stealc | 1c4a6940408bf29fb6034d5800b6b0acbba0a83bbd6d7a658cffd6d6b6be0068

Analysis

max time kernel
101s
max time network
110s
platform
windows11-21h2_x64
resource
win11-20250610-en
resource tags

arch:x64arch:x86image:win11-20250610-enlocale:en-usos:windows11-21h2-x64system
submitted
09/07/2025, 00:32

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General

Target
1c4a6940408bf29fb6034d5800b6b0acbba0a83bbd6d7a658cffd6d6b6be0068.exe
Size 5.0MB
Sample250709-avvrqa1ry3
SHA256 1c4a6940408bf29fb6034d5800b6b0acbba0a83bbd6d7a658cffd6d6b6be0068
MD5 53965bdfd1fa17f193ade278b9bb6e0a
SHA1 f152377e6c446fce767bb4278094a4fd28f91c98
SHA512 5875ac55f2cf68560d13ea7585fa9c28158c2681684b7849e19408159df69d7b7279028bdf976e42f6390f30933f6e565f87fac68ff845718cb1adab43bc3fba
SSDEEP 49152:pfky5L4uEJ1Zxe4fZbxuu8ARtTi38cVuKcz:tky5L4v1Zxzl8OtTdKc
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

stealc drum defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

drum

http://185.215.113.206

Attributes

url_path
/c4becf79229cb002.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__	1c4a6940408bf29fb6034d5800b6b0acbba0a83bbd6d7a658cffd6d6b6be0068.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	1c4a6940408bf29fb6034d5800b6b0acbba0a83bbd6d7a658cffd6d6b6be0068.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1c4a6940408bf29fb6034d5800b6b0acbba0a83bbd6d7a658cffd6d6b6be0068.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-1-5-21-2238466657-712128251-1221219315-1000\Software\Wine	1c4a6940408bf29fb6034d5800b6b0acbba0a83bbd6d7a658cffd6d6b6be0068.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
5300	1c4a6940408bf29fb6034d5800b6b0acbba0a83bbd6d7a658cffd6d6b6be0068.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	1c4a6940408bf29fb6034d5800b6b0acbba0a83bbd6d7a658cffd6d6b6be0068.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5300	1c4a6940408bf29fb6034d5800b6b0acbba0a83bbd6d7a658cffd6d6b6be0068.exe
5300	1c4a6940408bf29fb6034d5800b6b0acbba0a83bbd6d7a658cffd6d6b6be0068.exe

C:\Users\Admin\AppData\Local\Temp\1c4a6940408bf29fb6034d5800b6b0acbba0a83bbd6d7a658cffd6d6b6be0068.exe
"C:\Users\Admin\AppData\Local\Temp\1c4a6940408bf29fb6034d5800b6b0acbba0a83bbd6d7a658cffd6d6b6be0068.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:5300

Network

MITRE ATT&CK Enterprise v16

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

Replay Monitor

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Downloads

memory/5300-0-0x0000000000CE0000-0x00000000011DF000-memory.dmp

Download

memory/5300-1-0x00000000052C0000-0x00000000052C1000-memory.dmp

Download

memory/5300-2-0x0000000000CE0000-0x00000000011DF000-memory.dmp

Download