Overview

overview

10

Static

static

10

240802-n97...ed.zip

windows7-x64

1

240802-n97...ed.zip

windows10-2004-x64

1

bfc092b384...af.zip

windows7-x64

1

bfc092b384...af.zip

windows10-2004-x64

1

1/0178b79b...bd.exe

windows7-x64

10

1/0178b79b...bd.exe

windows10-2004-x64

10

1/0280cde4...60.exe

windows7-x64

10

1/0280cde4...60.exe

windows10-2004-x64

10

1/08b76206...65.exe

windows7-x64

10

1/08b76206...65.exe

windows10-2004-x64

10

1/0e4fc438...91.exe

windows7-x64

3

1/0e4fc438...91.exe

windows10-2004-x64

10

1/0fb86a8b...05.exe

windows7-x64

10

1/0fb86a8b...05.exe

windows10-2004-x64

10

1/25898c73...8f.exe

windows7-x64

10

1/25898c73...8f.exe

windows10-2004-x64

10

1/2c2e9491...3c.exe

windows7-x64

3

1/2c2e9491...3c.exe

windows10-2004-x64

10

1/2ef0f582...2e.exe

windows7-x64

3

1/2ef0f582...2e.exe

windows10-2004-x64

10

1/39884fc0...82.exe

windows7-x64

10

1/39884fc0...82.exe

windows10-2004-x64

10

1/3a72ecec...8a.exe

windows7-x64

10

1/3a72ecec...8a.exe

windows10-2004-x64

10

1/3bfcb4f7...71.exe

windows7-x64

10

1/3bfcb4f7...71.exe

windows10-2004-x64

10

1/4103411f...f5.exe

windows7-x64

10

1/4103411f...f5.exe

windows10-2004-x64

10

1/4e0fdb84...95.exe

windows7-x64

3

1/4e0fdb84...95.exe

windows10-2004-x64

7

1/5297372f...33.exe

windows7-x64

5

1/5297372f...33.exe

windows10-2004-x64

5

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
    02-08-2024 12:27

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General

  • Target

    1/0fb86a8ba8fdf57990c283080a671c1320cbcdfd0e8b5f5a250d9c38a6fce305.exe

  • Size

    146KB

  • MD5

    2357ecbcf3b566c76c839daf7ecf2681

  • SHA1

    89d9b7c3eff0a15dc9dbbfe2163de7d5e9479f58

  • SHA256

    0fb86a8ba8fdf57990c283080a671c1320cbcdfd0e8b5f5a250d9c38a6fce305

  • SHA512

    bb5630ae44e684f2dfc74478c57bf97a94045501a64022d563e87f2a60d777307cab2b5a14e6764d25a2fd1f27901624c1ee76ca551d5a5e3a21abc4befef401

