path C:\Windows\SysWOW64\HelpMe.exe
        • Size 517KB
        • SHA256 1dbc69661f4772fbca6668121e1f0ff6114c7cd231cf88c2486fec31b6f415be
        • MD5 SHA1 SHA512 SSDEEP

        HelpMe.exe

        • Path C:\Windows\SysWOW64\HelpMe.exe
        • Size 677KB
        • SHA256 6971625590d51608f2ce64848005f4c15d20cbb92a3f335844680a40e70a8d6b
        • MD5 SHA1 SHA512 SSDEEP

        desktop.ini.exe

        • Path F:\$RECYCLE.BIN\S-1-5-21-3270530367-132075249-2153716227-1000\desktop.ini.exe
        • Size 706KB
        • SHA256 6e7dcb8b5c2256e9fba68a4306bc998c334112366ad2e51852c3324aab4614cd
        • MD5 SHA1 SHA512 SSDEEP

        AUTORUN.INF

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

        AutoRun.exe

        • Path F:\AutoRun.exe
        • Size 705KB
        • SHA256 659019d299c42288aefcdd1d67ff9f27d5e9e14e7eed05b0dd1fee9b56261415
        • MD5 SHA1 SHA512 SSDEEP

        memory/1300-0-0x0000000002210000-0x0000000002211000-memory.dmp

        memory/1300-7937-0x0000000002210000-0x0000000002211000-memory.dmp

        memory/3292-5-0x0000000000530000-0x0000000000531000-memory.dmp