stealc | b6904d59e10e8349493b64fad899e70b694c60af552fcc8f70a7f090d7b3559b

Analysis

max time kernel
92s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2024 13:00

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General

Target

b6904d59e10e8349493b64fad899e70b694c60af552fcc8f70a7f090d7b3559b.exe
Size

1.7MB
MD5

1e9314537d32215aac9b9e508cad802a
SHA1

f4beac8138432483f4c82cf396e2468ea219c936
SHA256

b6904d59e10e8349493b64fad899e70b694c60af552fcc8f70a7f090d7b3559b
SHA512

db06e604d8aa83013a850104cad34432653600bccd350b2d652fa4d6624a3694d44952a813bab84ba59405e6fd1850f0638eb75603aa2793f7cdfd2a374317b4
SSDEEP

49152:Zm1J95zSL4AKmB3NR9mPk4NH0mDozXWq9:MJWRTR9mxRiXWq

Score

10^/10

stealc drum discovery evasion 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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	b6904d59e10e8349493b64fad899e70b694c60af552fcc8f70a7f090d7b3559b.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	b6904d59e10e8349493b64fad899e70b694c60af552fcc8f70a7f090d7b3559b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b6904d59e10e8349493b64fad899e70b694c60af552fcc8f70a7f090d7b3559b.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-1-5-21-1045960512-3948844814-3059691613-1000\Software\Wine	b6904d59e10e8349493b64fad899e70b694c60af552fcc8f70a7f090d7b3559b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1656	b6904d59e10e8349493b64fad899e70b694c60af552fcc8f70a7f090d7b3559b.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	b6904d59e10e8349493b64fad899e70b694c60af552fcc8f70a7f090d7b3559b.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1656	b6904d59e10e8349493b64fad899e70b694c60af552fcc8f70a7f090d7b3559b.exe
1656	b6904d59e10e8349493b64fad899e70b694c60af552fcc8f70a7f090d7b3559b.exe

C:\Users\Admin\AppData\Local\Temp\b6904d59e10e8349493b64fad899e70b694c60af552fcc8f70a7f090d7b3559b.exe
"C:\Users\Admin\AppData\Local\Temp\b6904d59e10e8349493b64fad899e70b694c60af552fcc8f70a7f090d7b3559b.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:1656

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/1656-0-0x0000000000010000-0x00000000006AB000-memory.dmp

Filesize
6.6MB

Download
memory/1656-1-0x00000000771F4000-0x00000000771F6000-memory.dmp

Filesize
8KB

Download
memory/1656-2-0x0000000000011000-0x0000000000028000-memory.dmp

Filesize
92KB

Download
memory/1656-3-0x0000000000010000-0x00000000006AB000-memory.dmp

Filesize
6.6MB

Download
memory/1656-5-0x0000000000010000-0x00000000006AB000-memory.dmp

Filesize
6.6MB

Download