stealc | ad3b0cdf3edd2264fc40e1470537c7a6255077c7f2f0611cede7b66fb92e23cc

General

Target

ad3b0cdf3edd2264fc40e1470537c7a6255077c7f2f0611cede7b66fb92e23ccN.exe
Size

1.7MB
MD5

dab07ff32fc73f8c6baf669590650bc0
SHA1

41ef8db60d427ad89ea1399454ffc968562e6204
SHA256

ad3b0cdf3edd2264fc40e1470537c7a6255077c7f2f0611cede7b66fb92e23cc
SHA512

26718e7ae690c0c403c7dda62676fc89c4c714c3b1fb2fdc71f1b272500ebb27e6f468b1a27c9d8131cb25742594a1f682bf86e231f08f927f2da601f5317cb2
SSDEEP

24576:T9qIX5BrT6joVQjxCt7GzRiigfJI2hz+exIs7mm331/0+WeQbePXljEKmdocwCtq:0IjSmMf2JIy+vbmV/8bePVjEKm75

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__	ad3b0cdf3edd2264fc40e1470537c7a6255077c7f2f0611cede7b66fb92e23ccN.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	ad3b0cdf3edd2264fc40e1470537c7a6255077c7f2f0611cede7b66fb92e23ccN.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ad3b0cdf3edd2264fc40e1470537c7a6255077c7f2f0611cede7b66fb92e23ccN.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-1-5-21-3227495264-2217614367-4027411560-1000\Software\Wine	ad3b0cdf3edd2264fc40e1470537c7a6255077c7f2f0611cede7b66fb92e23ccN.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
2412	ad3b0cdf3edd2264fc40e1470537c7a6255077c7f2f0611cede7b66fb92e23ccN.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2460	2412	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	ad3b0cdf3edd2264fc40e1470537c7a6255077c7f2f0611cede7b66fb92e23ccN.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	ad3b0cdf3edd2264fc40e1470537c7a6255077c7f2f0611cede7b66fb92e23ccN.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ad3b0cdf3edd2264fc40e1470537c7a6255077c7f2f0611cede7b66fb92e23ccN.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2412	ad3b0cdf3edd2264fc40e1470537c7a6255077c7f2f0611cede7b66fb92e23ccN.exe
2412	ad3b0cdf3edd2264fc40e1470537c7a6255077c7f2f0611cede7b66fb92e23ccN.exe
2412	ad3b0cdf3edd2264fc40e1470537c7a6255077c7f2f0611cede7b66fb92e23ccN.exe
2412	ad3b0cdf3edd2264fc40e1470537c7a6255077c7f2f0611cede7b66fb92e23ccN.exe

C:\Users\Admin\AppData\Local\Temp\ad3b0cdf3edd2264fc40e1470537c7a6255077c7f2f0611cede7b66fb92e23ccN.exe
"C:\Users\Admin\AppData\Local\Temp\ad3b0cdf3edd2264fc40e1470537c7a6255077c7f2f0611cede7b66fb92e23ccN.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:2412
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2412 -s 1464
  2⤵
  - Program crash
  PID:2460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2412 -ip 2412
1⤵
PID:968

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/2412-0-0x00000000003B0000-0x0000000000A39000-memory.dmp

Filesize
6.5MB

Download
memory/2412-1-0x00000000777A4000-0x00000000777A6000-memory.dmp

Filesize
8KB

Download
memory/2412-2-0x00000000003B1000-0x00000000003C8000-memory.dmp

Filesize
92KB

Download
memory/2412-3-0x00000000003B0000-0x0000000000A39000-memory.dmp

Filesize
6.5MB

Download
memory/2412-4-0x00000000003B0000-0x0000000000A39000-memory.dmp

Filesize
6.5MB

Download
memory/2412-5-0x00000000003B0000-0x0000000000A39000-memory.dmp

Filesize
6.5MB

Download
memory/2412-6-0x00000000003B0000-0x0000000000A39000-memory.dmp

Filesize
6.5MB

Download
memory/2412-7-0x00000000003B0000-0x0000000000A39000-memory.dmp

Filesize
6.5MB

Download
memory/2412-8-0x00000000003B0000-0x0000000000A39000-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