stealc | 7b4ab66f63fbcdef6a7be43b9a1f7f4ca6e8145a08562a71d631b891e5e651b3

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
09-11-2024 03:01

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General

Target

7b4ab66f63fbcdef6a7be43b9a1f7f4ca6e8145a08562a71d631b891e5e651b3.exe
Size

2.1MB
MD5

3c217d03436985a1b3e9c03f442f19f6
SHA1

bcc1959d1d8c76c69a306cf4b319fdeb5e841856
SHA256

7b4ab66f63fbcdef6a7be43b9a1f7f4ca6e8145a08562a71d631b891e5e651b3
SHA512

c9ff189d08497428c4810c35d1ad6a2bd4d5dea2ede58af3756a7dc16f836d46357db85412115ba313c6b169afcca048024ff06f4fa6febe4286ed5eab76e56d
SSDEEP

49152:18zw0z6ppEvDVBQ2aK9oAr1Do8/ncyh0UldDAA9rulXompIgGHiay/:1n0z67E7VO2W4o8PcGtDb9rQoXgla6

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__	7b4ab66f63fbcdef6a7be43b9a1f7f4ca6e8145a08562a71d631b891e5e651b3.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	7b4ab66f63fbcdef6a7be43b9a1f7f4ca6e8145a08562a71d631b891e5e651b3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7b4ab66f63fbcdef6a7be43b9a1f7f4ca6e8145a08562a71d631b891e5e651b3.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-1-5-21-2039016743-699959520-214465309-1000\Software\Wine	7b4ab66f63fbcdef6a7be43b9a1f7f4ca6e8145a08562a71d631b891e5e651b3.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2568	7b4ab66f63fbcdef6a7be43b9a1f7f4ca6e8145a08562a71d631b891e5e651b3.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	7b4ab66f63fbcdef6a7be43b9a1f7f4ca6e8145a08562a71d631b891e5e651b3.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2568	7b4ab66f63fbcdef6a7be43b9a1f7f4ca6e8145a08562a71d631b891e5e651b3.exe

C:\Users\Admin\AppData\Local\Temp\7b4ab66f63fbcdef6a7be43b9a1f7f4ca6e8145a08562a71d631b891e5e651b3.exe
"C:\Users\Admin\AppData\Local\Temp\7b4ab66f63fbcdef6a7be43b9a1f7f4ca6e8145a08562a71d631b891e5e651b3.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:2568

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/2568-0-0x0000000000930000-0x0000000001077000-memory.dmp

Filesize
7.3MB

Download
memory/2568-1-0x0000000076F60000-0x0000000076F62000-memory.dmp

Filesize
8KB

Download
memory/2568-3-0x0000000000930000-0x0000000001077000-memory.dmp

Filesize
7.3MB

Download
memory/2568-2-0x0000000000931000-0x0000000000999000-memory.dmp

Filesize
416KB

Download
memory/2568-5-0x0000000000930000-0x0000000001077000-memory.dmp

Filesize
7.3MB

Download