9fb17c198578d1076691c00dc848fbf9f530fd0b167a5b838415ed3c8a999405

Analysis

max time kernel
117s
max time network
138s
platform
windows7_x64
resource
win7-en-20211208
submitted
30-01-2022 17:08

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General

Target

9fb17c198578d1076691c00dc848fbf9f530fd0b167a5b838415ed3c8a999405.dll
Size

3.4MB
MD5

2b7e434e52ff7480ae06ba901f8efbfd
SHA1

65d0d6cbd8a57793fb0043d58c7ededd132f7f39
SHA256

9fb17c198578d1076691c00dc848fbf9f530fd0b167a5b838415ed3c8a999405
SHA512

37934334b6cb09d3e03ddbde3cf03db76f5e1f7aec4d01c0e1b73edc1eb2e94b9db96dc236e669f68a90c99d46205a5da658129902ab7f65638b2d5101ac429a

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

Themida packer 4 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/612-55-0x000007FEF4290000-0x000007FEF4BA0000-memory.dmp	themida
behavioral1/memory/612-56-0x000007FEF4290000-0x000007FEF4BA0000-memory.dmp	themida
behavioral1/memory/612-57-0x000007FEF4290000-0x000007FEF4BA0000-memory.dmp	themida
behavioral1/memory/612-58-0x000007FEF4290000-0x000007FEF4BA0000-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 AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 612 rundll32.exe

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

description	pid	process
Token: SeDebugPrivilege	612	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9fb17c198578d1076691c00dc848fbf9f530fd0b167a5b838415ed3c8a999405.dll,#1
1⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of AdjustPrivilegeToken
PID:612

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/612-55-0x000007FEF4290000-0x000007FEF4BA0000-memory.dmp

Filesize
9.1MB

Download
memory/612-56-0x000007FEF4290000-0x000007FEF4BA0000-memory.dmp

Filesize
9.1MB

Download
memory/612-57-0x000007FEF4290000-0x000007FEF4BA0000-memory.dmp

Filesize
9.1MB

Download
memory/612-58-0x000007FEF4290000-0x000007FEF4BA0000-memory.dmp

Filesize
9.1MB

Download