djvu | 34b03e83e1237b0c3381015bebbaf25f40d938cface06b6c6bf0a9529dce44ae

General

Target

34b03e83e1237b0c3381015bebbaf25f40d938cface06b6c6bf0a9529dce44ae
Size

270KB
Sample

221009-vcpg7shcd7
MD5

65a246928c141f08acf59ac236e57557
SHA1

cd8736526dc89d1490c06314e0ecdfa8d5d92e24
SHA256

34b03e83e1237b0c3381015bebbaf25f40d938cface06b6c6bf0a9529dce44ae
SHA512

3338a05d8ebd6310af37bbad120f0fc3f85c9ba0064b21e0792c3f06cbd9fa32899c153a3d7b06780c28d74ae5d344bb6af413ddba8286860ec69126acf91c33
SSDEEP

3072:rXJ4lldCSP59+hv5lNlX4c0RAQcklyssJqHkIIyf6AIX/M/h3qpZa9uD6Vdyhkhb:DCdGhrNlXf0RTLsJqHwj/rwVfquS

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
  
  34b03e83e1237b0c3381015bebbaf25f40d938cface06b6c6bf0a9529dce44ae
- Size
  
  270KB
- MD5
  
  65a246928c141f08acf59ac236e57557
- SHA1
  
  cd8736526dc89d1490c06314e0ecdfa8d5d92e24
- SHA256
  
  34b03e83e1237b0c3381015bebbaf25f40d938cface06b6c6bf0a9529dce44ae
- SHA512
  
  3338a05d8ebd6310af37bbad120f0fc3f85c9ba0064b21e0792c3f06cbd9fa32899c153a3d7b06780c28d74ae5d344bb6af413ddba8286860ec69126acf91c33
- SSDEEP
  
  3072:rXJ4lldCSP59+hv5lNlX4c0RAQcklyssJqHkIIyf6AIX/M/h3qpZa9uD6Vdyhkhb:DCdGhrNlXf0RTLsJqHwj/rwVfquS
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