aeed49c65295513b0254559128415e516ffe4491b4038183965225251e9813b6

General

Target

BJEBEL9UBFA2EIDN5GRFS5C09QO1YYW0K19TF9E.dll
Size

8.5MB
MD5

43f089b7855dfe47e1dfe348445b5865
SHA1

8b20f11e27be02a8bda40ca9f48603e7adfd76de
SHA256

33ffacc3e517f4f1dad47f1ca28d26188e202d5e2e300e1e71bc0a57e682292a
SHA512

8a7f7a2dc536849f9452317ace271c398a623be305d74c4c0ea4acbdcb9a314a407d5075fadb41637ef751b1cee517e1df11c9d9f180fd016337f54103fa5fd8

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 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/4468-131-0x0000000002010000-0x000000000325E000-memory.dmp	themida
behavioral2/memory/4468-132-0x0000000002010000-0x000000000325E000-memory.dmp	themida
behavioral2/memory/4468-134-0x0000000002010000-0x000000000325E000-memory.dmp	themida
behavioral2/memory/4468-135-0x0000000002010000-0x000000000325E000-memory.dmp	themida
behavioral2/memory/4468-136-0x0000000002010000-0x000000000325E000-memory.dmp	themida
behavioral2/memory/4468-137-0x0000000002010000-0x000000000325E000-memory.dmp	themida
behavioral2/memory/4468-138-0x0000000002010000-0x000000000325E000-memory.dmp	themida
behavioral2/memory/4468-139-0x0000000002010000-0x000000000325E000-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

4468 rundll32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2500 4468 WerFault.exe rundll32.exe

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

pid	process
4468	rundll32.exe

pid	pid_target	process	target process
2500	4468	WerFault.exe	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2824 wrote to memory of 4468	2824	rundll32.exe	rundll32.exe
PID 2824 wrote to memory of 4468	2824	rundll32.exe	rundll32.exe
PID 2824 wrote to memory of 4468	2824	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\BJEBEL9UBFA2EIDN5GRFS5C09QO1YYW0K19TF9E.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2824

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\BJEBEL9UBFA2EIDN5GRFS5C09QO1YYW0K19TF9E.dll,#1
2⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:4468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4468 -s 1104
3⤵
- Program crash
PID:2500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4468 -ip 4468
1⤵
PID:2336

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/4468-130-0x0000000000000000-mapping.dmp

Download
memory/4468-131-0x0000000002010000-0x000000000325E000-memory.dmp

Filesize
18.3MB

Download
memory/4468-133-0x0000000077DD0000-0x0000000077F73000-memory.dmp

Filesize
1.6MB

Download
memory/4468-132-0x0000000002010000-0x000000000325E000-memory.dmp

Filesize
18.3MB

Download
memory/4468-134-0x0000000002010000-0x000000000325E000-memory.dmp

Filesize
18.3MB

Download
memory/4468-135-0x0000000002010000-0x000000000325E000-memory.dmp

Filesize
18.3MB

Download
memory/4468-136-0x0000000002010000-0x000000000325E000-memory.dmp

Filesize
18.3MB

Download
memory/4468-137-0x0000000002010000-0x000000000325E000-memory.dmp

Filesize
18.3MB

Download
memory/4468-138-0x0000000002010000-0x000000000325E000-memory.dmp

Filesize
18.3MB

Download
memory/4468-139-0x0000000002010000-0x000000000325E000-memory.dmp

Filesize
18.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads