stealc | b58e50d8671afe70416f57d76af797a253c91b824e30ed75182fac5467abe136

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
07-11-2024 03:06

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General

Target

b58e50d8671afe70416f57d76af797a253c91b824e30ed75182fac5467abe136.exe
Size

2.0MB
MD5

51d2305e72f359fca597f845144a62f5
SHA1

05a9bd41d30eaf9d226c839cdc81606bdee4e1ed
SHA256

b58e50d8671afe70416f57d76af797a253c91b824e30ed75182fac5467abe136
SHA512

8b9769bdabb3b08b0f249a64abf151125c48c36d653010b8cd3bd7ac819fa8a25d7a1d9cd5f160aef148b4ce5691ec0cec8f8cc767d248172f8ae193262f28f2
SSDEEP

49152:mBUol/2gemtQRj+AN+6CfJ6nLSqTgn4AnGjhB6mrs9KIm:fSeDzN+6wJ6I4AGpw+

Score

10^/10

stealc tale discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

tale

http://185.215.113.206

Attributes

url_path
/6c4adf523b719729.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__	b58e50d8671afe70416f57d76af797a253c91b824e30ed75182fac5467abe136.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\VideoBiosVersion	b58e50d8671afe70416f57d76af797a253c91b824e30ed75182fac5467abe136.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b58e50d8671afe70416f57d76af797a253c91b824e30ed75182fac5467abe136.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Wine	b58e50d8671afe70416f57d76af797a253c91b824e30ed75182fac5467abe136.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1672	b58e50d8671afe70416f57d76af797a253c91b824e30ed75182fac5467abe136.exe

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	b58e50d8671afe70416f57d76af797a253c91b824e30ed75182fac5467abe136.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1672	b58e50d8671afe70416f57d76af797a253c91b824e30ed75182fac5467abe136.exe

C:\Users\Admin\AppData\Local\Temp\b58e50d8671afe70416f57d76af797a253c91b824e30ed75182fac5467abe136.exe
"C:\Users\Admin\AppData\Local\Temp\b58e50d8671afe70416f57d76af797a253c91b824e30ed75182fac5467abe136.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
- Suspicious behavior: EnumeratesProcesses
PID:1672

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1672-0-0x0000000000160000-0x000000000087F000-memory.dmp

Filesize
7.1MB

Download
memory/1672-1-0x00000000774E0000-0x00000000774E2000-memory.dmp

Filesize
8KB

Download
memory/1672-2-0x0000000000161000-0x00000000001C9000-memory.dmp

Filesize
416KB

Download
memory/1672-3-0x0000000000160000-0x000000000087F000-memory.dmp

Filesize
7.1MB

Download
memory/1672-4-0x0000000000160000-0x000000000087F000-memory.dmp

Filesize
7.1MB

Download