stealc | b760368d6334177e98622678773c6cdb2a7bd3daee1a239905d660d30ef7dab8

Analysis

max time kernel
96s
max time network
146s
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, 07:18

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General

Target

b760368d6334177e98622678773c6cdb2a7bd3daee1a239905d660d30ef7dab8.exe
Size

5.0MB
MD5

eddd11483948341d3e23633223ea9808
SHA1

f547c2115b09d3c59c80472f03731dde01214891
SHA256

b760368d6334177e98622678773c6cdb2a7bd3daee1a239905d660d30ef7dab8
SHA512

a106e15e93c8f663ec69b368bf500cbfdc2f3a259190c05b740b99084cba562e4d29b412156de662807787ebc01b19c2bdffe434f938b9cbd3eb163eb69795ab
SSDEEP

49152:aC+kNNNNNNN+FkhL7a+FySmdJpN53TjFuTW1SKD5/kv4TVOnB:SkhLVM5dJp7TRWW1Swe4TVeB

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__	b760368d6334177e98622678773c6cdb2a7bd3daee1a239905d660d30ef7dab8.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	b760368d6334177e98622678773c6cdb2a7bd3daee1a239905d660d30ef7dab8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b760368d6334177e98622678773c6cdb2a7bd3daee1a239905d660d30ef7dab8.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-1-5-21-1045960512-3948844814-3059691613-1000\Software\Wine	b760368d6334177e98622678773c6cdb2a7bd3daee1a239905d660d30ef7dab8.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2072	b760368d6334177e98622678773c6cdb2a7bd3daee1a239905d660d30ef7dab8.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	b760368d6334177e98622678773c6cdb2a7bd3daee1a239905d660d30ef7dab8.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2072	b760368d6334177e98622678773c6cdb2a7bd3daee1a239905d660d30ef7dab8.exe
2072	b760368d6334177e98622678773c6cdb2a7bd3daee1a239905d660d30ef7dab8.exe

C:\Users\Admin\AppData\Local\Temp\b760368d6334177e98622678773c6cdb2a7bd3daee1a239905d660d30ef7dab8.exe
"C:\Users\Admin\AppData\Local\Temp\b760368d6334177e98622678773c6cdb2a7bd3daee1a239905d660d30ef7dab8.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:2072

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/2072-0-0x0000000000620000-0x0000000000B1B000-memory.dmp

Filesize
5.0MB

Download
memory/2072-1-0x0000000077A74000-0x0000000077A76000-memory.dmp

Filesize
8KB

Download
memory/2072-2-0x0000000000621000-0x000000000086A000-memory.dmp

Filesize
2.3MB

Download
memory/2072-4-0x0000000000620000-0x0000000000B1B000-memory.dmp

Filesize
5.0MB

Download
memory/2072-5-0x0000000000621000-0x000000000086A000-memory.dmp

Filesize
2.3MB

Download