stealc | 93fd99b7d3a68259cdb4a55768f80cd19540b17bf2e0df5fb7533ac8705c6fb7

Analysis

max time kernel
14s
max time network
18s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22-11-2024 01:00

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General

Target

ea7617b4a5571a89a06ef9bb195dc92a178ea4e0a6a514030eb288f54d26f0a3.exe
Size

1.7MB
MD5

0c50a08dffa73cfbb9ee5ba4382bdefc
SHA1

b21d45218d280416859c21b9c628315d6d71690f
SHA256

ea7617b4a5571a89a06ef9bb195dc92a178ea4e0a6a514030eb288f54d26f0a3
SHA512

529275d8e96270c711ecee981bb07a3e70eab1a01e3550898449cc9cf2da57b0e823d36fcbfca92f006ebd2b47dd1e9d7dbf2367baf14e010f179e521eeabeea
SSDEEP

49152:trCQTxztO4r76EMuOfB/vxbPGpz5aFot5wlN:zrO276+6B/ZbYaFo5wlN

Score

10^/10

stealc mars discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

mars

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

Processes:

ea7617b4a5571a89a06ef9bb195dc92a178ea4e0a6a514030eb288f54d26f0a3.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	ea7617b4a5571a89a06ef9bb195dc92a178ea4e0a6a514030eb288f54d26f0a3.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

Processes:

ea7617b4a5571a89a06ef9bb195dc92a178ea4e0a6a514030eb288f54d26f0a3.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	ea7617b4a5571a89a06ef9bb195dc92a178ea4e0a6a514030eb288f54d26f0a3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ea7617b4a5571a89a06ef9bb195dc92a178ea4e0a6a514030eb288f54d26f0a3.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

Processes:

ea7617b4a5571a89a06ef9bb195dc92a178ea4e0a6a514030eb288f54d26f0a3.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	ea7617b4a5571a89a06ef9bb195dc92a178ea4e0a6a514030eb288f54d26f0a3.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

ea7617b4a5571a89a06ef9bb195dc92a178ea4e0a6a514030eb288f54d26f0a3.exe

pid	Process
392	ea7617b4a5571a89a06ef9bb195dc92a178ea4e0a6a514030eb288f54d26f0a3.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

Processes:

ea7617b4a5571a89a06ef9bb195dc92a178ea4e0a6a514030eb288f54d26f0a3.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ea7617b4a5571a89a06ef9bb195dc92a178ea4e0a6a514030eb288f54d26f0a3.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

ea7617b4a5571a89a06ef9bb195dc92a178ea4e0a6a514030eb288f54d26f0a3.exe

pid	Process
392	ea7617b4a5571a89a06ef9bb195dc92a178ea4e0a6a514030eb288f54d26f0a3.exe

C:\Users\Admin\AppData\Local\Temp\ea7617b4a5571a89a06ef9bb195dc92a178ea4e0a6a514030eb288f54d26f0a3.exe
"C:\Users\Admin\AppData\Local\Temp\ea7617b4a5571a89a06ef9bb195dc92a178ea4e0a6a514030eb288f54d26f0a3.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:392

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/392-0-0x0000000000FD0000-0x000000000165B000-memory.dmp

Filesize
6.5MB

Download
memory/392-1-0x00000000777B0000-0x00000000777B2000-memory.dmp

Filesize
8KB

Download
memory/392-2-0x0000000000FD1000-0x0000000000FE8000-memory.dmp

Filesize
92KB

Download
memory/392-3-0x0000000000FD0000-0x000000000165B000-memory.dmp

Filesize
6.5MB

Download
memory/392-4-0x0000000000FD0000-0x000000000165B000-memory.dmp

Filesize
6.5MB

Download