stealc | 554bde2e706bad2908fc0534a58e7cfa7e099edc754a46717f738616da146131

Analysis

max time kernel
80s
max time network
20s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 20:55

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General

Target

554bde2e706bad2908fc0534a58e7cfa7e099edc754a46717f738616da146131N.exe
Size

2.8MB
MD5

79d73f0973da38285b0e0a83fa7ef5d0
SHA1

18692d3c66779517481c1868e39a8ed62f3af7fd
SHA256

554bde2e706bad2908fc0534a58e7cfa7e099edc754a46717f738616da146131
SHA512

471ba9cd38f5126e79a52baa70e5bb169dd09b7b05b7a56da8dc6da28c0a6e579d2962b575ac4ca83695d8a60a07457d974e2d79d4e7506cb4769a7ff87ca270
SSDEEP

49152:DU9YADYi0RJlAy7OA9V3DRv3csLjd3bYmrVdI/p:DUdDYimJ+y7OA9V3d3XJbfW/p

Score

10^/10

stealc stok discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

http://185.215.113.206

Attributes

url_path
/c4becf79229cb002.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__	554bde2e706bad2908fc0534a58e7cfa7e099edc754a46717f738616da146131N.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	554bde2e706bad2908fc0534a58e7cfa7e099edc754a46717f738616da146131N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	554bde2e706bad2908fc0534a58e7cfa7e099edc754a46717f738616da146131N.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Wine	554bde2e706bad2908fc0534a58e7cfa7e099edc754a46717f738616da146131N.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1648	554bde2e706bad2908fc0534a58e7cfa7e099edc754a46717f738616da146131N.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	554bde2e706bad2908fc0534a58e7cfa7e099edc754a46717f738616da146131N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1648	554bde2e706bad2908fc0534a58e7cfa7e099edc754a46717f738616da146131N.exe

C:\Users\Admin\AppData\Local\Temp\554bde2e706bad2908fc0534a58e7cfa7e099edc754a46717f738616da146131N.exe
"C:\Users\Admin\AppData\Local\Temp\554bde2e706bad2908fc0534a58e7cfa7e099edc754a46717f738616da146131N.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:1648

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/1648-0-0x0000000000980000-0x0000000000E7D000-memory.dmp

Filesize
5.0MB

Download
memory/1648-1-0x00000000779B0000-0x00000000779B2000-memory.dmp

Filesize
8KB

Download
memory/1648-2-0x0000000000981000-0x0000000000998000-memory.dmp

Filesize
92KB

Download
memory/1648-3-0x0000000000980000-0x0000000000E7D000-memory.dmp

Filesize
5.0MB

Download
memory/1648-4-0x0000000000980000-0x0000000000E7D000-memory.dmp

Filesize
5.0MB

Download