5cc29ce11d270c27e946ecc3bcd6b86123746e9c23f8cb41f6ea7e524d367c87

Analysis

max time kernel
21s
max time network
23s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
03-08-2022 22:19

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General

Target

hckiurcorx.dll
Size

7.7MB
MD5

aec4f489c61ed3b5d91471d3f9193afc
SHA1

af328f319c1c957cbbe3dfdf59f0b8431b2c1a8b
SHA256

5cc29ce11d270c27e946ecc3bcd6b86123746e9c23f8cb41f6ea7e524d367c87
SHA512

5cf8c7b5837c663d30f7501e4ed67c8b72cfef98dfb92558ad40565b27145088f26cc5a5243dcf3bd6c2911e2dabf8140335e79e25e26eaa1ce42e462017b2bc

Score

9^/10

evasion themida trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	rundll32.exe

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 10 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/3508-132-0x0000000002A50000-0x0000000003DDD000-memory.dmp	themida
behavioral2/memory/3508-133-0x0000000002A50000-0x0000000003DDD000-memory.dmp	themida
behavioral2/memory/3508-134-0x0000000002A50000-0x0000000003DDD000-memory.dmp	themida
behavioral2/memory/3508-135-0x0000000002A50000-0x0000000003DDD000-memory.dmp	themida
behavioral2/memory/3508-136-0x0000000002A50000-0x0000000003DDD000-memory.dmp	themida
behavioral2/memory/3508-137-0x0000000002A50000-0x0000000003DDD000-memory.dmp	themida
behavioral2/memory/3508-138-0x0000000002A50000-0x0000000003DDD000-memory.dmp	themida
behavioral2/memory/3508-139-0x0000000002A50000-0x0000000003DDD000-memory.dmp	themida
behavioral2/memory/3508-140-0x0000000002A50000-0x0000000003DDD000-memory.dmp	themida
behavioral2/memory/3508-141-0x0000000002A50000-0x0000000003DDD000-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

3508 rundll32.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3020 3508 WerFault.exe rundll32.exe

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

pid	process
3508	rundll32.exe

pid	pid_target	process	target process
3020	3508	WerFault.exe	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4324 wrote to memory of 3508	4324	rundll32.exe	rundll32.exe
PID 4324 wrote to memory of 3508	4324	rundll32.exe	rundll32.exe
PID 4324 wrote to memory of 3508	4324	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\hckiurcorx.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4324

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\hckiurcorx.dll,#1
2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:3508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3508 -s 776
3⤵
- Program crash
PID:3020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3508 -ip 3508
1⤵
PID:3948

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/3508-130-0x0000000000000000-mapping.dmp

Download
memory/3508-131-0x0000000077980000-0x0000000077B23000-memory.dmp

Filesize
1.6MB

Download
memory/3508-132-0x0000000002A50000-0x0000000003DDD000-memory.dmp

Filesize
19.6MB

Download
memory/3508-133-0x0000000002A50000-0x0000000003DDD000-memory.dmp

Filesize
19.6MB

Download
memory/3508-134-0x0000000002A50000-0x0000000003DDD000-memory.dmp

Filesize
19.6MB

Download
memory/3508-135-0x0000000002A50000-0x0000000003DDD000-memory.dmp

Filesize
19.6MB

Download
memory/3508-136-0x0000000002A50000-0x0000000003DDD000-memory.dmp

Filesize
19.6MB

Download
memory/3508-137-0x0000000002A50000-0x0000000003DDD000-memory.dmp

Filesize
19.6MB

Download
memory/3508-138-0x0000000002A50000-0x0000000003DDD000-memory.dmp

Filesize
19.6MB

Download
memory/3508-139-0x0000000002A50000-0x0000000003DDD000-memory.dmp

Filesize
19.6MB

Download
memory/3508-140-0x0000000002A50000-0x0000000003DDD000-memory.dmp

Filesize
19.6MB

Download
memory/3508-141-0x0000000002A50000-0x0000000003DDD000-memory.dmp

Filesize
19.6MB

Download
memory/3508-142-0x0000000077980000-0x0000000077B23000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads