e1b3ae8fc890c6588e5656f77ef2747ae7ddfc90b6530b240c0c5b9d0ab3ce8c

Analysis

max time kernel
554s
max time network
567s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
27-06-2024 22:24

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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	3560	vssvc.exe
Token: SeRestorePrivilege	3560	vssvc.exe
Token: SeAuditPrivilege	3560	vssvc.exe
Token: SeBackupPrivilege	408	srtasks.exe
Token: SeRestorePrivilege	408	srtasks.exe
Token: SeSecurityPrivilege	408	srtasks.exe
Token: SeTakeOwnershipPrivilege	408	srtasks.exe
Token: SeBackupPrivilege	408	srtasks.exe
Token: SeRestorePrivilege	408	srtasks.exe
Token: SeSecurityPrivilege	408	srtasks.exe
Token: SeTakeOwnershipPrivilege	408	srtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3448 wrote to memory of 4080	3448	rundll32.exe	82
PID 3448 wrote to memory of 4080	3448	rundll32.exe	82
PID 3448 wrote to memory of 4080	3448	rundll32.exe	82

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:3448
- 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:4080

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:3560

C:\Windows\system32\srtasks.exe
C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:408

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
79d98c5d22049fedc50a0e430c4363f8

SHA1
be547420fa1c622e678a9dfae6708729c601bb8c

SHA256
94044c4df729132c201d993e8aaf6466c378a97f657483f51419a050b855fe22

SHA512
79113a5d9f42e748c4a9227575de0ab052b8100cfcc735887db751a14c3c2c3facc39651def747156b4d5051db1422be9f05f2f9f71604eeadbf117e1f199229

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C:\Windows\Logs\DirectX.log

Filesize
517B

MD5
559fc56326a73713c29096329f9092ff

SHA1
82ea138cb4eb2282f894b401ccc1a2df485e4fa9

SHA256
5e039aac3d70d514cc50d01726fbbf3318b48943ec55b7a318c64054b63cbd88

SHA512
2b24780cae8275f9088b31e40be548131519f6392c3f86ee2b32e27d9b959978fb354bb3091836ed90d541f0fb8afe8b9f54732f1cc2951a09a0889b59b22d41

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