stealc | a5e74790a2f881b391466e31bdd8583789942d97e9939df01a07b83d27758a79

Analysis

max time kernel
149s
max time network
151s
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 03:34

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General

Target

a5e74790a2f881b391466e31bdd8583789942d97e9939df01a07b83d27758a79.exe
Size

2.0MB
MD5

567ef6e233816e5b5ad0a0e4bd771888
SHA1

ddb9c94b7fae577681431db53531cc9740223664
SHA256

a5e74790a2f881b391466e31bdd8583789942d97e9939df01a07b83d27758a79
SHA512

69cbcf4983ab0271d1c31720c8050e98328259a46004477905e897e8fc73f64a61599934bb74ec3f0daa9d274faef95ab91c5751f3ec872d8d14e12ec06075db
SSDEEP

24576:lSOp8uRnsIi91Q7Qb58UorU7QdCilhZ05EVBUAASGbxL4ytFMWPKY+8NbcoIQT0d:bdsXx8U/EzZ02BUtXxL4ytFt7HTze6

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__	a5e74790a2f881b391466e31bdd8583789942d97e9939df01a07b83d27758a79.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	a5e74790a2f881b391466e31bdd8583789942d97e9939df01a07b83d27758a79.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	a5e74790a2f881b391466e31bdd8583789942d97e9939df01a07b83d27758a79.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-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	a5e74790a2f881b391466e31bdd8583789942d97e9939df01a07b83d27758a79.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1488	a5e74790a2f881b391466e31bdd8583789942d97e9939df01a07b83d27758a79.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	a5e74790a2f881b391466e31bdd8583789942d97e9939df01a07b83d27758a79.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1488	a5e74790a2f881b391466e31bdd8583789942d97e9939df01a07b83d27758a79.exe
1488	a5e74790a2f881b391466e31bdd8583789942d97e9939df01a07b83d27758a79.exe

C:\Users\Admin\AppData\Local\Temp\a5e74790a2f881b391466e31bdd8583789942d97e9939df01a07b83d27758a79.exe
"C:\Users\Admin\AppData\Local\Temp\a5e74790a2f881b391466e31bdd8583789942d97e9939df01a07b83d27758a79.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:1488

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/1488-0-0x0000000000200000-0x000000000090E000-memory.dmp

Filesize
7.1MB

Download
memory/1488-1-0x00000000774D4000-0x00000000774D6000-memory.dmp

Filesize
8KB

Download
memory/1488-2-0x0000000000201000-0x0000000000269000-memory.dmp

Filesize
416KB

Download
memory/1488-3-0x0000000000200000-0x000000000090E000-memory.dmp

Filesize
7.1MB

Download
memory/1488-5-0x0000000000200000-0x000000000090E000-memory.dmp

Filesize
7.1MB

Download