552c8b4e7e50b09bc45a2dfb8e22ce583cb889631a962c95a86fb7dfb3fb3240

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
22/05/2023, 08:38

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General

Target

552c8b4e7e50b09bc45a2dfb8e22ce583cb889631a962c95a86fb7dfb3fb3240.dll
Size

960KB
MD5

c020f8e756f632c4cd47bc31f100905b
SHA1

a6dddbfd15eda8fd5eda82adf5ffea70ea20d342
SHA256

552c8b4e7e50b09bc45a2dfb8e22ce583cb889631a962c95a86fb7dfb3fb3240
SHA512

4c2f074d4da7dc57f36d332b48d256521b2531786409e25f495f6d59ddd1d378d61809189306240d711029b9ae76ff514cd43400e55fce65ff9ae1949532386c
SSDEEP

24576:D+o/IO2KinSjvj/3r+F+BCWYMTnTnSaxioHQp:ao/I9K1bxCPMTnTbP+

Score

7^/10

Malware Config

Signatures

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	rundll32.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4044	2284	WerFault.exe	83
1440	2284	WerFault.exe	83

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	rundll32.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sg1979013809b.dzx	rundll32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\sg1979013809b.dzx\ = 0b07ab00ea103dc0f46ac4510ec9968e	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4632 wrote to memory of 2284	4632	rundll32.exe	83
PID 4632 wrote to memory of 2284	4632	rundll32.exe	83
PID 4632 wrote to memory of 2284	4632	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\552c8b4e7e50b09bc45a2dfb8e22ce583cb889631a962c95a86fb7dfb3fb3240.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4632
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\552c8b4e7e50b09bc45a2dfb8e22ce583cb889631a962c95a86fb7dfb3fb3240.dll,#1
  2⤵
  - Checks BIOS information in registry
  - Enumerates system info in registry
  - Modifies registry class
  PID:2284
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2284 -s 700
    3⤵
    - Program crash
    PID:4044
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2284 -s 692
    3⤵
    - Program crash
    PID:1440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 2284 -ip 2284
1⤵
PID:1612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2284 -ip 2284
1⤵
PID:4832

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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