stealc | 65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752

General

Target

65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752.exe
Size

1.7MB
MD5

676c4435fd1e569c8fd76c336a52fa76
SHA1

1ccf19102b17fb9600f54628239941c8a958e110
SHA256

65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752
SHA512

43fa94afaccad3c98f1280d9bee23506cb6e39c9d1f98bddf747667d424fd13e9d837503d8ccb2a94fd42c352fa7e4c6b4c298460e43b04d6fbfb9709dea346d
SSDEEP

24576:y4sDg/2T3QulpRjarS4agbm4O3lLl3YxmPqaSeCwwn0wVha0wz2udfcKy:B+TZ7jtZd33+eChHSHcK

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__	65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752.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	65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752.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	65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752.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
2092	65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2368	2092	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	65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752.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	65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2092	65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752.exe
2092	65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 2368	2092	65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752.exe	32
PID 2092 wrote to memory of 2368	2092	65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752.exe	32
PID 2092 wrote to memory of 2368	2092	65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752.exe	32
PID 2092 wrote to memory of 2368	2092	65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752.exe	32

C:\Users\Admin\AppData\Local\Temp\65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752.exe
"C:\Users\Admin\AppData\Local\Temp\65ea8e083343c8d3ee4c64d2a6b38e1998835ecc7da8f0a34ba44fac57389752.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:2092
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2092 -s 932
  2⤵
  - Program crash
  PID:2368

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/2092-0-0x0000000000CD0000-0x0000000001369000-memory.dmp

Filesize
6.6MB

Download
memory/2092-1-0x00000000773C0000-0x00000000773C2000-memory.dmp

Filesize
8KB

Download
memory/2092-2-0x0000000000CD1000-0x0000000000CE8000-memory.dmp

Filesize
92KB

Download
memory/2092-3-0x0000000000CD0000-0x0000000001369000-memory.dmp

Filesize
6.6MB

Download
memory/2092-4-0x0000000000CD0000-0x0000000001369000-memory.dmp

Filesize
6.6MB

Download
memory/2092-5-0x0000000000CD0000-0x0000000001369000-memory.dmp

Filesize
6.6MB

Download
memory/2092-6-0x0000000000CD0000-0x0000000001369000-memory.dmp

Filesize
6.6MB

Download
memory/2092-7-0x0000000000CD0000-0x0000000001369000-memory.dmp

Filesize
6.6MB

Download
memory/2092-8-0x0000000000CD0000-0x0000000001369000-memory.dmp

Filesize
6.6MB

Download
memory/2092-9-0x0000000000CD0000-0x0000000001369000-memory.dmp

Filesize
6.6MB

Download
memory/2092-10-0x0000000000CD0000-0x0000000001369000-memory.dmp

Filesize
6.6MB

Download
memory/2092-11-0x0000000000CD0000-0x0000000001369000-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