stealc | b0d35aca8c1211815c73e933801c3fd1ad5485d8e786d056df5e8c4a394672bc

Analysis

max time kernel
131s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08/09/2024, 20:38

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General

Target
file.exe
Size 1.7MB
Sample240908-zer4bswgqe
SHA256 b0d35aca8c1211815c73e933801c3fd1ad5485d8e786d056df5e8c4a394672bc
MD5 f1cef73977a7fa33e1f490651e673981
SHA1 42d310940df22089e24387da2ae904b73003dba8
SHA512 c52962aa7dba896d370886615c0efd16d1d3f20eb39512bbcf2575bfda7b9204a2f017b5f21e3601b28139fba7daf9b5c4e95503d385508e4e936e5a4a7d7aec
SSDEEP 49152:JRf/vtSO1w4gipHSSydCmcNfN+amACj1HFFpq:JBHo2bgOSSyJc/Vmj1l
MD5 SHA1 SHA512 SSDEEP

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__	file.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\VideoBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	file.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	file.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1148	file.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	file.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1148	file.exe
1148	file.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.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:1148

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=4388,i,3210801877307184477,8078594481454001567,262144 --variations-seed-version --mojo-platform-channel-handle=3864 /prefetch:8
1⤵
PID:32

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

Replay Monitor

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Downloads

memory/1148-0-0x00000000007A0000-0x0000000000E1A000-memory.dmp

Download

memory/1148-1-0x00000000770F4000-0x00000000770F6000-memory.dmp

Download

memory/1148-2-0x00000000007A1000-0x00000000007B5000-memory.dmp

Download

memory/1148-3-0x00000000007A0000-0x0000000000E1A000-memory.dmp

Download

memory/1148-5-0x00000000007A0000-0x0000000000E1A000-memory.dmp

Download