stealc | 7a9b9f8c6f5f16844845028f7af75bdc6c01f6c4b5a9dd8e7e23b17b849e505f

Analysis

max time kernel
135s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-11-2024 03:04

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General

Target

7a9b9f8c6f5f16844845028f7af75bdc6c01f6c4b5a9dd8e7e23b17b849e505f.exe
Size

2.0MB
MD5

cd75adb80b6ccafd5db77b4673cdd49e
SHA1

fff32ec01216b9a57bd7f0efabaabc75808ce6b3
SHA256

7a9b9f8c6f5f16844845028f7af75bdc6c01f6c4b5a9dd8e7e23b17b849e505f
SHA512

8fc685088bdfb721a24db108ea20ebcafceeaf1447408d9bf733fdcd95e25037725eff4cefe3e22322f1d7c1ed53403633f2434bfe65e0bf03595cbe8684a080
SSDEEP

49152:H2bWB/J7/jRqBDZmL67p18XZ8F4FA2ERJqZGVfMOMZSHMo:H2StPqBDMO7pNK62gAGOOY

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__	7a9b9f8c6f5f16844845028f7af75bdc6c01f6c4b5a9dd8e7e23b17b849e505f.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	7a9b9f8c6f5f16844845028f7af75bdc6c01f6c4b5a9dd8e7e23b17b849e505f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7a9b9f8c6f5f16844845028f7af75bdc6c01f6c4b5a9dd8e7e23b17b849e505f.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-1-5-21-2437139445-1151884604-3026847218-1000\Software\Wine	7a9b9f8c6f5f16844845028f7af75bdc6c01f6c4b5a9dd8e7e23b17b849e505f.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3676	7a9b9f8c6f5f16844845028f7af75bdc6c01f6c4b5a9dd8e7e23b17b849e505f.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	7a9b9f8c6f5f16844845028f7af75bdc6c01f6c4b5a9dd8e7e23b17b849e505f.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3676	7a9b9f8c6f5f16844845028f7af75bdc6c01f6c4b5a9dd8e7e23b17b849e505f.exe
3676	7a9b9f8c6f5f16844845028f7af75bdc6c01f6c4b5a9dd8e7e23b17b849e505f.exe

C:\Users\Admin\AppData\Local\Temp\7a9b9f8c6f5f16844845028f7af75bdc6c01f6c4b5a9dd8e7e23b17b849e505f.exe
"C:\Users\Admin\AppData\Local\Temp\7a9b9f8c6f5f16844845028f7af75bdc6c01f6c4b5a9dd8e7e23b17b849e505f.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:3676

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/3676-0-0x0000000000CD0000-0x0000000001401000-memory.dmp

Filesize
7.2MB

Download
memory/3676-1-0x0000000077764000-0x0000000077766000-memory.dmp

Filesize
8KB

Download
memory/3676-2-0x0000000000CD1000-0x0000000000D39000-memory.dmp

Filesize
416KB

Download
memory/3676-3-0x0000000000CD0000-0x0000000001401000-memory.dmp

Filesize
7.2MB

Download
memory/3676-5-0x0000000000CD0000-0x0000000001401000-memory.dmp

Filesize
7.2MB

Download