stealc | e8589e69f99d96c0c35c02ac0bdbb97cf3263855396f0408ec1f52e41d75a49b

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-12-2024 03:46

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General

Target

e8589e69f99d96c0c35c02ac0bdbb97cf3263855396f0408ec1f52e41d75a49b.exe
Size

1.7MB
MD5

e113c7c881355590d17b82cdd27e9c7d
SHA1

ef5b7dcac182074a561fd2e1fb2eda69ac3a40bf
SHA256

e8589e69f99d96c0c35c02ac0bdbb97cf3263855396f0408ec1f52e41d75a49b
SHA512

7eb5b668f6f2d517ddbee8928756fe877c971beee8f88801d0a4a0492696a291a19c803ecbb5eb77f31febdfb0187272a3037f48fb527e8334c5dc26abdadbeb
SSDEEP

49152:L5Xc/uAi3i37ZnYeIb+BV4CuQbQ1po+CIb:K/uri37mek68K

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__	e8589e69f99d96c0c35c02ac0bdbb97cf3263855396f0408ec1f52e41d75a49b.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\VideoBiosVersion	e8589e69f99d96c0c35c02ac0bdbb97cf3263855396f0408ec1f52e41d75a49b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	e8589e69f99d96c0c35c02ac0bdbb97cf3263855396f0408ec1f52e41d75a49b.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Wine	e8589e69f99d96c0c35c02ac0bdbb97cf3263855396f0408ec1f52e41d75a49b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1984	e8589e69f99d96c0c35c02ac0bdbb97cf3263855396f0408ec1f52e41d75a49b.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	e8589e69f99d96c0c35c02ac0bdbb97cf3263855396f0408ec1f52e41d75a49b.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1984	e8589e69f99d96c0c35c02ac0bdbb97cf3263855396f0408ec1f52e41d75a49b.exe

C:\Users\Admin\AppData\Local\Temp\e8589e69f99d96c0c35c02ac0bdbb97cf3263855396f0408ec1f52e41d75a49b.exe
"C:\Users\Admin\AppData\Local\Temp\e8589e69f99d96c0c35c02ac0bdbb97cf3263855396f0408ec1f52e41d75a49b.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:1984

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/1984-0-0x0000000000BD0000-0x0000000001265000-memory.dmp

Filesize
6.6MB

Download
memory/1984-1-0x0000000077B90000-0x0000000077B92000-memory.dmp

Filesize
8KB

Download
memory/1984-3-0x0000000000BD0000-0x0000000001265000-memory.dmp

Filesize
6.6MB

Download
memory/1984-2-0x0000000000BD1000-0x0000000000BE8000-memory.dmp

Filesize
92KB

Download
memory/1984-5-0x0000000000BD0000-0x0000000001265000-memory.dmp

Filesize
6.6MB

Download