lucastealer | b1c36bffcefa1ade3384c246959d37b651dffbd10cb7172b7c93a9bfecd29f89

Resubmissions

18-10-2023 09:56

231018-lykxgaed98 10

18-10-2023 09:43

231018-lqbntsed66 10

Analysis

max time kernel
10s
max time network
14s
platform
windows7_x64
resource
win7-20230831-es
resource tags

arch:x64arch:x86image:win7-20230831-eslocale:es-esos:windows7-x64systemwindows
submitted
18-10-2023 09:56

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General

Target

rust-stealer-xss.exe
Size

4.5MB
MD5

3ddf7d19049c63bdfd526de82ca592c1
SHA1

852dddd3a28ee5c6949bba4c76a4bfe116c903ba
SHA256

b1c36bffcefa1ade3384c246959d37b651dffbd10cb7172b7c93a9bfecd29f89
SHA512

7be04fed529a3bcbd490cf10549e1439089ba38cd70f7def6b097656c3f3a9c5bf4809f8ddc4b58430ad72e55a9bd367dc4695affa0017c4e6f391ff3318fadb
SSDEEP

98304:hQDi99hkY8zFbsEqy9wvDC1C/eFFYKkjsDTtqK3+5A:ODi99hgqLCSmkjWd0A

Score

10^/10

lucastealer spyware stealer

Malware Config

Signatures

Luca Stealer
Info stealer written in Rust first seen in July 2022.
stealer lucastealer
Reads user/profile data of web browsers 2 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
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\F:	rust-stealer-xss.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	ip-api.com

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2504	2812	WerFault.exe	27

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2812	rust-stealer-xss.exe
2812	rust-stealer-xss.exe
2812	rust-stealer-xss.exe
2812	rust-stealer-xss.exe
2812	rust-stealer-xss.exe
2812	rust-stealer-xss.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2812	rust-stealer-xss.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2812 wrote to memory of 2504	2812	rust-stealer-xss.exe	30
PID 2812 wrote to memory of 2504	2812	rust-stealer-xss.exe	30
PID 2812 wrote to memory of 2504	2812	rust-stealer-xss.exe	30
PID 2812 wrote to memory of 2504	2812	rust-stealer-xss.exe	30

C:\Users\Admin\AppData\Local\Temp\rust-stealer-xss.exe
"C:\Users\Admin\AppData\Local\Temp\rust-stealer-xss.exe"
1⤵
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2812
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2812 -s 1144
  2⤵
  - Program crash
  PID:2504

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\logscx\sensfiles.zip

Filesize
1.2MB

MD5
eae4aaafcb7072cc4b3959c3c4231597

SHA1
07400795f1ac55d0ece54c84fa2f37602dbd742b

SHA256
9ef7f2d38c3e1c951bf86639d867b9a282bf3a6f82aeff64f0d59a32412a1ac1

SHA512
8792b51e99ade4f5a3e4744c309ef8a7c8255f77eea2d27f85eb966090621da848ef084af30c05ffcbb7a11ddbae4f265cee35719f626053fbc79fe45f71ebe8

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