stealc | 8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61

General

Target

8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61.exe
Size

1.7MB
MD5

253d390f37e89a62253da0d299c56ee6
SHA1

de4c42e88ae58261296f015cab9b614272601218
SHA256

8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61
SHA512

8fb9959305ddea682555650a62df5d458b377ed3aac96dc8b07f2a1dc7fd2c6b882ab93753908cab5d19f291a477323d5bd7a8eb93b1fba87a363f331778338e
SSDEEP

49152:4LtpSCeQ3twsi63UJX2bYG5uUxfdRE0Vx2:gKKK63UJGX5uUPRj

Score

10^/10

stealc brat defense_evasion discovery 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

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61.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	8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61.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.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Wine	8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61.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
2728	8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2488	2728	WerFault.exe	30

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	8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61.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	8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2728	8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61.exe
2728	8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2728 wrote to memory of 2488	2728	8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61.exe	33
PID 2728 wrote to memory of 2488	2728	8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61.exe	33
PID 2728 wrote to memory of 2488	2728	8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61.exe	33
PID 2728 wrote to memory of 2488	2728	8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61.exe	33

C:\Users\Admin\AppData\Local\Temp\8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61.exe
"C:\Users\Admin\AppData\Local\Temp\8019c360ae5efbb430b054821191847452cd2b17868401b126d39171a0b9ec61.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:2728
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2728 -s 932
  2⤵
  - Program crash
  PID:2488

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/2728-0-0x0000000000130000-0x00000000007BE000-memory.dmp

Filesize
6.6MB

Download
memory/2728-1-0x0000000076F30000-0x0000000076F32000-memory.dmp

Filesize
8KB

Download
memory/2728-2-0x0000000000131000-0x0000000000148000-memory.dmp

Filesize
92KB

Download
memory/2728-3-0x0000000000130000-0x00000000007BE000-memory.dmp

Filesize
6.6MB

Download
memory/2728-4-0x0000000000130000-0x00000000007BE000-memory.dmp

Filesize
6.6MB

Download
memory/2728-5-0x0000000000130000-0x00000000007BE000-memory.dmp

Filesize
6.6MB

Download
memory/2728-6-0x0000000000130000-0x00000000007BE000-memory.dmp

Filesize
6.6MB

Download
memory/2728-7-0x0000000000130000-0x00000000007BE000-memory.dmp

Filesize
6.6MB

Download
memory/2728-8-0x0000000000130000-0x00000000007BE000-memory.dmp

Filesize
6.6MB

Download
memory/2728-9-0x0000000000130000-0x00000000007BE000-memory.dmp

Filesize
6.6MB

Download
memory/2728-10-0x0000000000130000-0x00000000007BE000-memory.dmp

Filesize
6.6MB

Download
memory/2728-11-0x0000000000130000-0x00000000007BE000-memory.dmp

Filesize
6.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads