stealc | 292eda049137573fc8b923ef58da8218eb5cfab29010e459ba6963434fa1cf7c

General

Target

292eda049137573fc8b923ef58da8218eb5cfab29010e459ba6963434fa1cf7c.exe
Size

1.8MB
MD5

f930046acafd7c97c30231b17b5d053a
SHA1

d442f54bf5d1b61457442a2c110da594dc7825ec
SHA256

292eda049137573fc8b923ef58da8218eb5cfab29010e459ba6963434fa1cf7c
SHA512

1f96c0b414b39d20264465274dda554b47c6fc32e32468db30d2d4a37efc60bd50184c7d0afc482218f2f6f5de6678958038e581f5e1afbf9324cff7ea98ce2e
SSDEEP

24576:rq7KQueAo6rwtCqKGMZaT2Llz2/+9xoWiyOi4F14Mp2f20RQm7QQlZ6sZswi38y:GEIobASlz4ZMOt/QQQl7Z

Score

10^/10

stealc brat discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

brat

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__	292eda049137573fc8b923ef58da8218eb5cfab29010e459ba6963434fa1cf7c.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	292eda049137573fc8b923ef58da8218eb5cfab29010e459ba6963434fa1cf7c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	292eda049137573fc8b923ef58da8218eb5cfab29010e459ba6963434fa1cf7c.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-1-5-21-2437139445-1151884604-3026847218-1000\Software\Wine	292eda049137573fc8b923ef58da8218eb5cfab29010e459ba6963434fa1cf7c.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
1788	292eda049137573fc8b923ef58da8218eb5cfab29010e459ba6963434fa1cf7c.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4696	1788	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	292eda049137573fc8b923ef58da8218eb5cfab29010e459ba6963434fa1cf7c.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	292eda049137573fc8b923ef58da8218eb5cfab29010e459ba6963434fa1cf7c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	292eda049137573fc8b923ef58da8218eb5cfab29010e459ba6963434fa1cf7c.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1788	292eda049137573fc8b923ef58da8218eb5cfab29010e459ba6963434fa1cf7c.exe
1788	292eda049137573fc8b923ef58da8218eb5cfab29010e459ba6963434fa1cf7c.exe
1788	292eda049137573fc8b923ef58da8218eb5cfab29010e459ba6963434fa1cf7c.exe
1788	292eda049137573fc8b923ef58da8218eb5cfab29010e459ba6963434fa1cf7c.exe

C:\Users\Admin\AppData\Local\Temp\292eda049137573fc8b923ef58da8218eb5cfab29010e459ba6963434fa1cf7c.exe
"C:\Users\Admin\AppData\Local\Temp\292eda049137573fc8b923ef58da8218eb5cfab29010e459ba6963434fa1cf7c.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:1788
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1788 -s 1500
  2⤵
  - Program crash
  PID:4696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1788 -ip 1788
1⤵
PID:2560

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/1788-0-0x0000000000B10000-0x00000000011C0000-memory.dmp

Filesize
6.7MB

Download
memory/1788-1-0x0000000077574000-0x0000000077576000-memory.dmp

Filesize
8KB

Download
memory/1788-2-0x0000000000B11000-0x0000000000B28000-memory.dmp

Filesize
92KB

Download
memory/1788-3-0x0000000000B10000-0x00000000011C0000-memory.dmp

Filesize
6.7MB

Download
memory/1788-4-0x0000000000B10000-0x00000000011C0000-memory.dmp

Filesize
6.7MB

Download
memory/1788-5-0x0000000000B10000-0x00000000011C0000-memory.dmp

Filesize
6.7MB

Download
memory/1788-6-0x0000000000B10000-0x00000000011C0000-memory.dmp

Filesize
6.7MB

Download
memory/1788-7-0x0000000000B10000-0x00000000011C0000-memory.dmp

Filesize
6.7MB

Download
memory/1788-8-0x0000000000B10000-0x00000000011C0000-memory.dmp

Filesize
6.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads