stealc | 242a2af95649b17491512cc47738db2daabccd346bed01f888a87d7f65cb6d5d

General

Target

242a2af95649b17491512cc47738db2daabccd346bed01f888a87d7f65cb6d5d.exe
Size

1.7MB
MD5

9c4a91d095e3ce7b507136bf2cb399df
SHA1

f250236a6c348999443d7460578ee055d837182f
SHA256

242a2af95649b17491512cc47738db2daabccd346bed01f888a87d7f65cb6d5d
SHA512

84371b2fbe80991126c5ada3dba3ebb590b72ce98b4abd24b88d57a901073e5d1420608783cda9739b69d6dcf2fc50687d73292f6da2d4e6f077ac617bd4807d
SSDEEP

24576:k3Jad98zXRyHMt/qO6VFAvl8cGzlvE4o9nau2BpW7kioOyMgQgzRla2uVRTHWkGU:kzzRmAvpG42G7kisQgvduvTHlLd3

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__	242a2af95649b17491512cc47738db2daabccd346bed01f888a87d7f65cb6d5d.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	242a2af95649b17491512cc47738db2daabccd346bed01f888a87d7f65cb6d5d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	242a2af95649b17491512cc47738db2daabccd346bed01f888a87d7f65cb6d5d.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-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	242a2af95649b17491512cc47738db2daabccd346bed01f888a87d7f65cb6d5d.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
1092	242a2af95649b17491512cc47738db2daabccd346bed01f888a87d7f65cb6d5d.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1344	1092	WerFault.exe	81

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	242a2af95649b17491512cc47738db2daabccd346bed01f888a87d7f65cb6d5d.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	242a2af95649b17491512cc47738db2daabccd346bed01f888a87d7f65cb6d5d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	242a2af95649b17491512cc47738db2daabccd346bed01f888a87d7f65cb6d5d.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1092	242a2af95649b17491512cc47738db2daabccd346bed01f888a87d7f65cb6d5d.exe
1092	242a2af95649b17491512cc47738db2daabccd346bed01f888a87d7f65cb6d5d.exe
1092	242a2af95649b17491512cc47738db2daabccd346bed01f888a87d7f65cb6d5d.exe
1092	242a2af95649b17491512cc47738db2daabccd346bed01f888a87d7f65cb6d5d.exe

C:\Users\Admin\AppData\Local\Temp\242a2af95649b17491512cc47738db2daabccd346bed01f888a87d7f65cb6d5d.exe
"C:\Users\Admin\AppData\Local\Temp\242a2af95649b17491512cc47738db2daabccd346bed01f888a87d7f65cb6d5d.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
PID:1092
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1092 -s 1476
  2⤵
  - Program crash
  PID:1344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1092 -ip 1092
1⤵
PID:1376

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/1092-0-0x00000000004A0000-0x0000000000B2B000-memory.dmp

Filesize
6.5MB

Download
memory/1092-1-0x00000000779D4000-0x00000000779D6000-memory.dmp

Filesize
8KB

Download
memory/1092-2-0x00000000004A1000-0x00000000004B8000-memory.dmp

Filesize
92KB

Download
memory/1092-3-0x00000000004A0000-0x0000000000B2B000-memory.dmp

Filesize
6.5MB

Download
memory/1092-4-0x00000000004A0000-0x0000000000B2B000-memory.dmp

Filesize
6.5MB

Download
memory/1092-5-0x00000000004A0000-0x0000000000B2B000-memory.dmp

Filesize
6.5MB

Download
memory/1092-6-0x00000000004A0000-0x0000000000B2B000-memory.dmp

Filesize
6.5MB

Download
memory/1092-7-0x00000000004A0000-0x0000000000B2B000-memory.dmp

Filesize
6.5MB

Download
memory/1092-8-0x00000000004A0000-0x0000000000B2B000-memory.dmp

Filesize
6.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads