lucastealer | b1c36bffcefa1ade3384c246959d37b651dffbd10cb7172b7c93a9bfecd29f89

Resubmissions

18-10-2023 09:56

231018-lykxgaed98 10

18-10-2023 09:43

231018-lqbntsed66 10

Analysis

max time kernel
16s
max time network
19s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
18-10-2023 09:43

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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
1852	2432	WerFault.exe	27

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2432	rust-stealer-xss.exe
2432	rust-stealer-xss.exe
2432	rust-stealer-xss.exe
2432	rust-stealer-xss.exe
2432	rust-stealer-xss.exe
2432	rust-stealer-xss.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2432	rust-stealer-xss.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 1852	2432	rust-stealer-xss.exe	30
PID 2432 wrote to memory of 1852	2432	rust-stealer-xss.exe	30
PID 2432 wrote to memory of 1852	2432	rust-stealer-xss.exe	30
PID 2432 wrote to memory of 1852	2432	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:2432
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2432 -s 1120
  2⤵
  - Program crash
  PID:1852

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
2.6MB

MD5
6c72c2a28dc7277b21b86e369bd8677d

SHA1
1fbdab638ef46df29e180707dbd8225f8f90da7b

SHA256
6df7e594eefaf7eb9540083df7b84794d5b8742e78110b8069fb88715a5f6991

SHA512
95e9b9b17350e5bd992ff51a27ce3ff90e458bdc69e42aea27bcc46c9b1f525d40e1fbe4a303de790d7e568b0fbe892ae5469a5fb977be6f388c39b27021b6e7

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