stealc | 4ae707f447635ea5b4baf2db00265ae1fee0ad0b99fcd535424d6f1a2e0a1894

Analysis

max time kernel
125s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 08:49

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General

Target

4ae707f447635ea5b4baf2db00265ae1fee0ad0b99fcd535424d6f1a2e0a1894.exe
Size

2.7MB
MD5

d1300cf7e1b922d4ba3d3610499a1e4e
SHA1

d3fa98db07d835d455e081b33e2853246e7d7d17
SHA256

4ae707f447635ea5b4baf2db00265ae1fee0ad0b99fcd535424d6f1a2e0a1894
SHA512

6c71542f70170cb8a1c16bcbcaac0123afb75cce5fcb93dfa728593ad8160ec839ea5da9443ee75a08d01b067de428c8063a41c71ba8beaa0cde2f6d22f25fae
SSDEEP

24576:DiOGLCyzsVtR5+4JzJBvVtUtk0J3W7OxNiIaAfhsuwhzjC8XK4yil5UuQH/peQIE:+C3VdJjV+G0JbilZTpyupgpX8Gbfd

Score

10^/10

stealc rave discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

rave

http://185.215.113.103

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__	4ae707f447635ea5b4baf2db00265ae1fee0ad0b99fcd535424d6f1a2e0a1894.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	4ae707f447635ea5b4baf2db00265ae1fee0ad0b99fcd535424d6f1a2e0a1894.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4ae707f447635ea5b4baf2db00265ae1fee0ad0b99fcd535424d6f1a2e0a1894.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-1-5-21-2170637797-568393320-3232933035-1000\Software\Wine	4ae707f447635ea5b4baf2db00265ae1fee0ad0b99fcd535424d6f1a2e0a1894.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1136	4ae707f447635ea5b4baf2db00265ae1fee0ad0b99fcd535424d6f1a2e0a1894.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	4ae707f447635ea5b4baf2db00265ae1fee0ad0b99fcd535424d6f1a2e0a1894.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1136	4ae707f447635ea5b4baf2db00265ae1fee0ad0b99fcd535424d6f1a2e0a1894.exe
1136	4ae707f447635ea5b4baf2db00265ae1fee0ad0b99fcd535424d6f1a2e0a1894.exe

C:\Users\Admin\AppData\Local\Temp\4ae707f447635ea5b4baf2db00265ae1fee0ad0b99fcd535424d6f1a2e0a1894.exe
"C:\Users\Admin\AppData\Local\Temp\4ae707f447635ea5b4baf2db00265ae1fee0ad0b99fcd535424d6f1a2e0a1894.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:1136

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4276,i,10065386245627775856,6567048529106473151,262144 --variations-seed-version --mojo-platform-channel-handle=1436 /prefetch:8
1⤵
PID:1060

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/1136-0-0x0000000000720000-0x0000000000C03000-memory.dmp

Filesize
4.9MB

Download
memory/1136-1-0x0000000077534000-0x0000000077536000-memory.dmp

Filesize
8KB

Download
memory/1136-2-0x0000000000721000-0x0000000000735000-memory.dmp

Filesize
80KB

Download
memory/1136-3-0x0000000000720000-0x0000000000C03000-memory.dmp

Filesize
4.9MB

Download
memory/1136-5-0x0000000000720000-0x0000000000C03000-memory.dmp

Filesize
4.9MB

Download