djvu | 82db22971fa377c76e92a0ffaca4d966088225c1f38bea49a0eb744b62c378c3

General

Target

sample (9).zip
Size

652KB
Sample

240406-d5kahsae56
MD5

806ddb4edca680080323a8b709b82e29
SHA1

688eb29e5829a4a9563525f088dce82d4b52bfc2
SHA256

82db22971fa377c76e92a0ffaca4d966088225c1f38bea49a0eb744b62c378c3
SHA512

4bb6ad6c32f0e4576a985b55429395aa1df1e12c73ea3fff1ca2e1bd7ce302f08919713ec74e71a0ec097e97b166b29b261c63f4c2de928758f4cca4496edb2e
SSDEEP

12288:gZ5JaxNKZSFHV7c2R1R/zmq7U1ge0AQW6mzqQ4oWo5qRs/xfQ0:gZvan/7c2RrH7UyUQW64qQ4oWoKs/xfz

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.uajs
offline_id
Jx0i3k2ogR5cKxX1evmz0Ex7TUxOUlnbh2dvnIt1
payload_url
http://sdfjhuz.com/dl/build2.exe
http://sajdfue.com/files/1/build3.exe
ransomnote
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rsa_pubkey.plain

Targets

- Target
  
  sample.mlw
- Size
  
  736KB
- MD5
  
  5a1804824fc4a96108c80395a5125e7a
- SHA1
  
  e115abc31a19978a02f290bb0a6b5edd59914423
- SHA256
  
  73b0acba1d279c5810afb1e0d28a71c9625f722014bab94e0f957d660e801e49
- SHA512
  
  25f4fd5adfa9ecca55b2310848a842c7737d67368a35a36c60291eb27c4401b0e882eb866c193bf31d8cfae4ef452f917a1bf66713b1b89684476c4bb427ddd7
- SSDEEP
  
  12288:pTeD/3svKWr7TRSvvMYswG7hdGd1+xcI2YG0PDPhWTuFpzNm7KJJ8V449HL2dV:pTysCW7MHtehr8YG2muFpz2PP9HLoV
Score

10^/10

djvu ffdroider microsoft discovery evasion persistence phishing ransomware spyware stealer trojan upx
- Detected Djvu ransomware
- Djvu Ransomware
  Ransomware which is a variant of the STOP family.
  ransomware djvu
- FFDroider
  Stealer targeting social media platform users first seen in April 2022.
  stealer ffdroider
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Renames multiple (180) files with added filename extension
  This suggests ransomware activity of encrypting all the files on the system.
  ransomware
- Creates new service(s)
  persistence
- Downloads MZ/PE file
- Drops file in Drivers directory
- Modifies RDP port number used by Windows
- Sets service image path in registry
  persistence
- Checks BIOS information in registry
  BIOS information is often read in order to detect sandboxing environments.
- 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
- Registers COM server for autorun
  persistence
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- 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
- Checks whether UAC is enabled
  evasion trojan
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- Looks up external IP address via web service
  Uses a legitimate IP lookup service to find the infected system's external IP.
- Detected potential entity reuse from brand microsoft.
  phishing microsoft
- Drops file in System32 directory
- Suspicious use of SetThreadContext
behavioral1