stealc | f87a85680eb816889bbefe15af11a68930eb67ef6904dc7201edafdddf1a1bb8

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 05:27

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General

Target

f87a85680eb816889bbefe15af11a68930eb67ef6904dc7201edafdddf1a1bb8.exe
Size

2.8MB
MD5

ad87440d4b97e759f9d4ee9d6279d06e
SHA1

7525695152b7c233eb6eb473cb8ed54e476b28be
SHA256

f87a85680eb816889bbefe15af11a68930eb67ef6904dc7201edafdddf1a1bb8
SHA512

f1d97bc33000ce39dd207b7c824cd4b84581055831c98e72d9f3facfba1766c90aa3921d96cf486c083526c4062bd3bd66818d74cf4142ded32c878ac30ab903
SSDEEP

49152:dUKOFohGWJqh/PVWikBefgLsJ/UtQneLgNfP/TTi:dUKOFohGWJinVzk2oKneLgl/a

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__	f87a85680eb816889bbefe15af11a68930eb67ef6904dc7201edafdddf1a1bb8.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	f87a85680eb816889bbefe15af11a68930eb67ef6904dc7201edafdddf1a1bb8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f87a85680eb816889bbefe15af11a68930eb67ef6904dc7201edafdddf1a1bb8.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-1-5-21-2039016743-699959520-214465309-1000\Software\Wine	f87a85680eb816889bbefe15af11a68930eb67ef6904dc7201edafdddf1a1bb8.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
388	f87a85680eb816889bbefe15af11a68930eb67ef6904dc7201edafdddf1a1bb8.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	f87a85680eb816889bbefe15af11a68930eb67ef6904dc7201edafdddf1a1bb8.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
388	f87a85680eb816889bbefe15af11a68930eb67ef6904dc7201edafdddf1a1bb8.exe

C:\Users\Admin\AppData\Local\Temp\f87a85680eb816889bbefe15af11a68930eb67ef6904dc7201edafdddf1a1bb8.exe
"C:\Users\Admin\AppData\Local\Temp\f87a85680eb816889bbefe15af11a68930eb67ef6904dc7201edafdddf1a1bb8.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:388

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/388-0-0x0000000000930000-0x0000000000E2A000-memory.dmp

Filesize
5.0MB

Download
memory/388-1-0x0000000077010000-0x0000000077012000-memory.dmp

Filesize
8KB

Download
memory/388-2-0x0000000000931000-0x0000000000948000-memory.dmp

Filesize
92KB

Download
memory/388-3-0x0000000000930000-0x0000000000E2A000-memory.dmp

Filesize
5.0MB

Download
memory/388-4-0x0000000000930000-0x0000000000E2A000-memory.dmp

Filesize
5.0MB

Download