stealc | 46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9

General

Target

46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9.exe
Size

1.7MB
MD5

dcbcc6c67e3e57558cd2af1bea9fde49
SHA1

1b3321810cfde6653c1909124295f7f94c8bfee9
SHA256

46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9
SHA512

cc63f2c32735f424796c887a2c56defec0b884942443dc455a4089fd066c0d0bcad58eb15e70f251cf3ddb8a54cb6c1b0b83d99cf46786b9f642d1f21b7aef1b
SSDEEP

24576:YHX8Nf8yf5zHuYAg2izG4qzOF1mjq0YU917qx1sf1dcCzS2DjRmy90Rbr8VJOIP5:A8l1xjuYpEzsm5p/LfkCjP90R/sB0

Score

10^/10

stealc stok discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

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__	46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9.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	46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9.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
2208	46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2228	2208	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	46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9.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	46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2208	46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9.exe
2208	46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 2228	2208	46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9.exe	31
PID 2208 wrote to memory of 2228	2208	46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9.exe	31
PID 2208 wrote to memory of 2228	2208	46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9.exe	31
PID 2208 wrote to memory of 2228	2208	46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9.exe	31

C:\Users\Admin\AppData\Local\Temp\46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9.exe
"C:\Users\Admin\AppData\Local\Temp\46f2afd411f49b3dc2d905990405620b1e367bfa18a9774fbeec905d0b6c48e9.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:2208
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2208 -s 432
  2⤵
  - Program crash
  PID:2228

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/2208-0-0x0000000000CA0000-0x0000000001339000-memory.dmp

Filesize
6.6MB

Download
memory/2208-1-0x00000000777D0000-0x00000000777D2000-memory.dmp

Filesize
8KB

Download
memory/2208-2-0x0000000000CA1000-0x0000000000CB8000-memory.dmp

Filesize
92KB

Download
memory/2208-3-0x0000000000CA0000-0x0000000001339000-memory.dmp

Filesize
6.6MB

Download
memory/2208-4-0x0000000000CA0000-0x0000000001339000-memory.dmp

Filesize
6.6MB

Download
memory/2208-5-0x0000000000CA0000-0x0000000001339000-memory.dmp

Filesize
6.6MB

Download
memory/2208-6-0x0000000000CA0000-0x0000000001339000-memory.dmp

Filesize
6.6MB

Download
memory/2208-7-0x0000000000CA0000-0x0000000001339000-memory.dmp

Filesize
6.6MB

Download
memory/2208-8-0x0000000000CA0000-0x0000000001339000-memory.dmp

Filesize
6.6MB

Download
memory/2208-9-0x0000000000CA0000-0x0000000001339000-memory.dmp

Filesize
6.6MB

Download
memory/2208-10-0x0000000000CA0000-0x0000000001339000-memory.dmp

Filesize
6.6MB

Download
memory/2208-11-0x0000000000CA0000-0x0000000001339000-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