djvu | f90f2dfd985efbc27fb060e30cbdcd82a3db31c7f124d75b41dd71e8066975c9

General

Target

f90f2dfd985efbc27fb060e30cbdcd82a3db31c7f124d75b41dd71e8066975c9
Size

270KB
Sample

221009-tktlfshdbm
MD5

c1c7a47ae8595bc90d05c9f6513efd83
SHA1

41b8ea756a76d5e711d85ef343ba0185a31603d7
SHA256

f90f2dfd985efbc27fb060e30cbdcd82a3db31c7f124d75b41dd71e8066975c9
SHA512

b98ba84bd8bcb0ab4abe83101c13328b892756bf414d2aa93aaf386fe3ec89169549157759a9d5f3d6133d35637dcac497c120ab3ca50531cf6e06dae382db59
SSDEEP

3072:ikXKkbBFg/C/QQ1r+CCf5tvZzY80vuE4ABBDndZ1YhfAsbGBP8YM/h3qpZa9uD6k:igvFgKr+1zKvu/A3dZ1YhfNErwVfquS

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.towz
offline_id
SSHsHMHGmSIhrz50VnIxLJJX15osxEQY6iXedXt1
payload_url
http://rgyui.top/dl/build2.exe

http://winnlinne.com/files/1/build3.exe
ransomnote
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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
  
  f90f2dfd985efbc27fb060e30cbdcd82a3db31c7f124d75b41dd71e8066975c9
- Size
  
  270KB
- MD5
  
  c1c7a47ae8595bc90d05c9f6513efd83
- SHA1
  
  41b8ea756a76d5e711d85ef343ba0185a31603d7
- SHA256
  
  f90f2dfd985efbc27fb060e30cbdcd82a3db31c7f124d75b41dd71e8066975c9
- SHA512
  
  b98ba84bd8bcb0ab4abe83101c13328b892756bf414d2aa93aaf386fe3ec89169549157759a9d5f3d6133d35637dcac497c120ab3ca50531cf6e06dae382db59
- SSDEEP
  
  3072:ikXKkbBFg/C/QQ1r+CCf5tvZzY80vuE4ABBDndZ1YhfAsbGBP8YM/h3qpZa9uD6k:igvFgKr+1zKvu/A3dZ1YhfNErwVfquS
Score

10^/10

djvu smokeloader vidar 517 backdoor collection discovery persistence ransomware spyware stealer trojan
- 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
- 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