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Overview

overview

10

Static

static

683a09da21...96.exe

windows7_x64

10

683a09da21...96.exe

windows10-2004_x64

10

unpacked.exe

windows7_x64

10

unpacked.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    155s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    13/02/2022, 12:21

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General

  • Target

    unpacked.exe

  • Size

    72KB

  • MD5

    108756f41d114eb93e136ba2feb838d0

  • SHA1

    8c6b51923ee7da2f4642c7717db95fbb77d96164

  • SHA256

    b38b4c1dcf6d6ecd1bbfc236b43c37c18044c2f42f11e5088384f4bd0751929c

  • SHA512

    d13183e8ba4689475b0cb3f5cc7acbfba34a1ba661eb5988984647c2bd3e561cfa03f6267f60ae9fb2ca0783f26c105cdbcfc89def598c48968febef23c21aaa

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: XpVh1a3MqRPea2e1GJEvAYeVkpvF98sqhS 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: XpVh1a3MqRPea2e1GJEvAYeVkpvF98sqhS 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\unpacked.exe
    "C:\Users\Admin\AppData\Local\Temp\unpacked.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1480
    • C:\Users\Admin\AppData\Local\Temp\yoe.exe
      "C:\Users\Admin\AppData\Local\Temp\yoe.exe" {846ee340-7039-11de-9d20-806e6f6e6963} "C:\Users\Admin\AppData\Local\Temp\unpacked.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:1992
      • C:\Windows\SysWOW64\VSSADMIN.EXE
        "C:\Windows\system32\VSSADMIN.EXE" Delete Shadows /All /Quiet
        3⤵
        • Interacts with shadow copies
        PID:632
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1692

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1480-55-0x0000000074B21000-0x0000000074B23000-memory.dmp

    Filesize

    8KB

    Download