stealc | 76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c

General

Target

76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c.exe
Size

1.7MB
MD5

1548ce362249981d26fda4ef4cc97386
SHA1

5c15f28cb0a1d4ed19f3b932f0a34c47ff2f6110
SHA256

76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c
SHA512

f6e58f6c9c898964760bf83c7e308bd0553cefa90b21d9d8a980652766c399a118f2d290823e0b8b46cf977cd60d69269a00748c46b7e0aba5f0d23b42883d56
SSDEEP

49152:hbAD+1OXxY/Ddyw1hlP+8uyTgIkJuWENaJ0X5Mu:hbaN4FDVuyTRao

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__	76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c.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	76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c.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-1-5-21-1488793075-819845221-1497111674-1000\Software\Wine	76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c.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
1560	76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1824	1560	WerFault.exe	28

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	76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c.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	76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1560	76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c.exe
1560	76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1560 wrote to memory of 1824	1560	76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c.exe	30
PID 1560 wrote to memory of 1824	1560	76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c.exe	30
PID 1560 wrote to memory of 1824	1560	76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c.exe	30
PID 1560 wrote to memory of 1824	1560	76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c.exe	30

C:\Users\Admin\AppData\Local\Temp\76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c.exe
"C:\Users\Admin\AppData\Local\Temp\76d812adc309bd9fdb8f4eee84ff00bab8b539ffa6b5cc34bd6f6e8345b9955c.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:1560
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1560 -s 928
  2⤵
  - Program crash
  PID:1824

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/1560-0-0x0000000000AA0000-0x000000000112D000-memory.dmp

Filesize
6.6MB

Download
memory/1560-1-0x0000000077440000-0x0000000077442000-memory.dmp

Filesize
8KB

Download
memory/1560-2-0x0000000000AA1000-0x0000000000AB8000-memory.dmp

Filesize
92KB

Download
memory/1560-3-0x0000000000AA0000-0x000000000112D000-memory.dmp

Filesize
6.6MB

Download
memory/1560-4-0x0000000000AA0000-0x000000000112D000-memory.dmp

Filesize
6.6MB

Download
memory/1560-5-0x0000000000AA0000-0x000000000112D000-memory.dmp

Filesize
6.6MB

Download
memory/1560-6-0x0000000000AA0000-0x000000000112D000-memory.dmp

Filesize
6.6MB

Download
memory/1560-7-0x0000000000AA0000-0x000000000112D000-memory.dmp

Filesize
6.6MB

Download
memory/1560-8-0x0000000000AA0000-0x000000000112D000-memory.dmp

Filesize
6.6MB

Download
memory/1560-9-0x0000000000AA0000-0x000000000112D000-memory.dmp

Filesize
6.6MB

Download
memory/1560-10-0x0000000000AA0000-0x000000000112D000-memory.dmp

Filesize
6.6MB

Download
memory/1560-11-0x0000000000AA0000-0x000000000112D000-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