Analysis

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

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    16-08-2024 00:30

General

  • Target

    2024-08-16_1e2322b24277332e0ab810551c8f87b9_darkside.exe

  • Size

    146KB

  • MD5

    1e2322b24277332e0ab810551c8f87b9

  • SHA1

    9ea390d9770f47be36cb8c405da0b9fe459921f0

  • SHA256

    c4630ec569053d88fe906f935f6164ea8facf90e56e412d3bf8bdcf2ccda3518

  • SHA512

    8fb18e9a2c2c761544e0fb9fffb71d620dc06ceadfdfc7e3006f9f810a79a10c6fd3ffbc33c87f0600c4b9ac9168a4b23496bfe83e5949b7b9feaeb45e36a244

  • SSDEEP

    3072:R6glyuxE4GsUPnliByocWepnspQclM2F0pV0J27z:R6gDBGpvEByocWeJZEMnuJ2

Malware Config

Extracted

Path

C:\qMRzgE1NN.README.txt

Ransom Note
All your files have been encrypted! All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the e-mail: [email protected] Write YOUR ID FF4165CAFD8295DF9DA85FE1B3FE0EF5 in the message! If there is no response, write here: [email protected] You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the decryption tool that will decrypt all your files. Free decryption as guarantee Before paying you can send us up to 3 file for free decryption. The total size of files must be less than 1Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.) How to obtain Bitcoins The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price. https://localbitcoins.com/buy_bitcoins Also you can find other places to buy Bitcoins and beginners guide here: http://www.coindesk.com/information/how-can-i-buy-bitcoins/

Signatures

  • Renames multiple (7704) 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 2 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
  • Drops file in Program Files directory 64 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 42 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\2024-08-16_1e2322b24277332e0ab810551c8f87b9_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-16_1e2322b24277332e0ab810551c8f87b9_darkside.exe"
    1⤵
    • Loads dropped DLL
    • Drops desktop.ini file(s)
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2096
    • C:\ProgramData\83EF.tmp
      "C:\ProgramData\83EF.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:1732
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\83EF.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2856
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x14c
    1⤵
      PID:1232

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-2703099537-420551529-3771253338-1000\desktop.ini

      Filesize

      129B

      MD5

      c7abd7a3c5a23d37b015f804bc956d61

      SHA1

      a676d0eb8d1ef72da867376af20e4ddfb38130a2

      SHA256

      10ecadb38e71061df91de209d46132154efa1170287f04853601bbb73f00b98a

      SHA512

      bea40975a29918508e0a81436b3f235f94c56b25728405b90d2fba7541116de639500427f336214af27b2867dc62587ee5130065a89b57252976df3b4608b935

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

      Filesize

      146KB

      MD5

      c633122973c031b427ddd2a7a514c2d8

      SHA1

      aab07097fd910070cbad554296d90ab8cee576a7

      SHA256

      e963d8b619b7797830faccf9f5a644e01f72494b8bec5dfd5653edca3448b501

      SHA512

      271eefc029988973566bea44e96273c6f3b861405f05d79eea39df8dd4ce05df2dd4bed19c3393e5e4c196ff6147756793dc3255d46e85ccc0680351738e9df0

    • C:\qMRzgE1NN.README.txt

      Filesize

      1KB

      MD5

      4b7b919c2c8186730ffd020e0e30dda1

      SHA1

      fbb8a1f1634b0f17e0dcf6ac560986d69d7e4d0c

      SHA256

      deeb422a269cd26e9c3d5969bd39e0c0e80926781e945a1a42ebca606d8f128d

      SHA512

      8c2f140fe10d195c848219628fe4d91bf6d762f86774b0426d6b99c3c51c551b8ebadfa7610453af84d362e0a15c069dd4f40dde54f615bad49c955092cd6c35

    • F:\$RECYCLE.BIN\S-1-5-21-2703099537-420551529-3771253338-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      4bf86b0d4a238b7127940333ec3a51ae

      SHA1

      89d171fd88a7c3e62536d5279cd7c1fd19060441

      SHA256

      13512e6cc2bbf2a9837c159dede299bf7b28904b6ca15fb8c701d6aa5aa5d6f3

      SHA512

      b0c019e5f0b16521e52bb2044b59e65138016fd6e54108501a62ea72e51549a09c7de5dff4689e49defe9b3d105ff1fedce28cd773747a1602c86399e1fb6f59

    • \ProgramData\83EF.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • memory/1732-11533-0x000000007EF20000-0x000000007EF21000-memory.dmp

      Filesize

      4KB

    • memory/1732-11532-0x000000007EF80000-0x000000007EF81000-memory.dmp

      Filesize

      4KB

    • memory/1732-11531-0x00000000004C0000-0x0000000000500000-memory.dmp

      Filesize

      256KB

    • memory/1732-11528-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

      Filesize

      4KB

    • memory/1732-11530-0x00000000004C0000-0x0000000000500000-memory.dmp

      Filesize

      256KB

    • memory/1732-11563-0x000000007EF60000-0x000000007EF61000-memory.dmp

      Filesize

      4KB

    • memory/1732-11562-0x000000007EF40000-0x000000007EF41000-memory.dmp

      Filesize

      4KB

    • memory/2096-0-0x0000000002030000-0x0000000002070000-memory.dmp

      Filesize

      256KB