Windows 7 deprecation

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Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/07/2024, 01:19

General

  • Target

    3c13ae9a53b29849fd3bb75d3259a23658cd687441f8bdd610487007c51d2eac.exe

  • Size

    147KB

  • MD5

    11c051782c327c662507801124f0b95b

  • SHA1

    5dd92a1ab1cfc5b73b5dcdb3edd6ea6d498339df

  • SHA256

    3c13ae9a53b29849fd3bb75d3259a23658cd687441f8bdd610487007c51d2eac

  • SHA512

    239f6eba567c59cf956e4f6c8ffe6588bb2b16ede03e939f79db69ae23631881285475f634780a40f94038035fb1329743c9b57c92a9690ec927f6d372d9ca2e

  • SSDEEP

    1536:GzICS4AAwczUUf8y8gvMH+1zGSNAojMP95D1xDuc1UR7zBEDZhT+IhMjo9Uyz:9qJogYkcSNm9V7DJ1URfqVXmjo9T

Malware Config

Extracted

Path

C:\d093fD6aI.README.txt

Ransom Note
~~~ LockBit 5.01 the world's fastest ransomware since 2019~~~ >>>> Your data are stolen and encrypted The data will be published on TOR website if you do not pay the ransom BTC amount 0.01 = up to 12hr BTC amount 0.02 = up to 24hr BTC amount 0.1 = up 48 hr BTC amount 0 , deleted all files from you PC, and post all infirmation to public. where send BTC: bc1qm7sg7p2jkgthv7pkjy856sh9lr5x3yrpzv099d :not valid after 07/23/2024 10PM EST. Time just 12 hr, after everythink will be removed You can buy them on the exchange or at an ATM https://coinatmradar.com. You can find the addresses here buy with credit or debet card online https://www.moonpay.com/buy. You have 12 hours for the transfer, 24 hours for the amount of 0.02, and of course, you can always wait 48 hours and pay 0.1. After that, send a request with confirmation to TOX , faster way! You can contact us using Tox messenger without registration and SMS https://tox.chat/download.html. Using Tox messenger, we will never know your real name, it means your privacy is guaranteed. If you want to contact us, tox. Tox ID LockBitSupp: B90F5C1EC3C13400F6D0B22B772C5FAB086F8C41A0C87B92A8B3C7F2ECBBCE191A455140273E
URLs

https://coinatmradar.com

https://www.moonpay.com/buy

https://tox.chat/download.html

Signatures

  • Renames multiple (623) 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 2 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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3c13ae9a53b29849fd3bb75d3259a23658cd687441f8bdd610487007c51d2eac.exe
    "C:\Users\Admin\AppData\Local\Temp\3c13ae9a53b29849fd3bb75d3259a23658cd687441f8bdd610487007c51d2eac.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:5056
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:4740
    • C:\ProgramData\1F0.tmp
      "C:\ProgramData\1F0.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:4408
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\1F0.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1668
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:4200
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:4248
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{57078CC5-B31F-4895-9C29-84510974BA0D}.xps" 133668623651580000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:4292

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-2927035347-1736702767-189270196-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      363b00d3f52fb7026f593d9d7b5b67e0

      SHA1

      4b21c14895fcc47f37eb0c49077634c15da933b0

      SHA256

      151da21bfe11ff891f66cce71dd1c1fa8451ea49d9dcc55bb8446ab02f7470bc

      SHA512

      733e11c17cd19603f484f764b11baa0de2fbf704318f66e8aebd4e6b296369a08b1b16d504a88c8c5ecd50b4e723bbccbc300eb0a74e5293dfd0ac154c8db47f

    • C:\ProgramData\1F0.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • C:\Users\Admin\AppData\Local\Temp\EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

      Filesize

      147KB

      MD5

      94f1772f905aa2dbd590bc74630b0360

      SHA1

      3e1b048a3944ab3a43f21944b410a3f6a3a8ca17

      SHA256

      5a5fbd12066e349e7ccb2f7970cc8eecc3eb1f0bf4288b936754ad343f02fefa

      SHA512

      0ddf4c672348542ffa621a1db0a7debd78796cdf1c309da7c94b236534971f1035bae2f5d5d9a1500200d02bbd8508d1437cf970dd18da6f408e3ac22f4e1843

    • C:\d093fD6aI.README.txt

      Filesize

      1KB

      MD5

      c98594c43506b3f4802ebd608ba6be0f

      SHA1

      d8e090434533229fbdcc104b6a43903bfdf8c081

      SHA256

      804575f74fe5b2f28c181f3413b23a0355693ffd9a2c1e69546bb598ce67ebae

      SHA512

      5e3767a0606dae51c49a41ddfde2dd90a17eb53c79212d46c556141bcc6c54bd1c06348a7077251ff75228a5e3604880cabb1309a68490736203e3c49f5c6cba

    • F:\$RECYCLE.BIN\S-1-5-21-2927035347-1736702767-189270196-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      4ea6a628a6b9564942cfca03eacd2f46

      SHA1

      ddada777da65e859cb1520a06d6d70f7ae55f722

      SHA256

      f6aacaf4d76cbc4a976633b2162b8e8c6b4d2c83a9aeeda20ba3e4b7fd76339f

      SHA512

      3c1eaee5debb871e09661eb9c8dca58cb58efe05c000e095754321201e74b50f068a1a06821f90519863fdd2e969669b4be733f6ab64cee24de8ac5c5b7df0ba

    • memory/4292-2819-0x00007FFA44F90000-0x00007FFA44FA0000-memory.dmp

      Filesize

      64KB

    • memory/4292-2818-0x00007FFA44F90000-0x00007FFA44FA0000-memory.dmp

      Filesize

      64KB

    • memory/4292-2816-0x00007FFA44F90000-0x00007FFA44FA0000-memory.dmp

      Filesize

      64KB

    • memory/4292-2822-0x00007FFA44F90000-0x00007FFA44FA0000-memory.dmp

      Filesize

      64KB

    • memory/4292-2824-0x00007FFA44F90000-0x00007FFA44FA0000-memory.dmp

      Filesize

      64KB

    • memory/4292-2853-0x00007FFA42C50000-0x00007FFA42C60000-memory.dmp

      Filesize

      64KB

    • memory/4292-2854-0x00007FFA42C50000-0x00007FFA42C60000-memory.dmp

      Filesize

      64KB

    • memory/5056-2-0x0000000001020000-0x0000000001030000-memory.dmp

      Filesize

      64KB

    • memory/5056-0-0x0000000001020000-0x0000000001030000-memory.dmp

      Filesize

      64KB

    • memory/5056-1-0x0000000001020000-0x0000000001030000-memory.dmp

      Filesize

      64KB