b4736b94230d53ab0aa384868b7b00fa07427e18b9e8171f7b48c46ef2481c58

General

Target

9fbdc3eb3cdb9d01986fe1c7391c35f3.dll
Size

14.9MB
MD5

9fbdc3eb3cdb9d01986fe1c7391c35f3
SHA1

f8f72269cc647c6cad855fbc13aba400ef74d0d8
SHA256

b4736b94230d53ab0aa384868b7b00fa07427e18b9e8171f7b48c46ef2481c58
SHA512

a0921088358285f5c71e14c801fe6ba2960bae71ceb4cbba7f1e81ebd581efce4c7d68f59e7ebf21d41246936809f1fd6a5f5ceeacc73e5c818a8cddf9b45e11

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 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2020-56-0x0000000001F20000-0x0000000003556000-memory.dmp	themida
behavioral1/memory/2020-57-0x0000000001F20000-0x0000000003556000-memory.dmp	themida
behavioral1/memory/2020-58-0x0000000001F20000-0x0000000003556000-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

2020 rundll32.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1356 2020 WerFault.exe rundll32.exe

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

pid	process
2020	rundll32.exe

pid	pid_target	process	target process
1356	2020	WerFault.exe	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1312 wrote to memory of 2020	1312	rundll32.exe	rundll32.exe
PID 1312 wrote to memory of 2020	1312	rundll32.exe	rundll32.exe
PID 1312 wrote to memory of 2020	1312	rundll32.exe	rundll32.exe
PID 1312 wrote to memory of 2020	1312	rundll32.exe	rundll32.exe
PID 1312 wrote to memory of 2020	1312	rundll32.exe	rundll32.exe
PID 1312 wrote to memory of 2020	1312	rundll32.exe	rundll32.exe
PID 1312 wrote to memory of 2020	1312	rundll32.exe	rundll32.exe
PID 2020 wrote to memory of 1356	2020	rundll32.exe	WerFault.exe
PID 2020 wrote to memory of 1356	2020	rundll32.exe	WerFault.exe
PID 2020 wrote to memory of 1356	2020	rundll32.exe	WerFault.exe
PID 2020 wrote to memory of 1356	2020	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9fbdc3eb3cdb9d01986fe1c7391c35f3.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1312

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9fbdc3eb3cdb9d01986fe1c7391c35f3.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:2020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2020 -s 324
3⤵
- Program crash
PID:1356

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

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1356-60-0x0000000000000000-mapping.dmp

Download
memory/2020-54-0x0000000000000000-mapping.dmp

Download
memory/2020-55-0x0000000076451000-0x0000000076453000-memory.dmp

Filesize
8KB

Download
memory/2020-56-0x0000000001F20000-0x0000000003556000-memory.dmp

Filesize
22.2MB

Download
memory/2020-57-0x0000000001F20000-0x0000000003556000-memory.dmp

Filesize
22.2MB

Download
memory/2020-58-0x0000000001F20000-0x0000000003556000-memory.dmp

Filesize
22.2MB

Download
memory/2020-59-0x0000000077750000-0x00000000778D0000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads