stealc | baa3bfae2d773f63567b19df3e0e5be0c5a3fb8136172a705e2cae4feeff350f

General

Target

baa3bfae2d773f63567b19df3e0e5be0c5a3fb8136172a705e2cae4feeff350f.exe
Size

2.7MB
MD5

5ccb6492818d2d468967383a5429809a
SHA1

0a056305205586318b18b8511e045ba7d1fcfd76
SHA256

baa3bfae2d773f63567b19df3e0e5be0c5a3fb8136172a705e2cae4feeff350f
SHA512

1ce34ced9f953bf322123b9d3c204f343cfb09eb0707126d3f6ee9efd54702714867b9864fbfe695030736a6e35294b819f2603c67caf8044eeaf96c14f369b4
SSDEEP

49152:H9BznXMsnbsERi0hExzLc7xblvRY4qhJblED6RcVQJ0FCvex:H9Bz8sASi0hEidFzM9BRcVqex

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__	baa3bfae2d773f63567b19df3e0e5be0c5a3fb8136172a705e2cae4feeff350f.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	baa3bfae2d773f63567b19df3e0e5be0c5a3fb8136172a705e2cae4feeff350f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	baa3bfae2d773f63567b19df3e0e5be0c5a3fb8136172a705e2cae4feeff350f.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	baa3bfae2d773f63567b19df3e0e5be0c5a3fb8136172a705e2cae4feeff350f.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
1188	baa3bfae2d773f63567b19df3e0e5be0c5a3fb8136172a705e2cae4feeff350f.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3048	1188	WerFault.exe	82

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	baa3bfae2d773f63567b19df3e0e5be0c5a3fb8136172a705e2cae4feeff350f.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	baa3bfae2d773f63567b19df3e0e5be0c5a3fb8136172a705e2cae4feeff350f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	baa3bfae2d773f63567b19df3e0e5be0c5a3fb8136172a705e2cae4feeff350f.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1188	baa3bfae2d773f63567b19df3e0e5be0c5a3fb8136172a705e2cae4feeff350f.exe
1188	baa3bfae2d773f63567b19df3e0e5be0c5a3fb8136172a705e2cae4feeff350f.exe
1188	baa3bfae2d773f63567b19df3e0e5be0c5a3fb8136172a705e2cae4feeff350f.exe
1188	baa3bfae2d773f63567b19df3e0e5be0c5a3fb8136172a705e2cae4feeff350f.exe

C:\Users\Admin\AppData\Local\Temp\baa3bfae2d773f63567b19df3e0e5be0c5a3fb8136172a705e2cae4feeff350f.exe
"C:\Users\Admin\AppData\Local\Temp\baa3bfae2d773f63567b19df3e0e5be0c5a3fb8136172a705e2cae4feeff350f.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
PID:1188
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 1476
  2⤵
  - Program crash
  PID:3048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1188 -ip 1188
1⤵
PID:1436

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/1188-0-0x00000000009C0000-0x0000000000EB3000-memory.dmp

Filesize
4.9MB

Download
memory/1188-1-0x00000000776F4000-0x00000000776F6000-memory.dmp

Filesize
8KB

Download
memory/1188-2-0x00000000009C1000-0x00000000009D8000-memory.dmp

Filesize
92KB

Download
memory/1188-3-0x00000000009C0000-0x0000000000EB3000-memory.dmp

Filesize
4.9MB

Download
memory/1188-4-0x00000000009C0000-0x0000000000EB3000-memory.dmp

Filesize
4.9MB

Download
memory/1188-5-0x00000000009C0000-0x0000000000EB3000-memory.dmp

Filesize
4.9MB

Download
memory/1188-6-0x00000000009C0000-0x0000000000EB3000-memory.dmp

Filesize
4.9MB

Download
memory/1188-7-0x00000000009C0000-0x0000000000EB3000-memory.dmp

Filesize
4.9MB

Download
memory/1188-8-0x00000000009C0000-0x0000000000EB3000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads