5e8b94ddfbf41321f4192295a6054b04b2b42cc09f44f822ceb915b255a43122

Analysis

max time kernel
178s
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
07-11-2023 13:52

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General

Target

SETUP.bat
Size

192B
MD5

4200cecaf0d0d6838e48b87f78c90c19
SHA1

9ac646870d4047e34d72ea244d003397bb4e54be
SHA256

1c684469f8230b75ca0c8e6d1ed39bfdbe22d7259e7c992986f9f3897bf91c05
SHA512

1f363479d82e6d9f1f8e068aff25043f8af44027a49c337f788ead27329e510c9e8bed755d5a7cb484be3fcfcfeb986481e82d68cc4689fd92f79c7df22169e0

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

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\\\""	vcredist_x86.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

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters	vssvc.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1516	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1516	msiexec.exe
Token: SeSecurityPrivilege	3308	msiexec.exe
Token: SeCreateTokenPrivilege	1516	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1516	msiexec.exe
Token: SeLockMemoryPrivilege	1516	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1516	msiexec.exe
Token: SeMachineAccountPrivilege	1516	msiexec.exe
Token: SeTcbPrivilege	1516	msiexec.exe
Token: SeSecurityPrivilege	1516	msiexec.exe
Token: SeTakeOwnershipPrivilege	1516	msiexec.exe
Token: SeLoadDriverPrivilege	1516	msiexec.exe
Token: SeSystemProfilePrivilege	1516	msiexec.exe
Token: SeSystemtimePrivilege	1516	msiexec.exe
Token: SeProfSingleProcessPrivilege	1516	msiexec.exe
Token: SeIncBasePriorityPrivilege	1516	msiexec.exe
Token: SeCreatePagefilePrivilege	1516	msiexec.exe
Token: SeCreatePermanentPrivilege	1516	msiexec.exe
Token: SeBackupPrivilege	1516	msiexec.exe
Token: SeRestorePrivilege	1516	msiexec.exe
Token: SeShutdownPrivilege	1516	msiexec.exe
Token: SeDebugPrivilege	1516	msiexec.exe
Token: SeAuditPrivilege	1516	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1516	msiexec.exe
Token: SeChangeNotifyPrivilege	1516	msiexec.exe
Token: SeRemoteShutdownPrivilege	1516	msiexec.exe
Token: SeUndockPrivilege	1516	msiexec.exe
Token: SeSyncAgentPrivilege	1516	msiexec.exe
Token: SeEnableDelegationPrivilege	1516	msiexec.exe
Token: SeManageVolumePrivilege	1516	msiexec.exe
Token: SeImpersonatePrivilege	1516	msiexec.exe
Token: SeCreateGlobalPrivilege	1516	msiexec.exe
Token: SeBackupPrivilege	3424	vssvc.exe
Token: SeRestorePrivilege	3424	vssvc.exe
Token: SeAuditPrivilege	3424	vssvc.exe
Token: SeBackupPrivilege	3308	msiexec.exe
Token: SeRestorePrivilege	3308	msiexec.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1516	msiexec.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3184 wrote to memory of 4920	3184	cmd.exe	83
PID 3184 wrote to memory of 4920	3184	cmd.exe	83
PID 3184 wrote to memory of 4920	3184	cmd.exe	83
PID 4920 wrote to memory of 1516	4920	vcredist_x86.exe	86
PID 4920 wrote to memory of 1516	4920	vcredist_x86.exe	86
PID 4920 wrote to memory of 1516	4920	vcredist_x86.exe	86

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\SETUP.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:3184
- C:\Users\Admin\AppData\Local\Temp\vcredist_x86.exe
  vcredist_x86.exe /q:a /c:"msiexec /i vcredist.msi /qb!"
  2⤵
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4920
- - C:\Windows\SysWOW64\msiexec.exe
    msiexec /i vcredist.msi /qb!
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of FindShellTrayWindow
    PID:1516

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3308

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:3424

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

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Downloads

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

Filesize
2.7MB

MD5
dc1ab7ce3b89fc7cac369d8b246cdafe

SHA1
c9a2d5a312f770189c4b65cb500905e4773c14ad

SHA256
dde77dd3473d3d07c459f17cd267f96f19264f976f2fcc85b4bbbecf26487560

SHA512
e554b8b36a7a853d4e6efb4e6faf2d784f41e8d26edafbb1689a944bf0a7a4b58258d820a3fada1496b8c8d295d8771fc713b29127d54a3fbc317659b7565cbe

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads