Analysis

  • max time kernel
    152s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/02/2024, 20:12

General

  • Target
    acbf4096bfa21862f00e9a20ab855596.exe
  • Size 291KB
  • Sample240228-yyweescf7z
  • SHA256 2aca8228ee3f8641d4d2dadd4c1ec2fbf139d828bfbf6f0a2f6ef0bd5e2915a8
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Renames multiple (5589) 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\acbf4096bfa21862f00e9a20ab855596.exe
    "C:\Users\Admin\AppData\Local\Temp\acbf4096bfa21862f00e9a20ab855596.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:2604
    • 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:5084

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        desktop.ini.exe

        • Path C:\$Recycle.Bin\S-1-5-21-2727153400-192325109-1870347593-1000\desktop.ini.exe
        • Size 292KB
        • SHA256 d5b465cbadd48aca30fb95f006f26f065e2de4a170d5f206235626af8326ffdf
        • MD5 SHA1 SHA512 SSDEEP

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 2f10bb71df9351257279723941f170ba0ed54daa5e2eea9c55ea511f35c4b52e
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 a03f990826482449458b661d9edd0b50be914b4582e88e9fcc9c997dd795b209
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 28520bd7ce9b7d5eac582ca15e8830b0937de95d902e63adc57130a3cf4c51e4
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 638576cb961713b7bc53f1e05a8ce00b0d5380de268aafd2069620d5e4b00c90
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 505974cda47a50e1de7a906d7fe4e395aeb8ef52d996aa7889887cccb3626c72
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 1861cd6fa33b45d99836a3a19794fa183058be25bfea9c4d59ad1c1bfca90a47
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 ebe160a680e650b65eff06d48d6d53d08e07817cccf5458aaee42bafc74d9a32
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 eeab99e426f8422bd5eb7e3ed0305dcdfb299607e139e2838c3263a871610065
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 6c7cb5aada922e892f957e929e7258da8e258768db9db907db3d2ae714fd45d4
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 648c552fc1ee02af36a0ee40322b8633b96a47cfaeb81fd53fa45e0374c554f4
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 e4af4de703ecae22aaf69fd963998e5b6de35f3e2668c8af025ddc8129858a9b
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 49132825d8a19f51af1446a4e091aee8dfcfadf58757c17d5ff4f5446bdaafef
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 41569fd23754a50e3c37c750c1df1dd50dddd0562b7ae138904923d3b92fd6e4
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 623d738a7656fe4ed5f537909a86bb91ea81712f0ab9e0148e47a66066e709a4
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 b3aa3fc621d9082935b056c388a55e4e27ddf93979b5cd331b43ae9cdac35655
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 ab36aa960a03f8f004deacf17f734cf4a306dcb1d6f87b6511a6050dd4aba62a
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 a4c504da5130fc827af578b2f676bb5691461d00c73c011805b5ee229f042b1f
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 71a0b47890c8478a397d79a25a94cb1c542e450aeab4f683962d4f3f61675df9
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 61873073f6f08e056efbaeaf7f0247c9672d8d77bf6a3207a2be8a8ee558696f
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 072fdab5efec17974e583bda10970fabd36e00e21fb4d754bad1b0f7830f95ea
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 9601e18d637f00f7d5090ef4f73bf77792df8388e7ddf053930cb37221c034a9
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 b2479fc17c7a5b5fef17fcbde8b74fd01ba6abfc4c32db7f2d4b4dbe81c71123
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 ee2f218080779a4d6542db8cfae360d56a326e9237aebc10852c487fe507b70d
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 3da9cf0a41286a73f5b8ea196a7e5d94f8478c8e884fb85f0e168e8805348445
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 070e666729154b731b1ef8297fa7d44903d1ce6865d71c03d398fff66be8bc0f
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 e6bb71053654674fcaef8a1420e491ae0800b77568591a5fb42f3472f2d6bb02
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 7440c58dfccb90ed4bf440c129d19c33076892551fbeda4d08691fd5fec3de0e
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 090d162fa2061a577de8e0684aefcc6bf781e100536aba3b4dad4c5cc29f3597
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 ccea75460946317761008b94c842c63493840e73beae60b4886cb1bf21d92994
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 46c6b728d4b095b73ef27c3f5712d228c997d4d17751e343665bd08e5b5fc5a7
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 d775d4a378aa9f2157225e85168a6d77cbe102708f25ad33dd818513f4a4eebb
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 5dd71dba3498742917c202399531cc80f0b72fff9eaf26f9e4151f7bdcddf155
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 e4ce071ea9d7e2936e3460c4a563b6fe76d96775bb3e3892b7ef37bc5afa6ba8
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 4c935f162e33c83f13acf8c10360ce7a26edbdb0f1bccf403c77ca6c3e908ef9
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 12f7087c0278e5c2ea4d6452b1cf18a8c20d3751e03e1e9465deef98403ec98b
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 ed366097eff98b6ac6f59987877c07304944802c2d494c36bdb737fa302486e1
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 2412ba56d1f8c218db0e7a4d434b2658b44e3b88783c2ca86f2e21e8a4734256
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 78bc1291aed74a406ad54f914e420dd63c72fa2f112b8a77066d488208548d9b
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 c4c2b8bb1f8d8cbf155c45a867b45ae3566b909688c49e1361184d30011531cc
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 83aea8811a9f313be5507cd9ab22ccdd4deffe96e8a233ee86bb7ffb1ffbb5bf
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 7fe7ce9d3c8a33bbdc5330c2084bab66c8fa7ce7db65610b74ae336458562528
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 359c5f8ecdcf0dc35ce89ad76051d86920541734e7fcf44c50fc8df72cff0214
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 54f53566c08ede01538d270db3c46decb2bac73dbf42bef6d7c4c7a7a2b0d255
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 01c1cc2689de5b9cb2ada041b5b4f73da929d8a8393e7b5952e86acfa013b47a
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 53eafd7cd909adea9bd716d43822c68725afd946052eb1549bb8344e1f417da3
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 51d8f357bfd566cea5935b4a02b1d4f524ea3c3e0be9059a458105d952e3b795
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 420fb3694b1bf898f5a760aa268b1e371acdd18b670fc62fb03345d12fb87e5c
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 26f756bbb958a7686f77fcb7185e60032312b3cdc16728cc32ad0020906b8f6e
        • MD5 SHA1 SHA512

        HelpMe.exe

        • Path C:\Windows\SysWOW64\HelpMe.exe
        • Size 290KB
        • SHA256 25bfa8111813d173e53254a2ac4c72a4c609957f14393d0d1cc18da0ad76c184
        • MD5 SHA1 SHA512 SSDEEP

        desktop.ini.exe

        • Path F:\$RECYCLE.BIN\S-1-5-21-2727153400-192325109-1870347593-1000\desktop.ini.exe
        • Size 292KB
        • SHA256 142828478108a9e088b16482839f52ede361df99c83bb8bf872df0664af3404c
        • MD5 SHA1 SHA512 SSDEEP

        AUTORUN.INF

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

        AutoRun.exe

        • Path F:\AutoRun.exe
        • Size 291KB
        • SHA256 2aca8228ee3f8641d4d2dadd4c1ec2fbf139d828bfbf6f0a2f6ef0bd5e2915a8
        • MD5 SHA1 SHA512 SSDEEP

        memory/2604-0-0x0000000000770000-0x0000000000771000-memory.dmp

        memory/2604-2341-0x0000000000770000-0x0000000000771000-memory.dmp

        memory/5084-2685-0x0000000000650000-0x0000000000651000-memory.dmp

        memory/5084-5-0x0000000000650000-0x0000000000651000-memory.dmp