shurk | fecbec287420f4478ef41f68fc9db23c3653a95ff92d384f1eb6e1400306598d

General

Target

fecbec287420f4478ef41f68fc9db23c3653a95ff92d384f1eb6e1400306598d.exe
Size

2.6MB
MD5

0e6afcd095ed048bf3b058ff8dff868b
SHA1

f2a08a7c5b9bda0f1b224b40b653b495e6e4b777
SHA256

fecbec287420f4478ef41f68fc9db23c3653a95ff92d384f1eb6e1400306598d
SHA512

f878424d911ebce64934efa4563abe2a842841891de1bc79909022b8e6130cfe9108044fb600a389faa3916ba3f0a78163a18609f47de624a1c850dfe61df07b

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/780-55-0x0000000000D10000-0x00000000013DA000-memory.dmp	shurk_stealer
behavioral1/memory/780-56-0x0000000000D10000-0x00000000013DA000-memory.dmp	shurk_stealer
behavioral1/memory/780-57-0x0000000000D10000-0x00000000013DA000-memory.dmp	shurk_stealer
behavioral1/memory/780-58-0x0000000000D10000-0x00000000013DA000-memory.dmp	shurk_stealer
behavioral1/memory/780-59-0x0000000000D10000-0x00000000013DA000-memory.dmp	shurk_stealer
behavioral1/memory/780-61-0x0000000000D10000-0x00000000013DA000-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__	fecbec287420f4478ef41f68fc9db23c3653a95ff92d384f1eb6e1400306598d.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	fecbec287420f4478ef41f68fc9db23c3653a95ff92d384f1eb6e1400306598d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	fecbec287420f4478ef41f68fc9db23c3653a95ff92d384f1eb6e1400306598d.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 6 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/780-55-0x0000000000D10000-0x00000000013DA000-memory.dmp	themida
behavioral1/memory/780-56-0x0000000000D10000-0x00000000013DA000-memory.dmp	themida
behavioral1/memory/780-57-0x0000000000D10000-0x00000000013DA000-memory.dmp	themida
behavioral1/memory/780-58-0x0000000000D10000-0x00000000013DA000-memory.dmp	themida
behavioral1/memory/780-59-0x0000000000D10000-0x00000000013DA000-memory.dmp	themida
behavioral1/memory/780-61-0x0000000000D10000-0x00000000013DA000-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	fecbec287420f4478ef41f68fc9db23c3653a95ff92d384f1eb6e1400306598d.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
780	fecbec287420f4478ef41f68fc9db23c3653a95ff92d384f1eb6e1400306598d.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
780	fecbec287420f4478ef41f68fc9db23c3653a95ff92d384f1eb6e1400306598d.exe

C:\Users\Admin\AppData\Local\Temp\fecbec287420f4478ef41f68fc9db23c3653a95ff92d384f1eb6e1400306598d.exe
"C:\Users\Admin\AppData\Local\Temp\fecbec287420f4478ef41f68fc9db23c3653a95ff92d384f1eb6e1400306598d.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:780

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/780-54-0x0000000076531000-0x0000000076533000-memory.dmp

Filesize
8KB

Download
memory/780-55-0x0000000000D10000-0x00000000013DA000-memory.dmp

Filesize
6.8MB

Download
memory/780-56-0x0000000000D10000-0x00000000013DA000-memory.dmp

Filesize
6.8MB

Download
memory/780-57-0x0000000000D10000-0x00000000013DA000-memory.dmp

Filesize
6.8MB

Download
memory/780-58-0x0000000000D10000-0x00000000013DA000-memory.dmp

Filesize
6.8MB

Download
memory/780-59-0x0000000000D10000-0x00000000013DA000-memory.dmp

Filesize
6.8MB

Download
memory/780-60-0x0000000077910000-0x0000000077A90000-memory.dmp

Filesize
1.5MB

Download
memory/780-61-0x0000000000D10000-0x00000000013DA000-memory.dmp

Filesize
6.8MB

Download
memory/780-62-0x0000000077910000-0x0000000077A90000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads