djvu | 596be482747a9c9fe559196b0a389de92eeeea2b305777c2d1800f9c014c22ce

General

Target

3edbc9c7553dad54925210b7f9ece36c.exe
Size

301KB
Sample

231219-z4frladdcr
MD5

3edbc9c7553dad54925210b7f9ece36c
SHA1

57014d3163d27b21075c37d993c14a56cf7208da
SHA256

596be482747a9c9fe559196b0a389de92eeeea2b305777c2d1800f9c014c22ce
SHA512

2944c936c953478fdc496b90428296080f49f91de136b36c88ef95b330ad8300d560291d7d14b98e168b8f589482e6f4cb0ad08102c2f16721d0d54f7c1773b1
SSDEEP

6144:jTisyjd2Gdq45dCnn0jiXXg/RHnpVeVs4:/VGYGs45dCnnFXkVeu

Score

10^/10

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32

Extracted

Family

djvu

C2

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

Attributes

extension
.loqw
offline_id
NrqpaQRhQqq5l2tBPp1QS34I3ME2IKsAlZ0A9pt1
payload_url
http://brusuax.com/dl/build2.exe
http://zexeq.com/files/1/build3.exe
ransomnote
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rsa_pubkey.plain

Targets

- Target
  
  3edbc9c7553dad54925210b7f9ece36c.exe
- Size
  
  301KB
- MD5
  
  3edbc9c7553dad54925210b7f9ece36c
- SHA1
  
  57014d3163d27b21075c37d993c14a56cf7208da
- SHA256
  
  596be482747a9c9fe559196b0a389de92eeeea2b305777c2d1800f9c014c22ce
- SHA512
  
  2944c936c953478fdc496b90428296080f49f91de136b36c88ef95b330ad8300d560291d7d14b98e168b8f589482e6f4cb0ad08102c2f16721d0d54f7c1773b1
- SSDEEP
  
  6144:jTisyjd2Gdq45dCnn0jiXXg/RHnpVeVs4:/VGYGs45dCnnFXkVeu
Score

10^/10

djvu rhadamanthys smokeloader zgrat pub1 backdoor discovery evasion persistence ransomware rat stealer themida trojan
- Detect ZGRat V1
- Detected Djvu ransomware
- Djvu Ransomware
  Ransomware which is a variant of the STOP family.
  ransomware djvu
- 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
- ZGRat
  ZGRat is remote access trojan written in C#.
  rat zgrat
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
  evasion
- Downloads MZ/PE file
- Checks BIOS information in registry
  BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Deletes itself
- Executes dropped EXE
- Loads dropped DLL
- Modifies file permissions
  discovery
- Themida packer
  Detects Themida, an advanced Windows software protection system.
  themida
- Adds Run key to start application
  persistence
- Checks whether UAC is enabled
  evasion trojan
- Looks up external IP address via web service
  Uses a legitimate IP lookup service to find the infected system's external IP.
- AutoIT Executable
  AutoIT scripts compiled to PE executables.
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
behavioral1 behavioral2