stealc | 17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2

General

Target

17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2.exe
Size

2.8MB
MD5

0c5f765bc208ceef4c1e5bb760089e83
SHA1

af5a32090aa4d26a02290a0e19f229f9f1c0ba71
SHA256

17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2
SHA512

0c08163e285e0f9cc2ebf3da1fa01a888c836aa673526ace2b534a445a3f165eedb357a4728dee2c60ddb4172d893739a90cae6adfebef2d7df6af97d26edd89
SSDEEP

49152:gdz6RdHP1d63QMJwmPplv875GLhWUO1WbqomsZ9atAMgHM:vv1d6AM+wplv875GLAV1WbqoX8tAr

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__	17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2.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	17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2.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-1-5-21-1488793075-819845221-1497111674-1000\Software\Wine	17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2.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
2512	17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2584	2512	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	17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2.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	17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2512	17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2.exe
2512	17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 2584	2512	17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2.exe	32
PID 2512 wrote to memory of 2584	2512	17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2.exe	32
PID 2512 wrote to memory of 2584	2512	17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2.exe	32
PID 2512 wrote to memory of 2584	2512	17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2.exe	32

C:\Users\Admin\AppData\Local\Temp\17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2.exe
"C:\Users\Admin\AppData\Local\Temp\17f06e1a3b293bcd8507f641697b94d3f4d7ef9db7c6f165cee750d7b0c686d2.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:2512
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2512 -s 924
  2⤵
  - Program crash
  PID:2584

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/2512-0-0x0000000000030000-0x000000000052A000-memory.dmp

Filesize
5.0MB

Download
memory/2512-1-0x0000000077460000-0x0000000077462000-memory.dmp

Filesize
8KB

Download
memory/2512-2-0x0000000000031000-0x0000000000048000-memory.dmp

Filesize
92KB

Download
memory/2512-3-0x0000000000030000-0x000000000052A000-memory.dmp

Filesize
5.0MB

Download
memory/2512-4-0x0000000000030000-0x000000000052A000-memory.dmp

Filesize
5.0MB

Download
memory/2512-5-0x0000000000030000-0x000000000052A000-memory.dmp

Filesize
5.0MB

Download
memory/2512-6-0x0000000000030000-0x000000000052A000-memory.dmp

Filesize
5.0MB

Download
memory/2512-7-0x0000000000030000-0x000000000052A000-memory.dmp

Filesize
5.0MB

Download
memory/2512-8-0x0000000000030000-0x000000000052A000-memory.dmp

Filesize
5.0MB

Download
memory/2512-9-0x0000000000030000-0x000000000052A000-memory.dmp

Filesize
5.0MB

Download
memory/2512-10-0x0000000000030000-0x000000000052A000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads