Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/03/2024, 12:45

General

  • Target
    cb71b02ee72249e19b8138e88f8466a5.exe
  • Size 970KB
  • Sample240315-pzdrbsaf63
  • SHA256 1f407116ee5e865a5614062da41ce2b58dcd7d10d996f97581a2cbc4dfe5de44
  • 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 3 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\cb71b02ee72249e19b8138e88f8466a5.exe
    "C:\Users\Admin\AppData\Local\Temp\cb71b02ee72249e19b8138e88f8466a5.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:3516
    • 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:2252

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 88fc10205f25063d0e98f4a568e4436b09bf8ba596f5ef8763d0f085e6bf96fd
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 a4228fe55033c7ca734704fa74870301634764e756c1d48704f617cb9ec23305
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 6ffea9df57ff60dc858b167b0892e1be65393533ae624ad548d24670146e4043
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 579e944eb508bae96669c0b26ad87b5b75a0a8d9beaeeadbd7911898b8cb7c0e
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 6b1139db5d5f85843e04263eb4b9c6b1657f4051ec0831628d4d4f8b505a9cfb
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 603e95498290fb43b4fac14ee25fddad222a53f9530470df05a9c6cd2962a564
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 7422bb2fe95ac205987c1d3c3f31762b6f4fdb985f3b563067d97452cd3b1c31
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 48ece867439f652537f444b76cb4cbe2013ec93d90808f31e4d6546afd4a7f41
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 f6e630a81950aacfa863502823f081571695002348f81b5efd3bef4dcd6ca9c7
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 c63fd6bafc30f113d670f9d6ab0c70e80fac3d3301eb543de05c1888d815a01a
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 cbf6278a81add47618590f7ff9533392b544d9060b6f6be26dafb13637dbb2a4
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 459c35570385cf9f456ed87d5ba9677e3ab13e4772ae2d56926d0c6427b1c41d
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 fa883793ee55d463a1d38fb231f2165f8520651ae29efa0cb2789cd73f383780
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 a6ad4e5717c315bd95fdf69ac5198bb76234f69c83d1c3a52540acb1b45fd517
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 41ac1ecb15f0e7ad6c35655c3f55f395631e6384ecdfc2ecd66b7336bfc5e13d
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 0e01adb87ba42ece603bb9f7da48d6f752d0f5d7d24506147ae9adafb8094869
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 a8e86f670777255ce2b5fb4e546b07666774c8913e69422bf4205c504337c83b
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 6574b48b121a949d4f0b8f598387d39d9bb7f8c5aa1e8c37cc93cf045973037c
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 f0c24f19c9676b4d87ae47fd40800a8c855e3e132e41338fe2c682eea05cfa0a
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 e323d43113eb858658789750e9cfc56865947f1c3bb0ef5de20f5e3cb70f4d09
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 cc03b5cf2058629606112e1c609e11bba11c20768cb73cab5b46098e6b301768
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 79aa45e43e89f92eaa7a47f97dbd8aa4078a99c3fb2e6d2b998d38c2d528f944
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 a55379ab05de8b56da324a9a9079a9dbd0c5f1a00a8766442ff775b4ab4b2b6b
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 56ad2456c695292b60ec422e71cc3b738daf5e931bc4719a4a369bbdac4b8dd8
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 e4900a2f294454e1003cd31ccf27f4cc8f3122235293076206ff48463ca16100
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 9ce0a2ffc19d36897953501d7daa6a46a202e0f600faf39fc951d644fb0f53b2
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 7fb2c0ae825817d41517e0161a0b4bb5c428ce7c8e469d73df0f229186f58f50
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 5e6db1e328d16b52ff09f8c7244f85745f82cf388ab498445f6daae3a5349389
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 d6c1a590492b3d0a476039fcf4c98ba4a2a33725aa28572156bc89bcfb03d1ea
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 d59ebffa2c2d8c3feba3b31838280739fb3f926955a68bf792e817666b4ecbd1
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 796ba0d7b2454efdef692c653123c975f5aa5bb239058ad815d8ac42517fc9a3
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 283d88f87daa651b1e80461a2f2dce42425c643eac4afbe26f07462ac3388e84
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 da72189f7365dedb7796948a2216ec2599b889134bfa18f35f6fa564d7262344
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 1e4013e6ab0cbb3c91f0382ff115b0cdbe91fbf982c2547a428180809a6f6020
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 fb263382831f688afa46b3ab567cf400d1dd7fc06d2521e154fc423a8befcc3a
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 ad318bc740c3e3033e7ccfb278d19db00de0b4bfaa5609e07603a43e13816034
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 8ee57b77e579f2767bc05dfe2bec80ce63dbb73e9f1685edc6b9a765c27bca34
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 4e9c109ad21b0abac3259ada90597ad74202d57508f735c52a80ff25617fcbbf
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 44b48ef862ba6ee4f739f0f63d02bec82ca294e97fcd4f41066e2a158d1a3392
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 ad949b6a6c436e8d5decc973cbbc7340bb99788eabaca9bcd36edddcf15ffcb2
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 80b844075863165f96f28f27b697d09cc998f5410d0497b5c3559c607b54170e
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 a5fe24bea41625a6210ca95192ce37c110a013dc5e2d031b7728ac898daff0f1
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 a39d1ddb00d8fd5c78e987ccbbd824e6ed7dd3baa53caacd716f1ece96699440
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 c9fb1df38044442354776904082bc11cb352ef49bea2163cb151971782dc6b4a
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 1812fd4bd07d00386e860d0711e90eb98914b35a612da86ac54b7dce43797ccf
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 21de53274cdab56b83c2192dfe53a73f40191dab5c90bf82398900a56d9baed0
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 8891e0b3da79ba2c04dbbc09b34004dbc606e593be6d77bec1a43351343f6a15
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 f4c4e1d553b010c2a6b4d45b4020508eab16d02615b2ca896f32c23f53879743
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 6fe8eeb1f99bd860fc3046ba8b4cb537efd586e24b173ecfcd81c6943b1fd862
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 65ce353aaca975661da23659e077972bfa7e8246d81df1751d851300dd86dedf
        • MD5 SHA1 SHA512

        HelpMe.exe

        • Path C:\Windows\SysWOW64\HelpMe.exe
        • Size 969KB
        • SHA256 a6d1e72ed010811b4694ab1f262d4ed4eb16f710eb9d14ac4d05f4796da90133
        • MD5 SHA1 SHA512 SSDEEP

        desktop.ini.exe

        • Path F:\$RECYCLE.BIN\S-1-5-21-983155329-280873152-1838004294-1000\desktop.ini.exe
        • Size 64KB
        • SHA256 fd91f32e28fcab74d0a905ff6c133f804407a6a978bd1f7ce2f7b63d8008e960
        • MD5 SHA1 SHA512 SSDEEP

        AUTORUN.INF

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

        AutoRun.exe

        • Path F:\AutoRun.exe
        • Size 970KB
        • SHA256 1f407116ee5e865a5614062da41ce2b58dcd7d10d996f97581a2cbc4dfe5de44
        • MD5 SHA1 SHA512 SSDEEP

        memory/2252-5-0x0000000000640000-0x0000000000641000-memory.dmp

        memory/3516-5887-0x00000000021E0000-0x00000000021E1000-memory.dmp

        memory/3516-0-0x00000000021E0000-0x00000000021E1000-memory.dmp