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Detectable Ransomware GandCrab-5
Ransomware Research
GandCrab-5 Ransomware
GandCrab-5 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on September 1, 2018, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- GandCrab-5
- First Seen
- September 1, 2018
How GandCrab-5 Ransomware Works
Targeted Files
https://app.any.run/tasks/1084c686-2699-40c1-ae9e-02eb3f690ba9/ https://app.any.run/tasks/1edf6703-6350-46fe-82e2-737f003fb127/ https://www.bleepingcomputer.com/forums/t/669484/gandcrab-ransomware-help-support-topic-gdcb-crab-crab-decrypttxt/page-18#entry4581956
File Encryption Patterns
GandCrab-5 modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
./\.[A-Z]{5}$/
./\.[A-Z]{5,10}$/
Ransom Note and Payment Demands
After encrypting files, GandCrab-5 displays ransom notes demanding payment for file recovery:
/^[A-Z]{5}-DECRYPT\.html$/
Ransom message:
notes/IHBDH-DECRYPT.html
Note locations:
EveryFolder
/^[A-Z]{5,10}-DECRYPT\.txt$/
Ransom message:
notes/RRGMSNX-DECRYPT.txt
Note locations:
EveryFolder
/^[A-Z]{5,10}-MANUAL\.txt$/
Ransom message:
notes/LBNPTIWL-MANUAL.txt
Note locations:
EveryFolder
Technical Indicators
Associated Executable Files
The following executable files are associated with GandCrab-5 ransomware:
penis.exe
gft.exe
myfile.exe
o.exe
203961046629696.exe
Involve.exe
график замены водосчетчиков.scr
Резюме.scr
счет за Аренду за сентябрь.scr
Товарные накладные.scr
Protection.exe
data.bin_refresh1
UCBCV4DG.exe
Emergencyexitmap.pdf[1].bin
Emergencyexitmap.exe
ELP977AS.exe
53I58WVY.exe
menu demarrage - raccourci
Menu Demarrage - Raccourci
11111.exe
youwin.exe
SopCast.exe
Crack_Extreme_Sample_Converter.exe
CRACK_SWEET_MIDI_PLAYER.EXE
GstarCAD_64bit.exe
Crack_ABBYY_FineReader.exe
Crack_Flip_PDF_Professional.exe
Elastio Can Help You
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Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This GandCrab-5 ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like GandCrab-5.
Last updated: July 30, 2025