stealc | fb7b61d25814807d2e98b62cd026d0f4f2546002704263370ef5778bf3939f90

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
21/09/2024, 14:28

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General

Target

fb7b61d25814807d2e98b62cd026d0f4f2546002704263370ef5778bf3939f90.exe
Size

2.8MB
MD5

30c6b2e2a949825b48a9d6f9de72c923
SHA1

269447925f130138729c41a7e5f47e424e844cd4
SHA256

fb7b61d25814807d2e98b62cd026d0f4f2546002704263370ef5778bf3939f90
SHA512

70c642291da212888d09c8c152b05efa03e299a18586a0cf7c302b95f866add7096a6688af989cf6266e2139e5b247f29e565a921f90fa3d12da18ea582ffc85
SSDEEP

49152:Nv6XmEUiBDwT3DIP9WfboVx22uxx7iPWeh:NemEUiBkTTIP9ioLuxx7iPW0

Score

10^/10

stealc dear discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

dear

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__	fb7b61d25814807d2e98b62cd026d0f4f2546002704263370ef5778bf3939f90.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	fb7b61d25814807d2e98b62cd026d0f4f2546002704263370ef5778bf3939f90.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	fb7b61d25814807d2e98b62cd026d0f4f2546002704263370ef5778bf3939f90.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Wine	fb7b61d25814807d2e98b62cd026d0f4f2546002704263370ef5778bf3939f90.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2644	fb7b61d25814807d2e98b62cd026d0f4f2546002704263370ef5778bf3939f90.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	fb7b61d25814807d2e98b62cd026d0f4f2546002704263370ef5778bf3939f90.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2644	fb7b61d25814807d2e98b62cd026d0f4f2546002704263370ef5778bf3939f90.exe

C:\Users\Admin\AppData\Local\Temp\fb7b61d25814807d2e98b62cd026d0f4f2546002704263370ef5778bf3939f90.exe
"C:\Users\Admin\AppData\Local\Temp\fb7b61d25814807d2e98b62cd026d0f4f2546002704263370ef5778bf3939f90.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:2644

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/2644-0-0x0000000001390000-0x0000000001888000-memory.dmp

Filesize
5.0MB

Download
memory/2644-1-0x0000000077C40000-0x0000000077C42000-memory.dmp

Filesize
8KB

Download
memory/2644-2-0x0000000001391000-0x00000000013A5000-memory.dmp

Filesize
80KB

Download
memory/2644-3-0x0000000001390000-0x0000000001888000-memory.dmp

Filesize
5.0MB

Download
memory/2644-5-0x0000000001390000-0x0000000001888000-memory.dmp

Filesize
5.0MB

Download