stealc | b58b167e871b1b7d45c597b883fd34e0269f11287249f9ccb393bb51f963909c

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-11-2024 07:52

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General

Target

b58b167e871b1b7d45c597b883fd34e0269f11287249f9ccb393bb51f963909c.exe
Size

2.0MB
MD5

085a80e000927c8630f0c850e1b4371e
SHA1

1f56af38f6f4c1233ab9ebda8657888b8b1c339d
SHA256

b58b167e871b1b7d45c597b883fd34e0269f11287249f9ccb393bb51f963909c
SHA512

daa396f21d45a04e3b2471b58f0c94b71deacaabf978831783512a2d61204b43cf0e766fa5de35a5c304e74e5ead0176846c3dee4ebf1412e0a6ed5be23a9eb8
SSDEEP

49152:lLtvouahfXO1ZbRI+qQj/3LVfS3chgwnt79nbc/6sv879:lRvyfXCF3/79SMhgETb2M

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__	b58b167e871b1b7d45c597b883fd34e0269f11287249f9ccb393bb51f963909c.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	b58b167e871b1b7d45c597b883fd34e0269f11287249f9ccb393bb51f963909c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b58b167e871b1b7d45c597b883fd34e0269f11287249f9ccb393bb51f963909c.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-1-5-21-2878641211-696417878-3864914810-1000\Software\Wine	b58b167e871b1b7d45c597b883fd34e0269f11287249f9ccb393bb51f963909c.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2840	b58b167e871b1b7d45c597b883fd34e0269f11287249f9ccb393bb51f963909c.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	b58b167e871b1b7d45c597b883fd34e0269f11287249f9ccb393bb51f963909c.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2840	b58b167e871b1b7d45c597b883fd34e0269f11287249f9ccb393bb51f963909c.exe
2840	b58b167e871b1b7d45c597b883fd34e0269f11287249f9ccb393bb51f963909c.exe

C:\Users\Admin\AppData\Local\Temp\b58b167e871b1b7d45c597b883fd34e0269f11287249f9ccb393bb51f963909c.exe
"C:\Users\Admin\AppData\Local\Temp\b58b167e871b1b7d45c597b883fd34e0269f11287249f9ccb393bb51f963909c.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:2840

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/2840-0-0x00000000006E0000-0x0000000000E0F000-memory.dmp

Filesize
7.2MB

Download
memory/2840-1-0x0000000077194000-0x0000000077196000-memory.dmp

Filesize
8KB

Download
memory/2840-2-0x00000000006E1000-0x0000000000749000-memory.dmp

Filesize
416KB

Download
memory/2840-3-0x00000000006E0000-0x0000000000E0F000-memory.dmp

Filesize
7.2MB

Download
memory/2840-4-0x00000000006E0000-0x0000000000E0F000-memory.dmp

Filesize
7.2MB

Download