stealc | 2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 05:28

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General

Target

2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe
Size

2.6MB
MD5

020c31437d986a6d83ae83c09a2e4887
SHA1

add0b44fd39a043e659cee280a5acbf6a22f5c44
SHA256

2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304
SHA512

8ad05463d1cebdbf8e1765d7c8c26df273f25d06654b1efe67997eb0930e6fe1e03e1d3ac0fd5d4ecfd07753f98e0b0b6dd2ae50d2dbe156a85def5ddd2aadec
SSDEEP

49152:76MKZD8x8gOdUVC+XQigB+Yj+gwcSSN8qxaGg1YD:X9GrUVC+XQtBNxVgiD

Score

10^/10

stealc rave discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

rave

http://185.215.113.103

Attributes

url_path
/e2b1563c6670f193.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer 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__	2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.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	2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.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-1-5-21-2392887640-1187051047-2909758433-1000\Software\Wine	2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
440	2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.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	2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
440	2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe
440	2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe

C:\Users\Admin\AppData\Local\Temp\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe
"C:\Users\Admin\AppData\Local\Temp\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.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:440

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/440-0-0x0000000000330000-0x0000000000800000-memory.dmp

Filesize
4.8MB

Download
memory/440-1-0x0000000077E84000-0x0000000077E86000-memory.dmp

Filesize
8KB

Download
memory/440-2-0x0000000000331000-0x0000000000345000-memory.dmp

Filesize
80KB

Download
memory/440-3-0x0000000000330000-0x0000000000800000-memory.dmp

Filesize
4.8MB

Download
memory/440-4-0x0000000000330000-0x0000000000800000-memory.dmp

Filesize
4.8MB

Download