Analysis

  • max time kernel
    162s
  • max time network
    166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    13-02-2022 12:21

General

  • Target

    7a2e499274f7d6140dd2679fc8cea05afb434f6721f952a9ff87293938a936b5.exe

  • Size

    72KB

  • MD5

    fb6f23927a2170bba9af65ca88d7664a

  • SHA1

    37612c59c31dca457e54f5ebba1c4939f6505d63

  • SHA256

    7a2e499274f7d6140dd2679fc8cea05afb434f6721f952a9ff87293938a936b5

  • SHA512

    3df1c1ade15acf27426221ea9459e1b4913f4cd3ead29c0b0c59618a3dbf03a92ecd764b990cf7c6f98b5aa93f9651ea77725e37b28144ef4945ed22d8012b48

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: 18B25953E328E11606833463C8A10A63 and pay on a Bitcoin Wallet: XepTcfFzy1p7LpyRRQyqBz6jszwRVbo1Xm 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: 18B25953E328E11606833463C8A10A63 this is code; you must send BTC: XepTcfFzy1p7LpyRRQyqBz6jszwRVbo1Xm 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).

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 2 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 Windows directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7a2e499274f7d6140dd2679fc8cea05afb434f6721f952a9ff87293938a936b5.exe
    "C:\Users\Admin\AppData\Local\Temp\7a2e499274f7d6140dd2679fc8cea05afb434f6721f952a9ff87293938a936b5.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2648
    • C:\Users\Admin\AppData\Local\Temp\kgtlx.exe
      "C:\Users\Admin\AppData\Local\Temp\kgtlx.exe" {ea90e9d2-74a7-11ec-b993-806e6f6e6963} "C:\Users\Admin\AppData\Local\Temp\7A2E49~1.EXE"
      2⤵
      • Executes dropped EXE
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of AdjustPrivilegeToken
      PID:3568
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:1828
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:1048

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    06de9aca43105f7508e297980406ed69

    SHA1

    16f1d0db36120e70d42c8ca06c5101ce7fdd6ff4

    SHA256

    ad8944aed57da808a6ddbe86a9b631c0c345a5d08d527a54260d420b28bf3d48

    SHA512

    4c1ebb781e59ce8ea07c75d8e69ecdd0ecaee799b22d43434854c36140ba6963dcb08a9febad3fb7ea29bad656eafd4800ba1908337bc620e2b0e0c74d212780

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

    MD5

    fb6f23927a2170bba9af65ca88d7664a

    SHA1

    37612c59c31dca457e54f5ebba1c4939f6505d63

    SHA256

    7a2e499274f7d6140dd2679fc8cea05afb434f6721f952a9ff87293938a936b5

    SHA512

    3df1c1ade15acf27426221ea9459e1b4913f4cd3ead29c0b0c59618a3dbf03a92ecd764b990cf7c6f98b5aa93f9651ea77725e37b28144ef4945ed22d8012b48

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

    MD5

    fb6f23927a2170bba9af65ca88d7664a

    SHA1

    37612c59c31dca457e54f5ebba1c4939f6505d63

    SHA256

    7a2e499274f7d6140dd2679fc8cea05afb434f6721f952a9ff87293938a936b5

    SHA512

    3df1c1ade15acf27426221ea9459e1b4913f4cd3ead29c0b0c59618a3dbf03a92ecd764b990cf7c6f98b5aa93f9651ea77725e37b28144ef4945ed22d8012b48

  • memory/1828-133-0x0000021E64F30000-0x0000021E64F40000-memory.dmp

    Filesize

    64KB

  • memory/1828-134-0x0000021E64F90000-0x0000021E64FA0000-memory.dmp

    Filesize

    64KB

  • memory/1828-135-0x0000021E67CB0000-0x0000021E67CB4000-memory.dmp

    Filesize

    16KB