djvu | 8fd6f9c5145827ebe521fa87d557b4e3159eac4070676c512592640d8fab6e0c

General

Target

8fd6f9c5145827ebe521fa87d557b4e3159eac4070676c512592640d8fab6e0c
Size

741KB
Sample

230605-yh81ksad95
MD5

401c7ffacebe4dfd82589df06dff9564
SHA1

97336c6c9523119d43c17682a33028e65d6f125e
SHA256

8fd6f9c5145827ebe521fa87d557b4e3159eac4070676c512592640d8fab6e0c
SHA512

1e13f589376eda8108ae06999ece27a9551a4cac170c033b1dd445c4d47958811bec5aa53cbc3b5c820ff3eed1f7304ea9041e47032250c78e6f496d664d117d
SSDEEP

12288:d+CGrbt6nhUotmYSU4d3sXFYuZZKi93iCGRdhcgPRchZa5T7+kTakfQ:d+n/snhUo8Uu0ZZWqgPmhw5T6U

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test1/get.php

Attributes

extension
.nerz
offline_id
0vTA6MA1m5nzrdffOCJC7YmAa4Lp6YNN8lOJ4mt1
payload_url
http://colisumy.com/dl/build2.exe

http://zexeq.com/files/1/build3.exe
ransomnote
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-vc50LyB2yb 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: 0722JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

4.1

Botnet

77a63e71a10ee1d81a28b5c866b75922

C2

https://steamcommunity.com/profiles/76561199510444991

https://t.me/task4manager

Attributes

profile_id_v2
77a63e71a10ee1d81a28b5c866b75922
user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36 Edg/112.0.1722.34

Targets

- Target
  
  8fd6f9c5145827ebe521fa87d557b4e3159eac4070676c512592640d8fab6e0c
- Size
  
  741KB
- MD5
  
  401c7ffacebe4dfd82589df06dff9564
- SHA1
  
  97336c6c9523119d43c17682a33028e65d6f125e
- SHA256
  
  8fd6f9c5145827ebe521fa87d557b4e3159eac4070676c512592640d8fab6e0c
- SHA512
  
  1e13f589376eda8108ae06999ece27a9551a4cac170c033b1dd445c4d47958811bec5aa53cbc3b5c820ff3eed1f7304ea9041e47032250c78e6f496d664d117d
- SSDEEP
  
  12288:d+CGrbt6nhUotmYSU4d3sXFYuZZKi93iCGRdhcgPRchZa5T7+kTakfQ:d+n/snhUo8Uu0ZZWqgPmhw5T6U
Score

10^/10

djvu vidar 77a63e71a10ee1d81a28b5c866b75922 discovery persistence ransomware spyware stealer
- Detected Djvu ransomware
- Djvu Ransomware
  Ransomware which is a variant of the STOP family.
  ransomware djvu
- Vidar
  Vidar is an infostealer based on Arkei stealer.
  stealer vidar
- Downloads MZ/PE file
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Loads dropped DLL
- Modifies file permissions
  discovery
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Accesses 2FA software files, possible credential harvesting
  spyware stealer
- Accesses cryptocurrency files/wallets, possible credential harvesting
  spyware
- Adds Run key to start application
  persistence
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Looks up external IP address via web service
  Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext
behavioral1