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Windows
Analysis Report
CLaYpUL3zw.exe
Overview
General Information
Sample name: | CLaYpUL3zw.exerenamed because original name is a hash value |
Original sample name: | ccf904b9afa2515f1120932e4bd1f148.exe |
Analysis ID: | 1581578 |
MD5: | ccf904b9afa2515f1120932e4bd1f148 |
SHA1: | b7e131f06fd949ed071c745111d5589cd3be7ef9 |
SHA256: | 06fc3e8f951fa3855d4056ea043a8de4d24b78df32f4423402305aa516fd56ff |
Tags: | exeuser-abuse_ch |
Infos: | |
Detection
LummaC
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Search for Antivirus process
Suricata IDS alerts for network traffic
Yara detected LummaC Stealer
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Drops PE files with a suspicious file extension
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
Leaks process information
LummaC encrypted strings found
Machine Learning detection for sample
PE file contains section with special chars
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Query firmware table information (likely to detect VMs)
Sample uses string decryption to hide its real strings
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Tries to evade debugger and weak emulator (self modifying code)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Crypto Currency Wallets
AV process strings found (often used to terminate AV products)
Allocates memory with a write watch (potentially for evading sandboxes)
Checks for debuggers (devices)
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
Checks if the current process is being debugged
Contains capabilities to detect virtual machines
Contains functionality for read data from the clipboard
Contains functionality to block mouse and keyboard input (often used to hinder debugging)
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to check if a window is minimized (may be used to check if an application is visible)
Contains functionality to communicate with device drivers
Contains functionality to dynamically determine API calls
Contains functionality to execute programs as a different user
Contains functionality to launch a process as a different user
Contains functionality to launch a program with higher privileges
Contains functionality to modify clipboard data
Contains functionality to open a port and listen for incoming connection (possibly a backdoor)
Contains functionality to query CPU information (cpuid)
Contains functionality to read the PEB
Contains functionality to read the clipboard data
Contains functionality to retrieve information about pressed keystrokes
Contains functionality to shutdown / reboot the system
Contains functionality to simulate keystroke presses
Contains functionality to simulate mouse events
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Creates files inside the system directory
Detected potential crypto function
Dropped file seen in connection with other malware
Drops PE files
Enables debug privileges
Entry point lies outside standard sections
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
OS version to string mapping found (often used in BOTs)
PE file contains an invalid checksum
PE file contains sections with non-standard names
Potential key logger detected (key state polling based)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Searches for user specific document files
Suricata IDS alerts with low severity for network traffic
Uses 32bit PE files
Uses a known web browser user agent for HTTP communication
Uses code obfuscation techniques (call, push, ret)
Yara detected Credential Stealer
Yara signature match
Classification
- System is w10x64
- CLaYpUL3zw.exe (PID: 6620 cmdline:
"C:\Users\ user\Deskt op\CLaYpUL 3zw.exe" MD5: CCF904B9AFA2515F1120932E4BD1F148) - PasoCattle.exe (PID: 408 cmdline:
"C:\Users\ user\AppDa ta\Local\T emp\PasoCa ttle.exe" MD5: A3E9A86D6EDE94C3C71D1F7EEA537766) - cmd.exe (PID: 1240 cmdline:
"C:\Window s\System32 \cmd.exe" /c move Sy mposium Sy mposium.cm d & Sympos ium.cmd MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - conhost.exe (PID: 6324 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - tasklist.exe (PID: 5136 cmdline:
tasklist MD5: 0A4448B31CE7F83CB7691A2657F330F1) - findstr.exe (PID: 3836 cmdline:
findstr /I "opssvc w rsa" MD5: F1D4BE0E99EC734376FDE474A8D4EA3E) - tasklist.exe (PID: 1680 cmdline:
tasklist MD5: 0A4448B31CE7F83CB7691A2657F330F1) - findstr.exe (PID: 6020 cmdline:
findstr "A vastUI AVG UI bdservi cehost nsW scSvc ekrn SophosHea lth" MD5: F1D4BE0E99EC734376FDE474A8D4EA3E) - cmd.exe (PID: 4568 cmdline:
cmd /c md 768400 MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - extrac32.exe (PID: 2148 cmdline:
extrac32 / Y /E Refle ct MD5: 9472AAB6390E4F1431BAA912FCFF9707) - findstr.exe (PID: 5912 cmdline:
findstr /V "cocks" A rticles MD5: F1D4BE0E99EC734376FDE474A8D4EA3E) - cmd.exe (PID: 1220 cmdline:
cmd /c cop y /b ..\Ma ternity + ..\Beaches + ..\Rat + ..\Promi se + ..\Zo ne + ..\En rolled V MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - Climb.com (PID: 5660 cmdline:
Climb.com V MD5: 62D09F076E6E0240548C2F837536A46A) - choice.exe (PID: 6388 cmdline:
choice /d y /t 5 MD5: FCE0E41C87DC4ABBE976998AD26C27E4) - Set-up.exe (PID: 4352 cmdline:
