stealc | 66dfcfc986c4df1907e40c74d4c0e5d7c4b1c5691601344ab2285680af7e063c

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13/10/2024, 06:38

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General

Target

66dfcfc986c4df1907e40c74d4c0e5d7c4b1c5691601344ab2285680af7e063c.exe
Size

1.8MB
MD5

c6779f62078eb895e8aa118717b62ed9
SHA1

f7902cacb621c59e8d026f0f2b7cad231a20dd26
SHA256

66dfcfc986c4df1907e40c74d4c0e5d7c4b1c5691601344ab2285680af7e063c
SHA512

77839fd07b9082a2c2cb966fdb2e455641f72d5bdcd1eb4affe971b9e8f721c126e6ff55b4110fc25fd45b8877621de00af071d1f90621d3421dea276a834332
SSDEEP

49152:k6b5m+XIbIdcQ7VfSUkHJHFbb+rq7v5mida7Q:k65IEdh7Y3pFbmq7v5xS

Score

10^/10

stealc doma discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

doma

http://185.215.113.37

Attributes

url_path
/e2b1563c6670f193.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer 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__	66dfcfc986c4df1907e40c74d4c0e5d7c4b1c5691601344ab2285680af7e063c.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	66dfcfc986c4df1907e40c74d4c0e5d7c4b1c5691601344ab2285680af7e063c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	66dfcfc986c4df1907e40c74d4c0e5d7c4b1c5691601344ab2285680af7e063c.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	66dfcfc986c4df1907e40c74d4c0e5d7c4b1c5691601344ab2285680af7e063c.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3040	66dfcfc986c4df1907e40c74d4c0e5d7c4b1c5691601344ab2285680af7e063c.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	66dfcfc986c4df1907e40c74d4c0e5d7c4b1c5691601344ab2285680af7e063c.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3040	66dfcfc986c4df1907e40c74d4c0e5d7c4b1c5691601344ab2285680af7e063c.exe

C:\Users\Admin\AppData\Local\Temp\66dfcfc986c4df1907e40c74d4c0e5d7c4b1c5691601344ab2285680af7e063c.exe
"C:\Users\Admin\AppData\Local\Temp\66dfcfc986c4df1907e40c74d4c0e5d7c4b1c5691601344ab2285680af7e063c.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:3040

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/3040-0-0x00000000002B0000-0x0000000000955000-memory.dmp

Filesize
6.6MB

Download
memory/3040-1-0x00000000775A0000-0x00000000775A2000-memory.dmp

Filesize
8KB

Download
memory/3040-3-0x00000000002B0000-0x0000000000955000-memory.dmp

Filesize
6.6MB

Download
memory/3040-2-0x00000000002B1000-0x00000000002D4000-memory.dmp

Filesize
140KB

Download
memory/3040-4-0x00000000002B0000-0x0000000000955000-memory.dmp

Filesize
6.6MB

Download