gandcrab | 2ca4803498d7d375a61bfab2a3a4cf7e0eec41d116e50a838791a55b164e0f8c

Resubmissions

13-01-2025 04:35

250113-e7x5tswlfz 10

13-01-2025 03:52

250113-ee43nsvjby 10

12-01-2025 15:57

250112-tealdsymgt 10

12-01-2025 15:53

250112-tbnc3s1mhn 10

Analysis

max time kernel
140s
max time network
152s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-01-2025 15:53

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Malware-1-master/crb.exe
Size

139KB
MD5

24275604649ac0abafe99b981b914fbc
SHA1

818b0e3018ad27be9887e9e5f4ef1971f422652c
SHA256

4b5fe7497864d07f78af15fa3e1aa3702b303b89f9644624871d83dd0f484749
SHA512

008ef045724963d6ae3b845a6c3de8ebb6682b0f4b8ea77c2d35e2193596b78f0092183de0a88a34f7dde4e71abbc129b2f0f00fd8469801fff66f1b8390b6c8
SSDEEP

1536:JLMVCWvZ8URtqOz3d+1Qs6H9Mk2e3E2avMWC3yMgYxf6+okbdWsWjcdpKCaIxWzX:VM9ntZ3s1QJdnU2SQdf64ZZ8CaIxWec

Score

10^/10

gandcrab backdoor credential_access defense_evasion discovery execution impact ransomware spyware stealer

Malware Config

Extracted

Path

F:\$RECYCLE.BIN\QQDFUAYPNG-DECRYPT.txt

Ransom Note

---= 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: .QQDFUAYPNG 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/cc65a1e1effaa1c4 | 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/cc65a1e1effaa1c4

Signatures

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab
Gandcrab family
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 (282) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware
Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
credential_access stealer

Windows Credential Manager
T1555.004

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\QQDFUAYPNG-DECRYPT.txt	crb.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\effaa628effaa1c374.lock	crb.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

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

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

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\pidor.bmp"	crb.exe

Drops file in Program Files directory 40 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\RepairEdit.nfo	crb.exe
File opened for modification	C:\Program Files\UpdateFind.ps1	crb.exe
File created	C:\Program Files (x86)\QQDFUAYPNG-DECRYPT.txt	crb.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\QQDFUAYPNG-DECRYPT.txt	crb.exe
File opened for modification	C:\Program Files\DebugPing.csv	crb.exe
File opened for modification	C:\Program Files\CopySend.ex_	crb.exe
File opened for modification	C:\Program Files\FormatCheckpoint.crw	crb.exe
File opened for modification	C:\Program Files\LockPush.bin	crb.exe
File opened for modification	C:\Program Files\CompareConvertTo.rar	crb.exe
File opened for modification	C:\Program Files\ImportResolve.dwg	crb.exe
File opened for modification	C:\Program Files\RedoJoin.mp4	crb.exe
File opened for modification	C:\Program Files\RestoreUnpublish.xls	crb.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\effaa628effaa1c374.lock	crb.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\QQDFUAYPNG-DECRYPT.txt	crb.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\effaa628effaa1c374.lock	crb.exe
File opened for modification	C:\Program Files\CompareResume.AAC	crb.exe
File created	C:\Program Files\effaa628effaa1c374.lock	crb.exe
File opened for modification	C:\Program Files\InvokeInitialize.xhtml	crb.exe
File opened for modification	C:\Program Files\LockUnpublish.vstm	crb.exe
File opened for modification	C:\Program Files\SearchAdd.M2V	crb.exe
File opened for modification	C:\Program Files\ShowExit.bin	crb.exe
File opened for modification	C:\Program Files\SuspendResume.mht	crb.exe
File created	C:\Program Files (x86)\effaa628effaa1c374.lock	crb.exe
File created	C:\Program Files\QQDFUAYPNG-DECRYPT.txt	crb.exe
File opened for modification	C:\Program Files\ConfirmInitialize.vsd	crb.exe
File opened for modification	C:\Program Files\EnableInvoke.ppt	crb.exe
File opened for modification	C:\Program Files\MovePop.ram	crb.exe
File opened for modification	C:\Program Files\MoveSet.potm	crb.exe
File opened for modification	C:\Program Files\ReadSelect.001	crb.exe
File opened for modification	C:\Program Files\RepairExport.hta	crb.exe
File opened for modification	C:\Program Files\RestoreAssert.mpp	crb.exe
File opened for modification	C:\Program Files\CompressSave.xps	crb.exe
File opened for modification	C:\Program Files\GetConvert.mpg	crb.exe
File opened for modification	C:\Program Files\MergeStart.mpe	crb.exe
File opened for modification	C:\Program Files\RegisterExit.mpg	crb.exe
File opened for modification	C:\Program Files\RequestInstall.m1v	crb.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\QQDFUAYPNG-DECRYPT.txt	crb.exe
File opened for modification	C:\Program Files\DisablePing.htm	crb.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\effaa628effaa1c374.lock	crb.exe
File opened for modification	C:\Program Files\RestartMove.TTS	crb.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	crb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmic.exe

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	crb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	crb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	crb.exe

