stealc | 5f3bbcbfc3af0df3efbfa025309523f8d5d94fb80c23733c4ecc51a851f24146

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-11-2024 02:44

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General

Target

5f3bbcbfc3af0df3efbfa025309523f8d5d94fb80c23733c4ecc51a851f24146.exe
Size

2.0MB
MD5

39dcece0736e0185aa15fc863b0a30a6
SHA1

04f92f565fb6ca84d5545715b9e04dfb1e0b5d2f
SHA256

5f3bbcbfc3af0df3efbfa025309523f8d5d94fb80c23733c4ecc51a851f24146
SHA512

89bc5241f0a407a6986d8a44dcb98a3ead579276a820f062db5ee7ce0aa744ceea67601ad40ffb79b511f619cf3d723e582d2e1e5c2b1bbef51ffd0e007828c4
SSDEEP

49152:6trjeyT4BFh6Sh3U5oRLnzA4OvbVwhaen0ZVYQNWL:SeyT+T6Lo1nrQuh/d

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__	5f3bbcbfc3af0df3efbfa025309523f8d5d94fb80c23733c4ecc51a851f24146.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	5f3bbcbfc3af0df3efbfa025309523f8d5d94fb80c23733c4ecc51a851f24146.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	5f3bbcbfc3af0df3efbfa025309523f8d5d94fb80c23733c4ecc51a851f24146.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-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	5f3bbcbfc3af0df3efbfa025309523f8d5d94fb80c23733c4ecc51a851f24146.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4880	5f3bbcbfc3af0df3efbfa025309523f8d5d94fb80c23733c4ecc51a851f24146.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	5f3bbcbfc3af0df3efbfa025309523f8d5d94fb80c23733c4ecc51a851f24146.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4880	5f3bbcbfc3af0df3efbfa025309523f8d5d94fb80c23733c4ecc51a851f24146.exe
4880	5f3bbcbfc3af0df3efbfa025309523f8d5d94fb80c23733c4ecc51a851f24146.exe

C:\Users\Admin\AppData\Local\Temp\5f3bbcbfc3af0df3efbfa025309523f8d5d94fb80c23733c4ecc51a851f24146.exe
"C:\Users\Admin\AppData\Local\Temp\5f3bbcbfc3af0df3efbfa025309523f8d5d94fb80c23733c4ecc51a851f24146.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:4880

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/4880-0-0x0000000000FF0000-0x00000000016FA000-memory.dmp

Filesize
7.0MB

Download
memory/4880-1-0x0000000077564000-0x0000000077566000-memory.dmp

Filesize
8KB

Download
memory/4880-2-0x0000000000FF1000-0x0000000001059000-memory.dmp

Filesize
416KB

Download
memory/4880-3-0x0000000000FF0000-0x00000000016FA000-memory.dmp

Filesize
7.0MB

Download
memory/4880-5-0x0000000000FF0000-0x00000000016FA000-memory.dmp

Filesize
7.0MB

Download