Analysis

  • max time kernel
    155s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/02/2024, 09:23

General

  • Target
    ae2b7b9558ccb84393dc9805186a90ce.exe
  • Size 656KB
  • Sample240229-lcsp7ach36
  • SHA256 39c67c0c86de0db51f75149ae415b71251c63ac42c763588d36e8f091000e064
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Renames multiple (4936) files with added filename extension

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

  • 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\ae2b7b9558ccb84393dc9805186a90ce.exe
    "C:\Users\Admin\AppData\Local\Temp\ae2b7b9558ccb84393dc9805186a90ce.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:4680
    • 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:1360

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 657KB
        • SHA256 96c16b809799f4629b50f14343ff74bd69412990aa0e8fd0d8d6048c026e1e78
        • MD5 SHA1 SHA512 SSDEEP

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 8c1ced279531a6dfac19e053cdc4fc512ceaa3658afdf6c68a92936e158e259f
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 c8bda6ca55193eafbbb96af0ae4a8cb9df7dcba308329cb896deed67056fa9b3
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 93cbeaa31a81ed176c18b7c85abc05f566e45a5733335c46ca6d6a0f3d33af81
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 bc283b3c0b7d021e3440aaf99f82007388f5da4d462e0fcf51e89baa78c53aeb
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 83cee218e539536539837bbdc7ea6f77604f85f162c8f1c5694da54856b1be88
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 5a6f978f47d57b0f129a9c6e7843f45361977fa026f1988cef917a0190975b61
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 09d56f291305a238b12f02cbf73380a443e4401967d5515e5646cad72163cfb1
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 b6e57a8d43844f03426e4510677541b270af06e55b7ecdd006a22eb480f5b8d1
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 e4167440ce168c439edb03541c47ec3cb00f152c5a1b817e7032a20b6815d312
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 2471a92e632843c37d1f4822932c963328edd0ed9b7c58ee00b98ca4bbb59393
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 b410469ef24a0b52930b43539d3e501ffa8cc91146f7487f0ef23910ea44fb66
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 3e4b071e152cb38a227be116ff337ef2daa05baeebfe3c96b29f289150751181
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 e6a0013bfaaa703776fbdf5eef38a88621923f346d7a45936af55270daab8a55
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 bb276958b27e27e555f2862ddf794f2f775ab2a39583852f3c5021892d516f26
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 3eaec0596ec3120fc18a6b78429391cdd4289a7a523cb72729d3be0c9b079cdc
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 bb0e98c002b599b83c5041902ff580b4bf5a57b89f40f578f10d1134e499a818
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 eb7b591b92779cabc7b7e913b000069de84e243cfb2623880138a2f5845d84bc
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 b13279dd399f6d512d7360cb237568356f28685c421779f63c121cf91e83a044
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 237b32c9bd1e2245be5d05d9301363d76798e77fd39373ec62333f4f00ab0bcf
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 3c6101ca37a362a73ed6829819d9c20e6bbd9f4394e4d3c633cb049763ee7e32
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 1b1e5eed187f4b57720e349b670008da34b0ac23347d52fb6cd184ecd618d802
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 bd179a65cc897228ee6cba9273ddebd4351d649d869b197279c1bc97ae01dd81
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 1d60c6e4d2c1568fbc6c419c8a7512906233983d51337897a9d30ddefdad8b9c
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 099a8af93970d291bfbf1505a360c2210655dda89c6f940863ed00404a5bf37f
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 76de6920706006bfa9da840b052e261dfc462363a20d6e60ab7176b8aa0763a0
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 f94388eca62a32d0dbb20d673f23957910c1a4d89ea2c3d50f6da35ad136703d
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 d6c2a77c77b45359e8ac9960e743a423812c4fa37831dd0b1850d3a995fda0fe
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 2d1c1c6d304a2dc6da4d56d6dc885bde2a543bd08df927ffc8fb29f5b93305a3
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 1236a53a880c4ac005de636ca94e4f73f586d088a184594963b636ccbaceb39c
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 bd4d3cd97ee9d828803c7c79ef903eec8bb577299fd2183ea4f572a2866c249e
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 60092bfc68f60d6f49a4a2f412673f129a11aca896afa6f731b0444ba931465a
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 57cdea1a67baab1bd9b97d1298e59eacc82f357d36eea7bebf105f81a8dcae40
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 587d4d6996b654bd798b8b13ecba7a69585273d98af36697ed9d8bbdd2a2d817
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 1a35b690dba983c229d86e4a72b61c7ba709d854e0f927fb0695dea813c65e30
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 a009ac9bdfc97190ac0e4977839b4f53dd681608a79c37a2a8490ebab3602ad1
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 0c8fb139c5ab25e2e38d464bdad30c5710ae8ea5a4e62ad46824dd447bf88aaa
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 7def76735a7c4e03b1ee6371ef1eaf39d52d1e679049e3aea1b3b3b26c18fdfc
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 a83ee659bf867920f25794f7aa03b7362f6ee6194e4a061f4a4d366b193bdcd7
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 8658099140e665bb17b7db2ec760e499a5328d7b32c1913bbc65c064aea3559c
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 26c3705d83b624caa34db4c815ab822f7d822901710ff30a2087d884cd0708bc
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 6228de2f03d73d7918fa959b7881dfa18f1560366294689709056a95e812a60d
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 cdecc22458ebcfce86b8a1e606b2ffa4fe95b16efc9b370d3bfef510fb898397
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 99540b261753a7aae52f6779c350df10edc14834b72e8340f8e940d9b47d86db
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 96aaacddaf49ebe9a563fdf2d265427f4d00fa1f71aefdf529bcb1b00a0323da
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 6e4764df2f7f3136271670e25074d3ebd91c92fb1726c12e397b07d164c6d8e9
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 1d23cc65aab74aadaf21c582c035700fe11707be99d7894e4c4fe0cea545f43b
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1KB
        • SHA256 76f4bb7b3e0fad2f39f087487628afef9d52ac262244eb171095a4c5946d3b8a
        • MD5 SHA1 SHA512

        Soft.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk
        • Size 1019B
        • SHA256 8babc405fa67be4cf31bcfd3b23db91afd2fd46f6c0fcd93782a8a71c54cbbbf
        • MD5 SHA1 SHA512

        HelpMe.exe

        • Path C:\Windows\SysWOW64\HelpMe.exe
        • Size 654KB
        • SHA256 fa5d6049474d71f0e97dbbc6d2600055b5e5f5a3daf2a90896ffd7cfe500851a
        • MD5 SHA1 SHA512 SSDEEP

        desktop.ini.exe

        • Path F:\$RECYCLE.BIN\S-1-5-21-2727153400-192325109-1870347593-1000\desktop.ini.exe
        • Size 657KB
        • SHA256 6574190ca9405b8f684936a93d05d536683f4193b96c60a33081dc878a498588
        • MD5 SHA1 SHA512 SSDEEP

        AUTORUN.INF

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

        AutoRun.exe

        • Path F:\AutoRun.exe
        • Size 656KB
        • SHA256 39c67c0c86de0db51f75149ae415b71251c63ac42c763588d36e8f091000e064
        • MD5 SHA1 SHA512 SSDEEP

        memory/1360-2351-0x00000000020D0000-0x00000000020D1000-memory.dmp

        memory/1360-5-0x00000000020D0000-0x00000000020D1000-memory.dmp

        memory/4680-0-0x0000000002210000-0x0000000002211000-memory.dmp

        memory/4680-2050-0x0000000002210000-0x0000000002211000-memory.dmp