Analysis

  • max time kernel
    121s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27-12-2024 12:32

General

  • Target

    2024-12-27_d0729e9b53b9ae6898be31d4c82fcedd_darkside.exe

  • Size

    147KB

  • MD5

    d0729e9b53b9ae6898be31d4c82fcedd

  • SHA1

    4cc9743bb3a016eb97d5e12807a52789b13584a2

  • SHA256

    74b812ac49287fd6161fdad78223821f7005501fec4644eaa1dd89b6e40c2f34

  • SHA512

    21e945d238f1e00b7becbccbc1666d1e67f842ef485a5980e7da1975d2c6ccbe99af28d4a9cce36c32511ecf388456d2ead1355ed8c5c123b04b10e369bcf555

  • SSDEEP

    3072:y6glyuxE4GsUPnliByocWep0d0EVvOkEig5ErIiRq:y6gDBGpvEByocWe6ay8icEd

Malware Config

Extracted

Path

C:\gfDvEmfFb.README.txt

Ransom Note
YOUR FILES ARE ENCRYPTED Your files, documents, photos, databases and other important files are encrypted. You are not able to decrypt it by yourself! The only method of recovering files is to purchase an unique decryptor. Only we can give you this decryptor and only we can recover your files. To be sure we have the decryptor and it works you can send an email: [email protected] and decrypt one file for free. But this file should be of not valuable! Your personal DECRYPTION ID: B5FEFD6406D1719D176210B39BA43ED4 Do you really want to restore your files? Write to email: [email protected] Reserved email: [email protected] telegram: @somran2024 Attention! * Do not rename or edit encrypted files and archives containing encrypted files. * Do not try to decrypt your data using third party software, it may cause permanent data loss. * Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam. * We have been in your network for a long time. We know everything about your company most of your information has already been downloaded to our server. We recommend you to do not waste your time if you dont wont we start 2nd part. * You have 24 hours to contact us. * Otherwise, your data will be sold or made public.

Signatures

  • Renames multiple (354) files with added filename extension

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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.

  • 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.

  • Suspicious behavior: EnumeratesProcesses 12 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\2024-12-27_d0729e9b53b9ae6898be31d4c82fcedd_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-27_d0729e9b53b9ae6898be31d4c82fcedd_darkside.exe"
    1⤵
    • Loads dropped DLL
    • Drops desktop.ini file(s)
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1444
    • C:\ProgramData\1333.tmp
      "C:\ProgramData\1333.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:592
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\1333.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2180
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x148
    1⤵
      PID:2496

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-2872745919-2748461613-2989606286-1000\desktop.ini

      Filesize

      129B

      MD5

      4600094c3e88a55628a00d47f79f739a

      SHA1

      66bb7fc4898a44e4521b2419e8130cfc0f8efbb4

      SHA256

      68a9b215f9b86d863aa6baf26812b12e7f549e2c6a40d5c7728332d6efec9810

      SHA512

      dc140aefead9da7b5c58a7854161d64c08346887284814b8c88326fd4af33eb260189608e04322ad0de99ab7808ac29a24b6ecb1f50860ad6fea382393e6e8cf

    • C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

      Filesize

      147KB

      MD5

      930520743d2bcd960c91373921b74710

      SHA1

      1ada44bde31d2acbf5f534f1437a579c8a2c199a

      SHA256

      aa82232562a9120992135dad9162426dfb49bae8231c8ff2a30892191951b442

      SHA512

      59bd21fe7b8beb8206b889e71ea90f9c49e48d78c921be667364fe988aec9e13495dadfdd9242f807d41733940d91fdd200923d308332da12c372551d0f7646a

    • C:\gfDvEmfFb.README.txt

      Filesize

      1KB

      MD5

      662da4357c28f94e70bbee093f70beba

      SHA1

      0a021482612d7f5362b8bee7f6e322da75763821

      SHA256

      15070c3cb417bd298ca57560b1162e4fddcfca259d81478726d150c54dd72742

      SHA512

      f334bfb0f028fa01c619baa0e1bf32bac78354046f7653ac7ed2d7e009689f6c996c0c927dc885f281cc03531b3041face9a8eb3516adc8966acf145e59cf0e6

    • F:\$RECYCLE.BIN\S-1-5-21-2872745919-2748461613-2989606286-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      84157f6dc1ac429a80c41dd6581d7f4a

      SHA1

      04f4d7632570cbbd3035052f68b799b85507aa01

      SHA256

      7777cb394d381e6c78d54c413cde6cf8b53816fd6355119fa28de6d420bcb537

      SHA512

      5d5d3a5ba54ae21d4db30b3f5ca1a06d00f931afcbdd759d6bc0369f0a52509b29c88055cfae9be1de21e3359e2185779ec1bd540950b5a9d663facb934531e4

    • \ProgramData\1333.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • memory/592-884-0x0000000000401000-0x0000000000404000-memory.dmp

      Filesize

      12KB

    • memory/592-886-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/1444-0-0x0000000000220000-0x0000000000260000-memory.dmp

      Filesize

      256KB