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Linux
Analysis Report
pftp.elf
Overview
General Information
| Sample name: | pftp.elf |
| Analysis ID: | 1645893 |
| MD5: | d4909b3f1c371e379879bf23baff21b9 |
| SHA1: | f07191a91b1f161643f57069380147a6781cac95 |
| SHA256: | d8f275ca9a18dc5040bc57a7703891aed7129488fe10d5fe8a7c24a4c58b072e |
| Tags: | elfuser-abuse_ch |
| Infos: |  |
Detection
Gafgyt, Mirai
| Score: | 100 |
| Range: | 0 - 100 |
Signatures
Antivirus / Scanner detection for submitted sample
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected Gafgyt
Yara detected Mirai
Connects to many IPs within the same subnet mask (likely port scanning)
Opens /proc/net/* files useful for finding connected devices and routers
Sample deletes itself
Sample scans a subnet
Terminates several processes with shell command 'killall'
Tries to stop the "iptables" service
Uses IRC for communication with a C&C
Detected TCP or UDP traffic on non-standard ports
Enumerates processes within the "proc" file system
Executes commands using a shell command-line interpreter
Executes the "rm" command used to delete files or directories
Executes the "systemctl" command used for controlling the systemd system and service manager
Sample contains strings that are user agent strings indicative of HTTP manipulation
Uses the "uname" system call to query kernel version information (possible evasion)
Yara signature match
Classification
| Joe Sandbox version: | 42.0.0 Malachite |
| Analysis ID: | 1645893 |
| Start date and time: | 2025-03-22 22:41:11 +01:00 |
| Joe Sandbox product: | CloudBasic |
| Overall analysis duration: | 0h 6m 12s |
| Hypervisor based Inspection enabled: | false |
| Report type: | full |
| Cookbook file name: | defaultlinuxfilecookbook.jbs |
| Analysis system description: | Ubuntu Linux 20.04 x64 (Kernel 5.4.0-72, Firefox 91.0, Evince Document Viewer 3.36.10, LibreOffice 6.4.7.2, OpenJDK 11.0.11) |
| Analysis Mode: | default |
| Sample name: | pftp.elf |
| Detection: | MAL |
| Classification: | mal100.spre.troj.evad.linELF@0/1@0/0 |
- Report size exceeded maximum capacity and may have missing network information.
- VT rate limit hit for: http://93.115.172.234/bins.sh;
| Command: | /tmp/pftp.elf |
| PID: | 6231 |
| Exit Code: | 0 |
| Exit Code Info: | |
| Killed: | False |
| Standard Output: | BUILD DONGS BUILD DONGS |
| Standard Error: | sh: 1: history: not found sh: 1: history: not found perl: no process found Failed to stop iptables.service: Unit iptables.service not loaded. |
- system is lnxubuntu20
- pftp.elf New Fork (PID: 6233, Parent: 6231)
- pftp.elf New Fork (PID: 6235, Parent: 6233)
- pftp.elf New Fork (PID: 6242, Parent: 6235)
- pftp.elf New Fork (PID: 6244, Parent: 6235)
- sh New Fork (PID: 6249, Parent: 6244)
- pftp.elf New Fork (PID: 6250, Parent: 6235)
- sh New Fork (PID: 6255, Parent: 6250)
- pftp.elf New Fork (PID: 6256, Parent: 6235)
- pftp.elf New Fork (PID: 6258, Parent: 6235)
- sh New Fork (PID: 6260, Parent: 6258)
- pftp.elf New Fork (PID: 6261, Parent: 6235)
- sh New Fork (PID: 6263, Parent: 6261)
- pftp.elf New Fork (PID: 6264, Parent: 6235)
- pftp.elf New Fork (PID: 6269, Parent: 6235)
- sh New Fork (PID: 6271, Parent: 6269)
- pftp.elf New Fork (PID: 6272, Parent: 6235)
- dash New Fork (PID: 6321, Parent: 4331)
- dash New Fork (PID: 6322, Parent: 4331)
- cleanup
| Name | Description | Attribution | Blogpost URLs | Link |
|---|---|---|---|---|
| Bashlite, Gafgyt | Bashlite is a malware family which infects Linux systems in order to launch distributed denial-of-service attacks (DDoS). Originally it was also known under the name Bashdoor, but this term now refers to the exploit method used by the malware. It has been used to launch attacks of up to 400 Gbps. | No Attribution |
| Name | Description | Attribution | Blogpost URLs | Link |
|---|---|---|---|---|
| Mirai | Mirai is one of the first significant botnets targeting exposed networking devices running Linux. Found in August 2016 by MalwareMustDie, its name means "future" in Japanese. Nowadays it targets a wide range of networked embedded devices such as IP cameras, home routers (many vendors involved), and other IoT devices. Since the source code was published on "Hack Forums" many variants of the Mirai family appeared, infecting mostly home networks all around the world. | No Attribution |
| Source | Rule | Description | Author | Strings |
|---|---|---|---|---|
| JoeSecurity_Gafgyt | Yara detected Gafgyt | Joe Security | ||
| JoeSecurity_Mirai_3 | Yara detected Mirai | Joe Security | ||
| Linux_Trojan_Gafgyt_fb14e81f | unknown | unknown |
|
| Source | Rule | Description | Author | Strings |
|---|---|---|---|---|
| JoeSecurity_Mirai_3 | Yara detected Mirai | Joe Security | ||
| Linux_Trojan_Gafgyt_fb14e81f | unknown | unknown |
| |
| JoeSecurity_Mirai_3 | Yara detected Mirai | Joe Security | ||
| Linux_Trojan_Gafgyt_fb14e81f | unknown | unknown |
|
| Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
|---|---|---|---|---|---|---|---|---|
| 2025-03-22T22:41:59.219615+0100 | 2840333 | 1 | Malware Command and Control Activity Detected | 192.168.2.23 | 57294 | 93.115.172.234 | 6667 | TCP |
| Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
|---|---|---|---|---|---|---|---|---|
| 2025-03-22T22:41:59.509759+0100 | 2839629 | 1 | Malware Command and Control Activity Detected | 93.115.172.234 | 6667 | 192.168.2.23 | 57294 | TCP |
| Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
|---|---|---|---|---|---|---|---|---|
| 2025-03-22T22:41:59.339670+0100 | 2836863 | 1 | A Network Trojan was detected | 93.115.172.234 | 6667 | 192.168.2.23 | 57294 | TCP |
- • AV Detection
- • Spreading
- • Networking
- • System Summary
- • Persistence and Installation Behavior
- • Hooking and other Techniques for Hiding and Protection
- • Malware Analysis System Evasion
- • Stealing of Sensitive Information
- • Remote Access Functionality
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Show All Signature Results
AV Detection |   |
|---|
| Source: | Avira: | ||
| Source: | Malware Configuration Extractor: | ||
| Source: | ReversingLabs: | ||
Spreading | |
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| Source: | Opens: | Jump to behavior | ||
Networking | |
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| Source: | Suricata IDS: | ||
| Source: | Suricata IDS: | ||
| Source: | Suricata IDS: | ||
| Source: | TCP traffic: | ||