stealc | 22a7b5fc61cf54485bd374a221386b1c2675f7eb4b1428677ff86b3add14238e

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-12-2024 12:39

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General

Target

22a7b5fc61cf54485bd374a221386b1c2675f7eb4b1428677ff86b3add14238e.exe
Size

1.7MB
MD5

9083cdf00ff3295432676d6ee4c6c9f4
SHA1

2f83025aaf303478fb07cf9fd9630ca3874e6163
SHA256

22a7b5fc61cf54485bd374a221386b1c2675f7eb4b1428677ff86b3add14238e
SHA512

b1a3bd15d30dc60e6aa3bd027e39be463a7f026815f66b84a44bc93cb1b89e42211b5352b5cc44e2e46c7fa9f43f6d888c9678fa6cbe7679e2d8f1be35d8d942
SSDEEP

49152:i5imbU8QytcdlG8cj2//kmwquf+uxXW+28mO:UQuGWjoM3r6

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__	22a7b5fc61cf54485bd374a221386b1c2675f7eb4b1428677ff86b3add14238e.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	22a7b5fc61cf54485bd374a221386b1c2675f7eb4b1428677ff86b3add14238e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	22a7b5fc61cf54485bd374a221386b1c2675f7eb4b1428677ff86b3add14238e.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-1-5-21-1488793075-819845221-1497111674-1000\Software\Wine	22a7b5fc61cf54485bd374a221386b1c2675f7eb4b1428677ff86b3add14238e.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2176	22a7b5fc61cf54485bd374a221386b1c2675f7eb4b1428677ff86b3add14238e.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	22a7b5fc61cf54485bd374a221386b1c2675f7eb4b1428677ff86b3add14238e.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2176	22a7b5fc61cf54485bd374a221386b1c2675f7eb4b1428677ff86b3add14238e.exe

C:\Users\Admin\AppData\Local\Temp\22a7b5fc61cf54485bd374a221386b1c2675f7eb4b1428677ff86b3add14238e.exe
"C:\Users\Admin\AppData\Local\Temp\22a7b5fc61cf54485bd374a221386b1c2675f7eb4b1428677ff86b3add14238e.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:2176

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/2176-0-0x0000000000E80000-0x0000000001515000-memory.dmp

Filesize
6.6MB

Download
memory/2176-1-0x00000000777D0000-0x00000000777D2000-memory.dmp

Filesize
8KB

Download
memory/2176-2-0x0000000000E81000-0x0000000000E98000-memory.dmp

Filesize
92KB

Download
memory/2176-3-0x0000000000E80000-0x0000000001515000-memory.dmp

Filesize
6.6MB

Download
memory/2176-4-0x0000000000E80000-0x0000000001515000-memory.dmp

Filesize
6.6MB

Download