djvu | ac339b6402a135480e19d9da23b5e02e3af605b4d70104b6dbb7bdbbe5e86570

General

Target

file.exe
Size

187KB
Sample

230212-np187sdf42
MD5

bf216a294f44d0e6ab8cf375867d0ccc
SHA1

0f2c939a394bed4166500e37dfaf89c18211296a
SHA256

ac339b6402a135480e19d9da23b5e02e3af605b4d70104b6dbb7bdbbe5e86570
SHA512

4a55719d4f7fd8af8d591e54f9d383fc2274a4b4d7dab31b3490248703b7b1a76e66005507ebf8ed3140d1a142ab799f7f72682488f6b5f0a0c90ea154506c56
SSDEEP

3072:Qbzk+FsRRseujxuEn0ej55qLI6Cj0iDcaQjGFr4pSEXi:yAgew6eV5qLJs06ca2GFudX

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.vvoo
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
  
  file.exe
- Size
  
  187KB
- MD5
  
  bf216a294f44d0e6ab8cf375867d0ccc
- SHA1
  
  0f2c939a394bed4166500e37dfaf89c18211296a
- SHA256
  
  ac339b6402a135480e19d9da23b5e02e3af605b4d70104b6dbb7bdbbe5e86570
- SHA512
  
  4a55719d4f7fd8af8d591e54f9d383fc2274a4b4d7dab31b3490248703b7b1a76e66005507ebf8ed3140d1a142ab799f7f72682488f6b5f0a0c90ea154506c56
- SSDEEP
  
  3072:Qbzk+FsRRseujxuEn0ej55qLI6Cj0iDcaQjGFr4pSEXi:yAgew6eV5qLJs06ca2GFudX
Score

10^/10

smokeloader backdoor trojan djvu rhadamanthys vidar 19 collection discovery persistence ransomware spyware stealer vmprotect
- Detect rhadamanthys stealer shellcode
- Detected Djvu ransomware
- Detects Smokeloader packer
- Djvu Ransomware
  Ransomware which is a variant of the STOP family.
  ransomware djvu
- Process spawned unexpected child process
  This typically indicates the parent process was compromised via an exploit or macro.
- Rhadamanthys
  Rhadamanthys is an info stealer written in C++ first seen in August 2022.
  stealer rhadamanthys
- SmokeLoader
  Modular backdoor trojan in use since 2014.
  trojan backdoor smokeloader
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Vidar
  Vidar is an infostealer based on Arkei stealer.
  stealer vidar
- Blocklisted process makes network request
- 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
- VMProtect packed file
  Detects executables packed with VMProtect commercial packer.
  vmprotect
- Accesses Microsoft Outlook profiles
  collection
- 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 behavioral2