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
    117s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    02-08-2024 12:27

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: 217B9D5D58C4AD3C21C45091205F8540 >>>> 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 (363) 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:2696
    • C:\ProgramData\6F3.tmp
      "C:\ProgramData\6F3.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:996
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\6F3.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1048
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x14c
    1⤵
      PID:1760

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-1506706701-1246725540-2219210854-1000\desktop.ini
      Filesize

      129B

      MD5

      25caf9356b36a381cc31a00237e9c5c9

      SHA1

      85b89c7716f4ae212a77a96469ec6814ffaf4a09

      SHA256

      ff8f58981e42ea786d85868ff0e99ec3fa25a73467cdd88d863bd053d770ba96

      SHA512

      4655cd16dc934acbe7603272a5a1b5384a8a2e496e53da779a4681906e4aed0e500b7f30523a4c46c561377331dbff6173c9d54d6aa2967008adf38852c3b3cc

      Download Submit

    • C:\7V7uPExzv.README.txt
      Filesize

      1KB

      MD5

      2b6d8f4fa279a79942302aba3d58e008

      SHA1

      df5cdc158d5ca544c8e02859ef9ea940a0503b69

      SHA256

      73a0a4e1a68639aa0508e67bf344d21e4fd632f4ad7e7bb651c0cac5900c548b

      SHA512

      4518dd886ba555f333986a38801142f661d363d7e5b6953856bff52bac7a63e98e1d5d208d6cf3e771ddaaf31fea1a2559de63aea13109d167f9b5353a65f5b1

      Download Submit

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

      146KB

      MD5

      115fa799a6b821b4fc5e8bcaafeb3de6

      SHA1

      45d46e928a24899f89e7a7a39f7ae83348f5bd92

      SHA256

      85e062df1e7b78f80edbf1f634400391138c0a7000acba1d29b86ae83f93bce3

      SHA512

      15a6147a43aeab208db8e54673616da76cf41b8430142d3e1bb8ca507ea03abff622eaefb9013e0f33b8c7d42c242f3b7758634ea1b591b4e425c20499b497d4

      Download Submit

    • F:\$RECYCLE.BIN\S-1-5-21-1506706701-1246725540-2219210854-1000\DDDDDDDDDDD
      Filesize

      129B

      MD5

      359cc7a5a39ae5cc1940da6d21a74f65

      SHA1

      de46f270c7af66aafd37db3b6534d12eaeef54cd

      SHA256

      a0fa3767b90db3fadadf80505c6ec923fba6647939d861e13bd6a06f4fbb78c6

      SHA512

      89285dae9848e69743addc84017d88c96c53b5586d01b20a52dd7688be8d4ccb001e8db6e68d91a2cfc0814f8c8852fd748949d86a3f2a5aa162c11128a483fb

      Download Submit

    • \ProgramData\6F3.tmp
      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

      Download Submit

    • memory/996-898-0x0000000000401000-0x0000000000404000-memory.dmp

      Filesize

      12KB

      Download

    • memory/996-900-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/2696-0-0x0000000002360000-0x00000000023A0000-memory.dmp

      Filesize

      256KB

      Download