djvu | febb45431cb6cb65838b59d18b4f847f1da08905937bdb607da2d87ea9da4634

General

Target

febb45431cb6cb65838b59d18b4f847f1da08905937bdb607da2d87ea9da4634
Size

697KB
Sample

230212-bjsnnagh6v
MD5

d533c5e231dbc7e876a7e4fcb8c80de4
SHA1

37f75140be5f7753ebc1c3d346b1d55d86a4b63e
SHA256

febb45431cb6cb65838b59d18b4f847f1da08905937bdb607da2d87ea9da4634
SHA512

56b44cfbd878e08ae165f18daf0e2ba2f0736ce57e7f47662c14a362246570e50d6b272233c540718c9270795f909a9b468e3a6cbabe0ef60af4cffdb9d64361
SSDEEP

12288:8GQz8polK9uExtJLY5KXBPvdf5kE/IMWW8bHfPiFNqixvbCfq:3BpojExtJ8olelnHyFNqiV

Score

10^/10

djvu vidar 19 discovery persistence ransomware spyware stealer

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.vvmm
offline_id
9c20OtJsXdFeF07b1IeFK5ERGv1zIb659YG380t1
payload_url
http://uaery.top/dl/build2.exe

http://bihsy.com/files/1/build3.exe
ransomnote
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rsa_pubkey.plain

Extracted

Family

vidar

Version

2.4

Botnet

19

Attributes

profile_id
19

Targets

- Target
  
  febb45431cb6cb65838b59d18b4f847f1da08905937bdb607da2d87ea9da4634
- Size
  
  697KB
- MD5
  
  d533c5e231dbc7e876a7e4fcb8c80de4
- SHA1
  
  37f75140be5f7753ebc1c3d346b1d55d86a4b63e
- SHA256
  
  febb45431cb6cb65838b59d18b4f847f1da08905937bdb607da2d87ea9da4634
- SHA512
  
  56b44cfbd878e08ae165f18daf0e2ba2f0736ce57e7f47662c14a362246570e50d6b272233c540718c9270795f909a9b468e3a6cbabe0ef60af4cffdb9d64361
- SSDEEP
  
  12288:8GQz8polK9uExtJLY5KXBPvdf5kE/IMWW8bHfPiFNqixvbCfq:3BpojExtJ8olelnHyFNqiV
Score

10^/10

djvu vidar 19 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