5cc29ce11d270c27e946ecc3bcd6b86123746e9c23f8cb41f6ea7e524d367c87

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
behavioral1/memory/1108-56-0x0000000002210000-0x000000000359D000-memory.dmp	themida
behavioral1/memory/1108-58-0x0000000002210000-0x000000000359D000-memory.dmp	themida
behavioral1/memory/1108-59-0x0000000002210000-0x000000000359D000-memory.dmp	themida
behavioral1/memory/1108-60-0x0000000002210000-0x000000000359D000-memory.dmp	themida
behavioral1/memory/1108-61-0x0000000002210000-0x000000000359D000-memory.dmp	themida
behavioral1/memory/1108-62-0x0000000002210000-0x000000000359D000-memory.dmp	themida
behavioral1/memory/1108-63-0x0000000002210000-0x000000000359D000-memory.dmp	themida
behavioral1/memory/1108-64-0x0000000002210000-0x000000000359D000-memory.dmp	themida
behavioral1/memory/1108-65-0x0000000002210000-0x000000000359D000-memory.dmp	themida
behavioral1/memory/1108-66-0x0000000002210000-0x000000000359D000-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

1108 rundll32.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

944 1108 WerFault.exe rundll32.exe

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

pid	process
1108	rundll32.exe

pid	pid_target	process	target process
944	1108	WerFault.exe	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1112 wrote to memory of 1108	1112	rundll32.exe	rundll32.exe
PID 1112 wrote to memory of 1108	1112	rundll32.exe	rundll32.exe
PID 1112 wrote to memory of 1108	1112	rundll32.exe	rundll32.exe
PID 1112 wrote to memory of 1108	1112	rundll32.exe	rundll32.exe
PID 1112 wrote to memory of 1108	1112	rundll32.exe	rundll32.exe
PID 1112 wrote to memory of 1108	1112	rundll32.exe	rundll32.exe
PID 1112 wrote to memory of 1108	1112	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 944	1108	rundll32.exe	WerFault.exe
PID 1108 wrote to memory of 944	1108	rundll32.exe	WerFault.exe
PID 1108 wrote to memory of 944	1108	rundll32.exe	WerFault.exe
PID 1108 wrote to memory of 944	1108	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\hckiurcorx.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1112

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
- Suspicious use of WriteProcessMemory
PID:1108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1108 -s 336
3⤵
- Program crash
PID:944

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

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/944-67-0x0000000000000000-mapping.dmp

Download
memory/1108-60-0x0000000002210000-0x000000000359D000-memory.dmp

Filesize
19.6MB

Download
memory/1108-57-0x0000000077960000-0x0000000077AE0000-memory.dmp

Filesize
1.5MB

Download
memory/1108-56-0x0000000002210000-0x000000000359D000-memory.dmp

Filesize
19.6MB

Download
memory/1108-58-0x0000000002210000-0x000000000359D000-memory.dmp

Filesize
19.6MB

Download
memory/1108-59-0x0000000002210000-0x000000000359D000-memory.dmp

Filesize
19.6MB

Download
memory/1108-54-0x0000000000000000-mapping.dmp

Download
memory/1108-61-0x0000000002210000-0x000000000359D000-memory.dmp

Filesize
19.6MB

Download
memory/1108-62-0x0000000002210000-0x000000000359D000-memory.dmp

Filesize
19.6MB

Download
memory/1108-63-0x0000000002210000-0x000000000359D000-memory.dmp

Filesize
19.6MB

Download
memory/1108-64-0x0000000002210000-0x000000000359D000-memory.dmp

Filesize
19.6MB

Download
memory/1108-65-0x0000000002210000-0x000000000359D000-memory.dmp

Filesize
19.6MB

Download
memory/1108-66-0x0000000002210000-0x000000000359D000-memory.dmp

Filesize
19.6MB

Download
memory/1108-55-0x00000000753E1000-0x00000000753E3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads