Windows 7 deprecation

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Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    30/07/2024, 17:51

General

  • Target

    LB3.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 (340) files with added filename extension

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 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.

  • 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.

  • Modifies Control Panel 2 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\LB3.exe
    "C:\Users\Admin\AppData\Local\Temp\LB3.exe"
    1⤵
    • Loads dropped DLL
    • 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:2632
    • C:\ProgramData\5BB.tmp
      "C:\ProgramData\5BB.tmp"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:768
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\5BB.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2120
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x14c
    1⤵
      PID:2656

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-940600906-3464502421-4240639183-1000\AAAAAAAAAAA

      Filesize

      129B

      MD5

      64e9a06f21510c2fc4b0532ef9bf4ab6

      SHA1

      b3ff7ac0168c588bcaa633fff639053127a2c304

      SHA256

      5e6e8d1a615c379d762de0ed017f16da32ab108299a5213ecfca0800ba153580

      SHA512

      ac3faa1d7e54be78c7f3162bf785066a0134e3cf658a4e09b111d6080ca9b163161edda61762f75cc13b7787824ca549ec30c0a2d2a2cecdfbcedb7e0ca0037a

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

      Filesize

      147KB

      MD5

      56a78d1de25d0ac0bbd5f18c824323b0

      SHA1

      e6edba3e6bb2c80293691321bb44281d63264e19

      SHA256

      ac924840ef805e73884946dc1ad87bfd311d96a28de327af173b3d52e2b20e2b

      SHA512

      1d9d74fc8bf3b54db7925394a03d5557bbd183ec77d8f93d13ef29c3b265d0a9bc1d0fcb3d2839fad823ba9ac4094840c486b0fd29891b1e72d41c36887b8f4c

    • C:\d093fD6aI.README.txt

      Filesize

      1KB

      MD5

      c98594c43506b3f4802ebd608ba6be0f

      SHA1

      d8e090434533229fbdcc104b6a43903bfdf8c081

      SHA256

      804575f74fe5b2f28c181f3413b23a0355693ffd9a2c1e69546bb598ce67ebae

      SHA512

      5e3767a0606dae51c49a41ddfde2dd90a17eb53c79212d46c556141bcc6c54bd1c06348a7077251ff75228a5e3604880cabb1309a68490736203e3c49f5c6cba

    • F:\$RECYCLE.BIN\S-1-5-21-940600906-3464502421-4240639183-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      bf88f00531165fc4565dba7f4dc6dfbe

      SHA1

      a302e6af21924d9d303da846b3ff55e5218909cb

      SHA256

      77c7ee262165b0b4df7822762963ce8ff55f74615d2c8c458cf5644340784e55

      SHA512

      b6fbf08fcaec87159771126ff8a642c26c90961c0ae1d2aa8795a2f28429775152725f909bca20debc8ab2737e6baf5f58e7a8a518175c81fef43695e3cc0533

    • \ProgramData\5BB.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • memory/768-877-0x000000007EF20000-0x000000007EF21000-memory.dmp

      Filesize

      4KB

    • memory/768-876-0x000000007EF80000-0x000000007EF81000-memory.dmp

      Filesize

      4KB

    • memory/768-875-0x0000000002340000-0x0000000002380000-memory.dmp

      Filesize

      256KB

    • memory/768-874-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

      Filesize

      4KB

    • memory/768-907-0x000000007EF60000-0x000000007EF61000-memory.dmp

      Filesize

      4KB

    • memory/768-906-0x000000007EF40000-0x000000007EF41000-memory.dmp

      Filesize

      4KB

    • memory/2632-0-0x0000000000E00000-0x0000000000E40000-memory.dmp

      Filesize

      256KB