19939221b42945f254c280e7029b02a397e9e3d78e200293bf3c8f2ec4400a5c

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-en-20211208
submitted
30-01-2022 17:08

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General

Target

19939221b42945f254c280e7029b02a397e9e3d78e200293bf3c8f2ec4400a5c.dll
Size

3.0MB
MD5

2934a7a0dfaf2ebc81b1f089277129c4
SHA1

4378996bbb7be3a805d77899a98ff7ac62933c0e
SHA256

19939221b42945f254c280e7029b02a397e9e3d78e200293bf3c8f2ec4400a5c
SHA512

98f7e56e6a7408ee96020e0fd529b51aef742caaa9a422a5d731b351f88cbc6b5a5de04eb1c38fc12801a83dcc17b320a5e9e7aa35e77708de02fb9ba68e13d1

Score

9^/10

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

Themida packer 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1396-54-0x000007FEF52F0000-0x000007FEF5A67000-memory.dmp	themida
behavioral1/memory/1396-55-0x000007FEF52F0000-0x000007FEF5A67000-memory.dmp	themida
behavioral1/memory/1396-56-0x000007FEF52F0000-0x000007FEF5A67000-memory.dmp	themida

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

1396 rundll32.exe

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

pid	process
1396	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\19939221b42945f254c280e7029b02a397e9e3d78e200293bf3c8f2ec4400a5c.dll,#1
1⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:1396

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/1396-54-0x000007FEF52F0000-0x000007FEF5A67000-memory.dmp

Filesize
7.5MB

Download
memory/1396-55-0x000007FEF52F0000-0x000007FEF5A67000-memory.dmp

Filesize
7.5MB

Download
memory/1396-56-0x000007FEF52F0000-0x000007FEF5A67000-memory.dmp

Filesize
7.5MB

Download