9d83407d96e73e7fa042dc1c0d80c9de04ef22621c14a712b552ebc34e119919

General

Target

8CE0B787ADB620218110DC79B3043045.dll
Size

7.8MB
MD5

8ce0b787adb620218110dc79b3043045
SHA1

e79787710f4661eb02f6f408d0e2d7707e8f4395
SHA256

9d83407d96e73e7fa042dc1c0d80c9de04ef22621c14a712b552ebc34e119919
SHA512

c6924db3a4f92e75ff8a7d5bc032447164491fac9714ad45dd0ecd9f6c7372e4804dff9a6851d8810b91675fdeac3760dc1a1cbd3031a21a9d3b152f13e728fd

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 4 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/268-56-0x0000000001FC0000-0x000000000347B000-memory.dmp	themida
behavioral1/memory/268-58-0x0000000001FC0000-0x000000000347B000-memory.dmp	themida
behavioral1/memory/268-59-0x0000000001FC0000-0x000000000347B000-memory.dmp	themida
behavioral1/memory/268-60-0x0000000001FC0000-0x000000000347B000-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

268 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

1472 268 WerFault.exe rundll32.exe

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

pid	process
268	rundll32.exe

pid	pid_target	process	target process
1472	268	WerFault.exe	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 516 wrote to memory of 268	516	rundll32.exe	rundll32.exe
PID 516 wrote to memory of 268	516	rundll32.exe	rundll32.exe
PID 516 wrote to memory of 268	516	rundll32.exe	rundll32.exe
PID 516 wrote to memory of 268	516	rundll32.exe	rundll32.exe
PID 516 wrote to memory of 268	516	rundll32.exe	rundll32.exe
PID 516 wrote to memory of 268	516	rundll32.exe	rundll32.exe
PID 516 wrote to memory of 268	516	rundll32.exe	rundll32.exe
PID 268 wrote to memory of 1472	268	rundll32.exe	WerFault.exe
PID 268 wrote to memory of 1472	268	rundll32.exe	WerFault.exe
PID 268 wrote to memory of 1472	268	rundll32.exe	WerFault.exe
PID 268 wrote to memory of 1472	268	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8CE0B787ADB620218110DC79B3043045.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:516

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8CE0B787ADB620218110DC79B3043045.dll,#1
2⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 268 -s 628
3⤵
- Program crash
PID:1472

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/268-55-0x0000000075191000-0x0000000075193000-memory.dmp

Filesize
8KB

Download
memory/268-56-0x0000000001FC0000-0x000000000347B000-memory.dmp

Filesize
20.7MB

Download
memory/268-57-0x0000000076EA0000-0x0000000076EA2000-memory.dmp

Filesize
8KB

Download
memory/268-58-0x0000000001FC0000-0x000000000347B000-memory.dmp

Filesize
20.7MB

Download
memory/268-59-0x0000000001FC0000-0x000000000347B000-memory.dmp

Filesize
20.7MB

Download
memory/268-60-0x0000000001FC0000-0x000000000347B000-memory.dmp

Filesize
20.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads