stealc | bba4cd97ea9a1dbe8b1bb1dc19474a22c4f3427ff8ae695f64e93af58ce16eaa

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-01-2025 21:35

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General

Target

bba4cd97ea9a1dbe8b1bb1dc19474a22c4f3427ff8ae695f64e93af58ce16eaa.exe
Size

1.7MB
MD5

608d9794c3186086d7df2cb2ab399ed6
SHA1

b387e6d8e8cfceaacd4d9aba6c99f269311143db
SHA256

bba4cd97ea9a1dbe8b1bb1dc19474a22c4f3427ff8ae695f64e93af58ce16eaa
SHA512

e31e29e9fd1a72056a96088afb45f5e505d3a40e4d37d4a352b09461d636b8b7e63e65e1d9624d7aa871fea05fcec251e3ea80763df9d286d3e1833178c29c76
SSDEEP

49152:oPwdxihdE+OuJ9FtL1LuopfCQaGcWKFP8UYboRFd:5AdkAF6oxaGcWKFUVud

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__	bba4cd97ea9a1dbe8b1bb1dc19474a22c4f3427ff8ae695f64e93af58ce16eaa.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	bba4cd97ea9a1dbe8b1bb1dc19474a22c4f3427ff8ae695f64e93af58ce16eaa.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	bba4cd97ea9a1dbe8b1bb1dc19474a22c4f3427ff8ae695f64e93af58ce16eaa.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-1-5-21-493223053-2004649691-1575712786-1000\Software\Wine	bba4cd97ea9a1dbe8b1bb1dc19474a22c4f3427ff8ae695f64e93af58ce16eaa.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4700	bba4cd97ea9a1dbe8b1bb1dc19474a22c4f3427ff8ae695f64e93af58ce16eaa.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	bba4cd97ea9a1dbe8b1bb1dc19474a22c4f3427ff8ae695f64e93af58ce16eaa.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4700	bba4cd97ea9a1dbe8b1bb1dc19474a22c4f3427ff8ae695f64e93af58ce16eaa.exe
4700	bba4cd97ea9a1dbe8b1bb1dc19474a22c4f3427ff8ae695f64e93af58ce16eaa.exe

C:\Users\Admin\AppData\Local\Temp\bba4cd97ea9a1dbe8b1bb1dc19474a22c4f3427ff8ae695f64e93af58ce16eaa.exe
"C:\Users\Admin\AppData\Local\Temp\bba4cd97ea9a1dbe8b1bb1dc19474a22c4f3427ff8ae695f64e93af58ce16eaa.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:4700

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/4700-0-0x0000000000B60000-0x00000000011F3000-memory.dmp

Filesize
6.6MB

Download
memory/4700-1-0x0000000077784000-0x0000000077786000-memory.dmp

Filesize
8KB

Download
memory/4700-2-0x0000000000B61000-0x0000000000B78000-memory.dmp

Filesize
92KB

Download
memory/4700-4-0x0000000000B60000-0x00000000011F3000-memory.dmp

Filesize
6.6MB

Download
memory/4700-5-0x0000000000B60000-0x00000000011F3000-memory.dmp

Filesize
6.6MB

Download