stealc | c88a778bbc27987aaa0f0ed646afccd7601102adad31cb45daf382f6c165d371

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-01-2025 05:18

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General

Target

c88a778bbc27987aaa0f0ed646afccd7601102adad31cb45daf382f6c165d371.exe
Size

1.7MB
MD5

b86acd446f0cdc8f7c2ef87545f5ea0d
SHA1

f4d2ffba82a0e72e18ad80a0b2c858bcb2aa2197
SHA256

c88a778bbc27987aaa0f0ed646afccd7601102adad31cb45daf382f6c165d371
SHA512

6d00ce1814b1a0a9ce3e4f2be42e86be94bfb3fdfe0a1e62e02dd0db6275990f90461ed37b93e86bc2b6ef26774058e5353199848b7e16fd001aae04cc8dc717
SSDEEP

49152:v+7yfYe+CZCng9GI+0f+MYyrrp1R2174LY:v+UYeEg9G4f+fy7l8

Score

10^/10

stealc stok defense_evasion discovery 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

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	c88a778bbc27987aaa0f0ed646afccd7601102adad31cb45daf382f6c165d371.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	c88a778bbc27987aaa0f0ed646afccd7601102adad31cb45daf382f6c165d371.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	c88a778bbc27987aaa0f0ed646afccd7601102adad31cb45daf382f6c165d371.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.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	c88a778bbc27987aaa0f0ed646afccd7601102adad31cb45daf382f6c165d371.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
716	c88a778bbc27987aaa0f0ed646afccd7601102adad31cb45daf382f6c165d371.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	c88a778bbc27987aaa0f0ed646afccd7601102adad31cb45daf382f6c165d371.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
716	c88a778bbc27987aaa0f0ed646afccd7601102adad31cb45daf382f6c165d371.exe
716	c88a778bbc27987aaa0f0ed646afccd7601102adad31cb45daf382f6c165d371.exe

C:\Users\Admin\AppData\Local\Temp\c88a778bbc27987aaa0f0ed646afccd7601102adad31cb45daf382f6c165d371.exe
"C:\Users\Admin\AppData\Local\Temp\c88a778bbc27987aaa0f0ed646afccd7601102adad31cb45daf382f6c165d371.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:716

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/716-0-0x00000000007F0000-0x0000000000E81000-memory.dmp

Filesize
6.6MB

Download
memory/716-1-0x0000000077B34000-0x0000000077B36000-memory.dmp

Filesize
8KB

Download
memory/716-2-0x00000000007F1000-0x0000000000808000-memory.dmp

Filesize
92KB

Download
memory/716-5-0x00000000007F0000-0x0000000000E81000-memory.dmp

Filesize
6.6MB

Download
memory/716-4-0x00000000007F0000-0x0000000000E81000-memory.dmp

Filesize
6.6MB

Download