235044f58c801955ed496f8c84712fdb353fdd9b6fda91886262234bdb710614

Analysis

max time kernel
106s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
21-05-2022 19:24

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General

Target

235044f58c801955ed496f8c84712fdb353fdd9b6fda91886262234bdb710614.dll
Size

2.4MB
MD5

5fba3cbc31c7b28b763817636f2b1a38
SHA1

992ee97e64491206e829ba40377f5a9878008414
SHA256

235044f58c801955ed496f8c84712fdb353fdd9b6fda91886262234bdb710614
SHA512

752d4aacd5482c38b1385ca0746c88bf857110bd79ec23add069b1520b792b612e1ec94a1914eeddeaed0c3d0e04db3a64744c5d734cf53f4fdf41d40b1580e6

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

4720 rundll32.exe

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

pid	process
4720	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4696 wrote to memory of 4720	4696	rundll32.exe	rundll32.exe
PID 4696 wrote to memory of 4720	4696	rundll32.exe	rundll32.exe
PID 4696 wrote to memory of 4720	4696	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\235044f58c801955ed496f8c84712fdb353fdd9b6fda91886262234bdb710614.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4696

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\235044f58c801955ed496f8c84712fdb353fdd9b6fda91886262234bdb710614.dll,#1
2⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:4720

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/4720-130-0x0000000000000000-mapping.dmp

Download
memory/4720-131-0x0000000010001000-0x0000000010005000-memory.dmp

Filesize
16KB

Download
memory/4720-132-0x00000000773C0000-0x0000000077563000-memory.dmp

Filesize
1.6MB

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