shurk | 94141aec3dfffe3c6a1d3576cb17a6d989ef4404554e07ad6ae0b6d5ec584641

General

Target

94141aec3dfffe3c6a1d3576cb17a6d989ef4404554e07ad6ae0b6d5ec584641.exe
Size

6.8MB
MD5

6dfbff479749aa55936778d5cf94ec1f
SHA1

bbfcd9bc7d4bf178980b3ae2e434a77cd2447401
SHA256

94141aec3dfffe3c6a1d3576cb17a6d989ef4404554e07ad6ae0b6d5ec584641
SHA512

edf2b80a21d1b61ea4d0b9f4522020bfb573c22004181b84cd904b6296466d21e85649aae92bef2766fe3e983852ee0117944e238a67fe817dc53efd006ddf93

Score

10^/10

shurk evasion infostealer spyware stealer themida trojan

Malware Config

Signatures

Shurk
Shurk is an infostealer, written in C++ which appeared in 2021.
infostealer shurk

Shurk Stealer Payload 6 IoCs

resource	yara_rule
behavioral1/memory/2044-57-0x0000000000870000-0x0000000001396000-memory.dmp	shurk_stealer
behavioral1/memory/2044-58-0x0000000000870000-0x0000000001396000-memory.dmp	shurk_stealer
behavioral1/memory/2044-59-0x0000000000870000-0x0000000001396000-memory.dmp	shurk_stealer
behavioral1/memory/2044-61-0x0000000000870000-0x0000000001396000-memory.dmp	shurk_stealer
behavioral1/memory/2044-60-0x0000000000870000-0x0000000001396000-memory.dmp	shurk_stealer
behavioral1/memory/2044-62-0x0000000000870000-0x0000000001396000-memory.dmp	shurk_stealer

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	94141aec3dfffe3c6a1d3576cb17a6d989ef4404554e07ad6ae0b6d5ec584641.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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	94141aec3dfffe3c6a1d3576cb17a6d989ef4404554e07ad6ae0b6d5ec584641.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	94141aec3dfffe3c6a1d3576cb17a6d989ef4404554e07ad6ae0b6d5ec584641.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Themida packer 7 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/2044-55-0x0000000000870000-0x0000000001396000-memory.dmp	themida
behavioral1/memory/2044-57-0x0000000000870000-0x0000000001396000-memory.dmp	themida
behavioral1/memory/2044-58-0x0000000000870000-0x0000000001396000-memory.dmp	themida
behavioral1/memory/2044-59-0x0000000000870000-0x0000000001396000-memory.dmp	themida
behavioral1/memory/2044-61-0x0000000000870000-0x0000000001396000-memory.dmp	themida
behavioral1/memory/2044-60-0x0000000000870000-0x0000000001396000-memory.dmp	themida
behavioral1/memory/2044-62-0x0000000000870000-0x0000000001396000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	94141aec3dfffe3c6a1d3576cb17a6d989ef4404554e07ad6ae0b6d5ec584641.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2044	94141aec3dfffe3c6a1d3576cb17a6d989ef4404554e07ad6ae0b6d5ec584641.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2044	94141aec3dfffe3c6a1d3576cb17a6d989ef4404554e07ad6ae0b6d5ec584641.exe

C:\Users\Admin\AppData\Local\Temp\94141aec3dfffe3c6a1d3576cb17a6d989ef4404554e07ad6ae0b6d5ec584641.exe
"C:\Users\Admin\AppData\Local\Temp\94141aec3dfffe3c6a1d3576cb17a6d989ef4404554e07ad6ae0b6d5ec584641.exe"
1⤵
- 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:2044

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/2044-54-0x0000000075841000-0x0000000075843000-memory.dmp

Filesize
8KB

Download
memory/2044-55-0x0000000000870000-0x0000000001396000-memory.dmp

Filesize
11.1MB

Download
memory/2044-56-0x0000000077790000-0x0000000077910000-memory.dmp

Filesize
1.5MB

Download
memory/2044-57-0x0000000000870000-0x0000000001396000-memory.dmp

Filesize
11.1MB

Download
memory/2044-58-0x0000000000870000-0x0000000001396000-memory.dmp

Filesize
11.1MB

Download
memory/2044-59-0x0000000000870000-0x0000000001396000-memory.dmp

Filesize
11.1MB

Download
memory/2044-61-0x0000000000870000-0x0000000001396000-memory.dmp

Filesize
11.1MB

Download
memory/2044-60-0x0000000000870000-0x0000000001396000-memory.dmp

Filesize
11.1MB

Download
memory/2044-62-0x0000000000870000-0x0000000001396000-memory.dmp

Filesize
11.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads