Overview
overview
10Static
static
10Malware-1-...30.exe
windows10-ltsc 2021-x64
10Malware-1-...40.exe
windows10-ltsc 2021-x64
10Malware-1-...32.exe
windows10-ltsc 2021-x64
10Malware-1-.../5.exe
windows10-ltsc 2021-x64
10Malware-1-...91.exe
windows10-ltsc 2021-x64
10Malware-1-...ey.exe
windows10-ltsc 2021-x64
7Malware-1-...ad.exe
windows10-ltsc 2021-x64
3Malware-1-...ti.exe
windows10-ltsc 2021-x64
5Malware-1-...an.bat
windows10-ltsc 2021-x64
7Malware-1-...an.exe
windows10-ltsc 2021-x64
7Malware-1-...ve.bat
windows10-ltsc 2021-x64
7Malware-1-...ve.exe
windows10-ltsc 2021-x64
7Malware-1-...ya.exe
windows10-ltsc 2021-x64
Malware-1-...re.exe
windows10-ltsc 2021-x64
10Malware-1-...ry.exe
windows10-ltsc 2021-x64
10Malware-1-...ck.exe
windows10-ltsc 2021-x64
3Malware-1-...he.exe
windows10-ltsc 2021-x64
10Malware-1-...op.exe
windows10-ltsc 2021-x64
7Malware-1-...rb.exe
windows10-ltsc 2021-x64
10Malware-1-...ue.exe
windows10-ltsc 2021-x64
1Malware-1-...ng.exe
windows10-ltsc 2021-x64
6Malware-1-...kt.bat
windows10-ltsc 2021-x64
7Malware-1-...o3.exe
windows10-ltsc 2021-x64
10Malware-1-...ey.exe
windows10-ltsc 2021-x64
10Malware-1-.../m.exe
windows10-ltsc 2021-x64
Malware-1-...o3.exe
windows10-ltsc 2021-x64
9Malware-1-...32.exe
windows10-ltsc 2021-x64
10Malware-1-...nf.exe
windows10-ltsc 2021-x64
10Malware-1-.../o.exe
windows10-ltsc 2021-x64
3Malware-1-...B8.exe
windows10-ltsc 2021-x64
10Malware-1-...ic.exe
windows10-ltsc 2021-x64
3Malware-1-...in.exe
windows10-ltsc 2021-x64
10Resubmissions
13/02/2025, 01:26
250213-btppra1pcz 1017/01/2025, 20:14
250117-yz7h3s1qfw 1017/01/2025, 20:12
250117-yy9l2sslcr 1017/01/2025, 17:25
250117-vy9p9sxpez 1017/01/2025, 17:21
250117-vw8eesyjfp 1017/01/2025, 14:16
250117-rk9ass1rhk 1017/01/2025, 14:12
250117-rhv1ds1lds 1016/01/2025, 12:52
250116-p4et7a1mez 10Analysis
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max time kernel
149s -
max time network
156s -
platform
windows10-ltsc 2021_x64 -
resource
win10ltsc2021-20250113-en -
resource tags
arch:x64arch:x86image:win10ltsc2021-20250113-enlocale:en-usos:windows10-ltsc 2021-x64system -
submitted
17/01/2025, 20:14
Behavioral task
behavioral1
Sample
Malware-1-master/2530.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral2
Sample
Malware-1-master/2887140.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral3
Sample
Malware-1-master/32.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral4
Sample
Malware-1-master/5.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral5
Sample
Malware-1-master/96591.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral6
Sample
Malware-1-master/Amadey.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral7
Sample
Malware-1-master/Download.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral8
Sample
Malware-1-master/Illuminati.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral9
Sample
Malware-1-master/MEMZ-Clean.bat
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral10
Sample
Malware-1-master/MEMZ-Clean.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral11
Sample
Malware-1-master/MEMZ-Destructive.bat
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral12
Sample
Malware-1-master/MEMZ-Destructive.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral13
Sample
Malware-1-master/Petya.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral14
Sample
Malware-1-master/Software.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral15
Sample
Malware-1-master/WannaCry.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral16
Sample
Malware-1-master/Win32.EvilClusterFuck.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral17
Sample
Malware-1-master/apache.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral18
Sample
Malware-1-master/butterflyondesktop.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral19
Sample
Malware-1-master/crb.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral20
Sample
Malware-1-master/eternalblue.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral21
Sample
Malware-1-master/fear.png.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral22
Sample
Malware-1-master/getr3kt.bat
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral23
Sample
Malware-1-master/iimo3.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral24
Sample
Malware-1-master/jey.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral25
Sample
Malware-1-master/m.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral26
