21dc7691541ed4ad6308edc5ea7d0fc002ff68e892193c7437ed1ca314bc8972

Analysis

max time kernel
44s
max time network
50s
platform
windows7_x64
resource
win7-20220414-en
submitted
20-05-2022 03:05

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General

Target

Truck_Simulator_2_v1.30.0.12s__14_Trainer.exe
Size

4.5MB
MD5

5e5cb405fe00fce0170ff03b6c27de65
SHA1

b71ba01901946acf3dd9c607b0ab744b9bb2d8b3
SHA256

5edbe1c8a1323e88fdf95f31c9f72bb25d1ea67e71ac532540c79cf9f25d838f
SHA512

272f1457cf8f843ca00281347fd25a29840e7711773dbd60e1b923df3f2040f7720cd17dfe5c5fc8262fe8e0e03fc0334ac9b99abe6dac8d193d214fb221dea0

Score

7^/10

bootkit persistence

Malware Config

Signatures

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:

Truck_Simulator_2_v1.30.0.12s__14_Trainer.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Truck_Simulator_2_v1.30.0.12s__14_Trainer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Truck_Simulator_2_v1.30.0.12s__14_Trainer.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1067

Processes:

Truck_Simulator_2_v1.30.0.12s__14_Trainer.exe

description ioc process

File opened for modification \??\PhysicalDrive0 Truck_Simulator_2_v1.30.0.12s__14_Trainer.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1620 1828 WerFault.exe Truck_Simulator_2_v1.30.0.12s__14_Trainer.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	Truck_Simulator_2_v1.30.0.12s__14_Trainer.exe

pid	pid_target	process	target process
1620	1828	WerFault.exe	Truck_Simulator_2_v1.30.0.12s__14_Trainer.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

Truck_Simulator_2_v1.30.0.12s__14_Trainer.exe

description	pid	process	target process
PID 1828 wrote to memory of 1620	1828	Truck_Simulator_2_v1.30.0.12s__14_Trainer.exe	WerFault.exe
PID 1828 wrote to memory of 1620	1828	Truck_Simulator_2_v1.30.0.12s__14_Trainer.exe	WerFault.exe
PID 1828 wrote to memory of 1620	1828	Truck_Simulator_2_v1.30.0.12s__14_Trainer.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\Truck_Simulator_2_v1.30.0.12s__14_Trainer.exe
"C:\Users\Admin\AppData\Local\Temp\Truck_Simulator_2_v1.30.0.12s__14_Trainer.exe"
1⤵
- Checks BIOS information in registry
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
PID:1828

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1828 -s 680
2⤵
- Program crash
PID:1620

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1620-55-0x0000000000000000-mapping.dmp

Download
memory/1828-54-0x0000000077A90000-0x0000000077C39000-memory.dmp

Filesize
1.7MB

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