gandcrab | 280268db673f66dc31e54d86de101cf8b5d52c583a9282d9c7ccb4475612a8e0

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 13:46

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General

Target

234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
Size

93KB
MD5

bdbca2193b35706fef4ce9368af7a886
SHA1

216e8cf79eced5dba6365b1648cb8ca126ef0cae
SHA256

234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2
SHA512

af70ab8b4738a2c5a7869f202a850357d71cb43d67498b87525924dfbd2f456254d0ecb4c2651797b2ec75c3717cf0a4433a7d7573a27bbb55ac644c75009a49
SSDEEP

1536:7w2p3ieRXCkxEoSXf6GizDhp2keW8PaoYEXOcrHuTc+N:cSyex5yoSPmzKkeW8iEXjHU

Score

10^/10

gandcrab backdoor credential_access defense_evasion discovery execution impact ransomware spyware stealer

Malware Config

Extracted

Path

F:\$RECYCLE.BIN\S-1-5-21-3290804112-2823094203-3137964600-1000\WELENDZZNL-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: .WELENDZZNL 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/34d2ee38d03c3cf | 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--- 7ftDEgLb/ZS0lcmZbHM61KDJ6AOtD78KkA7absMgUXYxWLsC+5+UYF9xVmDo9NPJLpDSAvSVp+DBRWnIKnQXQzua3LPyzokSUuglaqKXwabsGM4pXku5In6gtMQMqg7sgEh1XW1iPMFgiUj/s1LdWpJHdiPjMpn7rCZNO/A31mak0K8RefoREu3BxtlAsseHWfVIIKN0U4NnA3w0Ga7XDLlF3iOIB6ImYbF6Z/7MBN2mgBr2rZ2mU0R7+dxfWLoypoW25ypHEnKnMMuBl1Cmehqo5VrrnNSZu19KSVzOtTAymPz79ICyGBkpCKj0RQwVePfN00RSBSDBtO6Jf9BYBnFqrcY2R7S3MbHPmYeRj0fTP4/y6vM9LODjDaPvr3tWv+YKTznJt/bAL0J01/eNSzezgKAqoTvFqJ2HPDmx5ShGudnoMloV6iCVyemoqB5vYrwCrt0ypS8F1fOlXjmT7rN4cOwygU+wTkywb+cfzdw/LWqjqbjWwFvi9DPXKP+ghY2cWKz+6gkLvCeiiYFcEv1EtSM9ANLhxdQDIBf1BEGWyeqMZp0P1h0/u+RWez0Et3TBCrbrZtdJPEmVKsoqLrgbsAnNcG2VuLCZEZKsSbTenISaf0Ihb4k0t1Gacy3SiKIADBDFnYH2qA1whEaNxA== ---END PC DATA---

URLs

http://gandcrabmfe6mnef.onion/34d2ee38d03c3cf

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 (298) 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

Processes:

234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\WELENDZZNL-MANUAL.txt	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\d03c422d03c3c241c.lock	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.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

Processes:

234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe

description	ioc	process
File opened (read-only)	\??\A:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\Q:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\Z:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\J:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\M:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\P:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\V:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\W:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\G:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\K:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\L:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\N:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\O:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\S:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\T:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\X:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\Y:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\B:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\E:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\H:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\I:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\R:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened (read-only)	\??\U:	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\bxmeoengtf.bmp"	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe

Drops file in Program Files directory 47 IoCs

Processes:

234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe

description	ioc	process
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\d03c422d03c3c241c.lock	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\DenyStart.wma	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\GrantSplit.emf	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\OutDisconnect.vst	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\RegisterSubmit.bin	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\ResetMerge.php	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File created	C:\Program Files (x86)\WELENDZZNL-MANUAL.txt	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\DenySubmit.odt	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\FindStep.docm	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\RestartConvertTo.xltm	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\UninstallWrite.vsw	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\DenyApprove.asp	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\FormatTrace.jpeg	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\GetDebug.vdx	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\ResetUpdate.M2V	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File created	C:\Program Files (x86)\d03c422d03c3c241c.lock	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\ConfirmSplit.jpeg	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\RenameConvert.midi	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\SubmitRequest.odt	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\OutProtect.ps1	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\RedoWait.ods	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\RemoveSave.7z	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\TestWatch.au3	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\d03c422d03c3c241c.lock	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\WELENDZZNL-MANUAL.txt	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\InstallUndo.js	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\SetImport.edrwx	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\SplitConvert.docx	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\StopConnect.asx	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\WELENDZZNL-MANUAL.txt	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\WaitInstall.easmx	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\d03c422d03c3c241c.lock	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File created	C:\Program Files\d03c422d03c3c241c.lock	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\BackupInstall.3gp	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\FormatAdd.rtf	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\PublishDeny.emf	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\ReceiveImport.asp	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\RemoveStart.asf	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\ResolveDisable.DVR-MS	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\UpdateCompare.vsdx	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File created	C:\Program Files\WELENDZZNL-MANUAL.txt	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\EditRestart.wdp	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\GrantConvertTo.MTS	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\HideConfirm.mpeg	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\InvokeConvertTo.m1v	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File opened for modification	C:\Program Files\PingInvoke.aifc	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\WELENDZZNL-MANUAL.txt	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.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

