2ccc3770e768afacc479ead684a2747f4a72d9dd1371a57f8dcfe34ec8a7f3e9

Analysis

max time kernel
90s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
resource tags

arch:x64arch:x86image:win10v2004-20220414-enlocale:en-usos:windows10-2004-x64system
submitted
18-07-2022 18:43

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

qcinsexysb.dll
Size

9.9MB
MD5

8f8cc66ab8a83673475e5597ab867517
SHA1

9d471773847057617eb35d1a5ef3d2494f0eedb2
SHA256

8cdbfc4afb7da7c07afa3830b0013c18fb0783d0ab04876b56a2128243b225a7
SHA512

ac1fc0fa07013d9b4327451720ebc36c0a0ba5124245f83df4d34b3065588f18cefd622fb01a6f77e56c22b75b91d28338537189512c7f70cf317d647ac90db4

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
behavioral4/memory/2188-132-0x0000000002AA0000-0x0000000004531000-memory.dmp	themida
behavioral4/memory/2188-133-0x0000000002AA0000-0x0000000004531000-memory.dmp	themida
behavioral4/memory/2188-134-0x0000000002AA0000-0x0000000004531000-memory.dmp	themida
behavioral4/memory/2188-135-0x0000000002AA0000-0x0000000004531000-memory.dmp	themida
behavioral4/memory/2188-136-0x0000000002AA0000-0x0000000004531000-memory.dmp	themida
behavioral4/memory/2188-137-0x0000000002AA0000-0x0000000004531000-memory.dmp	themida
behavioral4/memory/2188-138-0x0000000002AA0000-0x0000000004531000-memory.dmp	themida
behavioral4/memory/2188-139-0x0000000002AA0000-0x0000000004531000-memory.dmp	themida
behavioral4/memory/2188-140-0x0000000002AA0000-0x0000000004531000-memory.dmp	themida
behavioral4/memory/2188-141-0x0000000002AA0000-0x0000000004531000-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

2188 rundll32.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

688 2188 WerFault.exe rundll32.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

2188 rundll32.exe
2188 rundll32.exe

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

pid	process
2188	rundll32.exe

pid	pid_target	process	target process
688	2188	WerFault.exe	rundll32.exe

pid	process
2188	rundll32.exe
2188	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4160 wrote to memory of 2188	4160	rundll32.exe	rundll32.exe
PID 4160 wrote to memory of 2188	4160	rundll32.exe	rundll32.exe
PID 4160 wrote to memory of 2188	4160	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\qcinsexysb.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4160

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\qcinsexysb.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 behavior: EnumeratesProcesses
PID:2188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2188 -s 792
3⤵
- Program crash
PID:688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 2188 -ip 2188
1⤵
PID:2988

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2188-130-0x0000000000000000-mapping.dmp

Download
memory/2188-131-0x0000000077580000-0x0000000077723000-memory.dmp

Filesize
1.6MB

Download
memory/2188-132-0x0000000002AA0000-0x0000000004531000-memory.dmp

Filesize
26.6MB

Download
memory/2188-133-0x0000000002AA0000-0x0000000004531000-memory.dmp

Filesize
26.6MB

Download
memory/2188-134-0x0000000002AA0000-0x0000000004531000-memory.dmp

Filesize
26.6MB

Download
memory/2188-135-0x0000000002AA0000-0x0000000004531000-memory.dmp

Filesize
26.6MB

Download
memory/2188-136-0x0000000002AA0000-0x0000000004531000-memory.dmp

Filesize
26.6MB

Download
memory/2188-137-0x0000000002AA0000-0x0000000004531000-memory.dmp

Filesize
26.6MB

Download
memory/2188-138-0x0000000002AA0000-0x0000000004531000-memory.dmp

Filesize
26.6MB

Download
memory/2188-139-0x0000000002AA0000-0x0000000004531000-memory.dmp

Filesize
26.6MB

Download
memory/2188-140-0x0000000002AA0000-0x0000000004531000-memory.dmp

Filesize
26.6MB

Download
memory/2188-141-0x0000000002AA0000-0x0000000004531000-memory.dmp

Filesize
26.6MB

Download
memory/2188-142-0x0000000077580000-0x0000000077723000-memory.dmp

Filesize
1.6MB

Download
memory/2188-143-0x0000000077580000-0x0000000077723000-memory.dmp

Filesize
1.6MB

Download