djvu | 681bb256b967588200393a29cac5b96a3ab81380126c918905fd4a4d1a6651e1

General

Target

file.exe
Size

271KB
Sample

221005-x8cvdsfehm
MD5

e41781d52a6071427b46ce9690f5fe6d
SHA1

7ea6e769900c7a29953a1073cb3eb3f58f3ff8a7
SHA256

681bb256b967588200393a29cac5b96a3ab81380126c918905fd4a4d1a6651e1
SHA512

2ab2fd24e5118789bf2e7d07a64c34faff37aa6b0758b751396253db1e3260e0f8ac76f10c7576454039e4a9bee62595c4000c44ee9110c20e59a39b826f9235
SSDEEP

6144:lHeF1LMeOx+1pF/1MruzbgwughiXwVfUU:l4Ajx+TFGunndidU

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

http://winnlinne.com/lancer/get.php

Attributes

extension
.adww
offline_id
z8lhl4oForVEc7gy9Ra8rSqjYMl3xiFRuIW4not1
payload_url
http://rgyui.top/dl/build2.exe
http://winnlinne.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-g28rVcqA58 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: support@bestyourmail.ch Reserve e-mail address to contact us: datarestorehelp@airmail.cc Your personal ID: 0573Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

54.9

Botnet

517

C2

https://t.me/larsenup

https://ioc.exchange/@zebra54

Attributes

profile_id
517

Targets

- Target
  
  file.exe
- Size
  
  271KB
- MD5
  
  e41781d52a6071427b46ce9690f5fe6d
- SHA1
  
  7ea6e769900c7a29953a1073cb3eb3f58f3ff8a7
- SHA256
  
  681bb256b967588200393a29cac5b96a3ab81380126c918905fd4a4d1a6651e1
- SHA512
  
  2ab2fd24e5118789bf2e7d07a64c34faff37aa6b0758b751396253db1e3260e0f8ac76f10c7576454039e4a9bee62595c4000c44ee9110c20e59a39b826f9235
- SSDEEP
  
  6144:lHeF1LMeOx+1pF/1MruzbgwughiXwVfUU:l4Ajx+TFGunndidU
Score

10^/10

smokeloader backdoor trojan djvu vidar 517 collection discovery persistence ransomware spyware stealer
- Detected Djvu ransomware
- Detects Smokeloader packer
- Djvu Ransomware
  Ransomware which is a variant of the STOP family.
  ransomware djvu
- SmokeLoader
  Modular backdoor trojan in use since 2014.
  trojan backdoor smokeloader
- Vidar
  Vidar is an infostealer based on Arkei stealer.
  stealer vidar
- Downloads MZ/PE file
- Executes dropped EXE
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- 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 Microsoft Outlook profiles
  collection
- 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
- 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.
- Suspicious use of SetThreadContext
behavioral1 behavioral2