stealc | 3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e

General

Target

3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e.exe
Size

4.9MB
MD5

552ef21b4e3ef804f134e4345a404962
SHA1

6778dc16edabaa006d0e9deb11b099c9892cea16
SHA256

3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e
SHA512

caa8361152d362111a6a73abde2cd2267bf29917053a68dc61fb4d99026581d4704e9cc9c17abf3e026efe67106fb3384ad4e2cb6efda90e5fc16980550383d6
SSDEEP

24576:y8vrbZbReLxfyp6EtuseHTfX7YkcG4fLxaLYsDAwz7LFheNSvMgeCRP0W30j7+Y2:bFeLgYEzwYfLxhgFrvMgRN0jRL13KfQ

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__	3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e.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	3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Wine	3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e.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
2336	3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2452	2336	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	3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e.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	3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2336	3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e.exe
2336	3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 2452	2336	3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e.exe	32
PID 2336 wrote to memory of 2452	2336	3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e.exe	32
PID 2336 wrote to memory of 2452	2336	3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e.exe	32
PID 2336 wrote to memory of 2452	2336	3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e.exe	32

C:\Users\Admin\AppData\Local\Temp\3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e.exe
"C:\Users\Admin\AppData\Local\Temp\3e8225613104b9aa59b0a661e329a4269b9984284187884e44852026ad7fd49e.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:2336
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2336 -s 936
  2⤵
  - Program crash
  PID:2452

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/2336-0-0x0000000000CB0000-0x0000000001193000-memory.dmp

Filesize
4.9MB

Download
memory/2336-1-0x00000000774F0000-0x00000000774F2000-memory.dmp

Filesize
8KB

Download
memory/2336-2-0x0000000000CB1000-0x0000000000EFA000-memory.dmp

Filesize
2.3MB

Download
memory/2336-3-0x0000000000CB0000-0x0000000001193000-memory.dmp

Filesize
4.9MB

Download
memory/2336-4-0x0000000000CB0000-0x0000000001193000-memory.dmp

Filesize
4.9MB

Download
memory/2336-5-0x0000000000CB1000-0x0000000000EFA000-memory.dmp

Filesize
2.3MB

Download
memory/2336-6-0x0000000000CB0000-0x0000000001193000-memory.dmp

Filesize
4.9MB

Download
memory/2336-7-0x0000000000CB0000-0x0000000001193000-memory.dmp

Filesize
4.9MB

Download
memory/2336-8-0x0000000000CB0000-0x0000000001193000-memory.dmp

Filesize
4.9MB

Download
memory/2336-9-0x0000000000CB0000-0x0000000001193000-memory.dmp

Filesize
4.9MB

Download
memory/2336-10-0x0000000000CB0000-0x0000000001193000-memory.dmp

Filesize
4.9MB

Download
memory/2336-11-0x0000000000CB0000-0x0000000001193000-memory.dmp

Filesize
4.9MB

Download
memory/2336-12-0x0000000000CB0000-0x0000000001193000-memory.dmp

Filesize
4.9MB

Download
memory/2336-13-0x0000000000CB1000-0x0000000000EFA000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads