lucastealer | 52b49593cbcc54f429acc71458e2c0b1a1a120ba97566ca212a5890bb6f57f60

Analysis

max time kernel
150s
max time network
155s
platform
windows11-21h2_x64
resource
win11-20240319-en
resource tags

arch:x64arch:x86image:win11-20240319-enlocale:en-usos:windows11-21h2-x64system
submitted
29-03-2024 19:25

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General

Target

Remcos-RAT-2022-main.zip
Size

6.2MB
MD5

0f9f51e0ead01237835ff0b282f4a64d
SHA1

e8b17f04903a949e62829e170e304197f0a7aa4c
SHA256

52b49593cbcc54f429acc71458e2c0b1a1a120ba97566ca212a5890bb6f57f60
SHA512

432468d81970396d68f76b43118d8eafc89a7065eccb1f5353de214ec98987938e7cdf8d8a8940e2d19f68825a78f0f20af02d7da708dd4d7f2c6a6ed29a5ba8
SSDEEP

196608:k3uWGcLxB07EwdVWexixm0dSIl9LtEF1XrZPXIX8u6p:PRZdV2cmSacF1NPX0x+

Score

10^/10

lucastealer spyware stealer upx

Malware Config

Signatures

Luca Stealer
Info stealer written in Rust first seen in July 2022.
stealer lucastealer

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/4572-0-0x00007FF6461C0000-0x00007FF647B04000-memory.dmp	upx
behavioral1/memory/4572-28-0x00007FF6461C0000-0x00007FF647B04000-memory.dmp	upx

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

Processes:

Remcos Professional.exe

description ioc process

File opened (read-only) \??\F: Remcos Professional.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

2 discord.com
7 discord.com
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

2 ip-api.com

description	ioc	process
File opened (read-only)	\??\F:	Remcos Professional.exe

flow	ioc
2	discord.com
7	discord.com

flow	ioc
2	ip-api.com

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

Remcos Professional.exe

pid	process
4572	Remcos Professional.exe
4572	Remcos Professional.exe
4572	Remcos Professional.exe
4572	Remcos Professional.exe
4572	Remcos Professional.exe
4572	Remcos Professional.exe

C:\Windows\Explorer.exe
C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\Remcos-RAT-2022-main.zip
1⤵
PID:3448

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4688

C:\Users\Admin\Documents\Remcos-RAT-2022-main\Remcos-RAT-2022-main\Remcos Professional.exe
"C:\Users\Admin\Documents\Remcos-RAT-2022-main\Remcos-RAT-2022-main\Remcos Professional.exe"
1⤵
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
PID:4572

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
3.5MB

MD5
37c9dc9d0ad7341ad74876464bf99322

SHA1
0ada1a941696f1db63c142f0820b7aeebd60bf1a

SHA256
0e86f63fe35cafee646833593bbbbdde91f30ca9db7d9996efbfe3d645820e83

SHA512
1a072ad1a8232723d182780569dd901c70a1f863fbcd2f3629d3a6f94bb4a69a21b645e495831a369c8b3dbaa39ceead76c734802dc045ede503f56638f2da2a

Download Submit
memory/4572-0-0x00007FF6461C0000-0x00007FF647B04000-memory.dmp

Filesize
25.3MB

Download
memory/4572-28-0x00007FF6461C0000-0x00007FF647B04000-memory.dmp

Filesize
25.3MB

Download