stealc | 7df486bff2cc9fa881d8f349fdea5d852386e5bfac079af83e1655ac990d3a45

Analysis

max time kernel
76s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/12/2024, 06:30

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General

Target

7df486bff2cc9fa881d8f349fdea5d852386e5bfac079af83e1655ac990d3a45.exe
Size

1.7MB
MD5

b3fb595055785092f442191372711b8d
SHA1

af63e188660f4676300cf420e77008d41232c46d
SHA256

7df486bff2cc9fa881d8f349fdea5d852386e5bfac079af83e1655ac990d3a45
SHA512

f12c51db89fc4587d709d8bc2e0751a499feb783ff49b2eb687ffd3b461150e5e38e943d5d5a32a853d40365c7c3f852bccc33771db49b4e8bc9247e9c9d4c6a
SSDEEP

24576:/XRnTWS9M6G832tc8aegrm2rIEjvWDBqE0A+hBcwbPna7r4EK5DwUozaT:/BaSm6nCaetEKDcH+7rD5U1T

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__	7df486bff2cc9fa881d8f349fdea5d852386e5bfac079af83e1655ac990d3a45.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\VideoBiosVersion	7df486bff2cc9fa881d8f349fdea5d852386e5bfac079af83e1655ac990d3a45.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	7df486bff2cc9fa881d8f349fdea5d852386e5bfac079af83e1655ac990d3a45.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Wine	7df486bff2cc9fa881d8f349fdea5d852386e5bfac079af83e1655ac990d3a45.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2492	7df486bff2cc9fa881d8f349fdea5d852386e5bfac079af83e1655ac990d3a45.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	7df486bff2cc9fa881d8f349fdea5d852386e5bfac079af83e1655ac990d3a45.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2492	7df486bff2cc9fa881d8f349fdea5d852386e5bfac079af83e1655ac990d3a45.exe

C:\Users\Admin\AppData\Local\Temp\7df486bff2cc9fa881d8f349fdea5d852386e5bfac079af83e1655ac990d3a45.exe
"C:\Users\Admin\AppData\Local\Temp\7df486bff2cc9fa881d8f349fdea5d852386e5bfac079af83e1655ac990d3a45.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:2492

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/2492-0-0x0000000000C80000-0x0000000001319000-memory.dmp

Filesize
6.6MB

Download
memory/2492-1-0x0000000077A00000-0x0000000077A02000-memory.dmp

Filesize
8KB

Download
memory/2492-2-0x0000000000C81000-0x0000000000C98000-memory.dmp

Filesize
92KB

Download
memory/2492-3-0x0000000000C80000-0x0000000001319000-memory.dmp

Filesize
6.6MB

Download
memory/2492-5-0x0000000000C80000-0x0000000001319000-memory.dmp

Filesize
6.6MB

Download