stealc | d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1

General

Target

d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1.exe
Size

1.7MB
MD5

fab79f8cbb940bd1ddab6357715336c4
SHA1

b7c89e0d6e2f5c094558ca4748b72aff1ed1f3c3
SHA256

d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1
SHA512

d239e94ec9107b71e22a8951e230a704cb6306246c1566c39d9beadbf98a95e82092dbea79c915f3b2e114c0358d84c0379cba18eac774ead76d0d75187b7f3b
SSDEEP

49152:UzSmELXwfhM8PLsvSTHWLnxio6tuRGaJ:U+mELXyMIlT2X6YR

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__	d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1.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	d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Wine	d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1.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
2516	d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3012	2516	WerFault.exe	30

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	d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1.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	d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2516	d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1.exe
2516	d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 3012	2516	d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1.exe	33
PID 2516 wrote to memory of 3012	2516	d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1.exe	33
PID 2516 wrote to memory of 3012	2516	d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1.exe	33
PID 2516 wrote to memory of 3012	2516	d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1.exe	33

C:\Users\Admin\AppData\Local\Temp\d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1.exe
"C:\Users\Admin\AppData\Local\Temp\d5293d112971e79081529465c284e0e642f082d768f5107a7d5706b51fdbe2f1.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:2516
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2516 -s 936
  2⤵
  - Program crash
  PID:3012

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/2516-0-0x00000000000A0000-0x000000000072E000-memory.dmp

Filesize
6.6MB

Download
memory/2516-1-0x00000000772C0000-0x00000000772C2000-memory.dmp

Filesize
8KB

Download
memory/2516-2-0x00000000000A1000-0x00000000000B8000-memory.dmp

Filesize
92KB

Download
memory/2516-3-0x00000000000A0000-0x000000000072E000-memory.dmp

Filesize
6.6MB

Download
memory/2516-4-0x00000000000A0000-0x000000000072E000-memory.dmp

Filesize
6.6MB

Download
memory/2516-5-0x00000000000A0000-0x000000000072E000-memory.dmp

Filesize
6.6MB

Download
memory/2516-6-0x00000000000A0000-0x000000000072E000-memory.dmp

Filesize
6.6MB

Download
memory/2516-7-0x00000000000A0000-0x000000000072E000-memory.dmp

Filesize
6.6MB

Download
memory/2516-8-0x00000000000A0000-0x000000000072E000-memory.dmp

Filesize
6.6MB

Download
memory/2516-9-0x00000000000A0000-0x000000000072E000-memory.dmp

Filesize
6.6MB

Download
memory/2516-10-0x00000000000A0000-0x000000000072E000-memory.dmp

Filesize
6.6MB

Download
memory/2516-11-0x00000000000A0000-0x000000000072E000-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