stealc | f6fe2b646fb1854158ab3002206d6a465083cbf87c2d13438227e902b8b83985

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 08:24

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General

Target

f6fe2b646fb1854158ab3002206d6a465083cbf87c2d13438227e902b8b83985.exe
Size

1.7MB
MD5

76e0ff31319044889a67c862a932e216
SHA1

b0d2310668ce75f421ab1cac0ec4cd130cc7e31e
SHA256

f6fe2b646fb1854158ab3002206d6a465083cbf87c2d13438227e902b8b83985
SHA512

0d35f134bff0c77928bcc6ffbfa8dab48896df052ece767769ced031bf843f2e51cc23a19a0eeb4b9e124a30ad42843cca0463301ffa19beac98357d0a3bcd09
SSDEEP

49152:5TaSFKi7a7mCv13APYbS8Gsfc7fV7pgs93d/4saMw:N0iuJmPWSRpLnN/o

Score

10^/10

stealc mars discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

mars

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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	f6fe2b646fb1854158ab3002206d6a465083cbf87c2d13438227e902b8b83985.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	f6fe2b646fb1854158ab3002206d6a465083cbf87c2d13438227e902b8b83985.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f6fe2b646fb1854158ab3002206d6a465083cbf87c2d13438227e902b8b83985.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.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Wine	f6fe2b646fb1854158ab3002206d6a465083cbf87c2d13438227e902b8b83985.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2868	f6fe2b646fb1854158ab3002206d6a465083cbf87c2d13438227e902b8b83985.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	f6fe2b646fb1854158ab3002206d6a465083cbf87c2d13438227e902b8b83985.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2868	f6fe2b646fb1854158ab3002206d6a465083cbf87c2d13438227e902b8b83985.exe

C:\Users\Admin\AppData\Local\Temp\f6fe2b646fb1854158ab3002206d6a465083cbf87c2d13438227e902b8b83985.exe
"C:\Users\Admin\AppData\Local\Temp\f6fe2b646fb1854158ab3002206d6a465083cbf87c2d13438227e902b8b83985.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:2868

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/2868-0-0x0000000000C80000-0x0000000001301000-memory.dmp

Filesize
6.5MB

Download
memory/2868-1-0x0000000077530000-0x0000000077532000-memory.dmp

Filesize
8KB

Download
memory/2868-2-0x0000000000C81000-0x0000000000C98000-memory.dmp

Filesize
92KB

Download
memory/2868-3-0x0000000000C80000-0x0000000001301000-memory.dmp

Filesize
6.5MB

Download
memory/2868-4-0x0000000000C80000-0x0000000001301000-memory.dmp

Filesize
6.5MB

Download