stealc | 047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8

General

Target

047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8.exe
Size

5.0MB
MD5

1451b57ba4eb5f5e50379fb8e3ef21c4
SHA1

438b6c57df4c4e04f986c73bf752978d49df9d0d
SHA256

047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8
SHA512

a84d04261973956b64b8bfae376f46491fcf1ad4fd8a9681bed53be7e40f5f2f577f52cd7ffb93a31a62d35c89db2b9c529e482ad7407554d869943665647afd
SSDEEP

49152:a4ebbdus0UWct6hW8hk0O2WgOm3dtDTYXPvduHVWbdt:a4cdus0UWct6hW8hnO2W+ddTYfvd4oH

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__	047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8.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	047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8.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	047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8.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
2340	047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2412	2340	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	047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8.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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2340	047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8.exe
2340	047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 2412	2340	047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8.exe	32
PID 2340 wrote to memory of 2412	2340	047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8.exe	32
PID 2340 wrote to memory of 2412	2340	047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8.exe	32
PID 2340 wrote to memory of 2412	2340	047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8.exe	32

C:\Users\Admin\AppData\Local\Temp\047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8.exe
"C:\Users\Admin\AppData\Local\Temp\047faf10f893cd97e831f436351a0dda5816093537f8a1cddd9a3e3334fea4a8.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:2340
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2340 -s 948
  2⤵
  - Program crash
  PID:2412

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2340-0-0x00000000009E0000-0x0000000000ED9000-memory.dmp

Filesize
5.0MB

Download
memory/2340-1-0x0000000076EE0000-0x0000000076EE2000-memory.dmp

Filesize
8KB

Download
memory/2340-2-0x00000000009E1000-0x0000000000C2A000-memory.dmp

Filesize
2.3MB

Download
memory/2340-3-0x00000000009E0000-0x0000000000ED9000-memory.dmp

Filesize
5.0MB

Download
memory/2340-4-0x00000000009E0000-0x0000000000ED9000-memory.dmp

Filesize
5.0MB

Download
memory/2340-5-0x00000000009E1000-0x0000000000C2A000-memory.dmp

Filesize
2.3MB

Download
memory/2340-6-0x00000000009E0000-0x0000000000ED9000-memory.dmp

Filesize
5.0MB

Download
memory/2340-7-0x00000000009E0000-0x0000000000ED9000-memory.dmp

Filesize
5.0MB

Download
memory/2340-8-0x00000000009E0000-0x0000000000ED9000-memory.dmp

Filesize
5.0MB

Download
memory/2340-9-0x00000000009E0000-0x0000000000ED9000-memory.dmp

Filesize
5.0MB

Download
memory/2340-10-0x00000000009E0000-0x0000000000ED9000-memory.dmp

Filesize
5.0MB

Download
memory/2340-11-0x00000000009E0000-0x0000000000ED9000-memory.dmp

Filesize
5.0MB

Download
memory/2340-12-0x00000000009E0000-0x0000000000ED9000-memory.dmp

Filesize
5.0MB

Download
memory/2340-13-0x00000000009E1000-0x0000000000C2A000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads