stealc | bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a

General

Target

bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe
Size

1.7MB
MD5

c990229b34f3b2eee58af2be505866fc
SHA1

573b222bddb7bce861b0e3eff9405a5017418a72
SHA256

bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a
SHA512

f17c98123fda0ce5839c54ae9355fdd8931a3084acf6c0238b9b918bf670df6c19f246bd6c59e81c5d75368507ca3db7d6658f424c27a5bc1ab2e9b476509352
SSDEEP

49152:v6PQ+uWl+n01VWvlNW9ekXVgKJrzyTZwHdpes0:iTuWs01VQl8R6+v

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__	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.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	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Wine	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.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
2608	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1780	2608	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	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.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	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2608	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe
2608	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2608 wrote to memory of 1780	2608	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe	31
PID 2608 wrote to memory of 1780	2608	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe	31
PID 2608 wrote to memory of 1780	2608	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe	31
PID 2608 wrote to memory of 1780	2608	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe	31

C:\Users\Admin\AppData\Local\Temp\bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe
"C:\Users\Admin\AppData\Local\Temp\bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.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:2608
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2608 -s 928
  2⤵
  - Program crash
  PID:1780

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/2608-0-0x0000000000180000-0x00000000007FB000-memory.dmp

Filesize
6.5MB

Download
memory/2608-1-0x00000000771B0000-0x00000000771B2000-memory.dmp

Filesize
8KB

Download
memory/2608-2-0x0000000000181000-0x0000000000198000-memory.dmp

Filesize
92KB

Download
memory/2608-3-0x0000000000180000-0x00000000007FB000-memory.dmp

Filesize
6.5MB

Download
memory/2608-4-0x0000000000180000-0x00000000007FB000-memory.dmp

Filesize
6.5MB

Download
memory/2608-5-0x0000000000180000-0x00000000007FB000-memory.dmp

Filesize
6.5MB

Download
memory/2608-6-0x0000000000180000-0x00000000007FB000-memory.dmp

Filesize
6.5MB

Download
memory/2608-7-0x0000000000180000-0x00000000007FB000-memory.dmp

Filesize
6.5MB

Download
memory/2608-8-0x0000000000180000-0x00000000007FB000-memory.dmp

Filesize
6.5MB

Download
memory/2608-9-0x0000000000180000-0x00000000007FB000-memory.dmp

Filesize
6.5MB

Download
memory/2608-10-0x0000000000180000-0x00000000007FB000-memory.dmp

Filesize
6.5MB

Download
memory/2608-11-0x0000000000180000-0x00000000007FB000-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