stealc | b250877cdcc29acd15fff50564c19af7e22e0a6b096c095a8773e2649047dba2

Analysis

max time kernel
29s
max time network
142s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
04/09/2024, 02:22

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General

Target

b250877cdcc29acd15fff50564c19af7e22e0a6b096c095a8773e2649047dba2.exe
Size

1.7MB
MD5

f0e444373775ea9a46190d0222589e12
SHA1

36309ca5cd96eac36673798f1dc81eef5df36ae6
SHA256

b250877cdcc29acd15fff50564c19af7e22e0a6b096c095a8773e2649047dba2
SHA512

9949612645094dfb26336cc5c7968ea22b3c4eb27d29b634ed5274cf9499ef08aba35bad7ca2fc2f711a2e48273b25558d561bb28cad70f7bd0317b2146cc7ab
SSDEEP

24576:3HtRvSoL4b4EH+3zD3VVuPEkCJ/ZSavL1uEzz1ZE4hwT2P/IQWit3zRfhJ9d:3v5sT+9VVVFcgLDNi4hwT2PhWyzRHP

Score

10^/10

stealc leva discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

leva

http://185.215.113.100

Attributes

url_path
/e2b1563c6670f193.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer 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__	b250877cdcc29acd15fff50564c19af7e22e0a6b096c095a8773e2649047dba2.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	b250877cdcc29acd15fff50564c19af7e22e0a6b096c095a8773e2649047dba2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b250877cdcc29acd15fff50564c19af7e22e0a6b096c095a8773e2649047dba2.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-1-5-21-1287768749-810021449-2672985988-1000\Software\Wine	b250877cdcc29acd15fff50564c19af7e22e0a6b096c095a8773e2649047dba2.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4000	b250877cdcc29acd15fff50564c19af7e22e0a6b096c095a8773e2649047dba2.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	b250877cdcc29acd15fff50564c19af7e22e0a6b096c095a8773e2649047dba2.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4000	b250877cdcc29acd15fff50564c19af7e22e0a6b096c095a8773e2649047dba2.exe
4000	b250877cdcc29acd15fff50564c19af7e22e0a6b096c095a8773e2649047dba2.exe

C:\Users\Admin\AppData\Local\Temp\b250877cdcc29acd15fff50564c19af7e22e0a6b096c095a8773e2649047dba2.exe
"C:\Users\Admin\AppData\Local\Temp\b250877cdcc29acd15fff50564c19af7e22e0a6b096c095a8773e2649047dba2.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:4000

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/4000-0-0x00000000004A0000-0x0000000000B16000-memory.dmp

Filesize
6.5MB

Download
memory/4000-1-0x0000000077226000-0x0000000077228000-memory.dmp

Filesize
8KB

Download
memory/4000-2-0x00000000004A1000-0x00000000004B5000-memory.dmp

Filesize
80KB

Download
memory/4000-3-0x00000000004A0000-0x0000000000B16000-memory.dmp

Filesize
6.5MB

Download
memory/4000-4-0x00000000004A0000-0x0000000000B16000-memory.dmp

Filesize
6.5MB

Download