stealc | c200ddb7b54f8fa4e3acb6671f5fa0a13d54bd41b978d13e336f0497f46244f3

Analysis

max time kernel
94s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 10:27

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General

Target

stealc_default2.exe
Size

307KB
MD5

68a99cf42959dc6406af26e91d39f523
SHA1

f11db933a83400136dc992820f485e0b73f1b933
SHA256

c200ddb7b54f8fa4e3acb6671f5fa0a13d54bd41b978d13e336f0497f46244f3
SHA512

7342073378d188912b3e7c6be498055ddf48f04c8def8e87c630c69294bcfd0802280babe8f86b88eaed40e983bcf054e527f457bb941c584b6ea54ad0f0aa75
SSDEEP

6144:k0wBiMDYtUokCulxMfpbjnekAoQGZRFsnE7w+Uw3NKR9hU/W9:RwMtUoH35nLP7Fa4wx8KRF9

Score

10^/10

stealc default_valenciga credential_access discovery spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

default_valenciga

http://185.215.113.17

Attributes

url_path
/2fb6c2cc8dce150a.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc
Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
3492	stealc_default2.exe
3492	stealc_default2.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
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

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	stealc_default2.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	stealc_default2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	stealc_default2.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3492	stealc_default2.exe
3492	stealc_default2.exe
3492	stealc_default2.exe
3492	stealc_default2.exe

C:\Users\Admin\AppData\Local\Temp\stealc_default2.exe
"C:\Users\Admin\AppData\Local\Temp\stealc_default2.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3492

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/3492-0-0x0000000000BB0000-0x0000000000E11000-memory.dmp

Filesize
2.4MB

Download
memory/3492-2-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/3492-73-0x0000000000BB0000-0x0000000000E11000-memory.dmp

Filesize
2.4MB

Download