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
    145s
  • max time network
    127s
  • 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 12:41

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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: 217B9D5D58C4AD3C897688E338102FAA >>>> 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 (706) 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:4648
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:2664
    • C:\ProgramData\A45F.tmp
      "C:\ProgramData\A45F.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:1620
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\A45F.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1556
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:4392
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3180
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{FD5B68EF-DB21-4C03-9E2F-02BD27F142E0}.xps" 133670761816860000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:4720

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-3774859476-2260090144-3466365324-1000\desktop.ini
      Filesize

      129B

      MD5

      9b11dd91e242d9e111bb8e4e33b65a4d

      SHA1

      35d7b4ea2daa42d971d46c65fc2e0ec1801ebd08

      SHA256

      9706d37699282c6cdb5798742455a06386b991c7c4118dd6a794bcad9cbc75f3

      SHA512

      9fd9d0b35ab35880908b825d0c0fc5b619fc4dea0afd16aae87348f800505d20fd353c293e3ddb5c45954bb1cea0a783496a428d63c5c5edc8fc2d23e88adfd4

      Download Submit

    • C:\7V7uPExzv.README.txt
      Filesize

      1KB

      MD5

      c3f07daeac84c23081d938a12c2a7afb

      SHA1

      d89410e00605af9aa2c202742d424eb210e9bb44

      SHA256

      b0e215f6250a3ecaafc1ad5f07747852ece832ffb7333074404f00f9900c2829

      SHA512

      bbf307a7f28ca9f0411ecf3622df1a6b288b1bbe57776086d469daf77dad6b90e59989b1030d8a9dee02d99aefb54b018d1115cc84bad6485e4a169ec88c4834

      Download Submit

    • C:\ProgramData\A45F.tmp
      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

      Download Submit

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

      146KB

      MD5

      b4b1bea509667248f5d52947b7232b0a

      SHA1

      33822dae5e6f3cf49c8c9e8f9ba15e7a7dec5f8e

      SHA256

      2ff47a4946a48a5f7a3dd7cad90e1fb9443664b03f8fb5b948eabadfe58a178f

      SHA512

      e635880292966fb174776f60db649ac0a8df651699a5de57587854b601d011bd2fcca20b27acab34389172e3707939aacc373c38d5a2656e633d7dbe08c57da4

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\{DDFB215F-67EF-400E-833E-350762A615A4}
      Filesize

      4KB

      MD5

      64e1cc451a11793a13fba019f279e5ef

      SHA1

      3a929076ffc4207e16d85f8643d507d1f4816e7f

      SHA256

      f98b5837cafca67ab4ea7765d6137e625e3ff69cf1beabc8b6ffa2277bd0d480

      SHA512

      b8ed8d9c0e1711f75ac17621a46ea3d01fe4d5ec7cb40c971c59b26c4c33d0472d8fca37def9efcd2a2c1f873f769c5159a506e10e09edbc5cac03c8e9d59dd8

      Download Submit

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

      4KB

      MD5

      30cd500fe5c1c8154ca75473505c456b

      SHA1

      421658fffc49c8d148e66c8d680bc04e3b0306f3

      SHA256

      b789c88b26c648228c2173cca0245a5796fc4b58444882d724f494c8e264162d

      SHA512

      45b01aa849f5b74cd5c91e8ada3d76a0cec468c23a9057ebbfdb41b1ea19ab279dc730bfce7a057354dc9bba2dad4a814e4dc177ce78a670fb354fd92d08d50a

      Download Submit

    • F:\$RECYCLE.BIN\S-1-5-21-3774859476-2260090144-3466365324-1000\DDDDDDDDDDD
      Filesize

      129B

      MD5

      a3313f34879fd358178043b7633e3213

      SHA1

      ee92c3e832032a19a97cd9ff6bc6fa2c1044e78e

      SHA256

      3d07e6c70fe8fe1a214e2b146eb8d0f285620b75a0bc860e012c46a6fd938a37

      SHA512

      7e7819be58389307947fe4b7815af6b2626230822393e00b6c2115c2b5a98ce493ce54471203f7070440f2df670f0349af8551e906e5684f3ef4f9ac6c8dd62c

      Download Submit

    • memory/4648-1-0x0000000001360000-0x0000000001370000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4648-2-0x0000000001360000-0x0000000001370000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4648-0-0x0000000001360000-0x0000000001370000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4720-3043-0x00007FF8003F0000-0x00007FF800400000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4720-3042-0x00007FF8003F0000-0x00007FF800400000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4720-3046-0x00007FF8003F0000-0x00007FF800400000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4720-3075-0x00007FF7FDC50000-0x00007FF7FDC60000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4720-3078-0x00007FF7FDC50000-0x00007FF7FDC60000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4720-3045-0x00007FF8003F0000-0x00007FF800400000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4720-3041-0x00007FF8003F0000-0x00007FF800400000-memory.dmp

      Filesize

      64KB

      Download