stealc | 249001bdb6015ef538d4654e6f5c5a1522b7382987ec926d062578ae973f8a71

Analysis

max time kernel
131s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04/09/2024, 01:13

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General

Target

249001bdb6015ef538d4654e6f5c5a1522b7382987ec926d062578ae973f8a71.exe
Size

1.7MB
MD5

5bf21229b0e8c6361a56f0aec0121cc4
SHA1

a46472a1168dad39660f923bb25dc333d24cd2cb
SHA256

249001bdb6015ef538d4654e6f5c5a1522b7382987ec926d062578ae973f8a71
SHA512

5de8222c9ae3a6f89a368722cb226f1f82d4b290831c44d3ab84f0d21a3d9432c4dfa126ec53501d0f49227d27c911cd4fe89361d13951117b06897cc52baf0f
SSDEEP

49152:qbPeZrwU5W/dC3UamcrzBaGz4PCe7edsnFIKLM2Rm+:eWZeahRaA4neaO+

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__	249001bdb6015ef538d4654e6f5c5a1522b7382987ec926d062578ae973f8a71.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	249001bdb6015ef538d4654e6f5c5a1522b7382987ec926d062578ae973f8a71.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	249001bdb6015ef538d4654e6f5c5a1522b7382987ec926d062578ae973f8a71.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	249001bdb6015ef538d4654e6f5c5a1522b7382987ec926d062578ae973f8a71.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4600	249001bdb6015ef538d4654e6f5c5a1522b7382987ec926d062578ae973f8a71.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	249001bdb6015ef538d4654e6f5c5a1522b7382987ec926d062578ae973f8a71.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4600	249001bdb6015ef538d4654e6f5c5a1522b7382987ec926d062578ae973f8a71.exe
4600	249001bdb6015ef538d4654e6f5c5a1522b7382987ec926d062578ae973f8a71.exe

C:\Users\Admin\AppData\Local\Temp\249001bdb6015ef538d4654e6f5c5a1522b7382987ec926d062578ae973f8a71.exe
"C:\Users\Admin\AppData\Local\Temp\249001bdb6015ef538d4654e6f5c5a1522b7382987ec926d062578ae973f8a71.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:4600

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=944,i,2904906934812054273,11716976550456127484,262144 --variations-seed-version --mojo-platform-channel-handle=4360 /prefetch:8
1⤵
PID:3676

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/4600-0-0x00000000001D0000-0x000000000085F000-memory.dmp

Filesize
6.6MB

Download
memory/4600-1-0x0000000077D54000-0x0000000077D56000-memory.dmp

Filesize
8KB

Download
memory/4600-2-0x00000000001D1000-0x00000000001E5000-memory.dmp

Filesize
80KB

Download
memory/4600-3-0x00000000001D0000-0x000000000085F000-memory.dmp

Filesize
6.6MB

Download
memory/4600-4-0x00000000001D0000-0x000000000085F000-memory.dmp

Filesize
6.6MB

Download