Overview

overview

10

Static

static

1acaa7aed3...le.exe

windows7_x64

10

1acaa7aed3...le.exe

windows10_x64

10

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General

  • Target

    1acaa7aed372080632dd0958c63c0a9ad56f8b4dbdc3c265801321018766b29f.sample

  • Size

    731KB

  • Sample

    210726-gyscw43d1x

  • MD5

    3d9a9103b13744b626e67f5dab6618e7

  • SHA1

    9ad16fb6810dd136985c8a78688b81e275ddf979

  • SHA256

    1acaa7aed372080632dd0958c63c0a9ad56f8b4dbdc3c265801321018766b29f

  • SHA512

    b76543636c4b25393e3a896fe9bf48d26dc6d6da72e417a00a63692e54e03d766c2e4e43f9c591b0cd62b7022e76be57ddbf14924e837e41932baa22b5eb9c34

Score
10/10
ctblockerransomware

Malware Config

Extracted

Path

C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\!Decrypt-All-Files-aijhjrd.txt

Ransom Note
Your documents, photos, databases and other important files have been encrypted with strongest encryption and unique key, generated for this computer. Private decryption key is stored on a secret Internet server and nobody can decrypt your files until you pay and obtain the private key. If you see the main locker window, follow the instructions on the locker. Overwise, it's seems that you or your antivirus deleted the locker program. Now you have the last chance to decrypt your files. Open http://jssestaew3e7ao3q.onion.cab or http://jssestaew3e7ao3q.tor2web.org in your browser. They are public gates to the secret server. If you have problems with gates, use direct connection: 1. Download Tor Browser from http://torproject.org 2. In the Tor Browser open the http://jssestaew3e7ao3q.onion/ Note that this server is available via Tor Browser only. Retry in 1 hour if site is not reachable. Copy and paste the following public key in the input form on server. Avoid missprints. 6UQYQQV-5AXU6LP-HNJSOYN-LHAZLEI-Y35L725-UA6DH6P-7627YWS-ABULIOH EVQC7WZ-5GZIAOH-MB4WJRT-Q3FNXDE-FC6IEQX-OXZKVCJ-NZIKHMC-MJMBU4D OVNUF2A-7XC6CGT-M7BPSSN-2X2STIX-AWEDCO6-ODCMFW3-YMCXJTC-I2NNJWW Follow the instructions on the server.
URLs

http://jssestaew3e7ao3q.onion.cab

http://jssestaew3e7ao3q.tor2web.org

http://jssestaew3e7ao3q.onion/

Extracted

Path

C:\Users\Admin\Documents\!Decrypt-All-Files-aijhjrd.txt

Ransom Note
Your documents, photos, databases and other important files have been encrypted with strongest encryption and unique key, generated for this computer. Private decryption key is stored on a secret Internet server and nobody can decrypt your files until you pay and obtain the private key. If you see the main locker window, follow the instructions on the locker. Overwise, it's seems that you or your antivirus deleted the locker program. Now you have the last chance to decrypt your files. Open http://jssestaew3e7ao3q.onion.cab or http://jssestaew3e7ao3q.tor2web.org in your browser. They are public gates to the secret server. If you have problems with gates, use direct connection: 1. Download Tor Browser from http://torproject.org 2. In the Tor Browser open the http://jssestaew3e7ao3q.onion/ Note that this server is available via Tor Browser only. Retry in 1 hour if site is not reachable. Copy and paste the following public key in the input form on server. Avoid missprints. 6UQYQQV-5AXU6LP-HNJSOYN-LHAZLEI-Y35L725-UA6DH6P-7627YWS-ABULIOH EVQC7WZ-5GZIAOH-MB4WJRT-Q3FNXDE-FC6IEQX-OXZKVCJ-NZIKHMC-MJMBU4D OVNUF2A-7XC6CGT-M7BPSSN-2X2STIX-AWEDT46-EVCMFW3-YMCXJTC-I2N5LMV Follow the instructions on the server.
URLs

http://jssestaew3e7ao3q.onion.cab

http://jssestaew3e7ao3q.tor2web.org

http://jssestaew3e7ao3q.onion/

Extracted

Path

C:\ProgramData\ummcbbc.html

Ransom Note
Your documents, photos, databases and other important files have been encrypted with strongest encryption and unique key, generated for this computer. Private decryption key is stored on a secret Internet server and nobody can decrypt your files until you pay and obtain the private key. If you see the main locker window, follow the instructions on the locker. Overwise, it's seems that you or your antivirus deleted the locker program. Now you have the last chance to decrypt your files. Open http://jssestaew3e7ao3q.onion.cab or http://jssestaew3e7ao3q.tor2web.org in your browser. They are public gates to the secret server. If you have problems with gates, use direct connection: 1. Download Tor Browser from http://torproject.org. 2. In the Tor Browser open the http://jssestaew3e7ao3q.onion Note that this server is available via Tor Browser only. Retry in 1 hour if site is not reachable. Copy and paste the following public key in the input form on server. Avoid missprints. Follow the instructions on the server. The list of your encrypted files: Path File
URLs

http://jssestaew3e7ao3q.onion.cab

http://jssestaew3e7ao3q.tor2web.org

http://jssestaew3e7ao3q.onion

Extracted

Path

C:\Users\Admin\Documents\!Decrypt-All-Files-ywrfvle.txt

Ransom Note
Your documents, photos, databases and other important files have been encrypted with strongest encryption and unique key, generated for this computer. Private decryption key is stored on a secret Internet server and nobody can decrypt your files until you pay and obtain the private key. If you see the main locker window, follow the instructions on the locker. Overwise, it's seems that you or your antivirus deleted the locker program. Now you have the last chance to decrypt your files. Open http://jssestaew3e7ao3q.onion.cab or http://jssestaew3e7ao3q.tor2web.org in your browser. They are public gates to the secret server. If you have problems with gates, use direct connection: 1. Download Tor Browser from http://torproject.org 2. In the Tor Browser open the http://jssestaew3e7ao3q.onion/ Note that this server is available via Tor Browser only. Retry in 1 hour if site is not reachable. Copy and paste the following public key in the input form on server. Avoid missprints. 2VULOOJ-6IFGMPY-OWH5KS5-ERDO3AU-XXVFM6W-I4UJRAS-355AZD7-2VGIKEG A72Y7BP-P2EKWTU-72XWYTI-YVIO6LK-ZYB2UEM-MOS2GJ4-6S4XDAH-6FULZ3U SKIIUFP-KI7DUM5-QJZ5E5I-32PNAZC-2TLSHUC-PBSSKRL-7CULS6V-H3EMFRM Follow the instructions on the server.
URLs

http://jssestaew3e7ao3q.onion.cab

http://jssestaew3e7ao3q.tor2web.org

http://jssestaew3e7ao3q.onion/

Targets

    • Target

      1acaa7aed372080632dd0958c63c0a9ad56f8b4dbdc3c265801321018766b29f.sample

    • Size

      731KB

    • MD5

      3d9a9103b13744b626e67f5dab6618e7

    • SHA1

      9ad16fb6810dd136985c8a78688b81e275ddf979

    • SHA256

      1acaa7aed372080632dd0958c63c0a9ad56f8b4dbdc3c265801321018766b29f

    • SHA512

      b76543636c4b25393e3a896fe9bf48d26dc6d6da72e417a00a63692e54e03d766c2e4e43f9c591b0cd62b7022e76be57ddbf14924e837e41932baa22b5eb9c34

    Score
    10/10
    ctblockerransomware

    • CTB-Locker

      Ransomware family which uses Tor to hide its C2 communications.

      ransomwarectblocker

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • Checks computer location settings

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

    • Drops desktop.ini file(s)

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

      ransomware

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks