Resubmissions

13-01-2022 13:19

220113-qkhx6sade2 4

12-09-2021 07:40

210912-jhysaacbd3 10

12-09-2021 07:40

210912-jhp55sfbbr 10

12-09-2021 07:39

210912-jhc6kscbd2 10

12-09-2021 07:39

210912-jg161sfbbp 10

12-09-2021 07:38

210912-jgmnmafbbn 10

General

  • Target

    Dot.Tk.123.ticket.keygen.by.CORE.bin.zip

  • Size

    6.1MB

  • Sample

    210912-jhp55sfbbr

  • MD5

    e0e12184991eab552692c03d6853e425

  • SHA1

    2d31a35b75a09cb706bcec021031d0988e3aee97

  • SHA256

    01ecd5534093150c638a818c19f30b7264b3e6e1020edb7a2b17a35f793c6bb1

  • SHA512

    7281e166557eda5505122254ebb50b98ce572d422899f7ecce9d9b95f6f4aa93aaed87ec5511e5a30249be12f47840601edd8f18da23bf9339611516dac47527

Malware Config

Extracted

Path

C:\_readme.txt

Family

djvu

Ransom Note
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-CtDpAM1g5f Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0333gSd743dfRiXRqq62TeogIfmpihYZJ6wDmuUVD07WwczX6Bm
URLs

https://we.tl/t-CtDpAM1g5f

Extracted

Family

azorult

C2

http://kvaka.li/1210776429.php

Extracted

Family

smokeloader

Version

2020

C2

http://varmisende.com/upload/

http://fernandomayol.com/upload/

http://nextlytm.com/upload/

http://people4jan.com/upload/

http://asfaltwerk.com/upload/

rc4.i32
rc4.i32

Targets

    • Target

      Dot.Tk.123.ticket.keygen.by.CORE.bin

    • Size

      6.2MB

    • MD5

      0cb3efeb5d9312e068c57e7e55affed7

    • SHA1

      aad1c65d257c7d2929ffb916114bc532feba0a16

    • SHA256

      a974231d8889e05fedfbe73b5cc58e414de6fd5031765c998a24ac326f35b0b2

    • SHA512

      236ce9aa9e71f279e7833c4f0afbad15a2de4aaf62e78a82f1132224951f25f0a184aacfe5c963a20481c20cdb12e1a56e6aaf662f4a07c756abe0c539488898

    • Azorult

      An information stealer that was first discovered in 2016, targeting browsing history and passwords.

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • ElysiumStealer

      ElysiumStealer (previously known as ZeromaxStealer) is an info stealer that can steal login credentials for various accounts.

    • Modifies Windows Defender Real-time Protection settings

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE JS/Nemucod requesting EXE payload 2016-02-01

      suricata: ET MALWARE JS/Nemucod requesting EXE payload 2016-02-01

    • suricata: ET MALWARE Known Sinkhole Response Header

      suricata: ET MALWARE Known Sinkhole Response Header

    • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

      suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    • suricata: ET MALWARE Win32/AZORult V3.3 Client Checkin M16

      suricata: ET MALWARE Win32/AZORult V3.3 Client Checkin M16

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Blocklisted process makes network request

    • Creates new service(s)

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Modifies file permissions

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks