stealc | 2550273e781b4c50a35a935a5697e181d310bd6c227cdd5b43d811e7ac1ca14d

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 02:20

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General

Target

2550273e781b4c50a35a935a5697e181d310bd6c227cdd5b43d811e7ac1ca14d.exe
Size

1.7MB
MD5

1d402acdafdb238795c8a55ab5bbc13e
SHA1

95e793211110e987d921c3dddb8d1e2171824be9
SHA256

2550273e781b4c50a35a935a5697e181d310bd6c227cdd5b43d811e7ac1ca14d
SHA512

bba8b91139e5127685673b2fa8cfca9688bfe9a62e4645779b964cc82ec9b62e2fd7081894731ff79acef33daf7dbe676c3ef01c39261adb0400c1d9e70faa76
SSDEEP

24576:46Cu9OCZW2NEPuGVLk43qwMNrCcIRoWidd/HOCKq6Enu2lzLP6WY8SDXiVLewYc6:CudEmGV4IMFWif/HbuszLP6pDm4+QW

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	2550273e781b4c50a35a935a5697e181d310bd6c227cdd5b43d811e7ac1ca14d.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	2550273e781b4c50a35a935a5697e181d310bd6c227cdd5b43d811e7ac1ca14d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	2550273e781b4c50a35a935a5697e181d310bd6c227cdd5b43d811e7ac1ca14d.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-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	2550273e781b4c50a35a935a5697e181d310bd6c227cdd5b43d811e7ac1ca14d.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2512	2550273e781b4c50a35a935a5697e181d310bd6c227cdd5b43d811e7ac1ca14d.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	2550273e781b4c50a35a935a5697e181d310bd6c227cdd5b43d811e7ac1ca14d.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2512	2550273e781b4c50a35a935a5697e181d310bd6c227cdd5b43d811e7ac1ca14d.exe

C:\Users\Admin\AppData\Local\Temp\2550273e781b4c50a35a935a5697e181d310bd6c227cdd5b43d811e7ac1ca14d.exe
"C:\Users\Admin\AppData\Local\Temp\2550273e781b4c50a35a935a5697e181d310bd6c227cdd5b43d811e7ac1ca14d.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:2512

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/2512-0-0x00000000009A0000-0x0000000001046000-memory.dmp

Filesize
6.6MB

Download
memory/2512-1-0x00000000774E0000-0x00000000774E2000-memory.dmp

Filesize
8KB

Download
memory/2512-3-0x00000000009A0000-0x0000000001046000-memory.dmp

Filesize
6.6MB

Download
memory/2512-2-0x00000000009A1000-0x00000000009B8000-memory.dmp

Filesize
92KB

Download
memory/2512-5-0x00000000009A0000-0x0000000001046000-memory.dmp

Filesize
6.6MB

Download