stealc | e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458

Analysis

max time kernel
120s
max time network
128s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-11-2024 08:55

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General

Target

e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.exe
Size

1.7MB
MD5

71a545e3b2110df4ce7ccec9dc2a4f9a
SHA1

e3a2be77d404af85e1251918a9c8f01c5586ce49
SHA256

e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458
SHA512

249dd250472763c76934610e5838620e2e21b6c66ffc7d9de88a0d74600a63de79545db98dda43e8f07d5261bbdbd94bb6c5099a00f905f0ddc18a4ba7b11831
SSDEEP

49152:tdn/E1sQ9syY4L4odaX6mnFoHHdUUTCgH:t5/Ek56VHmUe

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:

e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.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:

e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.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:

e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.exe

pid process

1640 e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.exe

pid	process
1640	e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.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:

e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.exe

pid process

1640 e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.exe

pid	process
1640	e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.exe

C:\Users\Admin\AppData\Local\Temp\e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.exe
"C:\Users\Admin\AppData\Local\Temp\e45f5355f8b2bb64ba940220e643d632ea4469c2be61ca107d8af31709efb458.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:1640

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/1640-0-0x0000000000B80000-0x0000000001215000-memory.dmp

Filesize
6.6MB

Download
memory/1640-1-0x0000000076F50000-0x0000000076F52000-memory.dmp

Filesize
8KB

Download
memory/1640-2-0x0000000000B81000-0x0000000000B98000-memory.dmp

Filesize
92KB

Download
memory/1640-3-0x0000000000B80000-0x0000000001215000-memory.dmp

Filesize
6.6MB

Download
memory/1640-4-0x0000000000B80000-0x0000000001215000-memory.dmp

Filesize
6.6MB

Download