"C:\Users\ user\AppDa ta\Local\T emp\Set-up .exe" MD5: 2A99036C44C996CEDEB2042D389FE23C)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Lumma Stealer, LummaC2 Stealer | Lumma Stealer (aka LummaC2 Stealer) is an information stealer written in C language that has been available through a Malware-as-a-Service (MaaS) model on Russian-speaking forums since at least August 2022. It is believed to have been developed by the threat actor "Shamel", who goes by the alias "Lumma". Lumma Stealer primarily targets cryptocurrency wallets and two-factor authentication (2FA) browser extensions, before ultimately stealing sensitive information from the victim's machine. Once the targeted data is obtained, it is exfiltrated to a C2 server via HTTP POST requests using the user agent "TeslaBrowser/5.5"." The stealer also features a non-resident loader that is capable of delivering additional payloads via EXE, DLL, and PowerShell. | No Attribution |
{"C2 url": ["hummskitnj.buzz", "scentniej.buzz", "appliacnesot.buzz", "rebuildeso.buzz", "inherineau.buzz", "spuriotis.click", "prisonyfork.buzz", "cashfuzysao.buzz", "screwamusresz.buzz"], "Build id": "5FwhVM--lll"}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_LummaCStealer_3 | Yara detected LummaC Stealer | Joe Security | ||
JoeSecurity_LummaCStealer_2 | Yara detected LummaC Stealer | Joe Security |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
JoeSecurity_LummaCStealer_3 | Yara detected LummaC Stealer | Joe Security | ||
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
Click to see the 2 entries |
Source | Rule | Description | Author | Strings |
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MALWARE_Win_DLInjector04 | Detects downloader / injector | ditekSHen |
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HIPS / PFW / Operating System Protection Evasion |
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Source: | Author: Joe Security: |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-28T09:29:52.671566+0100 | 2028371 | 3 | Unknown Traffic | 192.168.2.5 | 49774 | 172.67.128.184 | 443 | TCP |
2024-12-28T09:29:54.952954+0100 | 2028371 | 3 | Unknown Traffic | 192.168.2.5 | 49781 | 172.67.128.184 | 443 | TCP |
2024-12-28T09:29:57.475683+0100 | 2028371 | 3 | Unknown Traffic | 192.168.2.5 | 49787 | 172.67.128.184 | 443 | TCP |
2024-12-28T09:30:00.115076+0100 | 2028371 | 3 | Unknown Traffic | 192.168.2.5 | 49794 | 172.67.128.184 | 443 | TCP |
2024-12-28T09:30:02.418306+0100 | 2028371 | 3 | Unknown Traffic | 192.168.2.5 | 49800 | 172.67.128.184 | 443 | TCP |
2024-12-28T09:30:05.088798+0100 | 2028371 | 3 | Unknown Traffic | 192.168.2.5 | 49810 | 172.67.128.184 | 443 | TCP |
2024-12-28T09:30:08.149158+0100 | 2028371 | 3 | Unknown Traffic | 192.168.2.5 | 49818 | 172.67.128.184 | 443 | TCP |
2024-12-28T09:30:13.613991+0100 | 2028371 | 3 | Unknown Traffic | 192.168.2.5 | 49830 | 172.67.128.184 | 443 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-28T09:29:53.732328+0100 | 2054653 | 1 | A Network Trojan was detected | 192.168.2.5 | 49774 | 172.67.128.184 | 443 | TCP |
2024-12-28T09:29:55.726467+0100 | 2054653 | 1 | A Network Trojan was detected | 192.168.2.5 | 49781 | 172.67.128.184 | 443 | TCP |
2024-12-28T09:30:14.478972+0100 | 2054653 | 1 | A Network Trojan was detected | 192.168.2.5 | 49830 | 172.67.128.184 | 443 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-28T09:29:53.732328+0100 | 2049836 | 1 | A Network Trojan was detected | 192.168.2.5 | 49774 | 172.67.128.184 | 443 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-28T09:29:55.726467+0100 | 2049812 | 1 | A Network Trojan was detected | 192.168.2.5 | 49781 | 172.67.128.184 | 443 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-28T09:29:58.431227+0100 | 2048094 | 1 | Malware Command and Control Activity Detected | 192.168.2.5 | 49787 | 172.67.128.184 | 443 | TCP |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Avira: |
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Source: | Malware Configuration Extractor: |
Source: | ReversingLabs: |
Source: | Virustotal: | Perma Link | ||
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Source: | Integrated Neural Analysis Model: |
Source: | Joe Sandbox ML: |
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Source: | Binary or memory string: | memstr_9bc950d3-3 |
Source: | Static PE information: |
Source: | HTTPS traffic detected: | ||
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Source: | Code function: | 2_2_00406301 | |
Source: | Code function: | 2_2_00406CC7 | |
Source: | Code function: | 14_2_0055DC54 | |
Source: | Code function: | 14_2_0056A087 | |
Source: | Code function: | 14_2_0056A1E2 | |
Source: | Code function: | 14_2_0055E472 | |
Source: | Code function: | 14_2_0056A570 | |
Source: | Code function: | 14_2_0052C622 | |
Source: | Code function: | 14_2_005666DC | |
Source: | Code function: | 14_2_00567333 | |
Source: | Code function: | 14_2_005673D4 | |
Source: | Code function: | 14_2_0055D921 |
Source: | File opened: | Jump to behavior | ||
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Networking |
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