stealc | b3cce25ca20d9598ae3672657a5f0c2492376a9a2ecce5e237095e2fc711b062

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-11-2024 11:03

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General

Target

b3cce25ca20d9598ae3672657a5f0c2492376a9a2ecce5e237095e2fc711b062N.exe
Size

2.1MB
MD5

960b155ce99ae2a9f450c54ad39b1960
SHA1

e14e7fc9aae50a834a7c4d5549668c6d4fd6289c
SHA256

b3cce25ca20d9598ae3672657a5f0c2492376a9a2ecce5e237095e2fc711b062
SHA512

03722e2d54e823c2df72454a84af01ec72f95ecd7558c198ec60a5075449ed5fc7de7be578b4e02b21ac16a018edb5c07c3ba0d76a586074047c84ec613a4c10
SSDEEP

49152:e4r2aBsti7wuLD+hFWLYwvlGlDV1pllOXTIFxxMKcjDHqItX:e4r28sDuLD+i0wlyVDOXkfyt

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__	b3cce25ca20d9598ae3672657a5f0c2492376a9a2ecce5e237095e2fc711b062N.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	b3cce25ca20d9598ae3672657a5f0c2492376a9a2ecce5e237095e2fc711b062N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b3cce25ca20d9598ae3672657a5f0c2492376a9a2ecce5e237095e2fc711b062N.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Wine	b3cce25ca20d9598ae3672657a5f0c2492376a9a2ecce5e237095e2fc711b062N.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2192	b3cce25ca20d9598ae3672657a5f0c2492376a9a2ecce5e237095e2fc711b062N.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	b3cce25ca20d9598ae3672657a5f0c2492376a9a2ecce5e237095e2fc711b062N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2192	b3cce25ca20d9598ae3672657a5f0c2492376a9a2ecce5e237095e2fc711b062N.exe

C:\Users\Admin\AppData\Local\Temp\b3cce25ca20d9598ae3672657a5f0c2492376a9a2ecce5e237095e2fc711b062N.exe
"C:\Users\Admin\AppData\Local\Temp\b3cce25ca20d9598ae3672657a5f0c2492376a9a2ecce5e237095e2fc711b062N.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:2192

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/2192-0-0x0000000000AC0000-0x00000000011FE000-memory.dmp

Filesize
7.2MB

Download
memory/2192-1-0x0000000077880000-0x0000000077882000-memory.dmp

Filesize
8KB

Download
memory/2192-2-0x0000000000AC1000-0x0000000000B29000-memory.dmp

Filesize
416KB

Download
memory/2192-3-0x0000000000AC0000-0x00000000011FE000-memory.dmp

Filesize
7.2MB

Download
memory/2192-4-0x0000000000AC0000-0x00000000011FE000-memory.dmp

Filesize
7.2MB

Download