djvu | b555c0d2d026f5c33f8bf457c9bd876630305b15391c0d297415eaeb58581ea6

General

Target
b555c0d2d026f5c33f8bf457c9bd876630305b15391c0d297415eaeb58581ea6
Size 752KB
Sample230216-rd8exshe2v
SHA256 b555c0d2d026f5c33f8bf457c9bd876630305b15391c0d297415eaeb58581ea6
MD5 c499017122c5eef4ad7479c5588c9151
SHA1 99f63f8b87fdf5dcb4d2f6983ca750079c16db47
SHA512 5aa0de5c12aa92ff3dfa580c7ed81ad4dc1a234e1324d7c0898b3fa8e4ea552364036f4bef6291a1f95d83029762eccb2bae49b6484cf3eacd08666718e29fc2
SSDEEP 12288:v8qP7BlN32YwePyOynLC8fbOnh+w48kSbjM1bMkLc0uKbTGV5PmlbRPhHJFEEEdn:vdBH3ceCLDb0+wvkwjMxMko0Pb4R4ZHY
MD5 SHA1 SHA512 SSDEEP

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
.hhmm
offline_id
dMMXkgwQTycP13C5xwPbHDSzhx1ZxiPgIMZXewt1
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

2.5

Botnet

19

Attributes

profile_id
19

Targets

- Target
  b555c0d2d026f5c33f8bf457c9bd876630305b15391c0d297415eaeb58581ea6
- Size 752KB
- SHA256 b555c0d2d026f5c33f8bf457c9bd876630305b15391c0d297415eaeb58581ea6
- MD5 c499017122c5eef4ad7479c5588c9151
- SHA1 99f63f8b87fdf5dcb4d2f6983ca750079c16db47
- SHA512 5aa0de5c12aa92ff3dfa580c7ed81ad4dc1a234e1324d7c0898b3fa8e4ea552364036f4bef6291a1f95d83029762eccb2bae49b6484cf3eacd08666718e29fc2
- SSDEEP 12288:v8qP7BlN32YwePyOynLC8fbOnh+w48kSbjM1bMkLc0uKbTGV5PmlbRPhHJFEEEdn:vdBH3ceCLDb0+wvkwjMxMko0Pb4R4ZHY
- MD5 SHA1 SHA512 SSDEEP
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