Overview

overview

10

Static

static

10

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

1/68292f38...e4.exe

windows7-x64

3

1/68292f38...e4.exe

windows10-2004-x64

10

1/6da4696b...e5.exe

windows7-x64

7

1/6da4696b...e5.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    121s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    02-08-2024 12:41

Sharing

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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: 217B9D5D58C4AD3CF792D2B366C335A8 >>>> 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 (381) files with added filename extension

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

    ransomware
  • 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.

    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
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • 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
  • Modifies Control Panel 2 IoCs
    evasion
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 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\1\0fb86a8ba8fdf57990c283080a671c1320cbcdfd0e8b5f5a250d9c38a6fce305.exe
    "C:\Users\Admin\AppData\Local\Temp\1\0fb86a8ba8fdf57990c283080a671c1320cbcdfd0e8b5f5a250d9c38a6fce305.exe"
    1⤵
    • Loads dropped DLL
    • 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:2680
    • C:\ProgramData\D70D.tmp
      "C:\ProgramData\D70D.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:800
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\D70D.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2740
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x14c
    1⤵
      PID:1396

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-1385883288-3042840365-2734249351-1000\desktop.ini
      Filesize

      129B

      MD5

      d5633d045fc4fe85b7b6902950b2681d

      SHA1

      da702b4607408df6200de010dd9c2d35e596a0ae

      SHA256

      824663a89e638f0c5931194b5ee6af54ca652b1e9f981cb440a331afcc5c0f62

      SHA512

      c4c80c1a5265d8358615bc0aef7ba4c499c7925d3fb35b15c765615c789378ea6517fc1686ed2e26da9707007d569ca9d5005770e97b8b76d01c9c03b3b3224d

      Download Submit

    • C:\7V7uPExzv.README.txt
      Filesize

      1KB

      MD5

      5ac3b6d9b0eda7a6618b8cd3abc27798

      SHA1

      d1283a173802cc22c8dfb3faef97558b095a1173

      SHA256

      9ec108c7bd73f533da5b0076a6ce21487689f6588f9c03e4612b869ff60c716f

      SHA512

      376cfc9572aad2d68b66b4bb2742c622cdc28a06be5e9bf6c32218b575b3621531d6ca7c8a4b13d0bacc1250c3125b2f0b8bf9b12582c2268075be3d5ca6e1bb

      Download Submit

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

      146KB

      MD5

      b3b213ce4de01e685106fe4b3507ee1b

      SHA1

      243f7a035396c9be00332cb3d801251b5d6ee50b

      SHA256

      dccabcf868ebf210a5b0db4217f2d0238a85bff44f21ef14c2f0e5d950e05b03

      SHA512

      5d072f4c2e087c34769f4fdfba9e52b5ce472c13a7b19a47fc1de88d000f5585a393051278a5a1bd63954be9e3bd63602a96401609c04b6fcb0d93c8a4a71e24

      Download Submit

    • F:\$RECYCLE.BIN\S-1-5-21-1385883288-3042840365-2734249351-1000\desktop.ini
      Filesize

      129B

      MD5

      4eedc76382b390f8798e1a9e640d1692

      SHA1

      2475af03e4e70f0998247adab1cb5c1f1a7a667f

      SHA256

      3f18f3b2ea87e429bfccd6b663208f68faac666f0859c90b7e2f73b754592500

      SHA512

      f247c533c8f871bf280eb653f64c59bbd714fb2d8b6eb07a6deee681340bb11c998be18bd51b79127882dceb99425aba3c0fc197e3a1299fe94ced1edeff168f

      Download Submit

    • \ProgramData\D70D.tmp
      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

      Download Submit

    • memory/800-919-0x000000007EF80000-0x000000007EF81000-memory.dmp

      Filesize

      4KB

      Download

    • memory/800-920-0x000000007EF20000-0x000000007EF21000-memory.dmp

      Filesize

      4KB

      Download

    • memory/800-918-0x00000000002B0000-0x00000000002F0000-memory.dmp

      Filesize

      256KB

      Download

    • memory/800-917-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/800-950-0x000000007EF60000-0x000000007EF61000-memory.dmp

      Filesize

      4KB

      Download

    • memory/800-949-0x000000007EF40000-0x000000007EF41000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2680-0-0x0000000000D70000-0x0000000000DB0000-memory.dmp

      Filesize

      256KB

      Download