stealc | c1bff63e4e1aa1fccb42244c12ef8db8ebc4e0e3a1339f58e3801ee9f8e7ef48

Analysis

max time kernel
93s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06-11-2024 16:15

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General

Target

c1bff63e4e1aa1fccb42244c12ef8db8ebc4e0e3a1339f58e3801ee9f8e7ef48.exe
Size

2.1MB
MD5

686c6902c3cea93c353dfb5532d73013
SHA1

760cd9a27a11acef4b009381206e5788b539d680
SHA256

c1bff63e4e1aa1fccb42244c12ef8db8ebc4e0e3a1339f58e3801ee9f8e7ef48
SHA512

d7aa28fa9fd142d76e95d386a8c68aff2c258e2063c442308bd53ea38c6956ee988b55e5453f8f08c6be4901ee6943e90bb745ce1ac8a1c5bab2a2462d56f119
SSDEEP

49152:paS9i86GfORLZTkRaVZ+m1CW4exRVO1moW:10PG2z+m1P4exDOY

Score

10^/10

stealc tale discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

tale

http://185.215.113.206

Attributes

url_path
/6c4adf523b719729.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__	c1bff63e4e1aa1fccb42244c12ef8db8ebc4e0e3a1339f58e3801ee9f8e7ef48.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	c1bff63e4e1aa1fccb42244c12ef8db8ebc4e0e3a1339f58e3801ee9f8e7ef48.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	c1bff63e4e1aa1fccb42244c12ef8db8ebc4e0e3a1339f58e3801ee9f8e7ef48.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-1-5-21-940901362-3608833189-1915618603-1000\Software\Wine	c1bff63e4e1aa1fccb42244c12ef8db8ebc4e0e3a1339f58e3801ee9f8e7ef48.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
5036	c1bff63e4e1aa1fccb42244c12ef8db8ebc4e0e3a1339f58e3801ee9f8e7ef48.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	c1bff63e4e1aa1fccb42244c12ef8db8ebc4e0e3a1339f58e3801ee9f8e7ef48.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5036	c1bff63e4e1aa1fccb42244c12ef8db8ebc4e0e3a1339f58e3801ee9f8e7ef48.exe
5036	c1bff63e4e1aa1fccb42244c12ef8db8ebc4e0e3a1339f58e3801ee9f8e7ef48.exe

C:\Users\Admin\AppData\Local\Temp\c1bff63e4e1aa1fccb42244c12ef8db8ebc4e0e3a1339f58e3801ee9f8e7ef48.exe
"C:\Users\Admin\AppData\Local\Temp\c1bff63e4e1aa1fccb42244c12ef8db8ebc4e0e3a1339f58e3801ee9f8e7ef48.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:5036

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/5036-0-0x00000000003A0000-0x0000000000ADE000-memory.dmp

Filesize
7.2MB

Download
memory/5036-1-0x00000000770F4000-0x00000000770F6000-memory.dmp

Filesize
8KB

Download
memory/5036-2-0x00000000003A1000-0x0000000000409000-memory.dmp

Filesize
416KB

Download
memory/5036-3-0x00000000003A0000-0x0000000000ADE000-memory.dmp

Filesize
7.2MB

Download
memory/5036-5-0x00000000003A0000-0x0000000000ADE000-memory.dmp

Filesize
7.2MB

Download