stealc | 7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095

General

Target

7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095.exe
Size

1.7MB
MD5

c0a4fb0adfad5a941e25e52a4f70e935
SHA1

8f8e88886f16454857d0e0402820828586395711
SHA256

7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095
SHA512

ce29adae2d3985c3ae6dca30c3e9384caee4998ea1bae455c6c2c60e2ed944e2631bb5dd170432977d1efb80dc8bfba88efd5e8d7aec71d61023a8edc6fa6a13
SSDEEP

49152:s4/SmcEkRnVSM1R/0UaaK1GGqwcDa6aWZ68x6iN2F:siSpriM1R8JBTplQD

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__	7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095.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	7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095.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
3004	7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1660	3004	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	7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095.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	7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3004	7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095.exe
3004	7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3004 wrote to memory of 1660	3004	7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095.exe	30
PID 3004 wrote to memory of 1660	3004	7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095.exe	30
PID 3004 wrote to memory of 1660	3004	7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095.exe	30
PID 3004 wrote to memory of 1660	3004	7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095.exe	30

C:\Users\Admin\AppData\Local\Temp\7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095.exe
"C:\Users\Admin\AppData\Local\Temp\7cd1fe3752969067aaf59e54b7350e6db6218fef6410e3083cdbc6050cbce095.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:3004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3004 -s 432
  2⤵
  - Program crash
  PID:1660

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/3004-0-0x0000000000D40000-0x00000000013C2000-memory.dmp

Filesize
6.5MB

Download
memory/3004-1-0x0000000077D00000-0x0000000077D02000-memory.dmp

Filesize
8KB

Download
memory/3004-2-0x0000000000D41000-0x0000000000D58000-memory.dmp

Filesize
92KB

Download
memory/3004-3-0x0000000000D40000-0x00000000013C2000-memory.dmp

Filesize
6.5MB

Download
memory/3004-4-0x0000000000D40000-0x00000000013C2000-memory.dmp

Filesize
6.5MB

Download
memory/3004-5-0x0000000000D40000-0x00000000013C2000-memory.dmp

Filesize
6.5MB

Download
memory/3004-7-0x0000000000D40000-0x00000000013C2000-memory.dmp

Filesize
6.5MB

Download
memory/3004-8-0x0000000000D40000-0x00000000013C2000-memory.dmp

Filesize
6.5MB

Download
memory/3004-9-0x0000000000D40000-0x00000000013C2000-memory.dmp

Filesize
6.5MB

Download
memory/3004-10-0x0000000000D40000-0x00000000013C2000-memory.dmp

Filesize
6.5MB

Download
memory/3004-11-0x0000000000D40000-0x00000000013C2000-memory.dmp

Filesize
6.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads