4a68f0ad3c0758aeae9675c4b62260922a0f09cdfd5721bfd25fbf12b00db614

General

Target

4a68f0ad3c0758aeae9675c4b62260922a0f09cdfd5721bfd25fbf12b00db614.dll
Size

9.2MB
MD5

1a515d2f5cadf1adf6ef13625777f9cb
SHA1

5633963055415e954fda91653d172084cc32af19
SHA256

4a68f0ad3c0758aeae9675c4b62260922a0f09cdfd5721bfd25fbf12b00db614
SHA512

fafce093d869d2405b08289c7b24b8f92d7a1c8ecc5adf55d48efdbdc67c43dc8cc8855f84f60212220eac377b550e00e10e10aebbf8dd38c88764ffc5ff430c

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/872-57-0x0000000001DC0000-0x0000000003622000-memory.dmp	themida
behavioral1/memory/872-58-0x0000000001DC0000-0x0000000003622000-memory.dmp	themida
behavioral1/memory/872-59-0x0000000001DC0000-0x0000000003622000-memory.dmp	themida
behavioral1/memory/872-60-0x0000000001DC0000-0x0000000003622000-memory.dmp	themida
behavioral1/memory/872-61-0x0000000001DC0000-0x0000000003622000-memory.dmp	themida
behavioral1/memory/872-62-0x0000000001DC0000-0x0000000003622000-memory.dmp	themida
behavioral1/memory/872-63-0x0000000001DC0000-0x0000000003622000-memory.dmp	themida
behavioral1/memory/872-64-0x0000000001DC0000-0x0000000003622000-memory.dmp	themida
behavioral1/memory/872-65-0x0000000001DC0000-0x0000000003622000-memory.dmp	themida
behavioral1/memory/872-66-0x0000000001DC0000-0x0000000003622000-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

872 rundll32.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

952 872 WerFault.exe rundll32.exe

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

pid	process
872	rundll32.exe

pid	pid_target	process	target process
952	872	WerFault.exe	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 756 wrote to memory of 872	756	rundll32.exe	rundll32.exe
PID 756 wrote to memory of 872	756	rundll32.exe	rundll32.exe
PID 756 wrote to memory of 872	756	rundll32.exe	rundll32.exe
PID 756 wrote to memory of 872	756	rundll32.exe	rundll32.exe
PID 756 wrote to memory of 872	756	rundll32.exe	rundll32.exe
PID 756 wrote to memory of 872	756	rundll32.exe	rundll32.exe
PID 756 wrote to memory of 872	756	rundll32.exe	rundll32.exe
PID 872 wrote to memory of 952	872	rundll32.exe	WerFault.exe
PID 872 wrote to memory of 952	872	rundll32.exe	WerFault.exe
PID 872 wrote to memory of 952	872	rundll32.exe	WerFault.exe
PID 872 wrote to memory of 952	872	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4a68f0ad3c0758aeae9675c4b62260922a0f09cdfd5721bfd25fbf12b00db614.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:756

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4a68f0ad3c0758aeae9675c4b62260922a0f09cdfd5721bfd25fbf12b00db614.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:872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 316
3⤵
- Program crash
PID:952

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

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Downloads

memory/872-54-0x0000000000000000-mapping.dmp

Download
memory/872-55-0x00000000763E1000-0x00000000763E3000-memory.dmp

Filesize
8KB

Download
memory/872-56-0x0000000077490000-0x0000000077610000-memory.dmp

Filesize
1.5MB

Download
memory/872-57-0x0000000001DC0000-0x0000000003622000-memory.dmp

Filesize
24.4MB

Download
memory/872-58-0x0000000001DC0000-0x0000000003622000-memory.dmp

Filesize
24.4MB

Download
memory/872-59-0x0000000001DC0000-0x0000000003622000-memory.dmp

Filesize
24.4MB

Download
memory/872-60-0x0000000001DC0000-0x0000000003622000-memory.dmp

Filesize
24.4MB

Download
memory/872-61-0x0000000001DC0000-0x0000000003622000-memory.dmp

Filesize
24.4MB

Download
memory/872-62-0x0000000001DC0000-0x0000000003622000-memory.dmp

Filesize
24.4MB

Download
memory/872-63-0x0000000001DC0000-0x0000000003622000-memory.dmp

Filesize
24.4MB

Download
memory/872-64-0x0000000001DC0000-0x0000000003622000-memory.dmp

Filesize
24.4MB

Download
memory/872-65-0x0000000001DC0000-0x0000000003622000-memory.dmp

Filesize
24.4MB

Download
memory/872-66-0x0000000001DC0000-0x0000000003622000-memory.dmp

Filesize
24.4MB

Download
memory/952-67-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads