Analysis

  • max time kernel
    290s
  • max time network
    261s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/12/2022, 21:22

General

  • Target

    LockB.exe

  • Size

    145KB

  • MD5

    3b9f4d1ddae79966fcf5bdad68e26c80

  • SHA1

    2ddb3fbcf3dfab2bd59b87b4f5fb0f83436f5ce8

  • SHA256

    b9636027efadba46bdd4097a49a09aa764eb3864dd092a70f837c6b8e8b34a50

  • SHA512

    222d8ea629404c1ba0ad11d25400941c160eabd051599ce39901d6502bc1598bbf8edfec625bc7745c30fbee7a52775b3fe836c9c84762b054b08d7e9e4affdc

  • SSDEEP

    3072:oqJogYkcSNm9V7DnYTFBLN0LLVWBvwbu2T:oq2kc4m9tDnYhB5HIb

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops desktop.ini file(s) 1 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). Likely ransomware behaviour.

  • Modifies Control Panel 2 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 56 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\LockB.exe
    "C:\Users\Admin\AppData\Local\Temp\LockB.exe"
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1480
    • C:\ProgramData\D249.tmp
      "C:\ProgramData\D249.tmp"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:4192
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\D249.tmp >> NUL
        3⤵
          PID:1368
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1460

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\AAAAAAAAAAA

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\BBBBBBBBBBB

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\CCCCCCCCCCC

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\EEEEEEEEEEE

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\FFFFFFFFFFF

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\GGGGGGGGGGG

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\HHHHHHHHHHH

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\IIIIIIIIIII

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\JJJJJJJJJJJ

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\KKKKKKKKKKK

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\LLLLLLLLLLL

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\MMMMMMMMMMM

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\NNNNNNNNNNN

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\OOOOOOOOOOO

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\PPPPPPPPPPP

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\QQQQQQQQQQQ

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\RRRRRRRRRRR

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\SSSSSSSSSSS

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\TTTTTTTTTTT

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\UUUUUUUUUUU

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\VVVVVVVVVVV

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\WWWWWWWWWWW

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\XXXXXXXXXXX

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\YYYYYYYYYYY

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\$Recycle.Bin\S-1-5-21-2971393436-602173351-1645505021-1000\desktop.ini

      Filesize

      129B

      MD5

      042e95d491b10376d6b2b46ea1aea9d9

      SHA1

      91b86e378a0ff01e141780c79198779c31f17d24

      SHA256

      97efee78d3ee4c17acbd1adf88be9f67b03f1343a3f08c2fd94b7b82c73d0d73

      SHA512

      f2b3900cba9894134311c7f358e2b39fe7da1849168dc4ac14745fecfd77dd24ec1f7d81dbdec31abc5e48a412ad0739a2bded772fd4f0f178b4a70f26363e7a

    • C:\ProgramData\D249.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • C:\ProgramData\D249.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • memory/4192-162-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB