7d40339fca72718ec77ca4cad6d611f13cae059a53c0870446761a80dff1f115

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
20-05-2022 22:19

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General

Target

7d40339fca72718ec77ca4cad6d611f13cae059a53c0870446761a80dff1f115.dll
Size

2.4MB
MD5

b89dd8b599e9fac14ea46b60c54554f9
SHA1

bcfea8f8611850b79389f1f5014e2c219cfd44b4
SHA256

7d40339fca72718ec77ca4cad6d611f13cae059a53c0870446761a80dff1f115
SHA512

721c8551807125d9094beeff7c62973e65fd8595732c9d927334e9c89e4a2e80fcdf00c76969dcf95bf1627f8a00ea3a1f0483c8792e5e25ac70e8cbf385a233

Score

9^/10

evasion

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

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

Processes:

rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	rundll32.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Wine rundll32.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

rundll32.exe

pid process

4180 rundll32.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

4180 rundll32.exe
4180 rundll32.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Wine	rundll32.exe

pid	process
4180	rundll32.exe

pid	process
4180	rundll32.exe
4180	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3684 wrote to memory of 4180	3684	rundll32.exe	rundll32.exe
PID 3684 wrote to memory of 4180	3684	rundll32.exe	rundll32.exe
PID 3684 wrote to memory of 4180	3684	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7d40339fca72718ec77ca4cad6d611f13cae059a53c0870446761a80dff1f115.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3684

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7d40339fca72718ec77ca4cad6d611f13cae059a53c0870446761a80dff1f115.dll,#1
2⤵
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:4180

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/4180-130-0x0000000000000000-mapping.dmp

Download
memory/4180-131-0x00000000007C0000-0x000000000085D000-memory.dmp

Filesize
628KB

Download
memory/4180-132-0x00000000778A0000-0x0000000077A43000-memory.dmp

Filesize
1.6MB

Download