stealc | 41fdcbfc4fe89bcc0793b8c70449fdd3b450d42812acabb62269208bb9c55209

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
06-02-2025 22:58

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General

Target

41fdcbfc4fe89bcc0793b8c70449fdd3b450d42812acabb62269208bb9c55209.exe
Size

1.8MB
MD5

27da389731048fbb8009e39faafa4e8a
SHA1

683f9ff5a2d7de555efbd3a47885f3bf4cfb2c04
SHA256

41fdcbfc4fe89bcc0793b8c70449fdd3b450d42812acabb62269208bb9c55209
SHA512

fda9d8f51f986ac51c337e25fd1e3d81c0a187584757e0266fc6f9433f8c37b64343a183826de6f9acf39ebe4297d7f701cb2e1007ffe1e7749d330b352caac8
SSDEEP

49152:sV9V9gN1QAey4PazBbcCdIQh4uIBDnwHUro72:OriN1BCPyGw4ueD62

Score

10^/10

stealc save defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

save

http://185.215.113.37

Attributes

url_path
/e2b1563c6670f193.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc

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

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	41fdcbfc4fe89bcc0793b8c70449fdd3b450d42812acabb62269208bb9c55209.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	41fdcbfc4fe89bcc0793b8c70449fdd3b450d42812acabb62269208bb9c55209.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	41fdcbfc4fe89bcc0793b8c70449fdd3b450d42812acabb62269208bb9c55209.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-70482961-775596374-3727440602-1000\Software\Wine	41fdcbfc4fe89bcc0793b8c70449fdd3b450d42812acabb62269208bb9c55209.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
632	41fdcbfc4fe89bcc0793b8c70449fdd3b450d42812acabb62269208bb9c55209.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	41fdcbfc4fe89bcc0793b8c70449fdd3b450d42812acabb62269208bb9c55209.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
632	41fdcbfc4fe89bcc0793b8c70449fdd3b450d42812acabb62269208bb9c55209.exe
632	41fdcbfc4fe89bcc0793b8c70449fdd3b450d42812acabb62269208bb9c55209.exe

C:\Users\Admin\AppData\Local\Temp\41fdcbfc4fe89bcc0793b8c70449fdd3b450d42812acabb62269208bb9c55209.exe
"C:\Users\Admin\AppData\Local\Temp\41fdcbfc4fe89bcc0793b8c70449fdd3b450d42812acabb62269208bb9c55209.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/632-0-0x0000000000010000-0x00000000006CF000-memory.dmp

Filesize
6.7MB

Download
memory/632-1-0x0000000077604000-0x0000000077606000-memory.dmp

Filesize
8KB

Download
memory/632-2-0x0000000000011000-0x0000000000034000-memory.dmp

Filesize
140KB

Download
memory/632-3-0x0000000000010000-0x00000000006CF000-memory.dmp

Filesize
6.7MB

Download
memory/632-5-0x0000000000010000-0x00000000006CF000-memory.dmp

Filesize
6.7MB

Download