gandcrab | ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23

General

Target

ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
Size

205KB
MD5

97a910c50171124f2cd8cfc7a4f2fa4f
SHA1

3737d782cb64fa92d2c42f3c2857ee2295dc8aa4
SHA256

ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23
SHA512

cb0d9eb3bdeeb533e258473187d6dc17515de7d790fbeb5238e4eb0aeeb793bca8bf1bcda4a1c384cd6a488155e90f08a9e82846a08958c4f53de4b5e57e8844

Score

10^/10

gandcrab backdoor ransomware spyware stealer

Malware Config

Extracted

Path

C:\KRAB-DECRYPT.txt

Ransom Note

---= GANDCRAB V4 =--- Attention! All your files, documents, photos, databases and other important files are encrypted and have the extension: .KRAB 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/8d238d4aa15b504b | 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/8d238d4aa15b504b

Signatures

GandCrab Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3540-114-0x0000000000400000-0x0000000000439000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies extensions of user files 8 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\MountExport.tiff => C:\Users\Admin\Pictures\MountExport.tiff.KRAB	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Users\Admin\Pictures\OutCheckpoint.tiff	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File renamed	C:\Users\Admin\Pictures\OutCheckpoint.tiff => C:\Users\Admin\Pictures\OutCheckpoint.tiff.KRAB	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File renamed	C:\Users\Admin\Pictures\RemoveConvertFrom.raw => C:\Users\Admin\Pictures\RemoveConvertFrom.raw.KRAB	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File renamed	C:\Users\Admin\Pictures\RevokeDeny.crw => C:\Users\Admin\Pictures\RevokeDeny.crw.KRAB	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File renamed	C:\Users\Admin\Pictures\UnblockRestore.tif => C:\Users\Admin\Pictures\UnblockRestore.tif.KRAB	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File renamed	C:\Users\Admin\Pictures\ExpandGroup.tif => C:\Users\Admin\Pictures\ExpandGroup.tif.KRAB	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Users\Admin\Pictures\MountExport.tiff	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe

Drops startup file 2 IoCs

Processes:

ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\KRAB-DECRYPT.txt	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\a15b57aba15b504a612.lock	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.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
T1081

Enumerates connected drives 3 TTPs 24 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:

ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe

description	ioc	process
File opened (read-only)	\??\N:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\R:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\X:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\Z:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\B:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\F:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\I:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\J:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\V:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\Y:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\K:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\P:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\Q:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\S:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\T:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\A:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\G:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\H:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\U:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\O:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\W:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\E:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\L:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened (read-only)	\??\M:	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe

Drops file in Program Files directory 24 IoCs

Processes:

ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe

description	ioc	process
File opened for modification	C:\Program Files\UnregisterLock.dwg	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\JoinReset.rar	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\RegisterSelect.js	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\RestartTest.xml	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\CompressUnblock.png	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\DenyDismount.svgz	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\EditMeasure.asp	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\GrantMeasure.jpg	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\OpenConnect.ps1	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File created	C:\Program Files\KRAB-DECRYPT.txt	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File created	C:\Program Files\a15b57aba15b504a612.lock	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\ClearRestore.rmi	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\RenameUndo.css	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\SwitchUnregister.xps	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File created	C:\Program Files (x86)\KRAB-DECRYPT.txt	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\RestartStep.odt	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\StopJoin.DVR	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\AddGet.mov	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\CopyRedo.potx	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\GetConfirm.xml	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File created	C:\Program Files (x86)\a15b57aba15b504a612.lock	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\PushEnable.eps	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\SkipInvoke.M2TS	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
File opened for modification	C:\Program Files\SubmitImport.shtml	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe

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

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:

ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2876 timeout.exe

pid	process
2876	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe

pid	process
3540	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
3540	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
3540	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
3540	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe

Suspicious use of AdjustPrivilegeToken 45 IoCs

Processes:

wmic.exevssvc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	3532	wmic.exe
Token: SeSecurityPrivilege	3532	wmic.exe
Token: SeTakeOwnershipPrivilege	3532	wmic.exe
Token: SeLoadDriverPrivilege	3532	wmic.exe
Token: SeSystemProfilePrivilege	3532	wmic.exe
Token: SeSystemtimePrivilege	3532	wmic.exe
Token: SeProfSingleProcessPrivilege	3532	wmic.exe
Token: SeIncBasePriorityPrivilege	3532	wmic.exe
Token: SeCreatePagefilePrivilege	3532	wmic.exe
Token: SeBackupPrivilege	3532	wmic.exe
Token: SeRestorePrivilege	3532	wmic.exe
Token: SeShutdownPrivilege	3532	wmic.exe
Token: SeDebugPrivilege	3532	wmic.exe
Token: SeSystemEnvironmentPrivilege	3532	wmic.exe
Token: SeRemoteShutdownPrivilege	3532	wmic.exe
Token: SeUndockPrivilege	3532	wmic.exe
Token: SeManageVolumePrivilege	3532	wmic.exe
Token: 33	3532	wmic.exe
Token: 34	3532	wmic.exe
Token: 35	3532	wmic.exe
Token: 36	3532	wmic.exe
Token: SeIncreaseQuotaPrivilege	3532	wmic.exe
Token: SeSecurityPrivilege	3532	wmic.exe
Token: SeTakeOwnershipPrivilege	3532	wmic.exe
Token: SeLoadDriverPrivilege	3532	wmic.exe
Token: SeSystemProfilePrivilege	3532	wmic.exe
Token: SeSystemtimePrivilege	3532	wmic.exe
Token: SeProfSingleProcessPrivilege	3532	wmic.exe
Token: SeIncBasePriorityPrivilege	3532	wmic.exe
Token: SeCreatePagefilePrivilege	3532	wmic.exe
Token: SeBackupPrivilege	3532	wmic.exe
Token: SeRestorePrivilege	3532	wmic.exe
Token: SeShutdownPrivilege	3532	wmic.exe
Token: SeDebugPrivilege	3532	wmic.exe
Token: SeSystemEnvironmentPrivilege	3532	wmic.exe
Token: SeRemoteShutdownPrivilege	3532	wmic.exe
Token: SeUndockPrivilege	3532	wmic.exe
Token: SeManageVolumePrivilege	3532	wmic.exe
Token: 33	3532	wmic.exe
Token: 34	3532	wmic.exe
Token: 35	3532	wmic.exe
Token: 36	3532	wmic.exe
Token: SeBackupPrivilege	1428	vssvc.exe
Token: SeRestorePrivilege	1428	vssvc.exe
Token: SeAuditPrivilege	1428	vssvc.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.execmd.exe

description	pid	process	target process
PID 3540 wrote to memory of 3532	3540	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe	wmic.exe
PID 3540 wrote to memory of 3532	3540	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe	wmic.exe
PID 3540 wrote to memory of 3532	3540	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe	wmic.exe
PID 3540 wrote to memory of 2928	3540	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe	cmd.exe
PID 3540 wrote to memory of 2928	3540	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe	cmd.exe
PID 3540 wrote to memory of 2928	3540	ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe	cmd.exe
PID 2928 wrote to memory of 2876	2928	cmd.exe	timeout.exe
PID 2928 wrote to memory of 2876	2928	cmd.exe	timeout.exe
PID 2928 wrote to memory of 2876	2928	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe
"C:\Users\Admin\AppData\Local\Temp\ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe"
1⤵
- Modifies extensions of user files
- Drops startup file
- Enumerates connected drives
- Drops file in Program Files directory
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3540

C:\Windows\SysWOW64\wbem\wmic.exe
"C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3532

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout -c 5 & del "C:\Users\Admin\AppData\Local\Temp\ef7b107c93e6d605a618fee82d5aeb2b32e3265999f332f624920911aabe1f23.sample.exe" /f /q
2⤵
- Suspicious use of WriteProcessMemory
PID:2928

C:\Windows\SysWOW64\timeout.exe
timeout -c 5
3⤵
- Delays execution with timeout.exe
PID:2876

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1428

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

1

T1107

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Inhibit System Recovery

1

T1490

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Downloads

memory/2876-117-0x0000000000000000-mapping.dmp

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memory/2928-116-0x0000000000000000-mapping.dmp

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memory/3532-115-0x0000000000000000-mapping.dmp

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memory/3540-114-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads