stealc | 03b0ee461554c9ecfcc906404caf95247f39959ad36fff125722870f27efa0b5

Resubmissions

16-12-2024 13:56

241216-q8x21asqfm 10

16-12-2024 13:46

241216-q3fkrsspfl 10

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-12-2024 13:46

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General

Target

03b0ee461554c9ecfcc906404caf95247f39959ad36fff125722870f27efa0b5.exe
Size

1.7MB
MD5

e328245a28e6a2cdb14bde4d150a342e
SHA1

c768975f4fe3deed8d1cc677c8ada7395a394865
SHA256

03b0ee461554c9ecfcc906404caf95247f39959ad36fff125722870f27efa0b5
SHA512

4d6ad474e969cb85b29bc6319f6e84151d3267cc2ed28b22fb1b11d7e28597c98a1b2405eace53ca42cb1c5f77723fca3bf03bdaff243861593d00bf57e84ac0
SSDEEP

49152:/i7b2qdjAjGhlEBDQFrdjVytT94WtF7oOKL:xqp+BsHV4KWtF7oO

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__	03b0ee461554c9ecfcc906404caf95247f39959ad36fff125722870f27efa0b5.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	03b0ee461554c9ecfcc906404caf95247f39959ad36fff125722870f27efa0b5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	03b0ee461554c9ecfcc906404caf95247f39959ad36fff125722870f27efa0b5.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	03b0ee461554c9ecfcc906404caf95247f39959ad36fff125722870f27efa0b5.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4980	03b0ee461554c9ecfcc906404caf95247f39959ad36fff125722870f27efa0b5.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	03b0ee461554c9ecfcc906404caf95247f39959ad36fff125722870f27efa0b5.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4980	03b0ee461554c9ecfcc906404caf95247f39959ad36fff125722870f27efa0b5.exe
4980	03b0ee461554c9ecfcc906404caf95247f39959ad36fff125722870f27efa0b5.exe

C:\Users\Admin\AppData\Local\Temp\03b0ee461554c9ecfcc906404caf95247f39959ad36fff125722870f27efa0b5.exe
"C:\Users\Admin\AppData\Local\Temp\03b0ee461554c9ecfcc906404caf95247f39959ad36fff125722870f27efa0b5.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:4980

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

Replay Monitor

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Downloads

memory/4980-0-0x0000000000C20000-0x00000000012C0000-memory.dmp

Filesize
6.6MB

Download
memory/4980-1-0x0000000077584000-0x0000000077586000-memory.dmp

Filesize
8KB

Download
memory/4980-2-0x0000000000C21000-0x0000000000C38000-memory.dmp

Filesize
92KB

Download
memory/4980-3-0x0000000000C20000-0x00000000012C0000-memory.dmp

Filesize
6.6MB

Download
memory/4980-4-0x0000000000C20000-0x00000000012C0000-memory.dmp

Filesize
6.6MB

Download