stealc | 36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c

General

Target

36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c.exe
Size

2.7MB
MD5

feec5b745edfa5a3f51e18af6816d3f3
SHA1

5d2f798b9a509694edc92e0ae7250c9915c5e594
SHA256

36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c
SHA512

8e702e13af0af46014121465315fa0b745766aa4579f08ae8cc7afce19705564410361a526af98b3840d3f8d76dea8c22b760755423e45b747da978b65ffe975
SSDEEP

24576:NlmwEycnseIVqSWgsbVAb7FJlRSmJYkVqqm4CigrvxS7ZjcSDVudpR7n/9j60qZy:Nlm0clYW5Ze7FIyMqZrotn/UlHAZ09Q

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__	36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c.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	36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c.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	36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c.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
3028	36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2396	3028	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	36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c.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	36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3028	36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c.exe
3028	36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 2396	3028	36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c.exe	32
PID 3028 wrote to memory of 2396	3028	36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c.exe	32
PID 3028 wrote to memory of 2396	3028	36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c.exe	32
PID 3028 wrote to memory of 2396	3028	36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c.exe	32

C:\Users\Admin\AppData\Local\Temp\36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c.exe
"C:\Users\Admin\AppData\Local\Temp\36eb3089e093e058468907e08c07d561f83a1128fde7042e403fafcb4192558c.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:3028
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3028 -s 924
  2⤵
  - Program crash
  PID:2396

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/3028-0-0x0000000000EA0000-0x0000000001395000-memory.dmp

Filesize
5.0MB

Download
memory/3028-1-0x0000000077A30000-0x0000000077A32000-memory.dmp

Filesize
8KB

Download
memory/3028-2-0x0000000000EA1000-0x0000000000EB8000-memory.dmp

Filesize
92KB

Download
memory/3028-3-0x0000000000EA0000-0x0000000001395000-memory.dmp

Filesize
5.0MB

Download
memory/3028-4-0x0000000000EA0000-0x0000000001395000-memory.dmp

Filesize
5.0MB

Download
memory/3028-5-0x0000000000EA0000-0x0000000001395000-memory.dmp

Filesize
5.0MB

Download
memory/3028-6-0x0000000000EA0000-0x0000000001395000-memory.dmp

Filesize
5.0MB

Download
memory/3028-7-0x0000000000EA0000-0x0000000001395000-memory.dmp

Filesize
5.0MB

Download
memory/3028-8-0x0000000000EA0000-0x0000000001395000-memory.dmp

Filesize
5.0MB

Download
memory/3028-9-0x0000000000EA0000-0x0000000001395000-memory.dmp

Filesize
5.0MB

Download
memory/3028-10-0x0000000000EA0000-0x0000000001395000-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