Overview

overview

10

Static

static

10

1/0178b79b...bd.exe

windows7-x64

10

1/0280cde4...60.exe

windows7-x64

10

1/08b76206...65.exe

windows7-x64

10

1/0e4fc438...91.exe

windows7-x64

3

1/0fb86a8b...05.exe

windows7-x64

10

1/25898c73...8f.exe

windows7-x64

10

1/2c2e9491...3c.exe

windows7-x64

3

1/2ef0f582...2e.exe

windows7-x64

3

1/39884fc0...82.exe

windows7-x64

10

1/3a72ecec...8a.exe

windows7-x64

10

1/3bfcb4f7...71.exe

windows7-x64

10

1/4103411f...f5.exe

windows7-x64

10

1/4e0fdb84...95.exe

windows7-x64

9

1/5297372f...33.exe

windows7-x64

5

1/68292f38...e4.exe

windows7-x64

3

1/6da4696b...e5.exe

windows7-x64

7

1/7021c9cb...78.exe

windows7-x64

10

1/752f5cc5...60.exe

windows7-x64

10

1/7c7cded8...0c.exe

windows7-x64

10

1/97d29ffc...84.exe

windows7-x64

10

1/a306cc84...03.exe

windows7-x64

3

1/ae1a168f...74.exe

windows7-x64

7

1/b13f2364...d6.exe

windows7-x64

8

1/b2a1d168...9d.bat

windows7-x64

8

1/bb29aeb6...bd.exe

windows7-x64

8

1/c8e5a24a...f5.bat

windows7-x64

8

1/c9736cdc...97.exe

windows7-x64

8

1/d58780d1...a0.exe

windows7-x64

10

1/de19e016...d0.exe

windows7-x64

3

1/e886016e...51.exe

windows7-x64

3

1/f0f496ec...f4.bat

windows7-x64

8

1/f28599b0...23.exe

windows7-x64

10

Resubmissions

11-12-2024 15:32

241211-sy44nssrdm 10

09-08-2024 21:57

240809-1t1vfs1cpm 10

06-08-2024 13:01

240806-p9f97szdlm 10

06-08-2024 12:52

240806-p3672stdkg 10

06-08-2024 12:29

240806-ppa8fsygqr 10

06-08-2024 12:26

240806-pmc92ashlh 10

Analysis

  • max time kernel
    118s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    06-08-2024 12:26

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: 217B9D5D58C4AD3CD34CA2D20830EAAB >>>> 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 (323) 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:580
    • C:\ProgramData\F650.tmp
      "C:\ProgramData\F650.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:2144
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\F650.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2100
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x14c
    1⤵
      PID:2660

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-2257386474-3982792636-3902186748-1000\desktop.ini
      Filesize

      129B

      MD5

      09faac5c39cab2449699fe7f497e46ba

      SHA1

      07e69bbe0927fff3349888a86db6bf326728c87f

      SHA256

      dbe65e5c3f69d60b97937aec0fbf2d1f30873c356fd083dd69a8352bb005ebef

      SHA512

      dc629649c8c658e020d12dc00330ef0ce566fe72abe0d2a07c05eca94a98fd560af0172519c395fb6927f7eea4a8e55ddab176158f726d102dd1ecefd45750ad

      Download Submit

    • C:\7V7uPExzv.README.txt
      Filesize

      1KB

      MD5

      cfdc67d24c8915a045b00acd53679556

      SHA1

      99e4c853fbe1366a5cb4eb126bdf3c98a7f18329

      SHA256

      f5aae2d16c0000dddfe7327062a37675b21630b8c1383dff3813ac1c3fe3be19

      SHA512

      ca5861e4e7a29e00d628cc84a404c65a6ca6674bf209959bba9adc8b17b04e44c86635f018ae14c4453e7e19e9a4f8e4d0b040b52124449670b29a82f74994e8

      Download Submit

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

      146KB

      MD5

      6e2f236c43958f2e965393621aacaa7e

      SHA1

      b101742fa650d0cc462b180c996c2716655dada6

      SHA256

      64a5516e08dd29ffb6b0122ce134fb67c7cef5ce2bae74824aa6b37f51b587eb

      SHA512

      321773c92ad4c9686193071b1e0f9e78b809f2ad02f3c8a9adb9af1b11d141dede0758e3ef1989541106853091cc103f16389f8929a2c2ddabe77b98d36a1da2

      Download Submit

    • F:\$RECYCLE.BIN\S-1-5-21-2257386474-3982792636-3902186748-1000\DDDDDDDDDDD
      Filesize

      129B

      MD5

      9780674d51615b74f132d6dfab413a06

      SHA1

      719178da60a42fc2f4dc068d898fd0bc893047dc

      SHA256

      dcda9cfc9416a9c8a2bea44f73a5b41494e57c01c757be26b30e3c87ed0f5a15

      SHA512

      2cf182d304a5fc671fcf9307a7fe9ed66fc1f1ad213922da480755cb49fee1a1532ceae2453129a8a593aace647a02866911724c5945091ed2f669d0441541a6

      Download Submit

    • \ProgramData\F650.tmp
      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

      Download Submit

    • memory/580-0-0x00000000022C0000-0x0000000002300000-memory.dmp

      Filesize

      256KB

      Download

    • memory/2144-858-0x0000000000401000-0x0000000000404000-memory.dmp

      Filesize

      12KB

      Download

    • memory/2144-860-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download