lucastealer | 4de0b946d9cf0122688c715d808ebc5cec6f16b1001ed70a0dc7de3745d0a65a

Analysis

max time kernel
42s
max time network
70s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
15-01-2023 06:28

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General

Target

System.exe
Size

6.0MB
MD5

e1d93c10865bb4228c0d4d780fb5ac88
SHA1

233b4cb7cef41898eda51a869ff445c3db529ae4
SHA256

4de0b946d9cf0122688c715d808ebc5cec6f16b1001ed70a0dc7de3745d0a65a
SHA512

de355a07ee2a54d24c8b78a022a95d2021719fd6988057630ab903d6032029095cd8b4fab9318fe07f5571dc7464f128398afb22f02850b582e5e50623b1f84e
SSDEEP

49152:QY3oQWF4WcPg94+K2RjJjtE4HAZrGadSZMRPaThP46IPyIcju8HwQKpOlC6Z+XeP:Q+5Yri4Uaad5Ml0ojeUVbkJA+Axh

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

5 ip-api.com
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1976 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

System.exe

pid process

1132 System.exe
1132 System.exe
1132 System.exe
1132 System.exe
1132 System.exe
1132 System.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

System.exe

description pid process

Token: SeShutdownPrivilege 1132 System.exe

flow	ioc
5	ip-api.com

pid	process
1976	schtasks.exe

pid	process
1132	System.exe
1132	System.exe
1132	System.exe
1132	System.exe
1132	System.exe
1132	System.exe

description	pid	process
Token: SeShutdownPrivilege	1132	System.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

System.execmd.exe

description	pid	process	target process
PID 1132 wrote to memory of 1720	1132	System.exe	cmd.exe
PID 1132 wrote to memory of 1720	1132	System.exe	cmd.exe
PID 1132 wrote to memory of 1720	1132	System.exe	cmd.exe
PID 1720 wrote to memory of 1976	1720	cmd.exe	schtasks.exe
PID 1720 wrote to memory of 1976	1720	cmd.exe	schtasks.exe
PID 1720 wrote to memory of 1976	1720	cmd.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\System.exe
"C:\Users\Admin\AppData\Local\Temp\System.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1132
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c "schtasks /Create /TR C:\Users\Admin\AppData\Roaming\svchost.exe /SC ONLOGON /TN RecordArchive /IT"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1720
- - C:\Windows\system32\schtasks.exe
    schtasks /Create /TR C:\Users\Admin\AppData\Roaming\svchost.exe /SC ONLOGON /TN RecordArchive /IT
    3⤵
    - Creates scheduled task(s)
    PID:1976

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

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

memory/1720-54-0x0000000000000000-mapping.dmp

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memory/1976-55-0x0000000000000000-mapping.dmp

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