  • SSDEEP

    3072:V6glyuxE4GsUPnliByocWepo2NVLiguo/pyEwUS:V6gDBGpvEByocWeauV2gvzwU

Score
10/10
defense_evasiondiscoveryransomwarespywarestealer

Malware Config

Extracted

Path

C:\7V7uPExzv.README.txt

Ransom Note
~~~NULLBULGE LOCK - BASED ON LOCKBIT~~~ >>>> Your data is encrypted... but dont freak out If we encrypted you, you majorly fucked up. But... all can be saved But not for free, we require an xmr payment >>>> What guarantees that we will not deceive you? We are not a politically motivated group and we do not need anything other than your money. If you pay, we will provide you the programs for decryption. Life is too short to be sad. Dont be sad money is only paper. Your files are more important than paper right? If we do not give you decrypter then nobody will pay us in the future. To us, our reputation is very important. There is no dissatisfied victim after payment. >>>> You may contact us and decrypt one file for free on these TOR sites with your personal DECRYPTION ID Download and install TOR Browser https://www.torproject.org/ Write to a chat and wait for the answer, we will always answer you. Sometimes you will need to wait a while Links for Tor Browser: http://nullblgtk7dwzpfklgktzll27ovvnj7pvqkoprmhubnnb32qcbmcpgid.onion/ Link for the normal browser http://group.goocasino.org https://nullbulge.com >>>> Your personal DECRYPTION ID: 217B9D5D58C4AD3CF5B37849E37770B1 >>>> Warning! Do not DELETE or MODIFY any files, it can lead to recovery problems!
URLs

http://nullblgtk7dwzpfklgktzll27ovvnj7pvqkoprmhubnnb32qcbmcpgid.onion/

http://group.goocasino.org

https://nullbulge.com

Signatures

  • Renames multiple (649) files with added filename extension

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

    ransomware
  • 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.

    spywarestealer
  • 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.

    defense_evasion
  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 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.

    discovery
  • 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
    evasion
  • 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\1\0fb86a8ba8fdf57990c283080a671c1320cbcdfd0e8b5f5a250d9c38a6fce305.exe
    "C:\Users\Admin\AppData\Local\Temp\1\0fb86a8ba8fdf57990c283080a671c1320cbcdfd0e8b5f5a250d9c38a6fce305.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2376
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:5408
    • C:\ProgramData\FA8D.tmp
      "C:\ProgramData\FA8D.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:5756
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\FA8D.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5980
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:5476
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:5548
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{4C2429D1-6941-4EB6-B0D1-F58189160AD4}.xps" 133670752999790000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:5632

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-1266786182-1874524688-71015548-1000\AAAAAAAAAAA
      Filesize

      129B

      MD5

      7f326f8df0833737c79fe8882a591473

      SHA1

      1178645859482450591ea0a3a063b3c3c0e1eaee

      SHA256

      dac0d0357b6fb885be97a1ea04c4f77dfa8289fa705b631bcde33c8a5a059eb2

      SHA512

      15417e8f656f3f5c1fc460695e37666b80bff877b8e4e2f6b0e14cc0a8ee933d5e03b1665006f449a88927de7756b5e81c4c33f28421bd869e403df8b96ce4c6

      Download Submit

    • C:\7V7uPExzv.README.txt
      Filesize

      1KB

      MD5

      51b213010191f0d5db351da15518a2e6

      SHA1

      c98f73de4bd3fbcb4443d3ff73a3fce393f9fc5d

      SHA256

      7cb26231b386d82c055fbdd5fa02bf294229906c58a73b1edda4ca6d1994981a

      SHA512

      0bdc53d42a48cf5a74f9fe506691690b77ca2b15d6b831af2455b50d3947b944bf48a7d5e6fdc504d9b8e38bd96757fc7d47fff28f45e34db961c93620ff67d9

      Download Submit

    • C:\ProgramData\FA8D.tmp
      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\1\CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
      Filesize

      146KB

      MD5

      a1390667869bd4446ffa785812d4d4ea

      SHA1

      26e0cf2a4cb7411f7282c435f938817be83a1f0d

      SHA256

      b9976c3e80cb0a8970c247c9cc05e173047c2653211bf09803d47fe50dd1eda0

      SHA512

      2080a0bac243fb82efe85592afc104dcbddde56fc34fe1586c1ce5a387119f14ef9898f2b93a54f76ed0687eb5470ac22f596603ae280f6477d0d89865dbb154

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\{7C2465E8-5E90-42CB-82C0-959669DCAC98}
      Filesize

      4KB

      MD5

      facf3a6a713507f718defbad003712bf

      SHA1

      4cd83124948b663f35d6d6a90f39a70645f2fa6e

      SHA256

      1911f43f36d672171afc60ad4cb9cea25bc93542ffeb1ba761a0996d28e34509

      SHA512

      ce9d8555c92a041645aebbc0a3aa3042d7f1810bb7698c7e4a967e6680d58557dc5faa9fa40de742f275772864512a6a73cd465b9ff042c430112154bbabca89

      Download Submit

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

      4KB

      MD5

      d3079e218f59aa9034c98876b1754110

      SHA1

      f8f21211e5d7f5f796e7453cb8b65a2bbe17d33f

      SHA256

      2becd9a81ea28fb4946966d633635458f2358d3c64789dc8a5638748d98552c6

      SHA512

      58ef2e42c67c90a99b9a75dbfca2bfb878b4eaa5d849a86807f3ea569c63131c2f43ca3ebf0b64c1997245d28ea40b905cf0e7939d5e5508fc1af0dd123c4a2a

      Download Submit

    • F:\$RECYCLE.BIN\S-1-5-21-1266786182-1874524688-71015548-1000\DDDDDDDDDDD
      Filesize

      129B

      MD5

      3ae0813d381a2f53d31341031efd9ae7

      SHA1

      36da3ad79f5ad7f835bd626b789bfdff08f7ebbc

      SHA256

      b9166ddd63eac440c10218826c528116b59eaad23373827d50a3df0421bd3ac0

      SHA512

      fa6c66226bcc1da595aae0ebc79d647234623bfa0606db112dc86c2f31350d26d72918810ec839a49aabd0d4c2098f2a7194970fe6fbbb193f308c69de04b389

      Download Submit

    • memory/2376-2-0x0000000000F90000-0x0000000000FA0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2376-0-0x0000000000F90000-0x0000000000FA0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2376-1-0x0000000000F90000-0x0000000000FA0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/5632-3004-0x00007FF821330000-0x00007FF821340000-memory.dmp

      Filesize

      64KB

      Download

    • memory/5632-3003-0x00007FF821330000-0x00007FF821340000-memory.dmp

      Filesize

      64KB

      Download

    • memory/5632-3007-0x00007FF821330000-0x00007FF821340000-memory.dmp

      Filesize

      64KB

      Download

    • memory/5632-3002-0x00007FF821330000-0x00007FF821340000-memory.dmp

      Filesize

      64KB

      Download

    • memory/5632-3009-0x00007FF821330000-0x00007FF821340000-memory.dmp

      Filesize

      64KB

      Download

    • memory/5632-3038-0x00007FF81F110000-0x00007FF81F120000-memory.dmp

      Filesize

      64KB

      Download

    • memory/5632-3039-0x00007FF81F110000-0x00007FF81F120000-memory.dmp

      Filesize

      64KB

      Download