stealc | 12f5f85d6086d0e091646fb6fcc696fd55d94a00fe41c469a219fb111a1da3b9

General

Target

12f5f85d6086d0e091646fb6fcc696fd55d94a00fe41c469a219fb111a1da3b9.exe
Size

1.7MB
MD5

77702a2d9700f6a95f4d5d07031bb3c5
SHA1

6c08c713e5f13fbdfa60402269ebb96a6de8b73f
SHA256

12f5f85d6086d0e091646fb6fcc696fd55d94a00fe41c469a219fb111a1da3b9
SHA512

afb73eba6c60dcfbe45a4fb57fa08a398510b1982090511de228c5b7231fa81384506091551de98404b8ac30d5a5f4669d8cf08c626ffcaed20cb4cbe3467949
SSDEEP

49152:KN5aoV9cZpK4EXhSbbecYJnhAEHs7uwSmIY/VYR:KraKCpK4EXhSb6cGMSwSXM

Score

10^/10

stealc reno defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

reno

C2

http://185.215.113.115

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__	12f5f85d6086d0e091646fb6fcc696fd55d94a00fe41c469a219fb111a1da3b9.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	12f5f85d6086d0e091646fb6fcc696fd55d94a00fe41c469a219fb111a1da3b9.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	12f5f85d6086d0e091646fb6fcc696fd55d94a00fe41c469a219fb111a1da3b9.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-1-5-21-805940606-1861219160-370298170-1000\Software\Wine	12f5f85d6086d0e091646fb6fcc696fd55d94a00fe41c469a219fb111a1da3b9.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
4256	12f5f85d6086d0e091646fb6fcc696fd55d94a00fe41c469a219fb111a1da3b9.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3908	4256	WerFault.exe	85

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	12f5f85d6086d0e091646fb6fcc696fd55d94a00fe41c469a219fb111a1da3b9.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	12f5f85d6086d0e091646fb6fcc696fd55d94a00fe41c469a219fb111a1da3b9.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	12f5f85d6086d0e091646fb6fcc696fd55d94a00fe41c469a219fb111a1da3b9.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4256	12f5f85d6086d0e091646fb6fcc696fd55d94a00fe41c469a219fb111a1da3b9.exe
4256	12f5f85d6086d0e091646fb6fcc696fd55d94a00fe41c469a219fb111a1da3b9.exe
4256	12f5f85d6086d0e091646fb6fcc696fd55d94a00fe41c469a219fb111a1da3b9.exe
4256	12f5f85d6086d0e091646fb6fcc696fd55d94a00fe41c469a219fb111a1da3b9.exe

C:\Users\Admin\AppData\Local\Temp\12f5f85d6086d0e091646fb6fcc696fd55d94a00fe41c469a219fb111a1da3b9.exe
"C:\Users\Admin\AppData\Local\Temp\12f5f85d6086d0e091646fb6fcc696fd55d94a00fe41c469a219fb111a1da3b9.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:4256
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4256 -s 1476
  2⤵
  - Program crash
  PID:3908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4256 -ip 4256
1⤵
PID:3680

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/4256-0-0x0000000000F30000-0x00000000015C2000-memory.dmp

Filesize
6.6MB

Download
memory/4256-1-0x0000000077724000-0x0000000077726000-memory.dmp

Filesize
8KB

Download
memory/4256-2-0x0000000000F31000-0x0000000000F48000-memory.dmp

Filesize
92KB

Download
memory/4256-3-0x0000000000F30000-0x00000000015C2000-memory.dmp

Filesize
6.6MB

Download
memory/4256-4-0x0000000000F30000-0x00000000015C2000-memory.dmp

Filesize
6.6MB

Download
memory/4256-5-0x0000000000F30000-0x00000000015C2000-memory.dmp

Filesize
6.6MB

Download
memory/4256-6-0x0000000000F30000-0x00000000015C2000-memory.dmp

Filesize
6.6MB

Download
memory/4256-7-0x0000000000F30000-0x00000000015C2000-memory.dmp

Filesize
6.6MB

Download
memory/4256-8-0x0000000000F30000-0x00000000015C2000-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