stealc | 39c70553879c5b9162ac95578f271a2f1a5cb13b21cb32a153e7fcd83d37f50a

Analysis

max time kernel
94s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2024 02:25

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General

Target

39c70553879c5b9162ac95578f271a2f1a5cb13b21cb32a153e7fcd83d37f50a.exe
Size

4.9MB
MD5

ea853f2d8229cfa39e49a83fa6c59372
SHA1

d00c38b522abdefd2ed9114963d7f89ab066f49d
SHA256

39c70553879c5b9162ac95578f271a2f1a5cb13b21cb32a153e7fcd83d37f50a
SHA512

b7548f8acf8b64d9c244b7f6376ea82bdf424fc3050a7fa794529fbf160e2ecfd44b5c1adcb92ae416f41d4d8ee1c30ed3d06f9ede6b04029871c0fcf7cf08b8
SSDEEP

24576:k9WW3VAzGWt10vF4iQisAEo0txxwPNRNKskF3NUkXRfrkQgp2OAozeOIIqrovBff:k9W1zGWMvkiwttxx1eD/tHBT5yUSb

Score

10^/10

stealc drum discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

drum

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__	39c70553879c5b9162ac95578f271a2f1a5cb13b21cb32a153e7fcd83d37f50a.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	39c70553879c5b9162ac95578f271a2f1a5cb13b21cb32a153e7fcd83d37f50a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	39c70553879c5b9162ac95578f271a2f1a5cb13b21cb32a153e7fcd83d37f50a.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-1-5-21-4089630652-1596403869-279772308-1000\Software\Wine	39c70553879c5b9162ac95578f271a2f1a5cb13b21cb32a153e7fcd83d37f50a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4308	39c70553879c5b9162ac95578f271a2f1a5cb13b21cb32a153e7fcd83d37f50a.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	39c70553879c5b9162ac95578f271a2f1a5cb13b21cb32a153e7fcd83d37f50a.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4308	39c70553879c5b9162ac95578f271a2f1a5cb13b21cb32a153e7fcd83d37f50a.exe
4308	39c70553879c5b9162ac95578f271a2f1a5cb13b21cb32a153e7fcd83d37f50a.exe

C:\Users\Admin\AppData\Local\Temp\39c70553879c5b9162ac95578f271a2f1a5cb13b21cb32a153e7fcd83d37f50a.exe
"C:\Users\Admin\AppData\Local\Temp\39c70553879c5b9162ac95578f271a2f1a5cb13b21cb32a153e7fcd83d37f50a.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:4308

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/4308-0-0x0000000000560000-0x0000000000A50000-memory.dmp

Filesize
4.9MB

Download
memory/4308-1-0x0000000077D34000-0x0000000077D36000-memory.dmp

Filesize
8KB

Download
memory/4308-3-0x0000000000560000-0x0000000000A50000-memory.dmp

Filesize
4.9MB

Download
memory/4308-2-0x0000000000561000-0x00000000007AA000-memory.dmp

Filesize
2.3MB

Download
memory/4308-4-0x0000000000560000-0x0000000000A50000-memory.dmp

Filesize
4.9MB

Download
memory/4308-5-0x0000000000561000-0x00000000007AA000-memory.dmp

Filesize
2.3MB

Download