stealc | 0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8

General

Target

0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8.exe
Size

1.7MB
MD5

9cf3d98d30cb22749784495a24fb1797
SHA1

d287ffb0fbd11642c44d62e93d0b0fa6bc3ee191
SHA256

0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8
SHA512

df6055357be9612a0fa48c42f2d5e00ed7881d685225e7c50caf4efae7f1dee3865af539fb8b3119ee25a203b15826031e8320930e47299e069e133ff1b62cb0
SSDEEP

49152:JvuZKCUUR1q3nkNXWQ2E+/RiO5oLcJAr5Yg:JmZKCrwADV+pjoWw7

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__	0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8.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	0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Wine	0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8.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
2928	0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2904	2928	WerFault.exe	29

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	0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2928	0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8.exe
2928	0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2928 wrote to memory of 2904	2928	0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8.exe	32
PID 2928 wrote to memory of 2904	2928	0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8.exe	32
PID 2928 wrote to memory of 2904	2928	0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8.exe	32
PID 2928 wrote to memory of 2904	2928	0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8.exe	32

C:\Users\Admin\AppData\Local\Temp\0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8.exe
"C:\Users\Admin\AppData\Local\Temp\0848f9e083714bd862e602308b0d7551649e7367d4fae8d0019bd1e714d366d8.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:2928
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2928 -s 928
  2⤵
  - Program crash
  PID:2904

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/2928-0-0x0000000000CB0000-0x0000000001331000-memory.dmp

Filesize
6.5MB

Download
memory/2928-1-0x0000000076F70000-0x0000000076F72000-memory.dmp

Filesize
8KB

Download
memory/2928-3-0x0000000000CB0000-0x0000000001331000-memory.dmp

Filesize
6.5MB

Download
memory/2928-2-0x0000000000CB1000-0x0000000000CC8000-memory.dmp

Filesize
92KB

Download
memory/2928-4-0x0000000000CB0000-0x0000000001331000-memory.dmp

Filesize
6.5MB

Download
memory/2928-5-0x0000000000CB0000-0x0000000001331000-memory.dmp

Filesize
6.5MB

Download
memory/2928-6-0x0000000000CB0000-0x0000000001331000-memory.dmp

Filesize
6.5MB

Download
memory/2928-7-0x0000000000CB0000-0x0000000001331000-memory.dmp

Filesize
6.5MB

Download
memory/2928-8-0x0000000000CB0000-0x0000000001331000-memory.dmp

Filesize
6.5MB

Download
memory/2928-9-0x0000000000CB0000-0x0000000001331000-memory.dmp

Filesize
6.5MB

Download
memory/2928-10-0x0000000000CB0000-0x0000000001331000-memory.dmp

Filesize
6.5MB

Download
memory/2928-11-0x0000000000CB0000-0x0000000001331000-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