stealc | 78acc977d365d9075289d4ff22a1bd8abe0b36dd31d541d2fb1da955acba891a

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2024 07:50

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General

Target

78acc977d365d9075289d4ff22a1bd8abe0b36dd31d541d2fb1da955acba891a.exe
Size

1.7MB
MD5

44acf94c8bd127aa013100bfc3267a07
SHA1

8e0d785a056d6dceb2eaa65b13e4108676b64d82
SHA256

78acc977d365d9075289d4ff22a1bd8abe0b36dd31d541d2fb1da955acba891a
SHA512

8d2ee0e26292c1fc11bbcfbd6150bb43e74cb11a52e0c6cb591ca59ee5bd622dc94b3c1e1f2a2d53e1862086e1a0c46b60bb691948fad36858901e74779dca81
SSDEEP

49152:3OpiRmhdO3JWgzhfJI1eYxVA/I5QCaQGgHItBYBYGngH8B7:3OoCdOUgtf6w6VA/CGaj7

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__	78acc977d365d9075289d4ff22a1bd8abe0b36dd31d541d2fb1da955acba891a.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	78acc977d365d9075289d4ff22a1bd8abe0b36dd31d541d2fb1da955acba891a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	78acc977d365d9075289d4ff22a1bd8abe0b36dd31d541d2fb1da955acba891a.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-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	78acc977d365d9075289d4ff22a1bd8abe0b36dd31d541d2fb1da955acba891a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3644	78acc977d365d9075289d4ff22a1bd8abe0b36dd31d541d2fb1da955acba891a.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	78acc977d365d9075289d4ff22a1bd8abe0b36dd31d541d2fb1da955acba891a.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3644	78acc977d365d9075289d4ff22a1bd8abe0b36dd31d541d2fb1da955acba891a.exe
3644	78acc977d365d9075289d4ff22a1bd8abe0b36dd31d541d2fb1da955acba891a.exe

C:\Users\Admin\AppData\Local\Temp\78acc977d365d9075289d4ff22a1bd8abe0b36dd31d541d2fb1da955acba891a.exe
"C:\Users\Admin\AppData\Local\Temp\78acc977d365d9075289d4ff22a1bd8abe0b36dd31d541d2fb1da955acba891a.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:3644

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/3644-0-0x0000000000C70000-0x00000000012EF000-memory.dmp

Filesize
6.5MB

Download
memory/3644-1-0x0000000077EB4000-0x0000000077EB6000-memory.dmp

Filesize
8KB

Download
memory/3644-3-0x0000000000C70000-0x00000000012EF000-memory.dmp

Filesize
6.5MB

Download
memory/3644-2-0x0000000000C71000-0x0000000000C88000-memory.dmp

Filesize
92KB

Download
memory/3644-4-0x0000000000C70000-0x00000000012EF000-memory.dmp

Filesize
6.5MB

Download