lucastealer | 319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749

Analysis

max time kernel
29s
max time network
54s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
27-02-2023 04:58

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General

Target

319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe
Size

5.7MB
MD5

deb9c6e9c058071ebf52521065a75018
SHA1

d3f54b15504de1a55d26a5753f1254c5c42fadec
SHA256

319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749
SHA512

404d63f29db4b8edf4f5b73442e8e0c4dd58829b57bd2a75149d07acbd105cc9958429231f7f42dfb514824b62c7990d03913fbfd54d2e16273fd406e380be37
SSDEEP

49152:7Zg+YZ4PyxV4maKAUerq93kBis7q9mMts5lfarmNP78xMng+HEvLV+io6B5i5lSy:fFsaAnc6ZcIUk+r

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
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Looks up external IP address via web service 1 IoCs

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

Processes:

flow	ioc
3	ip-api.com

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
1688	1108	WerFault.exe	26

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe

pid	Process
1108	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe
1108	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe
1108	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe
1108	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe
1108	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe
1108	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe

description	pid	Process
Token: SeShutdownPrivilege	1108	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe

description	pid	Process	procid_target
PID 1108 wrote to memory of 1688	1108	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe	29
PID 1108 wrote to memory of 1688	1108	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe	29
PID 1108 wrote to memory of 1688	1108	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe	29

C:\Users\Admin\AppData\Local\Temp\319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe
"C:\Users\Admin\AppData\Local\Temp\319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1108
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1108 -s 1108
  2⤵
  - Program crash
  PID:1688

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
412KB

MD5
f0d4973b6b92279998c5447709c687bc

SHA1
dd80c8a381f9e37604e897b365d98a86dc68baa3

SHA256
ac1d5bcd4a5703049ae9cf63353b8889e217b29c73ff791cce39f05a44be91c9

SHA512
2475e806ea2bb1b9b41a5ab4a599179d7e956ee8fbe7a78ddaaad17bc22976a174a1553a114ad5401533140e3891057f797512c33821f61b0385b606b1c8b9f4

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