stealc | e20885cb4967e6f72d4c70dcb97c1fd19aefff88972723b266483a09966916ca

Analysis

max time kernel
122s
max time network
127s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22-11-2024 03:12

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General

Target

e20885cb4967e6f72d4c70dcb97c1fd19aefff88972723b266483a09966916ca.exe
Size

1.7MB
MD5

e1dcc0eabbbedc586e3f5fd45f8735d0
SHA1

b434195b6c7d5a4d5960840d18df55cc1fc3ff79
SHA256

e20885cb4967e6f72d4c70dcb97c1fd19aefff88972723b266483a09966916ca
SHA512

ef01d622cacef1786a620a25d13bb02280282abf83e5c814bdd22aaf33f222ca88e4af050f0b86ffb82c2b4f21d10661a51008b2de19a2b14085038d046a6254
SSDEEP

49152:g7Hqe25z6iBj0ylizFsHZubjhgRwacIj3qeSjikp:gmeTylHZublgRwajCjikp

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:

e20885cb4967e6f72d4c70dcb97c1fd19aefff88972723b266483a09966916ca.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	e20885cb4967e6f72d4c70dcb97c1fd19aefff88972723b266483a09966916ca.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:

e20885cb4967e6f72d4c70dcb97c1fd19aefff88972723b266483a09966916ca.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	e20885cb4967e6f72d4c70dcb97c1fd19aefff88972723b266483a09966916ca.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	e20885cb4967e6f72d4c70dcb97c1fd19aefff88972723b266483a09966916ca.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:

e20885cb4967e6f72d4c70dcb97c1fd19aefff88972723b266483a09966916ca.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	e20885cb4967e6f72d4c70dcb97c1fd19aefff88972723b266483a09966916ca.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

e20885cb4967e6f72d4c70dcb97c1fd19aefff88972723b266483a09966916ca.exe

pid	Process
2044	e20885cb4967e6f72d4c70dcb97c1fd19aefff88972723b266483a09966916ca.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:

e20885cb4967e6f72d4c70dcb97c1fd19aefff88972723b266483a09966916ca.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e20885cb4967e6f72d4c70dcb97c1fd19aefff88972723b266483a09966916ca.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

e20885cb4967e6f72d4c70dcb97c1fd19aefff88972723b266483a09966916ca.exe

pid	Process
2044	e20885cb4967e6f72d4c70dcb97c1fd19aefff88972723b266483a09966916ca.exe

C:\Users\Admin\AppData\Local\Temp\e20885cb4967e6f72d4c70dcb97c1fd19aefff88972723b266483a09966916ca.exe
"C:\Users\Admin\AppData\Local\Temp\e20885cb4967e6f72d4c70dcb97c1fd19aefff88972723b266483a09966916ca.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:2044

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/2044-0-0x00000000013E0000-0x0000000001A59000-memory.dmp

Filesize
6.5MB

Download
memory/2044-1-0x0000000077A10000-0x0000000077A12000-memory.dmp

Filesize
8KB

Download
memory/2044-2-0x00000000013E1000-0x00000000013F8000-memory.dmp

Filesize
92KB

Download
memory/2044-3-0x00000000013E0000-0x0000000001A59000-memory.dmp

Filesize
6.5MB

Download
memory/2044-4-0x00000000013E0000-0x0000000001A59000-memory.dmp

Filesize
6.5MB

Download