Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    94s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/11/2024, 14:21

General

  • Target

    Lockbit-Ransomware-Builder-main/Decrypter.exe

  • Size

    146KB

  • MD5

    39c9477cf131ca5ccc05c8871c0e10e6

  • SHA1

    07b2581b2cb41053d09c4bb896aaabc1d28f2a7b

  • SHA256

    939281eac1c6e5aa2e4238a1e545e67b2609c15f517474b2a5133bb64fe9c1eb

  • SHA512

    689fd585232031f746b1573d3ed66ac329420611d4e1092ce6952b49ab0c168091726bd02189a4e183d1196ced4f51953e4eb25a5219a36f86d8f6761da9f129

  • SSDEEP

    1536:xzICS4AAwczUUf8y8gvMH+1zGSNAojMP95D1xDqk3sA9atm8z+L8QBfuSoyAMjwT:KqJogYkcSNm9V7D7352v+L8DnyAewT

Malware Config

Signatures

  • Renames multiple (617) files with added filename extension

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 2 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Control Panel 2 IoCs
  • Modifies registry class 5 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Lockbit-Ransomware-Builder-main\Decrypter.exe
    "C:\Users\Admin\AppData\Local\Temp\Lockbit-Ransomware-Builder-main\Decrypter.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:412
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:1780
    • C:\ProgramData\D571.tmp
      "C:\ProgramData\D571.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:2436
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\D571.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3196
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:2708
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:4224
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{D62C72BD-1AD0-4FA6-82DD-D753D31C2039}.xps" 133771044947680000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        PID:4336
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\1pvSvxmZY.README.txt
      1⤵
      • Opens file in notepad (likely ransom note)
      • Suspicious use of FindShellTrayWindow
      PID:1092

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-2437139445-1151884604-3026847218-1000\MMMMMMMMMMM

      Filesize

      129B

      MD5

      f5f52a56b69934665f744eb6c0f841f1

      SHA1

      0457e12f51ff3bdc1329cb9cbf024012d2375cab

      SHA256

      d868621e2e6331e65af751b587a009e4ee73430ebbac204746c62130a5b3e405

      SHA512

      7caf804e909846fda7c3d24f448e5d5f38db3d9ef3fa73ee67ae650a6a387accd35582588ced095e817fd7e4c11b5cc072f95f62c64c248cc0b855a56fec698f

    • C:\1pvSvxmZY.README.txt

      Filesize

      348B

      MD5

      9810eed5ecd966874ebeb398ac6531ed

      SHA1

      17d2e2bc15df652734b79185cb323e652559fd6a

      SHA256

      53183e5ed0cf42bed46b17c9dcc92ea49737bb57dce34f1e20675a913796566e

      SHA512

      b26ca61461ed8b09f037e33d209cd0a22959b89e3e7895e057f544010fd5ae037e4fa76311763c121cd6e8b3050de22fa7d2163b4d9cf40585e14f5024e0cb79

    • C:\ProgramData\D571.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{D62C72BD-1AD0-4FA6-82DD-D753D31C2039}.xps

      Filesize

      13.1MB

      MD5

      424dcb5a08c0bde9bf5d997cc437ebfa

      SHA1

      aae4831f6e61309147866d24729ccdbf919a3eed

      SHA256

      538b1bb43383c912e03fa80425fe15519012e58dce4c143d1ed7d212d20cd96c

      SHA512

      12a01b0b769ec0d5084cc3330d31c0de4f557be8196bec55344ca2d959e996df21346b2c34854fcaf0b065c499e5e87f6ccd0d49f05bed1d7a4dda60a1338d3e

    • C:\Users\Admin\AppData\Local\Temp\Lockbit-Ransomware-Builder-main\DDDDDDDDDDDDD

      Filesize

      146KB

      MD5

      ebb8b28522551b146fdefd5694e06793

      SHA1

      17f8195468095918b0e47c421d8d70c18a2759f4

      SHA256

      6789692fe9bbcb047db12baf5465e0a1697e54f42df4621a0b97701eeb0eff4e

      SHA512

      b288d257ddce10652b5b7e961f73fc58c72a17e1f04a351537216dab8a2db5eef2404a4fb72da95e764cdcbf90a8bd8282d5544dc5c60fa08c939193067a7cf7

    • C:\Users\Admin\AppData\Local\Temp\{2FFC57B7-A945-4096-AEC4-4E56A4CE12D5}

      Filesize

      4KB

      MD5

      660ea414d8ee4d94ef44b519df47beb9

      SHA1

      3ed858db084cf080615a4335501a5d33ab39ab66

      SHA256

      d444393940bd88d765d35bbdfc5f50971121356cb4859807ea450b2ab99ccad6

      SHA512

      b4d15b1a83449160d88b4ac8d1887526bc976ef5f650ab066e2f6677f8c2d7ab37c9ded839dc3fb38de4e72b0eb9ee197e367eeca302965b6e94132e340f0b70

    • C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2

      Filesize

      4KB

      MD5

      81fbf7354fbf29b59fdcf9cf33f8d05a

      SHA1

      e3f9bd1691af8e7b9a8d5b55d4a3fc8ad1d94ce0

      SHA256

      775acbaaedde438bb5b4132a70995571e4ec8f392d42d79f603d6b94a24ab0fd

      SHA512

      9363266f96de708fe959987e2131f7d057e9f683734271caab9c6646bd6a37063cfd0dc3979f2d9718afd1627142ae052cdc1a19945bfca864d65d911539cb37

    • F:\$RECYCLE.BIN\S-1-5-21-2437139445-1151884604-3026847218-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      287bf8143418cb2217a3975447e6dbf9

      SHA1

      ffbdde296c35aeb3c37340bcc1c822a7d6145e32

      SHA256

      22a4ca3d9f469c8d56519d277fd3f915667b31923d4e77d790fa3eaf1950e50d

      SHA512

      87f18a7837719c8ea110e99527ba33b2ca3cc1e89acb92840f8485c263f677906d7e8ddb874946ea3c535a2ed0e1755b5b2184f18c60cfc3b83221d06b3bb715

    • memory/412-2-0x0000000002FA0000-0x0000000002FB0000-memory.dmp

      Filesize

      64KB

    • memory/412-2956-0x0000000002FA0000-0x0000000002FB0000-memory.dmp

      Filesize

      64KB

    • memory/412-2955-0x0000000002FA0000-0x0000000002FB0000-memory.dmp

      Filesize

      64KB

    • memory/412-1-0x0000000002FA0000-0x0000000002FB0000-memory.dmp

      Filesize

      64KB

    • memory/412-2957-0x0000000002FA0000-0x0000000002FB0000-memory.dmp

      Filesize

      64KB

    • memory/412-0-0x0000000002FA0000-0x0000000002FB0000-memory.dmp

      Filesize

      64KB

    • memory/4336-2977-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp

      Filesize

      64KB

    • memory/4336-2972-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp

      Filesize

      64KB

    • memory/4336-3006-0x00007FF9B5270000-0x00007FF9B5280000-memory.dmp

      Filesize

      64KB

    • memory/4336-3007-0x00007FF9B5270000-0x00007FF9B5280000-memory.dmp

      Filesize

      64KB

    • memory/4336-2973-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp

      Filesize

      64KB

    • memory/4336-2976-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp

      Filesize

      64KB

    • memory/4336-2971-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp

      Filesize

      64KB

    • memory/4336-3067-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp

      Filesize

      64KB

    • memory/4336-3066-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp

      Filesize

      64KB

    • memory/4336-3065-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp

      Filesize

      64KB

    • memory/4336-3064-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp

      Filesize

      64KB