gandcrab | 5b731e23be406f4b0e0908bccfba25798fa5fff5695191de760fe385a538688b

Analysis

max time kernel
1791s
max time network
1563s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
20-07-2024 14:23

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General

Target

farting poop sex ransomware.exe
Size

190KB
MD5

2bebc43247cc29bc75e91f0f6f5eb05e
SHA1

b11e21dc35751a26fbc8304187b663ee3ae15676
SHA256

a1c01cc7189609f84e71d6758c5837fc118ce3d0ed05b009fc29d90e59cc6fd3
SHA512

ffc07134cb26836c245b2d3d2dfb4bad35d2893d72cf41f179fbc6aba31475fb727d0462ea2f77f7d31da5ce94930017ffa30d92ccbfdaf4f8144fc87f28440f
SSDEEP

3072:8hZQj6bmfjN9StAd1YO8sKI+Lj+dW4LBIxB+NK6AK89:56eNYI1YO89fnhgK6BY

Score

10^/10

gandcrab backdoor defense_evasion execution impact ransomware spyware stealer

Malware Config

Extracted

Path

F:\$RECYCLE.BIN\S-1-5-21-2958949473-3205530200-1453100116-1000\GRTNMJFJ-MANUAL.txt

Family

gandcrab

Ransom Note

---= GANDCRAB V5.2 =--- ***********************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: .GRTNMJFJ 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/e6da197513c00a4 | 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---

URLs

http://gandcrabmfe6mnef.onion/e6da197513c00a4

Signatures

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047
Renames multiple (277) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Drops startup file 2 IoCs

Processes:

farting poop sex ransomware.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\GRTNMJFJ-MANUAL.txt	farting poop sex ransomware.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\13c074913c00a511c.lock	farting poop sex ransomware.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

farting poop sex ransomware.exe

description	ioc	process
File opened (read-only)	\??\Y:	farting poop sex ransomware.exe
File opened (read-only)	\??\I:	farting poop sex ransomware.exe
File opened (read-only)	\??\L:	farting poop sex ransomware.exe
File opened (read-only)	\??\Q:	farting poop sex ransomware.exe
File opened (read-only)	\??\P:	farting poop sex ransomware.exe
File opened (read-only)	\??\S:	farting poop sex ransomware.exe
File opened (read-only)	\??\U:	farting poop sex ransomware.exe
File opened (read-only)	\??\A:	farting poop sex ransomware.exe
File opened (read-only)	\??\G:	farting poop sex ransomware.exe
File opened (read-only)	\??\O:	farting poop sex ransomware.exe
File opened (read-only)	\??\T:	farting poop sex ransomware.exe
File opened (read-only)	\??\V:	farting poop sex ransomware.exe
File opened (read-only)	\??\W:	farting poop sex ransomware.exe
File opened (read-only)	\??\X:	farting poop sex ransomware.exe
File opened (read-only)	\??\K:	farting poop sex ransomware.exe
File opened (read-only)	\??\M:	farting poop sex ransomware.exe
File opened (read-only)	\??\R:	farting poop sex ransomware.exe
File opened (read-only)	\??\J:	farting poop sex ransomware.exe
File opened (read-only)	\??\N:	farting poop sex ransomware.exe
File opened (read-only)	\??\Z:	farting poop sex ransomware.exe
File opened (read-only)	\??\B:	farting poop sex ransomware.exe
File opened (read-only)	\??\E:	farting poop sex ransomware.exe
File opened (read-only)	\??\H:	farting poop sex ransomware.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

farting poop sex ransomware.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\bxmeoengtf.bmp"	farting poop sex ransomware.exe

Drops file in Program Files directory 42 IoCs

Processes:

farting poop sex ransomware.exe

description	ioc	process
File opened for modification	C:\Program Files\ConvertFromInstall.mpv2	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\RequestConvertTo.zip	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\RequestUnregister.xhtml	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\ResolveSave.AAC	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\StopEdit.mht	farting poop sex ransomware.exe
File created	C:\Program Files (x86)\GRTNMJFJ-MANUAL.txt	farting poop sex ransomware.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\GRTNMJFJ-MANUAL.txt	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\CompareNew.pps	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\SwitchOpen.htm	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\AddCopy.wmv	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\ApproveSwitch.xlsx	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\StopSwitch.wmv	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\UnprotectMerge.midi	farting poop sex ransomware.exe
File created	C:\Program Files\GRTNMJFJ-MANUAL.txt	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\ConvertToUnregister.midi	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\ResetSwitch.easmx	farting poop sex ransomware.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\GRTNMJFJ-MANUAL.txt	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\ConvertAdd.png	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\FormatWait.vdw	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\SuspendInvoke.001	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\WatchRequest.vdw	farting poop sex ransomware.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\GRTNMJFJ-MANUAL.txt	farting poop sex ransomware.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\13c074913c00a511c.lock	farting poop sex ransomware.exe
File created	C:\Program Files\13c074913c00a511c.lock	farting poop sex ransomware.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\13c074913c00a511c.lock	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\InvokeStart.mp3	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\ExportUnregister.xsl	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\GetReceive.js	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\ImportComplete.DVR-MS	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\InitializeEnter.rar	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\OpenConnect.mpp	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\RegisterFormat.3gp2	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\UnprotectStep.ADT	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\DismountUninstall.php	farting poop sex ransomware.exe
File created	C:\Program Files (x86)\13c074913c00a511c.lock	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\DisableResume.ppt	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\InvokeApprove.wdp	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\MountSwitch.bmp	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\ReceiveApprove.rtf	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\RemoveReceive.nfo	farting poop sex ransomware.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\13c074913c00a511c.lock	farting poop sex ransomware.exe
File opened for modification	C:\Program Files\CompareConnect.DVR-MS	farting poop sex ransomware.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

farting poop sex ransomware.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	farting poop sex ransomware.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	farting poop sex ransomware.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	farting poop sex ransomware.exe

Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1070.004

Inhibit System Recovery
T1490

Direct Volume Access
T1006

Processes:

vssadmin.exe

pid process

1588 vssadmin.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

farting poop sex ransomware.exe

pid process

2748 farting poop sex ransomware.exe
2748 farting poop sex ransomware.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1704 vssvc.exe
Token: SeRestorePrivilege 1704 vssvc.exe
Token: SeAuditPrivilege 1704 vssvc.exe

pid	process
1588	vssadmin.exe

pid	process
2748	farting poop sex ransomware.exe
2748	farting poop sex ransomware.exe

description	pid	process
Token: SeBackupPrivilege	1704	vssvc.exe
Token: SeRestorePrivilege	1704	vssvc.exe
Token: SeAuditPrivilege	1704	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

farting poop sex ransomware.execmd.exe

description	pid	process	target process
PID 2748 wrote to memory of 664	2748	farting poop sex ransomware.exe	cmd.exe
PID 2748 wrote to memory of 664	2748	farting poop sex ransomware.exe	cmd.exe
PID 2748 wrote to memory of 664	2748	farting poop sex ransomware.exe	cmd.exe
PID 2748 wrote to memory of 664	2748	farting poop sex ransomware.exe	cmd.exe
PID 664 wrote to memory of 1588	664	cmd.exe	vssadmin.exe
PID 664 wrote to memory of 1588	664	cmd.exe	vssadmin.exe
PID 664 wrote to memory of 1588	664	cmd.exe	vssadmin.exe
PID 664 wrote to memory of 1588	664	cmd.exe	vssadmin.exe

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\farting poop sex ransomware.exe
"C:\Users\Admin\AppData\Local\Temp\farting poop sex ransomware.exe"
1⤵
- Drops startup file
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2748

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c vssadmin delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:664

C:\Windows\SysWOW64\vssadmin.exe
vssadmin delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:1588

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Privilege Escalation

Defense Evasion

Direct Volume Access

T1006

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

F:\$RECYCLE.BIN\S-1-5-21-2958949473-3205530200-1453100116-1000\GRTNMJFJ-MANUAL.txt

Filesize
8KB

MD5
cc800b552237d7582dacdceeef47d09d

SHA1
6e4241c0706e07078eab38d9bc48763273a7d730

SHA256
8b927a9e3984b9ae92b200061c556ca73382df2c66fde04b19edfdebbd59cea3

SHA512
6681103785aba4b10ef2402ee98c7c5dac8b4038f203792ce086c09a4f23698a4d42c016f37ad0f5823757e6680a039a98f4b90474d1fe23fa92b198f992604a

Download Submit
memory/2748-0-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2748-1-0x00000000001C0000-0x00000000001E9000-memory.dmp

Filesize
164KB

Download
memory/2748-2-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2748-723-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2748-725-0x00000000001C0000-0x00000000001E9000-memory.dmp

Filesize
164KB

Download
memory/2748-726-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download