lucastealer | 319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749

Analysis

max time kernel
27s
max time network
68s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
25-02-2023 22:26

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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 target process

624 1140 WerFault.exe 319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe

flow	ioc
3	ip-api.com

pid	pid_target	process	target process
624	1140	WerFault.exe	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe

pid	process
1140	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe
1140	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe
1140	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe
1140	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe
1140	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe
1140	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe

description pid process

Token: SeShutdownPrivilege 1140 319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe

description	pid	process
Token: SeShutdownPrivilege	1140	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe

description	pid	process	target process
PID 1140 wrote to memory of 624	1140	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe	WerFault.exe
PID 1140 wrote to memory of 624	1140	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe	WerFault.exe
PID 1140 wrote to memory of 624	1140	319157bf510e966d20d5129f1966ece7cb18c2d3d781a31a95f0af3be5926749.exe	WerFault.exe

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:1140
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1140 -s 1096
  2⤵
  - Program crash
  PID:624

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
5.8MB

MD5
9c717bff827bbb8351875c3643e9ce3b

SHA1
b2059c8c87e4aa9cf5b2b8f185000b154800435d

SHA256
8921d68a59f54a24f0c32f003a6a17e805418badc748696d11d799c22271429f

SHA512
c49ec0f2045117c322ea3ec8ad6e7726f255761687629ff4ac5bf1a0e55aba837b437c55fe2cdf513bf62641c8fbc96c1a0a60e66c47fe36379da793b212d324

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