stealc | cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a

General

Target

cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a.exe
Size

5.0MB
MD5

1a0527b260fa04d76f3681a8e8c073e8
SHA1

30770bf1453e27aaa646012fa206d1dce9303ee7
SHA256

cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a
SHA512

1276727d328ded813f70ea4c1b6475aea0fdc4ecf77b1b924d39699c547e76bf6d352eda4fbc63d298d2ef407cac1686b8addfbdd4bb92f66b09379b0114340c
SSDEEP

49152:nIrv32Mmi4CKgHrtF5FguaTNFDcbjLOtsc5R+kVDM3Hb:Irv2Mmi4CKktnCvDDcbWa

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__	cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a.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	cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a.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-1-5-21-2039016743-699959520-214465309-1000\Software\Wine	cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a.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
3012	cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2732	3012	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	cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a.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	cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3012	cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a.exe
3012	cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 2732	3012	cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a.exe	32
PID 3012 wrote to memory of 2732	3012	cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a.exe	32
PID 3012 wrote to memory of 2732	3012	cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a.exe	32
PID 3012 wrote to memory of 2732	3012	cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a.exe	32

C:\Users\Admin\AppData\Local\Temp\cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a.exe
"C:\Users\Admin\AppData\Local\Temp\cd4983b57559febd4defa362f134cce10e56878b1009d7ce7c8b921e3a663e0a.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:3012
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3012 -s 932
  2⤵
  - Program crash
  PID:2732

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/3012-0-0x00000000000A0000-0x000000000059C000-memory.dmp

Filesize
5.0MB

Download
memory/3012-1-0x0000000076EE0000-0x0000000076EE2000-memory.dmp

Filesize
8KB

Download
memory/3012-2-0x00000000000A1000-0x00000000002EA000-memory.dmp

Filesize
2.3MB

Download
memory/3012-3-0x00000000000A0000-0x000000000059C000-memory.dmp

Filesize
5.0MB

Download
memory/3012-4-0x00000000000A0000-0x000000000059C000-memory.dmp

Filesize
5.0MB

Download
memory/3012-5-0x00000000000A1000-0x00000000002EA000-memory.dmp

Filesize
2.3MB

Download
memory/3012-6-0x00000000000A0000-0x000000000059C000-memory.dmp

Filesize
5.0MB

Download
memory/3012-7-0x00000000000A0000-0x000000000059C000-memory.dmp

Filesize
5.0MB

Download
memory/3012-8-0x00000000000A0000-0x000000000059C000-memory.dmp

Filesize
5.0MB

Download
memory/3012-9-0x00000000000A0000-0x000000000059C000-memory.dmp

Filesize
5.0MB

Download
memory/3012-10-0x00000000000A0000-0x000000000059C000-memory.dmp

Filesize
5.0MB

Download
memory/3012-11-0x00000000000A0000-0x000000000059C000-memory.dmp

Filesize
5.0MB

Download
memory/3012-12-0x00000000000A0000-0x000000000059C000-memory.dmp

Filesize
5.0MB

Download
memory/3012-13-0x00000000000A1000-0x00000000002EA000-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