Analysis

  • max time kernel
    163s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    13-02-2022 12:20

General

  • Target

    ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72.exe

  • Size

    34KB

  • MD5

    a5444dd6ee8773915096c31bd882e247

  • SHA1

    88265756945984ebd5fe58827c39ca1f1a2bf487

  • SHA256

    ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72

  • SHA512

    1d535287436a2b30895860ca5e06784bc6d1a3c35f513e890d44ce3a84bbdead3ff39882929cce1e5a62a186999e639bd8473da2384f1c8f5326c993a3fc2247

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: 2811CAB3DC2A63CEB89AED116AECF3F1 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: 2811CAB3DC2A63CEB89AED116AECF3F1 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).

  • 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 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 50 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72.exe
    "C:\Users\Admin\AppData\Local\Temp\ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3728
    • C:\Users\Admin\AppData\Local\Temp\innnvj.exe
      "C:\Users\Admin\AppData\Local\Temp\innnvj.exe" {be652f30-73f6-11ec-82c1-806e6f6e6963} "C:\Users\Admin\AppData\Local\Temp\EA2C16~1.EXE"
      2⤵
      • Executes dropped EXE
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of AdjustPrivilegeToken
      PID:3656
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1552
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:3832
  • 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:1796

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    56fcb7602d356ca1c2e7bc9f94e66724

    SHA1

    6c20da0ff228a720376a824129a35e9a5679a98f

    SHA256

    01a734ce83dba0a25b9aff72258e785b127b0a80303e7985bba477c0aa7524aa

    SHA512

    615310dfeff574648ff4a8476069d4fab7ad92316de40964c0a8918f0ade816f62ec2bf82366dd5084edd50bafd6a5af8b50caa351c12e4092a0390fb2647043

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

    MD5

    a5444dd6ee8773915096c31bd882e247

    SHA1

    88265756945984ebd5fe58827c39ca1f1a2bf487

    SHA256

    ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72

    SHA512

    1d535287436a2b30895860ca5e06784bc6d1a3c35f513e890d44ce3a84bbdead3ff39882929cce1e5a62a186999e639bd8473da2384f1c8f5326c993a3fc2247

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

    MD5

    a5444dd6ee8773915096c31bd882e247

    SHA1

    88265756945984ebd5fe58827c39ca1f1a2bf487

    SHA256

    ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72

    SHA512

    1d535287436a2b30895860ca5e06784bc6d1a3c35f513e890d44ce3a84bbdead3ff39882929cce1e5a62a186999e639bd8473da2384f1c8f5326c993a3fc2247