stealc | 053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2

General

Target

053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2.exe
Size

5.0MB
MD5

a82b9d32414422f485e9ff40e510675f
SHA1

8fbe5d22749ac95163b3e10b268fb6bfc69c7fee
SHA256

053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2
SHA512

5d7c67c2b41d505cea2ceff0b3602e7d23c7b1426a871b7ed308f51a39cd2896b3c82186c267d094e284a9be01b9fc7bba9a42305f1ec783bb9a2c167093cf6d
SSDEEP

49152:IIupF1hZ3bCD872uazGAUMqvF8kqIqcT8zKVP:INhhZL52dbUfF8gqcAzKVP

Score

10^/10

stealc stok discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

C2

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__	053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2.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	053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2.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	053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1748	053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2756	1748	WerFault.exe	29

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	053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor 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\CentralProcessor\0\ProcessorNameString	053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1748	053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2.exe
1748	053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1748 wrote to memory of 2756	1748	053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2.exe	32
PID 1748 wrote to memory of 2756	1748	053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2.exe	32
PID 1748 wrote to memory of 2756	1748	053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2.exe	32
PID 1748 wrote to memory of 2756	1748	053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2.exe	32

C:\Users\Admin\AppData\Local\Temp\053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2.exe
"C:\Users\Admin\AppData\Local\Temp\053fb7455e2fdc96818309f32de65e5a102fd382e83912c836a567fc42d881f2.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
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1748
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1748 -s 928
  2⤵
  - Program crash
  PID:2756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

5

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1748-0-0x0000000000150000-0x000000000064E000-memory.dmp

Filesize
5.0MB

Download
memory/1748-1-0x0000000077C30000-0x0000000077C32000-memory.dmp

Filesize
8KB

Download
memory/1748-2-0x0000000000151000-0x000000000039A000-memory.dmp

Filesize
2.3MB

Download
memory/1748-3-0x0000000000150000-0x000000000064E000-memory.dmp

Filesize
5.0MB

Download
memory/1748-4-0x0000000000150000-0x000000000064E000-memory.dmp

Filesize
5.0MB

Download
memory/1748-5-0x0000000000151000-0x000000000039A000-memory.dmp

Filesize
2.3MB

Download
memory/1748-6-0x0000000000150000-0x000000000064E000-memory.dmp

Filesize
5.0MB

Download
memory/1748-7-0x0000000000150000-0x000000000064E000-memory.dmp

Filesize
5.0MB

Download
memory/1748-8-0x0000000000150000-0x000000000064E000-memory.dmp

Filesize
5.0MB

Download
memory/1748-9-0x0000000000150000-0x000000000064E000-memory.dmp

Filesize
5.0MB

Download
memory/1748-10-0x0000000000150000-0x000000000064E000-memory.dmp

Filesize
5.0MB

Download
memory/1748-11-0x0000000000150000-0x000000000064E000-memory.dmp

Filesize
5.0MB

Download
memory/1748-12-0x0000000000150000-0x000000000064E000-memory.dmp

Filesize
5.0MB

Download
memory/1748-13-0x0000000000151000-0x000000000039A000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads