stealc | 1a5fc8cfe67069d01a5bcc44a9e8993e8ce35854537789c54b5c0a915a935895

Analysis

max time kernel
134s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-11-2024 02:20

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General

Target

1a5fc8cfe67069d01a5bcc44a9e8993e8ce35854537789c54b5c0a915a935895.exe
Size

2.0MB
MD5

4b171016fe6632198cd156e8ea1d9f7b
SHA1

7669b78466995739bfd99471ac3c50cd90aec87b
SHA256

1a5fc8cfe67069d01a5bcc44a9e8993e8ce35854537789c54b5c0a915a935895
SHA512

6b3e6119925d2ef46d82bc3560cfe63dbff484904d11964590ec6c4485d6a2757c1dfcc080e4a8aaecfa290f1badc42c0f6f2c8422a75ee5a64f059cbacdae93
SSDEEP

49152:ay8nO+h453xfzTHv/KLL0zCN+eQL9KWXRLVsTOwrZXFQ9ulGW:n+h4NxffHaUe8zhKiRyT9l+96GW

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__	1a5fc8cfe67069d01a5bcc44a9e8993e8ce35854537789c54b5c0a915a935895.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	1a5fc8cfe67069d01a5bcc44a9e8993e8ce35854537789c54b5c0a915a935895.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1a5fc8cfe67069d01a5bcc44a9e8993e8ce35854537789c54b5c0a915a935895.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-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	1a5fc8cfe67069d01a5bcc44a9e8993e8ce35854537789c54b5c0a915a935895.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1844	1a5fc8cfe67069d01a5bcc44a9e8993e8ce35854537789c54b5c0a915a935895.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	1a5fc8cfe67069d01a5bcc44a9e8993e8ce35854537789c54b5c0a915a935895.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1844	1a5fc8cfe67069d01a5bcc44a9e8993e8ce35854537789c54b5c0a915a935895.exe
1844	1a5fc8cfe67069d01a5bcc44a9e8993e8ce35854537789c54b5c0a915a935895.exe

C:\Users\Admin\AppData\Local\Temp\1a5fc8cfe67069d01a5bcc44a9e8993e8ce35854537789c54b5c0a915a935895.exe
"C:\Users\Admin\AppData\Local\Temp\1a5fc8cfe67069d01a5bcc44a9e8993e8ce35854537789c54b5c0a915a935895.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:1844

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/1844-0-0x0000000000BE0000-0x0000000001315000-memory.dmp

Filesize
7.2MB

Download
memory/1844-1-0x0000000077644000-0x0000000077646000-memory.dmp

Filesize
8KB

Download
memory/1844-2-0x0000000000BE1000-0x0000000000C49000-memory.dmp

Filesize
416KB

Download
memory/1844-3-0x0000000000BE0000-0x0000000001315000-memory.dmp

Filesize
7.2MB

Download
memory/1844-5-0x0000000000BE0000-0x0000000001315000-memory.dmp

Filesize
7.2MB

Download