cfba16fa9aa7fdc7b744b2832ef65558d8d9934171f0d6e902e7a423d800b50f

Analysis

max time kernel
73s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
21-05-2022 19:23

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General

Target

cfba16fa9aa7fdc7b744b2832ef65558d8d9934171f0d6e902e7a423d800b50f.dll
Size

2.4MB
MD5

cd9f18209f2d8ef60e8199662b2ea120
SHA1

bbf36d27902a379ae5e204babde0cb330934a6cc
SHA256

cfba16fa9aa7fdc7b744b2832ef65558d8d9934171f0d6e902e7a423d800b50f
SHA512

621d3d82f04aebb6cf4ffc7e012ddfc05c1bd677eb3b018a8b37bec6812762d2b6617bcb7c9af4fe235a43219b1b20aeb84e677cd3899840c4a24ce548b70586

Score

9^/10

evasion trojan

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

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

rundll32.exe

pid process

2912 rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

pid	process
2912	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1988 wrote to memory of 2912	1988	rundll32.exe	rundll32.exe
PID 1988 wrote to memory of 2912	1988	rundll32.exe	rundll32.exe
PID 1988 wrote to memory of 2912	1988	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cfba16fa9aa7fdc7b744b2832ef65558d8d9934171f0d6e902e7a423d800b50f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1988

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cfba16fa9aa7fdc7b744b2832ef65558d8d9934171f0d6e902e7a423d800b50f.dll,#1
2⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:2912

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

Replay Monitor

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Downloads

memory/2912-130-0x0000000000000000-mapping.dmp

Download
memory/2912-131-0x0000000010001000-0x0000000010005000-memory.dmp

Filesize
16KB

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memory/2912-132-0x00000000779E0000-0x0000000077B83000-memory.dmp

Filesize
1.6MB

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