djvu | 538d1b6595c765bf7643cc64f25d47bd23a0bd05ca13936581c112f3e1c8d22d

General

Target

538d1b6595c765bf7643cc64f25d47bd23a0bd05ca13936581c112f3e1c8d22d
Size

765KB
Sample

231107-atrnnsad84
MD5

232da3fb750045cfa02f554033bd7aea
SHA1

03a748482c82de1b2012dfdbfe1febd192837bf2
SHA256

538d1b6595c765bf7643cc64f25d47bd23a0bd05ca13936581c112f3e1c8d22d
SHA512

85b4363dc454e6fc607021fafe07cbf523a17976fa6264d4400f662e99cdd2b05c8bb462e8aaa38468147d3d5cf13584501b0a3a3a9d5171067107596b09ed42
SSDEEP

12288:plfLWnE8EzbW3NqgONkRPmPVMWdJT/M6szdKsy1A5FVQQRTYMFgRIx:plancbW3N+ktQJT/M6pGRlgSx

Score

10^/10

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/raud/get.php

Attributes

extension
.yzoo
offline_id
x2zqmFxw8ydx3wkiEeNayQ64Eyg2U5MS31sTegt1
payload_url
http://colisumy.com/dl/build2.exe

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

Targets

- Target
  
  538d1b6595c765bf7643cc64f25d47bd23a0bd05ca13936581c112f3e1c8d22d
- Size
  
  765KB
- MD5
  
  232da3fb750045cfa02f554033bd7aea
- SHA1
  
  03a748482c82de1b2012dfdbfe1febd192837bf2
- SHA256
  
  538d1b6595c765bf7643cc64f25d47bd23a0bd05ca13936581c112f3e1c8d22d
- SHA512
  
  85b4363dc454e6fc607021fafe07cbf523a17976fa6264d4400f662e99cdd2b05c8bb462e8aaa38468147d3d5cf13584501b0a3a3a9d5171067107596b09ed42
- SSDEEP
  
  12288:plfLWnE8EzbW3NqgONkRPmPVMWdJT/M6szdKsy1A5FVQQRTYMFgRIx:plancbW3N+ktQJT/M6pGRlgSx
Score

10^/10

djvu discovery persistence ransomware spyware stealer
- Detected Djvu ransomware
- Djvu Ransomware
  Ransomware which is a variant of the STOP family.
  ransomware djvu
- 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 data files stored by FTP clients
  Tries to access configuration files associated with programs like FileZilla.
  spyware stealer
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- 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