stealc | 1502bfbec0e7b3e3e05a49f167af636aecf827929ee040a31ab741430e376673

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-12-2024 16:52

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General

Target

1502bfbec0e7b3e3e05a49f167af636aecf827929ee040a31ab741430e376673.exe
Size

1.7MB
MD5

db28ec5a0b170e2b561cd296c4344953
SHA1

69c46ec05689fa271b309fa3b9e98dc9ec67d280
SHA256

1502bfbec0e7b3e3e05a49f167af636aecf827929ee040a31ab741430e376673
SHA512

17f8a0f85f4fcfa8a319337a78b30612b4066396b46d0fd0a1d7ac6d7c6b7f2d3eea2cdee4991207a8ff81bb77332c673d3d6e30604a3ffa3a80941c94e9dcc2
SSDEEP

49152:P3uwTV+lckVD7iEiveM4PiN2bdgaIVMN:P3uwTHU77Ajz8grVM

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__	1502bfbec0e7b3e3e05a49f167af636aecf827929ee040a31ab741430e376673.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	1502bfbec0e7b3e3e05a49f167af636aecf827929ee040a31ab741430e376673.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1502bfbec0e7b3e3e05a49f167af636aecf827929ee040a31ab741430e376673.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	1502bfbec0e7b3e3e05a49f167af636aecf827929ee040a31ab741430e376673.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2068	1502bfbec0e7b3e3e05a49f167af636aecf827929ee040a31ab741430e376673.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	1502bfbec0e7b3e3e05a49f167af636aecf827929ee040a31ab741430e376673.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2068	1502bfbec0e7b3e3e05a49f167af636aecf827929ee040a31ab741430e376673.exe

C:\Users\Admin\AppData\Local\Temp\1502bfbec0e7b3e3e05a49f167af636aecf827929ee040a31ab741430e376673.exe
"C:\Users\Admin\AppData\Local\Temp\1502bfbec0e7b3e3e05a49f167af636aecf827929ee040a31ab741430e376673.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:2068

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/2068-0-0x0000000000270000-0x00000000008F0000-memory.dmp

Filesize
6.5MB

Download
memory/2068-1-0x00000000774A0000-0x00000000774A2000-memory.dmp

Filesize
8KB

Download
memory/2068-2-0x0000000000271000-0x0000000000288000-memory.dmp

Filesize
92KB

Download
memory/2068-3-0x0000000000270000-0x00000000008F0000-memory.dmp

Filesize
6.5MB

Download
memory/2068-4-0x0000000000270000-0x00000000008F0000-memory.dmp

Filesize
6.5MB

Download
memory/2068-5-0x0000000000270000-0x00000000008F0000-memory.dmp

Filesize
6.5MB

Download
memory/2068-6-0x0000000000270000-0x00000000008F0000-memory.dmp

Filesize
6.5MB

Download
memory/2068-7-0x0000000000270000-0x00000000008F0000-memory.dmp

Filesize
6.5MB

Download
memory/2068-8-0x0000000000270000-0x00000000008F0000-memory.dmp

Filesize
6.5MB

Download