stealc | 998c8dddf5fc3d73a386669c03ce5a4d371fb1d09983b1828f3ed49598af0b57

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 18:00

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General

Target

998c8dddf5fc3d73a386669c03ce5a4d371fb1d09983b1828f3ed49598af0b57.exe
Size

2.8MB
MD5

a0956c9f9c719b85668c6f8b85f89a5b
SHA1

031f8c3bf791e31ae9b03286b486b1365b81f745
SHA256

998c8dddf5fc3d73a386669c03ce5a4d371fb1d09983b1828f3ed49598af0b57
SHA512

1ee084ef14a516733ffaedd360b43560bf87e999fc4f2ad9c8d34191f33e6fafde7bd0773cc422f63d664e8b8d994d1884736f70c360927aaef75745323b8474
SSDEEP

24576:LBGJABbey9EKIXUDMPygZalHOiZncFx2J/atbmmPffRv7P8ussEsfEEi3M4rz7Jf:lKABDZIXUI5iuiZ29zmuarfkjpTSyng

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__	998c8dddf5fc3d73a386669c03ce5a4d371fb1d09983b1828f3ed49598af0b57.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	998c8dddf5fc3d73a386669c03ce5a4d371fb1d09983b1828f3ed49598af0b57.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	998c8dddf5fc3d73a386669c03ce5a4d371fb1d09983b1828f3ed49598af0b57.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Wine	998c8dddf5fc3d73a386669c03ce5a4d371fb1d09983b1828f3ed49598af0b57.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2836	998c8dddf5fc3d73a386669c03ce5a4d371fb1d09983b1828f3ed49598af0b57.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	998c8dddf5fc3d73a386669c03ce5a4d371fb1d09983b1828f3ed49598af0b57.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2836	998c8dddf5fc3d73a386669c03ce5a4d371fb1d09983b1828f3ed49598af0b57.exe

C:\Users\Admin\AppData\Local\Temp\998c8dddf5fc3d73a386669c03ce5a4d371fb1d09983b1828f3ed49598af0b57.exe
"C:\Users\Admin\AppData\Local\Temp\998c8dddf5fc3d73a386669c03ce5a4d371fb1d09983b1828f3ed49598af0b57.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:2836

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/2836-0-0x0000000000DA0000-0x0000000001296000-memory.dmp

Filesize
5.0MB

Download
memory/2836-1-0x00000000773E0000-0x00000000773E2000-memory.dmp

Filesize
8KB

Download
memory/2836-2-0x0000000000DA1000-0x0000000000DB8000-memory.dmp

Filesize
92KB

Download
memory/2836-3-0x0000000000DA0000-0x0000000001296000-memory.dmp

Filesize
5.0MB

Download
memory/2836-4-0x0000000000DA0000-0x0000000001296000-memory.dmp

Filesize
5.0MB

Download