stealc | 6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88

General

Target

6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88.exe
Size

1.7MB
MD5

d844a577074ebb26b23e941d1de86dab
SHA1

78e22e8bb0370aaccaf82555ef6e1fd2022e205b
SHA256

6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88
SHA512

ddca787396b66dd665a421eed1748d585dcbdb5e4f3e0e02c6f9f3cdfcf8a593b35cd6494f5ec159245fecf7232bb4511fb104dc7b442c1b8ea5dbbfae3add32
SSDEEP

49152:02OFh1znfLvcTnQQYbS92INvELfFPfJmxQOk:02gznjvc8ZS8ccZkq

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__	6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88.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	6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88.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	6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88.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
2056	6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2868	2056	WerFault.exe	29

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	6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88.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	6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2056	6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88.exe
2056	6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2056 wrote to memory of 2868	2056	6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88.exe	31
PID 2056 wrote to memory of 2868	2056	6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88.exe	31
PID 2056 wrote to memory of 2868	2056	6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88.exe	31
PID 2056 wrote to memory of 2868	2056	6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88.exe	31

C:\Users\Admin\AppData\Local\Temp\6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88.exe
"C:\Users\Admin\AppData\Local\Temp\6ec802a2b25753c36b3c840b7a6839da64ce66744102c124d9c482ec8ef30d88.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:2056
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2056 -s 924
  2⤵
  - Program crash
  PID:2868

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/2056-0-0x0000000000A60000-0x00000000010F0000-memory.dmp

Filesize
6.6MB

Download
memory/2056-1-0x00000000778B0000-0x00000000778B2000-memory.dmp

Filesize
8KB

Download
memory/2056-2-0x0000000000A61000-0x0000000000A78000-memory.dmp

Filesize
92KB

Download
memory/2056-3-0x0000000000A60000-0x00000000010F0000-memory.dmp

Filesize
6.6MB

Download
memory/2056-4-0x0000000000A60000-0x00000000010F0000-memory.dmp

Filesize
6.6MB

Download
memory/2056-5-0x0000000000A60000-0x00000000010F0000-memory.dmp

Filesize
6.6MB

Download
memory/2056-6-0x0000000000A60000-0x00000000010F0000-memory.dmp

Filesize
6.6MB

Download
memory/2056-7-0x0000000000A60000-0x00000000010F0000-memory.dmp

Filesize
6.6MB

Download
memory/2056-8-0x0000000000A60000-0x00000000010F0000-memory.dmp

Filesize
6.6MB

Download
memory/2056-9-0x0000000000A60000-0x00000000010F0000-memory.dmp

Filesize
6.6MB

Download
memory/2056-10-0x0000000000A60000-0x00000000010F0000-memory.dmp

Filesize
6.6MB

Download
memory/2056-11-0x0000000000A60000-0x00000000010F0000-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