Sample
Malware-1-master/mo3.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral27
Sample
Malware-1-master/mo332.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral28
Sample
Malware-1-master/mysqlconf.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral29
Sample
Malware-1-master/o.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral30
Sample
Malware-1-master/qOA7iZJcoB8.exe
Resource
win10ltsc2021-20250113-en
Behavioral task
behavioral31
Sample
Malware-1-master/wintonic.exe
Resource
win10ltsc2021-20250113-en
General
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Target
Malware-1-master/crb.exe
-
Size
139KB
-
MD5
24275604649ac0abafe99b981b914fbc
-
SHA1
818b0e3018ad27be9887e9e5f4ef1971f422652c
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SHA256
4b5fe7497864d07f78af15fa3e1aa3702b303b89f9644624871d83dd0f484749
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SHA512
008ef045724963d6ae3b845a6c3de8ebb6682b0f4b8ea77c2d35e2193596b78f0092183de0a88a34f7dde4e71abbc129b2f0f00fd8469801fff66f1b8390b6c8
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SSDEEP
1536:JLMVCWvZ8URtqOz3d+1Qs6H9Mk2e3E2avMWC3yMgYxf6+okbdWsWjcdpKCaIxWzX:VM9ntZ3s1QJdnU2SQdf64ZZ8CaIxWec
Malware Config
Extracted
F:\$RECYCLE.BIN\S-1-5-21-2826969134-2088669430-2680400721-1000\MHMCM-DECRYPT.txt
http://gandcrabmfe6mnef.onion/b96b8df5c38240ca
Signatures
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Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
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Gandcrab family
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Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (323) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2826969134-2088669430-2680400721-1000\Control Panel\International\Geo\Nation crb.exe -
Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
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Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\MHMCM-DECRYPT.txt crb.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\c3824726c38240cd219.lock crb.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\P: crb.exe File opened (read-only) \??\R: crb.exe File opened (read-only) \??\J: crb.exe File opened (read-only) \??\H: crb.exe File opened (read-only) \??\N: crb.exe File opened (read-only) \??\Z: crb.exe File opened (read-only) \??\G: crb.exe File opened (read-only) \??\E: crb.exe File opened (read-only) \??\M: crb.exe File opened (read-only) \??\O: crb.exe File opened (read-only) \??\Q: crb.exe File opened (read-only) \??\S: crb.exe File opened (read-only) \??\U: crb.exe File opened (read-only) \??\W: crb.exe File opened (read-only) \??\A: crb.exe File opened (read-only) \??\X: crb.exe File opened (read-only) \??\I: crb.exe File opened (read-only) \??\K: crb.exe File opened (read-only) \??\L: crb.exe File opened (read-only) \??\T: crb.exe File opened (read-only) \??\V: crb.exe File opened (read-only) \??\Y: crb.exe File opened (read-only) \??\B: crb.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2826969134-2088669430-2680400721-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\pidor.bmp" crb.exe -
Drops file in Program Files directory 16 IoCs
description ioc Process File opened for modification C:\Program Files\InitializeGroup.dotm crb.exe File opened for modification C:\Program Files\AssertSuspend.dotx crb.exe File opened for modification C:\Program Files\FormatCompress.dotm crb.exe File opened for modification C:\Program Files\FormatAdd.png crb.exe File opened for modification C:\Program Files\UninstallApprove.AAC crb.exe File opened for modification C:\Program Files\BlockResume.tif crb.exe File opened for modification C:\Program Files\ConvertFromWrite.snd crb.exe File opened for modification C:\Program Files\UnblockStop.emz crb.exe File created C:\Program Files\MHMCM-DECRYPT.txt crb.exe File created C:\Program Files\c3824726c38240cd219.lock crb.exe File opened for modification C:\Program Files\ConnectLimit.vsd crb.exe File opened for modification C:\Program Files\ImportEnable.pot crb.exe File created C:\Program Files (x86)\MHMCM-DECRYPT.txt crb.exe File created C:\Program Files (x86)\c3824726c38240cd219.lock crb.exe File opened for modification C:\Program Files\ApproveSuspend.potm crb.exe File opened for modification C:\Program Files\ConfirmUnlock.tif crb.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
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.
