stealc | 6f522eff93b41e3abe50bca8df761fd0e6313117578f3abc7e3f348eaebdabc3

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-12-2024 19:59

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General

Target

6f522eff93b41e3abe50bca8df761fd0e6313117578f3abc7e3f348eaebdabc3.exe
Size

1.8MB
MD5

73d405f0df578e1ed00dfeba1b9c5a93
SHA1

37b57abf91513bc85b27e4c4ae85b75ff87898e1
SHA256

6f522eff93b41e3abe50bca8df761fd0e6313117578f3abc7e3f348eaebdabc3
SHA512

5b2b66e9cc75ca7d0322b6af3b4f6b9c54034de22f9a06372e5acae0aec6761be01ef6b6877619963dc5771f9063ab3648c8db390945a9db0e9503f66d9eba74
SSDEEP

49152:pPEgUnW76fFOTw0OtHWefWFtSQfPklw+nE:pPWn/fFAU2eOnSQfclTn

Score

10^/10

stealc stok discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

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__	6f522eff93b41e3abe50bca8df761fd0e6313117578f3abc7e3f348eaebdabc3.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	6f522eff93b41e3abe50bca8df761fd0e6313117578f3abc7e3f348eaebdabc3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	6f522eff93b41e3abe50bca8df761fd0e6313117578f3abc7e3f348eaebdabc3.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-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	6f522eff93b41e3abe50bca8df761fd0e6313117578f3abc7e3f348eaebdabc3.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4036	6f522eff93b41e3abe50bca8df761fd0e6313117578f3abc7e3f348eaebdabc3.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	6f522eff93b41e3abe50bca8df761fd0e6313117578f3abc7e3f348eaebdabc3.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4036	6f522eff93b41e3abe50bca8df761fd0e6313117578f3abc7e3f348eaebdabc3.exe
4036	6f522eff93b41e3abe50bca8df761fd0e6313117578f3abc7e3f348eaebdabc3.exe

C:\Users\Admin\AppData\Local\Temp\6f522eff93b41e3abe50bca8df761fd0e6313117578f3abc7e3f348eaebdabc3.exe
"C:\Users\Admin\AppData\Local\Temp\6f522eff93b41e3abe50bca8df761fd0e6313117578f3abc7e3f348eaebdabc3.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:4036

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/4036-0-0x0000000000310000-0x00000000009BC000-memory.dmp

Filesize
6.7MB

Download
memory/4036-2-0x0000000000311000-0x0000000000328000-memory.dmp

Filesize
92KB

Download
memory/4036-1-0x00000000779D4000-0x00000000779D6000-memory.dmp

Filesize
8KB

Download
memory/4036-3-0x0000000000310000-0x00000000009BC000-memory.dmp

Filesize
6.7MB

Download
memory/4036-5-0x0000000000310000-0x00000000009BC000-memory.dmp

Filesize
6.7MB

Download