stealc | 05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb

General

Target

05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb.exe
Size

2.7MB
MD5

8bf31373171b9a05a2fd3f0c758554df
SHA1

2ac256d183f41e845433a542e0909ce6c23352b5
SHA256

05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb
SHA512

9d6a57c4a33fcd19299db46d2486aed3128436f60d6861f2c08762280326b81697c3e1bfde1c861811557b669a8f3828a1cad1f8a78dd3c126cdfbed5bb6a35c
SSDEEP

24576:zKD/5WNAFBKQePudF3QoCnzQsHTaz55Ipc6TDaAFNlWp+XbPoJ6+QwGA/ZSW0fud:Q2QBQzzNTGkrMQbuFGfWJuIfX5

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__	05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb.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	05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb.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	05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb.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
1528	05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2860	1528	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	05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb.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	05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1528	05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb.exe
1528	05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1528 wrote to memory of 2860	1528	05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb.exe	32
PID 1528 wrote to memory of 2860	1528	05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb.exe	32
PID 1528 wrote to memory of 2860	1528	05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb.exe	32
PID 1528 wrote to memory of 2860	1528	05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb.exe	32

C:\Users\Admin\AppData\Local\Temp\05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb.exe
"C:\Users\Admin\AppData\Local\Temp\05343de2fa22759f7798822309df8454aef0d84642e5664d170c33afbf282efb.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:1528
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1528 -s 932
  2⤵
  - Program crash
  PID:2860

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/1528-0-0x0000000000A10000-0x0000000000EF3000-memory.dmp

Filesize
4.9MB

Download
memory/1528-1-0x0000000076F60000-0x0000000076F62000-memory.dmp

Filesize
8KB

Download
memory/1528-2-0x0000000000A11000-0x0000000000A28000-memory.dmp

Filesize
92KB

Download
memory/1528-3-0x0000000000A10000-0x0000000000EF3000-memory.dmp

Filesize
4.9MB

Download
memory/1528-4-0x0000000000A10000-0x0000000000EF3000-memory.dmp

Filesize
4.9MB

Download
memory/1528-5-0x0000000000A10000-0x0000000000EF3000-memory.dmp

Filesize
4.9MB

Download
memory/1528-6-0x0000000000A10000-0x0000000000EF3000-memory.dmp

Filesize
4.9MB

Download
memory/1528-7-0x0000000000A10000-0x0000000000EF3000-memory.dmp

Filesize
4.9MB

Download
memory/1528-8-0x0000000000A10000-0x0000000000EF3000-memory.dmp

Filesize
4.9MB

Download
memory/1528-9-0x0000000000A10000-0x0000000000EF3000-memory.dmp

Filesize
4.9MB

Download
memory/1528-10-0x0000000000A10000-0x0000000000EF3000-memory.dmp

Filesize
4.9MB

Download
memory/1528-11-0x0000000000A10000-0x0000000000EF3000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads