Analysis

  • max time kernel
    150s
  • max time network
    145s
  • 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, 22:39

General

  • Target
    ad0a291d7337221f412af0f32f7403ea.exe
  • Size 293KB
  • Sample240228-2k5bysfe9t
  • SHA256 8db8d8e5e0d5835754875ba1d7b048772a018af991a277a18d92d538b4a3e7c2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Renames multiple (4560) 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\ad0a291d7337221f412af0f32f7403ea.exe
    "C:\Users\Admin\AppData\Local\Temp\ad0a291d7337221f412af0f32f7403ea.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:2924
    • 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:2984
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4104 --field-trial-handle=2284,i,2771196087253062161,8107167670425198948,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3504

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          desktop.ini.exe

          • Path C:\$Recycle.Bin\S-1-5-21-1904519900-954640453-4250331663-1000\desktop.ini.exe
          • Size 293KB
          • SHA256 21e0657206b426950ec7807047a3b8e77965ad46481025fffb5fe1bee8d5716d
          • MD5 SHA1 SHA512 SSDEEP

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 561e15f7203ab42081661a4984e66b6194e99bef49dfe45fe62f58205967fbee
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 aea387416745685d8f1e2be29895a99ea08bea4de2aab640e38c89cb346b21c4
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 a8e4c31990a6567ecf39d97e7b39c2a916eda71d93902f9e1ecad3fc7eb4c219
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 ecede91236a45ba1ea027fc429307dd0620a5d94a81615c5fe419787e687c6ff
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 8ee35c0817bd805d6238059af7f0d8c05db770a1f76a84ea45037582032cdc18
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 53b54e0385aa6e11f2e70d4d1921bdaad1850db7f85a2e2693b9a374d9a9aa3e
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 9fe2947a81a8736af929fc79e07138631cd159011404802ef269ba8b9b3d9445
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 51dfa53b5d42fc7d95fce3545c1d9146f4bd8bfba48fdc4fd099ba4a2a8f7652
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 465410ccc4dd5d64ae180b8e587b932e88c85e98c0ac8dba798c6f79d5422743
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 ba9bc01b5072cdd5096e501a3ec2ce0945dcb665b27caef74e2d279ae96a7162
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 f3bab1ca1afb6f106a23fa198f744cc952eca18dc1bda4b6bdec0f97cdcdda4f
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 9b0f092a7bb0b21488adc46b46e5bdb9a0d12c5e26f99e63d207f2e31664b382
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 f6ad8a3783a790f4408bba4f293a589b4730556a0465bc2cb957df430d7ee8de
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 8de8bd0d6d9ec18804613c8ee469353bff382a6d985bdaf69eca521fc1707aa4
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 10e911a78e123c22f06a6c68d1ae6c3623cf91a793d01149523d5404610cccf4
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 14f21b9c142fe648ffcd8144ffd2850d6c58407b247ddb414830c99963c5ffeb
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 1a375d27d1f8ed7f163ed1bfa36aa19a536c435f05f6715ae257663135057a6a
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 b68e7413760aa7e7164424005e0988572204a43f0f7a28815246e7cf96416f7e
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 d7fb8d7c1bbf67703a9135fdf724fa85704f62681434a36c31122ed48858e897
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 54a1aef8a491c0def764d77f608f79913c8954a3f1be88a75230c203dc6ade91
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 c341471eed6d013a1aa4fe2cf768c10210b0b7a74bc9c4436ba5523089fd1de6
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 d7c53b30f8e66dc577dfac02072f408e18aa477bf42f260a28e6e7b72a9b2981
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 3f77636eb1dce878f68979b7df656fb918a8cca92641a74c4ed98a88f67f0f15
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 109e732ccf9526ba839236a20bdcdb92e570c1269fd878db5b87b54ef90d6d3d
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 f58f23ac0415a339b4016764b92ef9e5b5e12ec74bf88a6f3ecaf94656005ca5
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 8b3ce2b4260d1e558217cff98d90a5eb3b143a8ae6084cfdba8456dd723ac67f
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 3ea2189af63f52803011e72e3c4c51cc1df114da1b35bdd34f19e0b1d8e7e6e0
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 47e5cf1b5f3f0b5e3ab28de97b9c45bcb1ea07bd6318a4933c3faf60f58104ff
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 8312f13211235d62a1e17913dbe64b669c12619172b8934b81062db18661ba0b
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 615b312f1446d2a5a50792ec9b3fcc8988b64a9d04aed719087eb55050c044f6
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 63847da451054a85beb42ca30b0cdf8808e5f3ed685b6259c6cc54f2ab9689cc
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 35c9d017a45322c65b798cd16dc76826aab7cc074b90c5724659d0e12f2eb163
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 18449d587acfe73f8d92d93b07fadafcb14f7e7dfdd0bd8bef97960b784fdf66
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 0b604ec7d06205ae0103faa2ae174572004eba40d146a86d36c07fc134541f92
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 c00649ef265d13db4cde19df9ebad79335dfbfda9d4c3dc1f5511f4ce3b94acf
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 569e00ab63900efe8cac8b673fd9ba4df896e7bb18330f78da093c98a218efd4
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 1c75067700d0368a38596ebeca4b2a81dd41ef92f83a612c9e4ec7939891adb8
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 8325efce729cab2e5575e117d65035b3cd4f67389578be15a6ba9d8b1183b711
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 da5411eb4c6c1ce72abb04743be921de798972112b2775655a6cb6609df8dfd3
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 541dd247fb568a51b91f06efd4e6c8d40500424d4fa69046448fbf6c54d314c8
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 2e8854678f9d28ac4a831d857b0df59f4dea4a8f6eecd25bad7ab5424624b696
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 7a08b15a45590334ce908adae8b9f2451faf18ddb8f0e666fe12aa6c6609d94f
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 863555ec9a9d85559426f65c06e490deac7f478473402181d94e659f642ae4d1
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1KB
          • SHA256 69d426f779f07b16ba6c8878ea14b7b73b9c85b273b9c9aff2d19da4284c3ee5
          • MD5 SHA1 SHA512

          Soft.lnk

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
          • Size 1019B
          • SHA256 e8c73a56485ad2cb35fd70e710caa2cc126293dff32546eb9e670c0ddc888750
          • MD5 SHA1 SHA512

          HelpMe.exe

          • Path C:\Windows\SysWOW64\HelpMe.exe
          • Size 292KB
          • SHA256 02315676ef3f25283f27ee7073279b5da73c38eecbdeabb2fbb9e5b0c728ac4f
          • MD5 SHA1 SHA512 SSDEEP

          desktop.ini.exe

          • Path F:\$RECYCLE.BIN\S-1-5-21-1904519900-954640453-4250331663-1000\desktop.ini.exe
          • Size 293KB
          • SHA256 8d5197661d24430e2f25aafcce3a3d0b0b93ef88943679489ec9d35a0f07e850
          • MD5 SHA1 SHA512 SSDEEP

          AUTORUN.INF

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

          AutoRun.exe

          • Path F:\AutoRun.exe
          • Size 293KB
          • SHA256 8db8d8e5e0d5835754875ba1d7b048772a018af991a277a18d92d538b4a3e7c2
          • MD5 SHA1 SHA512 SSDEEP

          memory/2924-0-0x0000000002230000-0x0000000002231000-memory.dmp

          memory/2924-1443-0x0000000002230000-0x0000000002231000-memory.dmp

          memory/2984-5-0x0000000000740000-0x0000000000741000-memory.dmp