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 -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B51C067CEE2B0C3DF855AB2D92F4FE39D4E70F0E crb.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B51C067CEE2B0C3DF855AB2D92F4FE39D4E70F0E\Blob = 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 crb.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 4156 crb.exe 4156 crb.exe 4156 crb.exe 4156 crb.exe 3708 wmic.exe 3708 wmic.exe 3708 wmic.exe 3708 wmic.exe -
Suspicious use of AdjustPrivilegeToken 45 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 3708 wmic.exe Token: SeSecurityPrivilege 3708 wmic.exe Token: SeTakeOwnershipPrivilege 3708 wmic.exe Token: SeLoadDriverPrivilege 3708 wmic.exe Token: SeSystemProfilePrivilege 3708 wmic.exe Token: SeSystemtimePrivilege 3708 wmic.exe Token: SeProfSingleProcessPrivilege 3708 wmic.exe Token: SeIncBasePriorityPrivilege 3708 wmic.exe Token: SeCreatePagefilePrivilege 3708 wmic.exe Token: SeBackupPrivilege 3708 wmic.exe Token: SeRestorePrivilege 3708 wmic.exe Token: SeShutdownPrivilege 3708 wmic.exe Token: SeDebugPrivilege 3708 wmic.exe Token: SeSystemEnvironmentPrivilege 3708 wmic.exe Token: SeRemoteShutdownPrivilege 3708 wmic.exe Token: SeUndockPrivilege 3708 wmic.exe Token: SeManageVolumePrivilege 3708 wmic.exe Token: 33 3708 wmic.exe Token: 34 3708 wmic.exe Token: 35 3708 wmic.exe Token: 36 3708 wmic.exe Token: SeIncreaseQuotaPrivilege 3708 wmic.exe Token: SeSecurityPrivilege 3708 wmic.exe Token: SeTakeOwnershipPrivilege 3708 wmic.exe Token: SeLoadDriverPrivilege 3708 wmic.exe Token: SeSystemProfilePrivilege 3708 wmic.exe Token: SeSystemtimePrivilege 3708 wmic.exe Token: SeProfSingleProcessPrivilege 3708 wmic.exe Token: SeIncBasePriorityPrivilege 3708 wmic.exe Token: SeCreatePagefilePrivilege 3708 wmic.exe Token: SeBackupPrivilege 3708 wmic.exe Token: SeRestorePrivilege 3708 wmic.exe Token: SeShutdownPrivilege 3708 wmic.exe Token: SeDebugPrivilege 3708 wmic.exe Token: SeSystemEnvironmentPrivilege 3708 wmic.exe Token: SeRemoteShutdownPrivilege 3708 wmic.exe Token: SeUndockPrivilege 3708 wmic.exe Token: SeManageVolumePrivilege 3708 wmic.exe Token: 33 3708 wmic.exe Token: 34 3708 wmic.exe Token: 35 3708 wmic.exe Token: 36 3708 wmic.exe Token: SeBackupPrivilege 3872 vssvc.exe Token: SeRestorePrivilege 3872 vssvc.exe Token: SeAuditPrivilege 3872 vssvc.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4156 wrote to memory of 3708 4156 crb.exe 83 PID 4156 wrote to memory of 3708 4156 crb.exe 83 PID 4156 wrote to memory of 3708 4156 crb.exe 83 -
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\Malware-1-master\crb.exe"C:\Users\Admin\AppData\Local\Temp\Malware-1-master\crb.exe"1⤵
- Checks computer location settings
- 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:4156 -
C:\Windows\SysWOW64\wbem\wmic.exe"C:\Windows\system32\wbem\wmic.exe" shadowcopy delete2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3708
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3872
Network
MITRE ATT&CK Enterprise v15
Defense Evasion
Indicator Removal
1File Deletion
1Modify Registry
2Subvert Trust Controls
1Install Root Certificate
1Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
8KB
MD553b04ef2981bdbfc9de92eed9cd4a1a5
SHA18e3acea8a7739e81a3b66a1e547a9f05707c6847
SHA2563bc0d263a78760e94275edf6332331ee0691715ee8ad73b93ce15edb817bbcc3
SHA51219874a7cea283ff6bfe7568b0f519b12c335bf1b41cabe412e1630fdddcfd037ef4680b18c67779a09becc3154a1eac3a53c699423faecb65b354762f741e2ec