stealc | 681df755fbb816d71e83fd61784466e525eb3f3794d697f2cf64cd006021d06b

Analysis

max time kernel
92s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-11-2024 02:55

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General

Target

681df755fbb816d71e83fd61784466e525eb3f3794d697f2cf64cd006021d06b.exe
Size

2.0MB
MD5

fb7b7bcdddc2f33ab022c222c225914d
SHA1

7577f5d3d26279d360b7d6282e1f3ca9d4ddc6d6
SHA256

681df755fbb816d71e83fd61784466e525eb3f3794d697f2cf64cd006021d06b
SHA512

9a1f0d49a8ed0e93ff06cc47a20b61a8a2669e2053026610ff49171391dad1d2ebde978f4054adb58c87bca2adbe0b78b4ea9b78ee18cc083fdd480527cd51a4
SSDEEP

49152:3rnzQ/dtE3xwcHa7UvUN+rYRJYa3WGZw6/e+dj:bnzQzE3xn6y8/3W8w2v

Score

10^/10

stealc tale discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

tale

http://185.215.113.206

Attributes

url_path
/6c4adf523b719729.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
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__	681df755fbb816d71e83fd61784466e525eb3f3794d697f2cf64cd006021d06b.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	681df755fbb816d71e83fd61784466e525eb3f3794d697f2cf64cd006021d06b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	681df755fbb816d71e83fd61784466e525eb3f3794d697f2cf64cd006021d06b.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-1-5-21-3756129449-3121373848-4276368241-1000\Software\Wine	681df755fbb816d71e83fd61784466e525eb3f3794d697f2cf64cd006021d06b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4912	681df755fbb816d71e83fd61784466e525eb3f3794d697f2cf64cd006021d06b.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	681df755fbb816d71e83fd61784466e525eb3f3794d697f2cf64cd006021d06b.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4912	681df755fbb816d71e83fd61784466e525eb3f3794d697f2cf64cd006021d06b.exe
4912	681df755fbb816d71e83fd61784466e525eb3f3794d697f2cf64cd006021d06b.exe

C:\Users\Admin\AppData\Local\Temp\681df755fbb816d71e83fd61784466e525eb3f3794d697f2cf64cd006021d06b.exe
"C:\Users\Admin\AppData\Local\Temp\681df755fbb816d71e83fd61784466e525eb3f3794d697f2cf64cd006021d06b.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:4912

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/4912-0-0x0000000000460000-0x0000000000B60000-memory.dmp

Filesize
7.0MB

Download
memory/4912-1-0x0000000077C94000-0x0000000077C96000-memory.dmp

Filesize
8KB

Download
memory/4912-2-0x0000000000461000-0x00000000004C9000-memory.dmp

Filesize
416KB

Download
memory/4912-3-0x0000000000460000-0x0000000000B60000-memory.dmp

Filesize
7.0MB

Download
memory/4912-4-0x0000000000460000-0x0000000000B60000-memory.dmp

Filesize
7.0MB

Download