Overview

overview

10

Static

static

b9931966ab...f9.exe

windows7_x64

10

b9931966ab...f9.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    157s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    13-02-2022 12:20

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General

  • Target

    b9931966abd62c3f06f9072af2b74900fffb0c5305ca58a486fb9291f3d1f9f9.exe

  • Size

    73KB

  • MD5

    d4b7c1a8597b37290ce836cdebdd1b1f

  • SHA1

    621a3838729afc06e7f9d678e06f3a2ffb28cfdd

  • SHA256

    b9931966abd62c3f06f9072af2b74900fffb0c5305ca58a486fb9291f3d1f9f9

  • SHA512

    4273cb57fb01b841784a91fe03a050be59f62535e1f34df503f2f1677bce9677ae8367384882b9dabe06c992d1d953f005e70d0f0754533df15c8b70ae236f30

Score
10/10
satanabootkitpersistenceransomware

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: Xmw3ufNfX5zWkspZAmCWgcF1epMahhZWTR 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: Xmw3ufNfX5zWkspZAmCWgcF1epMahhZWTR 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).

    ransomwaresatana
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • 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.

    bootkitpersistence
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9931966abd62c3f06f9072af2b74900fffb0c5305ca58a486fb9291f3d1f9f9.exe
    "C:\Users\Admin\AppData\Local\Temp\b9931966abd62c3f06f9072af2b74900fffb0c5305ca58a486fb9291f3d1f9f9.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:880
    • C:\Users\Admin\AppData\Local\Temp\gfn.exe
      "C:\Users\Admin\AppData\Local\Temp\gfn.exe" {846ee340-7039-11de-9d20-806e6f6e6963} "C:\Users\Admin\AppData\Local\Temp\B99319~1.EXE"
      2⤵
      • Executes dropped EXE
      • Deletes itself
      • Loads dropped DLL
      • Writes to the Master Boot Record (MBR)
      • Drops file in Program Files directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:756
      • C:\Windows\SysWOW64\VSSADMIN.EXE
        "C:\Windows\system32\VSSADMIN.EXE" Delete Shadows /All /Quiet
        3⤵
        • Interacts with shadow copies
        PID:1308
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1620

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/880-55-0x0000000075B11000-0x0000000075B13000-memory.dmp

    Filesize

    8KB

    Download