Overview

overview

10

Static

static

10

silly.zip

windows7-x64

1

silly.zip

windows10-2004-x64

1

bfc092b384...af.zip

windows7-x64

1

bfc092b384...af.zip

windows10-2004-x64

1

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

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
    123s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    09-08-2024 21:57

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: 217B9D5D58C4AD3C6EC022FD604BEDC8 >>>> 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 (362) 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
  • 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
  • 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:1920
    • C:\ProgramData\E012.tmp
      "C:\ProgramData\E012.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:608
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\E012.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1396
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x148
    1⤵
      PID:1444

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-2958949473-3205530200-1453100116-1000\DDDDDDDDDDD
      Filesize

      129B

      MD5

      e146884038a1359e245542bd2461c655

      SHA1

      322b46d7660b54ee6f5a87146ac5b3970f9d0435

      SHA256

      f4719379fe17e1344262f36bc96fe9c4de44e248bb5d8a6915790e72141f4c18

      SHA512

      74fcd3690e006dcdafb88f41bfa7fbd1bac7e44d53a4f1509cdcac585b1fa28161380f48fe581173736725366e664cfde206ed3bc70a68a28410fb7aa46fd390

      Download Submit

    • C:\7V7uPExzv.README.txt
      Filesize

      1KB

      MD5

      ba9e31cc22be1d76ef0c1ca129621b56

      SHA1

      6b29c349fc82e9ff5f1c542d82e6cd51333c9e4c

      SHA256

      b45caa55486eae743a2e1200aaf31e48467302199cfc34d3fa34cd0506e6d1b5

      SHA512

      adbe6237b7f1acbb02e43aa84d7f03ddf1b279016fcbaf60a41ebd0ebcc41632cb6f90d079ed9a7be32ffe75339ef6b33fa40307dce5bce372d7afa0739aff1f

      Download Submit

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

      146KB

      MD5

      245d0944e80b312004e9c938681f9205

      SHA1

      251d1dc49728497f6ea218c81fd3642bb4a81879

      SHA256

      161ed799a00a17c452ce31d05567b2314514582f28584e247d603b6134a62f39

      SHA512

      317e5998c0cc8f2abb4eab41a415c929db77940aa29ca9b664e59c0722e833c56ac64ae3b07b4b8601c9b1fc5f8f7429c119480bc580a12c00fe633fac338fca

      Download Submit

    • F:\$RECYCLE.BIN\S-1-5-21-2958949473-3205530200-1453100116-1000\DDDDDDDDDDD
      Filesize

      129B

      MD5

      94d9bd0b2da20396f8a1b1b9e704e1f3

      SHA1

      d0ab84b375ff416a20e52d3c694823b4e0d579be

      SHA256

      79f4adb95926fad6afa256a07cd03495c4a87dd61dd13e0183be0fce8b6f42e1

      SHA512

      859b39c8d1d6970456526d4db733f37a94e6028d529d925254f614dbea9d2312f2ca7274085be610b57305ad4d8284290314f699ba3cb19d4d73f55b946f035a

      Download Submit

    • \ProgramData\E012.tmp
      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

      Download Submit

    • memory/608-902-0x000000007EF20000-0x000000007EF21000-memory.dmp

      Filesize

      4KB

      Download

    • memory/608-901-0x000000007EF80000-0x000000007EF81000-memory.dmp

      Filesize

      4KB

      Download

    • memory/608-900-0x0000000002340000-0x0000000002380000-memory.dmp

      Filesize

      256KB

      Download

    • memory/608-899-0x0000000002340000-0x0000000002380000-memory.dmp

      Filesize

      256KB

      Download

    • memory/608-898-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/608-932-0x000000007EF60000-0x000000007EF61000-memory.dmp

      Filesize

      4KB

      Download

    • memory/608-931-0x000000007EF40000-0x000000007EF41000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1920-0-0x0000000000310000-0x0000000000350000-memory.dmp

      Filesize

      256KB

      Download