stealc | e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb

General

Target

e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb.exe
Size

2.8MB
MD5

476f4f355f6be1a19dbc7ec75dc0c9dc
SHA1

e2b1d8b4b48f2966ffd93840ebfbbac07ffb6bc8
SHA256

e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb
SHA512

85c19c68e4d545eb6cfb7241d437e78f1e81f97377452ae5a4aecf41689401549fda5b3a3e90b4dd3f8ed46cb2172d1884ca73777297798ef340eba7f06aa155
SSDEEP

24576:2yh5fHv7Doh1eko23LM8e48xB3An7GzMUe5HRHgwINrt7EzAwKnbqcg2h9ZU22vV:nht3ohD3nFUeYFr9iAwKnV/t32L

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__	e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb.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	e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb.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-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb.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
2692	e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1356	2692	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	e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb.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	e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2692	e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb.exe
2692	e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 1356	2692	e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb.exe	32
PID 2692 wrote to memory of 1356	2692	e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb.exe	32
PID 2692 wrote to memory of 1356	2692	e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb.exe	32
PID 2692 wrote to memory of 1356	2692	e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb.exe	32

C:\Users\Admin\AppData\Local\Temp\e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb.exe
"C:\Users\Admin\AppData\Local\Temp\e8e5a4aacb9e84f0aeba74900363cd98ef26d9f76099912b4cdaf4d431f342fb.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:2692
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 924
  2⤵
  - Program crash
  PID:1356

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/2692-0-0x0000000000EF0000-0x00000000013EB000-memory.dmp

Filesize
5.0MB

Download
memory/2692-1-0x00000000778B0000-0x00000000778B2000-memory.dmp

Filesize
8KB

Download
memory/2692-2-0x0000000000EF1000-0x0000000000F08000-memory.dmp

Filesize
92KB

Download
memory/2692-3-0x0000000000EF0000-0x00000000013EB000-memory.dmp

Filesize
5.0MB

Download
memory/2692-4-0x0000000000EF0000-0x00000000013EB000-memory.dmp

Filesize
5.0MB

Download
memory/2692-5-0x0000000000EF0000-0x00000000013EB000-memory.dmp

Filesize
5.0MB

Download
memory/2692-6-0x0000000000EF0000-0x00000000013EB000-memory.dmp

Filesize
5.0MB

Download
memory/2692-7-0x0000000000EF0000-0x00000000013EB000-memory.dmp

Filesize
5.0MB

Download
memory/2692-8-0x0000000000EF0000-0x00000000013EB000-memory.dmp

Filesize
5.0MB

Download
memory/2692-9-0x0000000000EF0000-0x00000000013EB000-memory.dmp

Filesize
5.0MB

Download
memory/2692-10-0x0000000000EF0000-0x00000000013EB000-memory.dmp

Filesize
5.0MB

Download
memory/2692-11-0x0000000000EF0000-0x00000000013EB000-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