e1b3ae8fc890c6588e5656f77ef2747ae7ddfc90b6530b240c0c5b9d0ab3ce8c

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12/03/2024, 19:45

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General

Target

$TEMP/dxredist/dsetup32.dll
Size

1.5MB
MD5

d8fa7bb4fe10251a239ed75055dd6f73
SHA1

76c4bd2d8f359f7689415efc15e3743d35673ae8
SHA256

fb0e534f9b0926e518f1c2980640dfd29f14217cdfa37cf3a0c13349127ed9a8
SHA512

73f633179b1340c1c14d0002b72e44cab1919d0ef174f307e4bfe6de240b0b6ef233e67a8b0a0cd677556865ee7b88c6de152045a580ab9fbf1a50d2db0673b4
SSDEEP

24576:CIQ+ddddddddddddddxOOOOOOOOOOOOOO2iWeXiWeXiWeXiWeXiWeXiWeXiWeXi+:CIQsOOOOOOOOOOOOOO2iWeXiWeXiWeXf

Score

4^/10

Malware Config

Signatures

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Logs\DXError.log	rundll32.exe
File opened for modification	C:\Windows\Logs\DirectX.log	rundll32.exe

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

System Information Discovery
T1082

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
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
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

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeBackupPrivilege	2948	vssvc.exe
Token: SeRestorePrivilege	2948	vssvc.exe
Token: SeAuditPrivilege	2948	vssvc.exe
Token: SeBackupPrivilege	2608	srtasks.exe
Token: SeRestorePrivilege	2608	srtasks.exe
Token: SeSecurityPrivilege	2608	srtasks.exe
Token: SeTakeOwnershipPrivilege	2608	srtasks.exe
Token: SeBackupPrivilege	2608	srtasks.exe
Token: SeRestorePrivilege	2608	srtasks.exe
Token: SeSecurityPrivilege	2608	srtasks.exe
Token: SeTakeOwnershipPrivilege	2608	srtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 4192	1712	rundll32.exe	89
PID 1712 wrote to memory of 4192	1712	rundll32.exe	89
PID 1712 wrote to memory of 4192	1712	rundll32.exe	89

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

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\dxredist\dsetup32.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\dxredist\dsetup32.dll,#1
  2⤵
  - Drops file in Windows directory
  PID:4192

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:2948

C:\Windows\system32\srtasks.exe
C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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:\Windows\Logs\DXError.log

Filesize
238B

MD5
de9db7f2ddb1a5aa9e6c1c5f83f0c263

SHA1
2a6868632d34617fa8644060544ababf87ae4bfd

SHA256
8707b2e86da2fd7583f50cd40906a135115bf3e9c6e6f5aed744917ab4504059

SHA512
61297b83263095f8bbc812b644ade4f12a17c525e08426639042002c0dc23162a7da608ca532ea69363125af802b8c23b05f3bed6da88b05932a3b9168b4fc12

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C:\Windows\Logs\DirectX.log

Filesize
517B

MD5
4eb5204cb38098568d2c38faa9437ac1

SHA1
46f2154108d6aa226fa431615c3b94ad590cc3f9

SHA256
397164a07ea6dcd7d7cfc0e14f26f45de4bf7bb2676a58093eedd51e8a6ccc94

SHA512
fe5b34d4e08f40b60c91e4a3e111b4689a6529dac1895d975181919b72af76f8029e337fd8bbe4c17659fcf1c43b2178d8960b4c80f27bb14cf41d692bbe5828

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