0e65478053e2e1ca652077c2787f525c653b56d847d7d359e9f4ececdc16e6fa

Analysis

max time kernel
117s
max time network
198s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2023 17:15

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General

Target

vcredist2005_x86.exe
Size

2.6MB
MD5

ce2922f83fb4b170affce0ea448b107b
SHA1

b8fab0bb7f62a24ddfe77b19cd9a1451abd7b847
SHA256

4ee4da0fe62d5fa1b5e80c6e6d88a4a2f8b3b140c35da51053d0d7b72a381d29
SHA512

e94b077e054bd8992374d359f3adc4d1d78d42118d878556715d77182f7d03635850b2b2f06c012ccb7c410e2b3c124cf6508473efe150d3c51a51857ce1c6b0
SSDEEP

49152:rqGRIgg2SirwkF9xdtb43lyGKCafpKkiwnaDahmPzpY4FPyaza:rxxLFfY/KCCpKk9aWMzZyau

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

vcredist2005_x86.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	vcredist2005_x86.exe

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:

msiexec.exe

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

Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

vssvc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters	vssvc.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters\Partmgr	vssvc.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters\Partmgr\PartitionTableCache = 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	vssvc.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters\Partmgr\SnapshotDataCache = 534e41505041525401000000700000008ec7416a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	vssvc.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

Processes:

msiexec.exemsiexec.exevssvc.exe

description	pid	process
Token: SeShutdownPrivilege	1644	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1644	msiexec.exe
Token: SeSecurityPrivilege	2208	msiexec.exe
Token: SeCreateTokenPrivilege	1644	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1644	msiexec.exe
Token: SeLockMemoryPrivilege	1644	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1644	msiexec.exe
Token: SeMachineAccountPrivilege	1644	msiexec.exe
Token: SeTcbPrivilege	1644	msiexec.exe
Token: SeSecurityPrivilege	1644	msiexec.exe
Token: SeTakeOwnershipPrivilege	1644	msiexec.exe
Token: SeLoadDriverPrivilege	1644	msiexec.exe
Token: SeSystemProfilePrivilege	1644	msiexec.exe
Token: SeSystemtimePrivilege	1644	msiexec.exe
Token: SeProfSingleProcessPrivilege	1644	msiexec.exe
Token: SeIncBasePriorityPrivilege	1644	msiexec.exe
Token: SeCreatePagefilePrivilege	1644	msiexec.exe
Token: SeCreatePermanentPrivilege	1644	msiexec.exe
Token: SeBackupPrivilege	1644	msiexec.exe
Token: SeRestorePrivilege	1644	msiexec.exe
Token: SeShutdownPrivilege	1644	msiexec.exe
Token: SeDebugPrivilege	1644	msiexec.exe
Token: SeAuditPrivilege	1644	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1644	msiexec.exe
Token: SeChangeNotifyPrivilege	1644	msiexec.exe
Token: SeRemoteShutdownPrivilege	1644	msiexec.exe
Token: SeUndockPrivilege	1644	msiexec.exe
Token: SeSyncAgentPrivilege	1644	msiexec.exe
Token: SeEnableDelegationPrivilege	1644	msiexec.exe
Token: SeManageVolumePrivilege	1644	msiexec.exe
Token: SeImpersonatePrivilege	1644	msiexec.exe
Token: SeCreateGlobalPrivilege	1644	msiexec.exe
Token: SeBackupPrivilege	3696	vssvc.exe
Token: SeRestorePrivilege	3696	vssvc.exe
Token: SeAuditPrivilege	3696	vssvc.exe
Token: SeBackupPrivilege	2208	msiexec.exe
Token: SeRestorePrivilege	2208	msiexec.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

msiexec.exe

pid process

1644 msiexec.exe

pid	process
1644	msiexec.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

vcredist2005_x86.exe

description	pid	process	target process
PID 4276 wrote to memory of 1644	4276	vcredist2005_x86.exe	msiexec.exe
PID 4276 wrote to memory of 1644	4276	vcredist2005_x86.exe	msiexec.exe
PID 4276 wrote to memory of 1644	4276	vcredist2005_x86.exe	msiexec.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\vcredist2005_x86.exe
"C:\Users\Admin\AppData\Local\Temp\vcredist2005_x86.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4276

C:\Windows\SysWOW64\msiexec.exe
msiexec /i vcredist.msi
2⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1644

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2208

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:3696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\vcredist.msi

Filesize
2.6MB

MD5
b20bbeb818222b657df49a9cfe4fed79

SHA1
3f6508e880b86502773a3275bc9527f046d45502

SHA256
91bdd063f6c53126737791c9eccf0b2f4cf44927831527245bc89a0be06c0cb4

SHA512
f534bc7bf1597e728940e6c3b77f864adfaa413bb1e080458326b692b0f96bddf4fbd294eeed36d7764a3578e6c8e919488bbf63b8fe2d4355ab3efd685424a4

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