stealc | 7b9ee562e367ff7f578b1454eb1a546ae832e93c9e17bd2cc5733366936aafa8

General

Target

7b9ee562e367ff7f578b1454eb1a546ae832e93c9e17bd2cc5733366936aafa8.exe
Size

1.7MB
MD5

feac2448deb7e632e5bcf94d02b40c6c
SHA1

5e608482b9e67b6724daea2d12aac702113bdeae
SHA256

7b9ee562e367ff7f578b1454eb1a546ae832e93c9e17bd2cc5733366936aafa8
SHA512

23ec9e5cb9f97e4078c75e10abea4d7a6254f14f5391cdbc8c112ddf2bb2db6e4e99ef5096b6c68ad0d3d5d7659a03d094ce26dd6e5f00e4f4bd3b04c6d2f82a
SSDEEP

49152:/oT2tslxfK1iIVawlZtAtsKF4mq+hAIJCqp3:/SisXK1i4aUM2KF4mhA+C6

Score

10^/10

stealc brat discovery evasion 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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	7b9ee562e367ff7f578b1454eb1a546ae832e93c9e17bd2cc5733366936aafa8.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	7b9ee562e367ff7f578b1454eb1a546ae832e93c9e17bd2cc5733366936aafa8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7b9ee562e367ff7f578b1454eb1a546ae832e93c9e17bd2cc5733366936aafa8.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.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	7b9ee562e367ff7f578b1454eb1a546ae832e93c9e17bd2cc5733366936aafa8.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
5084	7b9ee562e367ff7f578b1454eb1a546ae832e93c9e17bd2cc5733366936aafa8.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4960	5084	WerFault.exe	81

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	7b9ee562e367ff7f578b1454eb1a546ae832e93c9e17bd2cc5733366936aafa8.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	7b9ee562e367ff7f578b1454eb1a546ae832e93c9e17bd2cc5733366936aafa8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	7b9ee562e367ff7f578b1454eb1a546ae832e93c9e17bd2cc5733366936aafa8.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5084	7b9ee562e367ff7f578b1454eb1a546ae832e93c9e17bd2cc5733366936aafa8.exe
5084	7b9ee562e367ff7f578b1454eb1a546ae832e93c9e17bd2cc5733366936aafa8.exe
5084	7b9ee562e367ff7f578b1454eb1a546ae832e93c9e17bd2cc5733366936aafa8.exe
5084	7b9ee562e367ff7f578b1454eb1a546ae832e93c9e17bd2cc5733366936aafa8.exe

C:\Users\Admin\AppData\Local\Temp\7b9ee562e367ff7f578b1454eb1a546ae832e93c9e17bd2cc5733366936aafa8.exe
"C:\Users\Admin\AppData\Local\Temp\7b9ee562e367ff7f578b1454eb1a546ae832e93c9e17bd2cc5733366936aafa8.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
PID:5084
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5084 -s 1480
  2⤵
  - Program crash
  PID:4960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 180 -p 5084 -ip 5084
1⤵
PID:2004

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/5084-0-0x0000000000B80000-0x0000000001200000-memory.dmp

Filesize
6.5MB

Download
memory/5084-1-0x0000000077D84000-0x0000000077D86000-memory.dmp

Filesize
8KB

Download
memory/5084-2-0x0000000000B81000-0x0000000000B98000-memory.dmp

Filesize
92KB

Download
memory/5084-3-0x0000000000B80000-0x0000000001200000-memory.dmp

Filesize
6.5MB

Download
memory/5084-4-0x0000000000B80000-0x0000000001200000-memory.dmp

Filesize
6.5MB

Download
memory/5084-5-0x0000000000B80000-0x0000000001200000-memory.dmp

Filesize
6.5MB

Download
memory/5084-6-0x0000000000B80000-0x0000000001200000-memory.dmp

Filesize
6.5MB

Download
memory/5084-7-0x0000000000B80000-0x0000000001200000-memory.dmp

Filesize
6.5MB

Download
memory/5084-8-0x0000000000B80000-0x0000000001200000-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