3403923f1a151466a81c2c7a1fda617b7fbb43b1b8b0325e26e30ed06b6eb936

Analysis

max time kernel
43s
max time network
47s
platform
windows7_x64
resource
win7-20220414-en
submitted
21-05-2022 19:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3403923f1a151466a81c2c7a1fda617b7fbb43b1b8b0325e26e30ed06b6eb936.dll
Size

2.4MB
MD5

7a35502a5df5334c0ffde46303b1f56d
SHA1

5729508b725b7add8d2158aee2d0a3bc18a7a38a
SHA256

3403923f1a151466a81c2c7a1fda617b7fbb43b1b8b0325e26e30ed06b6eb936
SHA512

a460bc541f0b68ba5c5ddbea3f78e1e933c50a119baaba3b753ef44bf1e40802b88cd97205ae064c18dcfebb7d79a7acdf769c1327962a6b90d35fa9047d4ed7

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

660 rundll32.exe

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

pid	process
660	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1212 wrote to memory of 660	1212	rundll32.exe	rundll32.exe
PID 1212 wrote to memory of 660	1212	rundll32.exe	rundll32.exe
PID 1212 wrote to memory of 660	1212	rundll32.exe	rundll32.exe
PID 1212 wrote to memory of 660	1212	rundll32.exe	rundll32.exe
PID 1212 wrote to memory of 660	1212	rundll32.exe	rundll32.exe
PID 1212 wrote to memory of 660	1212	rundll32.exe	rundll32.exe
PID 1212 wrote to memory of 660	1212	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3403923f1a151466a81c2c7a1fda617b7fbb43b1b8b0325e26e30ed06b6eb936.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1212

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3403923f1a151466a81c2c7a1fda617b7fbb43b1b8b0325e26e30ed06b6eb936.dll,#1
2⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:660

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

Loading Replay Monitor...

Downloads

memory/660-54-0x0000000000000000-mapping.dmp

Download
memory/660-55-0x0000000075761000-0x0000000075763000-memory.dmp

Filesize
8KB

Download
memory/660-56-0x0000000010001000-0x0000000010005000-memory.dmp

Filesize
16KB

Download
memory/660-57-0x0000000077980000-0x0000000077B00000-memory.dmp

Filesize
1.5MB

Download