stealc | 5202f99baf32bd7c0df659637b99cfbd53f7bd3d171ecf61529fec4daf7e71b4

Analysis

max time kernel
115s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27/09/2024, 12:35

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General

Target

5202f99baf32bd7c0df659637b99cfbd53f7bd3d171ecf61529fec4daf7e71b4N.exe
Size

1.8MB
MD5

d373b4b79df48249752714876f9ca220
SHA1

b3a700f70e22287aed6a8e218ff239b77a70b461
SHA256

5202f99baf32bd7c0df659637b99cfbd53f7bd3d171ecf61529fec4daf7e71b4
SHA512

3f240ee9a05180166d445ab4aeb6be8aec6e27116a7576688bcef0dd5dec0cab483283040bb2d6015e9e537226cbac6a5e151d18efe638dfbc03109c288e246a
SSDEEP

49152:6wRBGfPzvA9Id6hSmZVsQvsW77p0q2zHnz16:qzo9Id6hSUVvVPpb2zHnz1

Score

10^/10

stealc save discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

save

http://185.215.113.37

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__	5202f99baf32bd7c0df659637b99cfbd53f7bd3d171ecf61529fec4daf7e71b4N.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	5202f99baf32bd7c0df659637b99cfbd53f7bd3d171ecf61529fec4daf7e71b4N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	5202f99baf32bd7c0df659637b99cfbd53f7bd3d171ecf61529fec4daf7e71b4N.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	5202f99baf32bd7c0df659637b99cfbd53f7bd3d171ecf61529fec4daf7e71b4N.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
212	5202f99baf32bd7c0df659637b99cfbd53f7bd3d171ecf61529fec4daf7e71b4N.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	5202f99baf32bd7c0df659637b99cfbd53f7bd3d171ecf61529fec4daf7e71b4N.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
212	5202f99baf32bd7c0df659637b99cfbd53f7bd3d171ecf61529fec4daf7e71b4N.exe
212	5202f99baf32bd7c0df659637b99cfbd53f7bd3d171ecf61529fec4daf7e71b4N.exe

C:\Users\Admin\AppData\Local\Temp\5202f99baf32bd7c0df659637b99cfbd53f7bd3d171ecf61529fec4daf7e71b4N.exe
"C:\Users\Admin\AppData\Local\Temp\5202f99baf32bd7c0df659637b99cfbd53f7bd3d171ecf61529fec4daf7e71b4N.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:212

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=4264,i,4174666705242427184,7333705955694532165,262144 --variations-seed-version --mojo-platform-channel-handle=4500 /prefetch:8
1⤵
PID:2568

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/212-0-0x0000000000F90000-0x0000000001631000-memory.dmp

Filesize
6.6MB

Download
memory/212-1-0x0000000077524000-0x0000000077526000-memory.dmp

Filesize
8KB

Download
memory/212-2-0x0000000000F91000-0x0000000000FB4000-memory.dmp

Filesize
140KB

Download
memory/212-3-0x0000000000F90000-0x0000000001631000-memory.dmp

Filesize
6.6MB

Download
memory/212-5-0x0000000000F90000-0x0000000001631000-memory.dmp

Filesize
6.6MB

Download