stealc | 88359e2cf798ed00c4be01cf59eba68ca2a60d47084c4b066a5b294dc3fafa7d

Analysis

max time kernel
122s
max time network
128s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 03:00

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General

Target

88359e2cf798ed00c4be01cf59eba68ca2a60d47084c4b066a5b294dc3fafa7d.exe
Size

1.7MB
MD5

6032908392c4951140ecb7830b0a0538
SHA1

13a821604c15f9947c076c2f705c4e8b085050f5
SHA256

88359e2cf798ed00c4be01cf59eba68ca2a60d47084c4b066a5b294dc3fafa7d
SHA512

c61dd54a543a7c8f2c79da920b5fe518ab328595299445742d9bbc65abf1166e20399ab40f2be395126d413a7699458b32bcc64c6b40eda8f1d44fc5052630f3
SSDEEP

49152:vXwnELO1aTOxRI8Vp2qcjkQBqOq+51YIEXy8Fllec:vXwnEy1KOQ8VoOO35CIEJlf

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__	88359e2cf798ed00c4be01cf59eba68ca2a60d47084c4b066a5b294dc3fafa7d.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	88359e2cf798ed00c4be01cf59eba68ca2a60d47084c4b066a5b294dc3fafa7d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	88359e2cf798ed00c4be01cf59eba68ca2a60d47084c4b066a5b294dc3fafa7d.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	88359e2cf798ed00c4be01cf59eba68ca2a60d47084c4b066a5b294dc3fafa7d.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2536	88359e2cf798ed00c4be01cf59eba68ca2a60d47084c4b066a5b294dc3fafa7d.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	88359e2cf798ed00c4be01cf59eba68ca2a60d47084c4b066a5b294dc3fafa7d.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2536	88359e2cf798ed00c4be01cf59eba68ca2a60d47084c4b066a5b294dc3fafa7d.exe

C:\Users\Admin\AppData\Local\Temp\88359e2cf798ed00c4be01cf59eba68ca2a60d47084c4b066a5b294dc3fafa7d.exe
"C:\Users\Admin\AppData\Local\Temp\88359e2cf798ed00c4be01cf59eba68ca2a60d47084c4b066a5b294dc3fafa7d.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:2536

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/2536-0-0x0000000001330000-0x00000000019C2000-memory.dmp

Filesize
6.6MB

Download
memory/2536-1-0x0000000077050000-0x0000000077052000-memory.dmp

Filesize
8KB

Download
memory/2536-2-0x0000000001331000-0x0000000001348000-memory.dmp

Filesize
92KB

Download
memory/2536-3-0x0000000001330000-0x00000000019C2000-memory.dmp

Filesize
6.6MB

Download
memory/2536-5-0x0000000001330000-0x00000000019C2000-memory.dmp

Filesize
6.6MB

Download