stealc | 96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f

General

Target

96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f.exe
Size

1.7MB
MD5

c8dcf419071d999c0f3e7b7a456e987d
SHA1

e8fe639d299c45312c1b4d8adc6b27638ffda3bf
SHA256

96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f
SHA512

b2f55a0663449bbf87a83666deb405e2277c737e4df0ecbb2a79e0f2fa3ad1e434e5351d306413a0cbb78f3f0be9e8acde64615d3aebbdf2d1ef93af1ace7f1e
SSDEEP

24576:srXT9VNk+gdhZZm96n6Q3RDyEvA862yHq32kK6KsIL6ZPTpXa+oQeMhhiedGxvhQ:QZCjZYuyE5n32kKWbZLpjoQnUvVKuOr

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__	96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f.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\VideoBiosVersion	96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Wine	96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f.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
1344	96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1416	1344	WerFault.exe	27

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	96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f.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	96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1344	96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f.exe
1344	96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1344 wrote to memory of 1416	1344	96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f.exe	31
PID 1344 wrote to memory of 1416	1344	96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f.exe	31
PID 1344 wrote to memory of 1416	1344	96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f.exe	31
PID 1344 wrote to memory of 1416	1344	96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f.exe	31

C:\Users\Admin\AppData\Local\Temp\96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f.exe
"C:\Users\Admin\AppData\Local\Temp\96db6bccdb9c36ecf8f50eef6139bb960b5bc2b4385d1bd6c3ce6e27b633a25f.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:1344
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1344 -s 924
  2⤵
  - Program crash
  PID:1416

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/1344-0-0x0000000000FE0000-0x0000000001658000-memory.dmp

Filesize
6.5MB

Download
memory/1344-1-0x0000000077E80000-0x0000000077E82000-memory.dmp

Filesize
8KB

Download
memory/1344-2-0x0000000000FE1000-0x0000000000FF8000-memory.dmp

Filesize
92KB

Download
memory/1344-3-0x0000000000FE0000-0x0000000001658000-memory.dmp

Filesize
6.5MB

Download
memory/1344-4-0x0000000000FE0000-0x0000000001658000-memory.dmp

Filesize
6.5MB

Download
memory/1344-5-0x0000000000FE0000-0x0000000001658000-memory.dmp

Filesize
6.5MB

Download
memory/1344-6-0x0000000000FE0000-0x0000000001658000-memory.dmp

Filesize
6.5MB

Download
memory/1344-7-0x0000000000FE0000-0x0000000001658000-memory.dmp

Filesize
6.5MB

Download
memory/1344-8-0x0000000000FE0000-0x0000000001658000-memory.dmp

Filesize
6.5MB

Download
memory/1344-9-0x0000000000FE0000-0x0000000001658000-memory.dmp

Filesize
6.5MB

Download
memory/1344-10-0x0000000000FE0000-0x0000000001658000-memory.dmp

Filesize
6.5MB

Download
memory/1344-12-0x0000000000FE0000-0x0000000001658000-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