Modifies system certificate store 2 TTPs 9 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\7E784A101C8265CC2DE1F16D47B440CAD90A1945	crb.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	crb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8	crb.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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	crb.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\7E784A101C8265CC2DE1F16D47B440CAD90A1945\Blob = 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	crb.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\7E784A101C8265CC2DE1F16D47B440CAD90A1945\Blob = 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	crb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25	crb.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	crb.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	crb.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2364	crb.exe
2364	crb.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2996	wmic.exe
Token: SeSecurityPrivilege	2996	wmic.exe
Token: SeTakeOwnershipPrivilege	2996	wmic.exe
Token: SeLoadDriverPrivilege	2996	wmic.exe
Token: SeSystemProfilePrivilege	2996	wmic.exe
Token: SeSystemtimePrivilege	2996	wmic.exe
Token: SeProfSingleProcessPrivilege	2996	wmic.exe
Token: SeIncBasePriorityPrivilege	2996	wmic.exe
Token: SeCreatePagefilePrivilege	2996	wmic.exe
Token: SeBackupPrivilege	2996	wmic.exe
Token: SeRestorePrivilege	2996	wmic.exe
Token: SeShutdownPrivilege	2996	wmic.exe
Token: SeDebugPrivilege	2996	wmic.exe
Token: SeSystemEnvironmentPrivilege	2996	wmic.exe
Token: SeRemoteShutdownPrivilege	2996	wmic.exe
Token: SeUndockPrivilege	2996	wmic.exe
Token: SeManageVolumePrivilege	2996	wmic.exe
Token: 33	2996	wmic.exe
Token: 34	2996	wmic.exe
Token: 35	2996	wmic.exe
Token: SeIncreaseQuotaPrivilege	2996	wmic.exe
Token: SeSecurityPrivilege	2996	wmic.exe
Token: SeTakeOwnershipPrivilege	2996	wmic.exe
Token: SeLoadDriverPrivilege	2996	wmic.exe
Token: SeSystemProfilePrivilege	2996	wmic.exe
Token: SeSystemtimePrivilege	2996	wmic.exe
Token: SeProfSingleProcessPrivilege	2996	wmic.exe
Token: SeIncBasePriorityPrivilege	2996	wmic.exe
Token: SeCreatePagefilePrivilege	2996	wmic.exe
Token: SeBackupPrivilege	2996	wmic.exe
Token: SeRestorePrivilege	2996	wmic.exe
Token: SeShutdownPrivilege	2996	wmic.exe
Token: SeDebugPrivilege	2996	wmic.exe
Token: SeSystemEnvironmentPrivilege	2996	wmic.exe
Token: SeRemoteShutdownPrivilege	2996	wmic.exe
Token: SeUndockPrivilege	2996	wmic.exe
Token: SeManageVolumePrivilege	2996	wmic.exe
Token: 33	2996	wmic.exe
Token: 34	2996	wmic.exe
Token: 35	2996	wmic.exe
Token: SeBackupPrivilege	2860	vssvc.exe
Token: SeRestorePrivilege	2860	vssvc.exe
Token: SeAuditPrivilege	2860	vssvc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2996	2364	crb.exe	31
PID 2364 wrote to memory of 2996	2364	crb.exe	31
PID 2364 wrote to memory of 2996	2364	crb.exe	31
PID 2364 wrote to memory of 2996	2364	crb.exe	31

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\Malware-1-master\crb.exe
"C:\Users\Admin\AppData\Local\Temp\Malware-1-master\crb.exe"
1⤵
- Drops startup file
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Windows\SysWOW64\wbem\wmic.exe
  "C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2996

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Subvert Trust Controls

T1553

Install Root Certificate

T1553.004

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Windows Credential Manager

T1555.004

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Inhibit System Recovery

T1490

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

Filesize
1KB

MD5
a266bb7dcc38a562631361bbf61dd11b

SHA1
3b1efd3a66ea28b16697394703a72ca340a05bd5

SHA256
df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

SHA512
0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
6bf819a5a18a4dcccfb36b3915878f58

SHA1
ce3c7a2f1628eb77f5dce738cc2312d833e2e818

SHA256
ea775a84a86f5cf3b186d495242835149a82f6dc519586a3304751c7620ff52e

SHA512
b3cba014697e77ce0f162790c5266c45c9f3c992dd1cf7e8fb03f59f15c93de9c719e34567216be66b7f186866cb8b17c806c4ee45ae89b574834ae4fc7fa306

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

Filesize
242B

MD5
602e835fa17ec84ceb41027e06f00369

SHA1
58c09866cf75570a90f77b5b4aff2c7a639bf46f

SHA256
a8c572a4fb354db15b1105ec8d7a6f60cc1e6d0106e55a324cd24cf467f6ef2a

SHA512
7c29497bf4b7bd38aa0a782993eb447578184b8b4c21e26903d1284a8d7d50c8555f355f20fffed9d2f81600fb94213924c83eba614159bc102c8fbfcdbfa914

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabC6F9.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarC7B7.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
F:\$RECYCLE.BIN\QQDFUAYPNG-DECRYPT.txt

Filesize
8KB

MD5
7f17cc24dead42c2aa69a7a7ee5e8d63

SHA1
d1a5ace74d183149c67cbf60381ced3f82b15dfe

SHA256
7f38e7f5862f8c9e11ddf9a468a30848f1557bc93358b857c701ea19ae879a37

SHA512
9f78827e5e38ee7773572268f6df16ec2f588c09e530566c62eb57932d208433835577e9b771d1a6a3af54893065d0b4eb7d6ff667ba834b74d7b46c2048e90e

Download Submit