stealc | 89257c8d1539e39a63211cdbe9436f90ed30ee944633acbb5b874c8d7dc0d888

Analysis

max time kernel
90s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
06-11-2024 08:51

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General

Target

89257c8d1539e39a63211cdbe9436f90ed30ee944633acbb5b874c8d7dc0d888.exe
Size

2.0MB
MD5

76c243aaeec7a3a40aa9a321018b90e5
SHA1

d981a422f6617e8677af138a32cdc888d51668b7
SHA256

89257c8d1539e39a63211cdbe9436f90ed30ee944633acbb5b874c8d7dc0d888
SHA512

c4e7580c1e0a2ebc738d0b44773fa236e573d6d529efd65d9c7ed60c29d232d4bc81cc0984bc3094b0c974644f40e9913830de5edcffa3c9197ee885c0ab35be
SSDEEP

49152:RVVz1gpTbrp/qDKuCPVsrZQrfwI3YvBVPE/hURbI8l:LV5g5vpSmuH9QrGTspif

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__	89257c8d1539e39a63211cdbe9436f90ed30ee944633acbb5b874c8d7dc0d888.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	89257c8d1539e39a63211cdbe9436f90ed30ee944633acbb5b874c8d7dc0d888.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	89257c8d1539e39a63211cdbe9436f90ed30ee944633acbb5b874c8d7dc0d888.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Wine	89257c8d1539e39a63211cdbe9436f90ed30ee944633acbb5b874c8d7dc0d888.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2440	89257c8d1539e39a63211cdbe9436f90ed30ee944633acbb5b874c8d7dc0d888.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	89257c8d1539e39a63211cdbe9436f90ed30ee944633acbb5b874c8d7dc0d888.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2440	89257c8d1539e39a63211cdbe9436f90ed30ee944633acbb5b874c8d7dc0d888.exe

C:\Users\Admin\AppData\Local\Temp\89257c8d1539e39a63211cdbe9436f90ed30ee944633acbb5b874c8d7dc0d888.exe
"C:\Users\Admin\AppData\Local\Temp\89257c8d1539e39a63211cdbe9436f90ed30ee944633acbb5b874c8d7dc0d888.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:2440

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/2440-0-0x0000000001150000-0x0000000001869000-memory.dmp

Filesize
7.1MB

Download
memory/2440-1-0x00000000773F0000-0x00000000773F2000-memory.dmp

Filesize
8KB

Download
memory/2440-2-0x0000000001151000-0x00000000011B9000-memory.dmp

Filesize
416KB

Download
memory/2440-3-0x0000000001150000-0x0000000001869000-memory.dmp

Filesize
7.1MB

Download
memory/2440-4-0x0000000001150000-0x0000000001869000-memory.dmp

Filesize
7.1MB

Download