Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
16/10/2026, 03:45
General
- Target jaffacakes118_Trojan.NSIS.Inject.rnn.exe
- Size 374KB
- Sample261016-ea2rragy9p
- SHA256 46b6d9d284accad6ed3106eb2651cfbf350242523ff1a41bb0585b47f71e5b06
Malware Config
Extracted
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C:\Users\QOJFZFW-DECRYPT.txt
- ---= GANDCRAB V5.0.4 =--- ***********************UNDER NO CIRCUMSTANCES DO NOT DELETE THIS FILE, UNTIL ALL YOUR DATA IS RECOVERED*********************** *****FAILING TO DO SO, WILL RESULT IN YOUR SYSTEM CORRUPTION, IF THERE ARE DECRYPTION ERRORS***** Attention! All your files, documents, photos, databases and other important files are encrypted and have the extension: .QOJFZFW The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files. The server with your key is in a closed network TOR. You can get there by the following ways: ---------------------------------------------------------------------------------------- | 0. Download Tor browser - https://www.torproject.org/ | 1. Install Tor browser | 2. Open Tor Browser | 3. Open link in TOR browser: http://gandcrabmfe6mnef.onion/c37ca5914ffe40ac | 4. Follow the instructions on this page ---------------------------------------------------------------------------------------- On our page you will see instructions on payment and get the opportunity to decrypt 1 file for free. ATTENTION! IN ORDER TO PREVENT DATA DAMAGE: * DO NOT MODIFY ENCRYPTED FILES * DO NOT CHANGE DATA BELOW ---BEGIN GANDCRAB KEY--- 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 ---END GANDCRAB KEY--- ---BEGIN PC DATA--- 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 ---END PC DATA---
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http://gandcrabmfe6mnef.onion/c37ca5914ffe40ac
Signatures
- Family: Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
- Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
- Renames multiple (659) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Creates a file in the Startup directory 1 TTPs 2 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
- Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
- Loads dropped DLL 2 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Sets desktop wallpaper using registry 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 40 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 45 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.NSIS.Inject.rnn.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.NSIS.Inject.rnn.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.NSIS.Inject.rnn.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.NSIS.Inject.rnn.exe"2⤵
- Checks computer location settings
- Creates a file in the Startup directory
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\wbem\wmic.exe"C:\Windows\system32\wbem\wmic.exe" shadowcopy delete3⤵
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
gladiator.dll
System.dll
BackupUnpublish.potm
CompleteBlock.mp2
QOJFZFW-DECRYPT.txt
memory/1476-20-0x0000000000400000-0x0000000000428000-memory.dmp
memory/1476-19-0x0000000000400000-0x0000000000428000-memory.dmp
memory/1476-21-0x0000000000400000-0x0000000000428000-memory.dmp
memory/1476-22-0x0000000000400000-0x0000000000428000-memory.dmp
memory/1476-37-0x0000000000400000-0x0000000000428000-memory.dmp
memory/1476-2210-0x0000000000400000-0x0000000000428000-memory.dmp
memory/1476-2219-0x0000000000400000-0x0000000000428000-memory.dmp