stealc | 45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739

Analysis

max time kernel
96s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2024 02:21

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General

Target

45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739.exe
Size

1.8MB
MD5

3bdf8476f9736b3f51b8d5027679a6f5
SHA1

ca6ccfba4f7f15f476dd7cf64e3d78090ab593b2
SHA256

45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739
SHA512

6e26c7a0f4c07d230e2608783613c182906b8d628b945df1e4bd89e0a5cc8163fc19c0089b429b8cb4ae758937445e41f0c33ead8966bca57c2a478d9a3951e4
SSDEEP

49152:t8ATylKYvKdpifRxPntxjWWeG/CHYZO0FeW:GrlKEKLOR1nXjGYvAW

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:

45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739.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:

45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739.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:

45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739.exe

pid process

1652 45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739.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:

45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739.exe

pid	process
1652	45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739.exe
1652	45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739.exe

C:\Users\Admin\AppData\Local\Temp\45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739.exe
"C:\Users\Admin\AppData\Local\Temp\45926e2940bd8f454ce00ec717521e919b3d6dcdcc0c87d180106c1927589739.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:1652

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/1652-0-0x00000000002F0000-0x000000000099E000-memory.dmp

Filesize
6.7MB

Download
memory/1652-1-0x00000000777E4000-0x00000000777E6000-memory.dmp

Filesize
8KB

Download
memory/1652-2-0x00000000002F1000-0x0000000000308000-memory.dmp

Filesize
92KB

Download
memory/1652-3-0x00000000002F0000-0x000000000099E000-memory.dmp

Filesize
6.7MB

Download
memory/1652-5-0x00000000002F0000-0x000000000099E000-memory.dmp

Filesize
6.7MB

Download