stealc | 9261b5a009a9b8ac9f2e43bcf8f22a55f11d1f1b71dc368522cb039a6dbf2df9

Analysis

max time kernel
140s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-11-2024 16:17

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General

Target

9261b5a009a9b8ac9f2e43bcf8f22a55f11d1f1b71dc368522cb039a6dbf2df9.exe
Size

2.0MB
MD5

c6c90107b9c9ad8a039cf38950062c8c
SHA1

83cff0d56c69311a132a4438629fd0759c1dffb8
SHA256

9261b5a009a9b8ac9f2e43bcf8f22a55f11d1f1b71dc368522cb039a6dbf2df9
SHA512

5d600eaa73e8b49db108189bc2cfa74f942e6ae163330fa1341e4d8327c93b6fecfe60edf9e25bbb7dc2566cf2ea24dbe64b01c59fc148d444abedd24c1006ac
SSDEEP

49152:OuXu+QAZBrO4P871M6Mpi5oQyX8FwCmyY0sdL:de+blO4k7aZQyX8pY0EL

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__	9261b5a009a9b8ac9f2e43bcf8f22a55f11d1f1b71dc368522cb039a6dbf2df9.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	9261b5a009a9b8ac9f2e43bcf8f22a55f11d1f1b71dc368522cb039a6dbf2df9.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	9261b5a009a9b8ac9f2e43bcf8f22a55f11d1f1b71dc368522cb039a6dbf2df9.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-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	9261b5a009a9b8ac9f2e43bcf8f22a55f11d1f1b71dc368522cb039a6dbf2df9.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4896	9261b5a009a9b8ac9f2e43bcf8f22a55f11d1f1b71dc368522cb039a6dbf2df9.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	9261b5a009a9b8ac9f2e43bcf8f22a55f11d1f1b71dc368522cb039a6dbf2df9.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4896	9261b5a009a9b8ac9f2e43bcf8f22a55f11d1f1b71dc368522cb039a6dbf2df9.exe
4896	9261b5a009a9b8ac9f2e43bcf8f22a55f11d1f1b71dc368522cb039a6dbf2df9.exe

C:\Users\Admin\AppData\Local\Temp\9261b5a009a9b8ac9f2e43bcf8f22a55f11d1f1b71dc368522cb039a6dbf2df9.exe
"C:\Users\Admin\AppData\Local\Temp\9261b5a009a9b8ac9f2e43bcf8f22a55f11d1f1b71dc368522cb039a6dbf2df9.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:4896

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/4896-0-0x0000000000B40000-0x0000000001270000-memory.dmp

Filesize
7.2MB

Download
memory/4896-1-0x0000000077274000-0x0000000077276000-memory.dmp

Filesize
8KB

Download
memory/4896-2-0x0000000000B41000-0x0000000000BA9000-memory.dmp

Filesize
416KB

Download
memory/4896-3-0x0000000000B40000-0x0000000001270000-memory.dmp

Filesize
7.2MB

Download
memory/4896-5-0x0000000000B40000-0x0000000001270000-memory.dmp

Filesize
7.2MB

Download