Processes:

234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exewmic.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.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

Processes:

234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe

pid	process
1920	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
1920	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

Processes:

wmic.exevssvc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1148	wmic.exe
Token: SeSecurityPrivilege	1148	wmic.exe
Token: SeTakeOwnershipPrivilege	1148	wmic.exe
Token: SeLoadDriverPrivilege	1148	wmic.exe
Token: SeSystemProfilePrivilege	1148	wmic.exe
Token: SeSystemtimePrivilege	1148	wmic.exe
Token: SeProfSingleProcessPrivilege	1148	wmic.exe
Token: SeIncBasePriorityPrivilege	1148	wmic.exe
Token: SeCreatePagefilePrivilege	1148	wmic.exe
Token: SeBackupPrivilege	1148	wmic.exe
Token: SeRestorePrivilege	1148	wmic.exe
Token: SeShutdownPrivilege	1148	wmic.exe
Token: SeDebugPrivilege	1148	wmic.exe
Token: SeSystemEnvironmentPrivilege	1148	wmic.exe
Token: SeRemoteShutdownPrivilege	1148	wmic.exe
Token: SeUndockPrivilege	1148	wmic.exe
Token: SeManageVolumePrivilege	1148	wmic.exe
Token: 33	1148	wmic.exe
Token: 34	1148	wmic.exe
Token: 35	1148	wmic.exe
Token: SeIncreaseQuotaPrivilege	1148	wmic.exe
Token: SeSecurityPrivilege	1148	wmic.exe
Token: SeTakeOwnershipPrivilege	1148	wmic.exe
Token: SeLoadDriverPrivilege	1148	wmic.exe
Token: SeSystemProfilePrivilege	1148	wmic.exe
Token: SeSystemtimePrivilege	1148	wmic.exe
Token: SeProfSingleProcessPrivilege	1148	wmic.exe
Token: SeIncBasePriorityPrivilege	1148	wmic.exe
Token: SeCreatePagefilePrivilege	1148	wmic.exe
Token: SeBackupPrivilege	1148	wmic.exe
Token: SeRestorePrivilege	1148	wmic.exe
Token: SeShutdownPrivilege	1148	wmic.exe
Token: SeDebugPrivilege	1148	wmic.exe
Token: SeSystemEnvironmentPrivilege	1148	wmic.exe
Token: SeRemoteShutdownPrivilege	1148	wmic.exe
Token: SeUndockPrivilege	1148	wmic.exe
Token: SeManageVolumePrivilege	1148	wmic.exe
Token: 33	1148	wmic.exe
Token: 34	1148	wmic.exe
Token: 35	1148	wmic.exe
Token: SeBackupPrivilege	2688	vssvc.exe
Token: SeRestorePrivilege	2688	vssvc.exe
Token: SeAuditPrivilege	2688	vssvc.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe

description	pid	process	target process
PID 1920 wrote to memory of 1148	1920	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe	wmic.exe
PID 1920 wrote to memory of 1148	1920	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe	wmic.exe
PID 1920 wrote to memory of 1148	1920	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe	wmic.exe
PID 1920 wrote to memory of 1148	1920	234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe	wmic.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\234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.exe
"C:\Users\Admin\AppData\Local\Temp\234901adb1100979c1e842133901f0bb8617683efeed4e3d56245f71f71aa6b2.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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1920
- 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:1148

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2688

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

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

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Downloads

F:\$RECYCLE.BIN\S-1-5-21-3290804112-2823094203-3137964600-1000\WELENDZZNL-MANUAL.txt

Filesize
8KB

MD5
b3e2394be39b81f3df2bff637b1fc49a

SHA1
ba369ad1a3641db8e7de1b94cac2a29f11a5c5b9

SHA256
6e43be73d8cbabe4474ae2ef65f8a3aa569c4868b311e0075df914ba6376f29f

SHA512
e7a8b5ecac53f3c7457b054960e9097f3407d65a1687d77081f5101ccbd26cd97325ebc660eb64cbd119545b7574b5ac5c1596b16792875fbd6ffcd15ec0802e

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