Analysis

  • max time kernel
    130s
  • max time network
    135s
  • platform
    windows10-1703_x64
  • resource
    win10-20231025-en
  • resource tags

    arch:x64arch:x86image:win10-20231025-enlocale:en-usos:windows10-1703-x64system
  • submitted
    24-11-2023 16:30

Errors

Reason
Machine shutdown

General

  • Target

    unpacked.exe

  • Size

    72KB

  • MD5

    108756f41d114eb93e136ba2feb838d0

  • SHA1

    8c6b51923ee7da2f4642c7717db95fbb77d96164

  • SHA256

    b38b4c1dcf6d6ecd1bbfc236b43c37c18044c2f42f11e5088384f4bd0751929c

  • SHA512

    d13183e8ba4689475b0cb3f5cc7acbfba34a1ba661eb5988984647c2bd3e561cfa03f6267f60ae9fb2ca0783f26c105cdbcfc89def598c48968febef23c21aaa

  • SSDEEP

    768:F9NJK3qZRhxXHIQBsLL16BKc+bBQZ/UMc2:rXzXol6cc+lQZMMc2

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: D00BA97AA1E1BCE86718979C6DA868D5 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: D00BA97AA1E1BCE86718979C6DA868D5 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 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • 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.

  • Drops file in Program Files directory 64 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.

  • Modifies data under HKEY_USERS 15 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\unpacked.exe
    "C:\Users\Admin\AppData\Local\Temp\unpacked.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2732
    • C:\Users\Admin\AppData\Local\Temp\yolp.exe
      "C:\Users\Admin\AppData\Local\Temp\yolp.exe" {859a38c1-7373-11ee-8d1d-806e6f6e6963} "C:\Users\Admin\AppData\Local\Temp\unpacked.exe"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Writes to the Master Boot Record (MBR)
      • Drops file in Program Files directory
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2692
      • C:\Windows\SysWOW64\VSSADMIN.EXE
        "C:\Windows\system32\VSSADMIN.EXE" Delete Shadows /All /Quiet
        3⤵
        • Interacts with shadow copies
        PID:4324
      • C:\Windows\SysWOW64\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\!satana!.txt
        3⤵
          PID:42556
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe
          3⤵
            PID:43124
          • C:\Windows\SysWOW64\rundll32.exe
            rundll32.exe
            3⤵
              PID:42560
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe
              3⤵
                PID:42356
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3540
          • C:\Windows\system32\LogonUI.exe
            "LogonUI.exe" /flags:0x0 /state0:0xa3ae8055 /state1:0x41c64e6d
            1⤵
            • Modifies data under HKEY_USERS
            • Suspicious use of SetWindowsHookEx
            PID:43188

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

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

            Filesize

            1KB

            MD5

            d0946505de3b995a41fa507e4e1210da

            SHA1

            4859c15099cacc5e9fd4fa91aa4ba47600233d21

            SHA256

            0afdf24234c23bddd98f9e47e8f941441ee09557ee4c569a784c6417170b29af

            SHA512

            b8ba4edfee99157c3b241751396caa81caf383a6c3da9568cc00e20ed2af3ac17668f3aabbc2df21fc07a348eea2e202d3d714474cc0d5fd689bf46db1945fd6

          • C:\Users\Admin\AppData\Local\Temp\yolp.exe

            Filesize

            72KB

            MD5

            108756f41d114eb93e136ba2feb838d0

            SHA1

            8c6b51923ee7da2f4642c7717db95fbb77d96164

            SHA256

            b38b4c1dcf6d6ecd1bbfc236b43c37c18044c2f42f11e5088384f4bd0751929c

            SHA512

            d13183e8ba4689475b0cb3f5cc7acbfba34a1ba661eb5988984647c2bd3e561cfa03f6267f60ae9fb2ca0783f26c105cdbcfc89def598c48968febef23c21aaa

          • C:\Users\Admin\AppData\Local\Temp\yolp.exe

            Filesize

            72KB

            MD5

            108756f41d114eb93e136ba2feb838d0

            SHA1

            8c6b51923ee7da2f4642c7717db95fbb77d96164

            SHA256

            b38b4c1dcf6d6ecd1bbfc236b43c37c18044c2f42f11e5088384f4bd0751929c

            SHA512

            d13183e8ba4689475b0cb3f5cc7acbfba34a1ba661eb5988984647c2bd3e561cfa03f6267f60ae9fb2ca0783f26c105cdbcfc89def598c48968febef23c21aaa

          • C:\odt\!satana!.txt

            Filesize

            1KB

            MD5

            d0946505de3b995a41fa507e4e1210da

            SHA1

            4859c15099cacc5e9fd4fa91aa4ba47600233d21

            SHA256

            0afdf24234c23bddd98f9e47e8f941441ee09557ee4c569a784c6417170b29af

            SHA512

            b8ba4edfee99157c3b241751396caa81caf383a6c3da9568cc00e20ed2af3ac17668f3aabbc2df21fc07a348eea2e202d3d714474cc0d5fd689bf46db1945fd6

          • memory/43124-4455-0x0000000002F20000-0x0000000002F21000-memory.dmp

            Filesize

            4KB