Analysis

  • max time kernel
    28s
  • max time network
    38s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24-02-2024 23:31

General

  • Target

    683a09da219918258c58a7f61f7dc4161a3a7a377cf82a31b840baabfb9a4a96.exe

  • Size

    49KB

  • MD5

    46bfd4f1d581d7c0121d2b19a005d3df

  • SHA1

    5b063298bbd1670b4d39e1baef67f854b8dcba9d

  • SHA256

    683a09da219918258c58a7f61f7dc4161a3a7a377cf82a31b840baabfb9a4a96

  • SHA512

    b52aa090f689765d099689700be7e18922137e7a860a00113e3f72aa6553e94a870bbb741e52de9617506a236a2a59198fb224fcd128576d76642eec9d715df5

  • SSDEEP

    768:AbFw10RFnAwJM7MiqwecUaX5h4IuCdYa+XLXTGY1idL2WYiwtDj:Apw10vnAOIUaJh4IXdWXLXTWLfuFj

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\!satana!.txt

Ransom Note
You had bad luck.There was crypting of all your files in a FS bootkit virus <!SATANA!> To decrypt you need send on this E-mail: [email protected] your private code: A3D90235E1136671AB1195C6078184FF and pay on a Bitcoin Wallet: XbvKCGr8VowpBLwE8VxHNL2oL24ukKcNFw total 0,5 btc After that during 1 - 2 days the software will be sent to you - decryptor - and the necessary instructions. All changes in hardware configurations of your computer can make the decryption of your files absolutely impossible! Decryption of your files is possible only on your PC! Recovery is possible during 7 days, after which the program - decryptor - can not ask for the necessary signature from a public certificate server. Please contact via e-mail, which you can find as yet in the form of a text document in a folder with encrypted files, as well as in the name of all encrypted files.If you do not appreciate your files we recommend you format all your disks and reinstall the system. Read carefully this warning as it is no longer able to see at startup of the computer. We remind once again- it is all serious! Do not touch the configuration of your computer! E-mail: [email protected] - this is our mail CODE: A3D90235E1136671AB1195C6078184FF this is code; you must send BTC: XbvKCGr8VowpBLwE8VxHNL2oL24ukKcNFw here need to pay 0,5 bitcoins How to pay on the Bitcoin wallet you can easily find on the Internet. Enter your unlock code, obtained by E-mail here and press "ENTER" to continue the normal download on your computer. Good luck! May God help you! <!SATANA!>

Signatures

  • Satana

    Ransomware family which also encrypts the system's Master Boot Record (MBR).

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\683a09da219918258c58a7f61f7dc4161a3a7a377cf82a31b840baabfb9a4a96.exe
    "C:\Users\Admin\AppData\Local\Temp\683a09da219918258c58a7f61f7dc4161a3a7a377cf82a31b840baabfb9a4a96.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Users\Admin\AppData\Local\Temp\683a09da219918258c58a7f61f7dc4161a3a7a377cf82a31b840baabfb9a4a96.exe
      "C:\Users\Admin\AppData\Local\Temp\683a09da219918258c58a7f61f7dc4161a3a7a377cf82a31b840baabfb9a4a96.exe"
      2⤵
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:2356
      • C:\Users\Admin\AppData\Local\Temp\rvubit.exe
        "C:\Users\Admin\AppData\Local\Temp\rvubit.exe" {846ee340-7039-11de-9d20-806e6f6e6963} "C:\Users\Admin\AppData\Local\Temp\683A09~1.EXE"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2584
        • C:\Users\Admin\AppData\Local\Temp\rvubit.exe
          "C:\Users\Admin\AppData\Local\Temp\rvubit.exe" {846ee340-7039-11de-9d20-806e6f6e6963} "C:\Users\Admin\AppData\Local\Temp\683A09~1.EXE"
          4⤵
          • Deletes itself
          • Executes dropped EXE
          • Writes to the Master Boot Record (MBR)
          • Suspicious use of AdjustPrivilegeToken
          PID:2224
          • C:\Windows\SysWOW64\VSSADMIN.EXE
            "C:\Windows\system32\VSSADMIN.EXE" Delete Shadows /All /Quiet
            5⤵
            • Interacts with shadow copies
            PID:2396
  • C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    1⤵
      PID:2568

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\!satana!.txt
      Filesize

      1KB

      MD5

      eb2d9199defe99a7b4d3987f49c9461e

      SHA1

      8ed54bdeabd4a94ce99cbe19a6e68550eead8a87

      SHA256

      1ad6baed6a58b169ea98e03443d1792c1a6cdcb70ecac48b8d05babed0a18055

      SHA512

      d171e98ea3a45039a1874b3e1ecb37e976d4f9b81c990d08959180d97742f2437c83965ad07af09725db60d6239f64d8e261e70a0ba6d21389a818fbad16da1c

    • \Users\Admin\AppData\Local\Temp\rvubit.exe
      Filesize

      49KB

      MD5

      46bfd4f1d581d7c0121d2b19a005d3df

      SHA1

      5b063298bbd1670b4d39e1baef67f854b8dcba9d

      SHA256

      683a09da219918258c58a7f61f7dc4161a3a7a377cf82a31b840baabfb9a4a96

      SHA512

      b52aa090f689765d099689700be7e18922137e7a860a00113e3f72aa6553e94a870bbb741e52de9617506a236a2a59198fb224fcd128576d76642eec9d715df5

    • memory/2224-43-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2224-40-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2224-54-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2224-52-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2224-51-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2224-35-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2224-50-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2224-37-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2224-38-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2224-42-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2356-3-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2356-0-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2356-1-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2356-5-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2356-9-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2356-7-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB