a0608f64719281ac9ae204a1a92e9c8cf44ab30e6525b7f1f565e3cba6051221

General

Target

XI3PV3M1PUUSEXXBH3LKN91TRFIN1166ZD2.dll
Size

8.4MB
MD5

43e7413c02debc49385ca0821350af55
SHA1

8835996015ee50ac50e6302c6af3fb6582f9ab5e
SHA256

433811102726bc15416ca338a2df55ec1daaf3f2565ee00d7f6484064746fb30
SHA512

65945f240287cc6e43efd4dc93c58dfd2240f820a5d01bd4a869ebc48c5d8596809e8f16b12afdd18374021e8209794f1bd3e53ab2ad2d7bbacb2bca6d9e626a

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 9 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral3/memory/2000-56-0x0000000001E30000-0x0000000003063000-memory.dmp	themida
behavioral3/memory/2000-57-0x0000000001E30000-0x0000000003063000-memory.dmp	themida
behavioral3/memory/2000-58-0x0000000001E30000-0x0000000003063000-memory.dmp	themida
behavioral3/memory/2000-60-0x0000000001E30000-0x0000000003063000-memory.dmp	themida
behavioral3/memory/2000-61-0x0000000001E30000-0x0000000003063000-memory.dmp	themida
behavioral3/memory/2000-62-0x0000000001E30000-0x0000000003063000-memory.dmp	themida
behavioral3/memory/2000-63-0x0000000001E30000-0x0000000003063000-memory.dmp	themida
behavioral3/memory/2000-64-0x0000000001E30000-0x0000000003063000-memory.dmp	themida
behavioral3/memory/2000-65-0x0000000001E30000-0x0000000003063000-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

2000 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

1216 2000 WerFault.exe rundll32.exe

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

pid	process
2000	rundll32.exe

pid	pid_target	process	target process
1216	2000	WerFault.exe	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1924 wrote to memory of 2000	1924	rundll32.exe	rundll32.exe
PID 1924 wrote to memory of 2000	1924	rundll32.exe	rundll32.exe
PID 1924 wrote to memory of 2000	1924	rundll32.exe	rundll32.exe
PID 1924 wrote to memory of 2000	1924	rundll32.exe	rundll32.exe
PID 1924 wrote to memory of 2000	1924	rundll32.exe	rundll32.exe
PID 1924 wrote to memory of 2000	1924	rundll32.exe	rundll32.exe
PID 1924 wrote to memory of 2000	1924	rundll32.exe	rundll32.exe
PID 2000 wrote to memory of 1216	2000	rundll32.exe	WerFault.exe
PID 2000 wrote to memory of 1216	2000	rundll32.exe	WerFault.exe
PID 2000 wrote to memory of 1216	2000	rundll32.exe	WerFault.exe
PID 2000 wrote to memory of 1216	2000	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\XI3PV3M1PUUSEXXBH3LKN91TRFIN1166ZD2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1924

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\XI3PV3M1PUUSEXXBH3LKN91TRFIN1166ZD2.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:2000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2000 -s 604
3⤵
- Program crash
PID:1216

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1216-66-0x0000000000000000-mapping.dmp

Download
memory/2000-60-0x0000000001E30000-0x0000000003063000-memory.dmp

Filesize
18.2MB

Download
memory/2000-56-0x0000000001E30000-0x0000000003063000-memory.dmp

Filesize
18.2MB

Download
memory/2000-57-0x0000000001E30000-0x0000000003063000-memory.dmp

Filesize
18.2MB

Download
memory/2000-58-0x0000000001E30000-0x0000000003063000-memory.dmp

Filesize
18.2MB

Download
memory/2000-59-0x0000000077400000-0x0000000077580000-memory.dmp

Filesize
1.5MB

Download
memory/2000-54-0x0000000000000000-mapping.dmp

Download
memory/2000-61-0x0000000001E30000-0x0000000003063000-memory.dmp

Filesize
18.2MB

Download
memory/2000-62-0x0000000001E30000-0x0000000003063000-memory.dmp

Filesize
18.2MB

Download
memory/2000-63-0x0000000001E30000-0x0000000003063000-memory.dmp

Filesize
18.2MB

Download
memory/2000-64-0x0000000001E30000-0x0000000003063000-memory.dmp

Filesize
18.2MB

Download
memory/2000-65-0x0000000001E30000-0x0000000003063000-memory.dmp

Filesize
18.2MB

Download
memory/2000-55-0x00000000756B1000-0x00000000756B3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads