stealc | 05fed4a506197205fafaeeea13ad99a1cc33df020ba9601169916581dc4aded7

General

Target

05fed4a506197205fafaeeea13ad99a1cc33df020ba9601169916581dc4aded7.exe
Size

5.0MB
MD5

b9280de6d205dd0eee16439442bb16e6
SHA1

81b30f551133bd59907405c5193e96db4ce665b0
SHA256

05fed4a506197205fafaeeea13ad99a1cc33df020ba9601169916581dc4aded7
SHA512

375d28ccb434e8cd7a1e727afcffbcc26c999aee88a26afa858daeeabfeff15af7213ee1797a6c53580ada82c7f2baf867db2321832d93378399b62fb89ab8aa
SSDEEP

49152:koVdHoJqHpdiFjGxJrmyzuK08cPKxhsvMmXEAB2ejPzMHxMYe:phgqHp4FjGxJrmyzur8gEpAB/sHxMYe

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__	05fed4a506197205fafaeeea13ad99a1cc33df020ba9601169916581dc4aded7.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	05fed4a506197205fafaeeea13ad99a1cc33df020ba9601169916581dc4aded7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	05fed4a506197205fafaeeea13ad99a1cc33df020ba9601169916581dc4aded7.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-1-5-21-4089630652-1596403869-279772308-1000\Software\Wine	05fed4a506197205fafaeeea13ad99a1cc33df020ba9601169916581dc4aded7.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
4988	05fed4a506197205fafaeeea13ad99a1cc33df020ba9601169916581dc4aded7.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2412	4988	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	05fed4a506197205fafaeeea13ad99a1cc33df020ba9601169916581dc4aded7.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	05fed4a506197205fafaeeea13ad99a1cc33df020ba9601169916581dc4aded7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	05fed4a506197205fafaeeea13ad99a1cc33df020ba9601169916581dc4aded7.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4988	05fed4a506197205fafaeeea13ad99a1cc33df020ba9601169916581dc4aded7.exe
4988	05fed4a506197205fafaeeea13ad99a1cc33df020ba9601169916581dc4aded7.exe
4988	05fed4a506197205fafaeeea13ad99a1cc33df020ba9601169916581dc4aded7.exe
4988	05fed4a506197205fafaeeea13ad99a1cc33df020ba9601169916581dc4aded7.exe

C:\Users\Admin\AppData\Local\Temp\05fed4a506197205fafaeeea13ad99a1cc33df020ba9601169916581dc4aded7.exe
"C:\Users\Admin\AppData\Local\Temp\05fed4a506197205fafaeeea13ad99a1cc33df020ba9601169916581dc4aded7.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:4988
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4988 -s 1468
  2⤵
  - Program crash
  PID:2412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4988 -ip 4988
1⤵
PID:2276

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/4988-0-0x0000000000D40000-0x0000000001248000-memory.dmp

Filesize
5.0MB

Download
memory/4988-1-0x0000000077374000-0x0000000077376000-memory.dmp

Filesize
8KB

Download
memory/4988-2-0x0000000000D41000-0x0000000000F8A000-memory.dmp

Filesize
2.3MB

Download
memory/4988-3-0x0000000000D40000-0x0000000001248000-memory.dmp

Filesize
5.0MB

Download
memory/4988-4-0x0000000000D40000-0x0000000001248000-memory.dmp

Filesize
5.0MB

Download
memory/4988-5-0x0000000000D41000-0x0000000000F8A000-memory.dmp

Filesize
2.3MB

Download
memory/4988-6-0x0000000000D40000-0x0000000001248000-memory.dmp

Filesize
5.0MB

Download
memory/4988-7-0x0000000000D40000-0x0000000001248000-memory.dmp

Filesize
5.0MB

Download
memory/4988-8-0x0000000000D40000-0x0000000001248000-memory.dmp

Filesize
5.0MB

Download
memory/4988-9-0x0000000000D40000-0x0000000001248000-memory.dmp

Filesize
5.0MB

Download
memory/4988-10-0x0000000000D41000-0x0000000000F8A000-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