stealc | 82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2024 02:41

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General

Target

82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd.exe
Size

1.7MB
MD5

839a665835f7c3206f7dcfc30378eb90
SHA1

1facfc21eed29ae31ea6781482da70e87a8f89ff
SHA256

82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd
SHA512

f3543bad711c788329c6be8f8a7cfa06b9203cb1a73f9f617f05c4cc6f8557b3d0b81d8a500e1202d4b92ead0440d4b70ccd119896e51be531ededbee88b48f9
SSDEEP

24576:bVpf7Ep73Z0fa6l5kAmrUU7efuNwYA5mWnFPb/fK5AMEpoxxPhblwRpbvpkvz4IP:JpM107l5kAc1eNEUaAMrxP5lJKPc6b

Score

10^/10

stealc mars discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

mars

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

Processes:

82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd.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

Processes:

82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd.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

Processes:

82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd.exe

pid process

1396 82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd.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

Processes:

82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd.exe

pid	process
1396	82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd.exe
1396	82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd.exe

C:\Users\Admin\AppData\Local\Temp\82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd.exe
"C:\Users\Admin\AppData\Local\Temp\82672b451fdaee65c1fbcac9db7d969bb928f566f6d8ae55bd4c02a34236ddcd.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:1396

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/1396-0-0x0000000000680000-0x0000000000D20000-memory.dmp

Filesize
6.6MB

Download
memory/1396-1-0x00000000777B4000-0x00000000777B6000-memory.dmp

Filesize
8KB

Download
memory/1396-2-0x0000000000681000-0x0000000000698000-memory.dmp

Filesize
92KB

Download
memory/1396-3-0x0000000000680000-0x0000000000D20000-memory.dmp

Filesize
6.6MB

Download
memory/1396-4-0x0000000000680000-0x0000000000D20000-memory.dmp

Filesize
6.6MB

Download