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Linux Analysis Report
na.elf

Overview

General Information

Sample name:	na.elf
Analysis ID:	1544056
MD5:	8ec928a5e02d8af1d373e34b185cc331
SHA1:	404e9caac5aea11a9d338d12f29bef72d640b063
SHA256:	2b3e64c2cfdd2bce87362e9fed7b8d7074d1e4c08abeb750ea63570d48d73b7d
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	72
Range:	0 - 100
Whitelisted:	false

Signatures

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Suricata IDS alerts for network traffic

Machine Learning detection for sample

Sample is packed with UPX

Detected TCP or UDP traffic on non-standard ports

ELF contains segments with high entropy indicating compressed/encrypted content

Executes commands using a shell command-line interpreter

Executes the "rm" command used to delete files or directories

Reads CPU information from /proc indicative of miner or evasive malware

Reads CPU information from /sys indicative of miner or evasive malware

Reads system information from the proc file system

Reads the 'hosts' file potentially containing internal network hosts

Sample contains only a LOAD segment without any section mappings

Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)

Uses the "uname" system call to query kernel version information (possible evasion)

Yara signature match

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1544056
Start date and time:	2024-10-28 19:08:05 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 36s
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:	na.elf
Detection:	MAL
Classification:	mal72.evad.linELF@0/6@3/0

Runtime Messages

Command:	/tmp/na.elf
PID:	6239
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

na.elf (PID: 6239, Parent: 6162, MD5: 8ec928a5e02d8af1d373e34b185cc331) Arguments: /tmp/na.elf

na.elf New Fork (PID: 6240, Parent: 6239)

sh (PID: 6240, Parent: 6239, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: sh -c "sed -i -e '/exit/d' /etc/rc.local>nul 2>nul"

sh New Fork (PID: 6241, Parent: 6240)

sed (PID: 6241, Parent: 6240, MD5: 885062561f66aa1d4af4c54b9e7cc81a) Arguments: sed -i -e /exit/d /etc/rc.local

na.elf New Fork (PID: 6242, Parent: 6239)

sh (PID: 6242, Parent: 6239, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: sh -c "sed -i -e '/^\r\n|\r|\n$/d' /etc/rc.local>nul 2>nul"

sh New Fork (PID: 6243, Parent: 6242)

sed (PID: 6243, Parent: 6242, MD5: 885062561f66aa1d4af4c54b9e7cc81a) Arguments: sed -i -e /^||$/d /etc/rc.local

na.elf New Fork (PID: 6244, Parent: 6239)

sh (PID: 6244, Parent: 6239, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: sh -c "sed -i -e '/na.elf reboot/d' /etc/rc.local>nul 2>nul"

sh New Fork (PID: 6245, Parent: 6244)

sed (PID: 6245, Parent: 6244, MD5: 885062561f66aa1d4af4c54b9e7cc81a) Arguments: sed -i -e "/na.elf reboot/d" /etc/rc.local

na.elf New Fork (PID: 6246, Parent: 6239)

sh (PID: 6246, Parent: 6239, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: sh -c "sed -i -e '2 i/tmp/na.elf reboot' /etc/rc.local>nul 2>nul"

sh New Fork (PID: 6247, Parent: 6246)

sed (PID: 6247, Parent: 6246, MD5: 885062561f66aa1d4af4c54b9e7cc81a) Arguments: sed -i -e "2 i/tmp/na.elf reboot" /etc/rc.local

na.elf New Fork (PID: 6248, Parent: 6239)

sh (PID: 6248, Parent: 6239, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: sh -c "sed -i -e '2 i/tmp/na.elf reboot start' /etc/rc.d/rc.local>nul 2>nul"

sh New Fork (PID: 6249, Parent: 6248)

sed (PID: 6249, Parent: 6248, MD5: 885062561f66aa1d4af4c54b9e7cc81a) Arguments: sed -i -e "2 i/tmp/na.elf reboot start" /etc/rc.d/rc.local

na.elf New Fork (PID: 6250, Parent: 6239)

sh (PID: 6250, Parent: 6239, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: sh -c "sed -i -e '2 i/tmp/na.elf reboot start' /etc/init.d/boot.local>nul 2>nul"

sh New Fork (PID: 6251, Parent: 6250)

sed (PID: 6251, Parent: 6250, MD5: 885062561f66aa1d4af4c54b9e7cc81a) Arguments: sed -i -e "2 i/tmp/na.elf reboot start" /etc/init.d/boot.local

na.elf New Fork (PID: 6252, Parent: 6239)

sh (PID: 6252, Parent: 6239, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: sh -c "rm -rf nul"

sh New Fork (PID: 6253, Parent: 6252)

rm (PID: 6253, Parent: 6252, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -rf nul

na.elf New Fork (PID: 6254, Parent: 6239)

sh (PID: 6254, Parent: 6239, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: sh -c "rm -rf nul 2"

sh New Fork (PID: 6255, Parent: 6254)

rm (PID: 6255, Parent: 6254, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -rf nul 2

na.elf New Fork (PID: 6256, Parent: 6239)

cleanup

Yara Signatures

Memory Dumps

Source	Rule	Description	Author	Strings
6239.1.0000000000400000.00000000005ae000.r-x.sdmp	CN_disclosed_20180208_lsls	Detects malware from disclosed CN malware set	Florian Roth	0x1587fa:$x1: User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0) 0x1588c8:$x1: User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)

Suricata Signatures

ET MALWARE Linux.DDoS Checkin

Timestamp	SID	Severity	Classtype	Source IP	Source Port	Destination IP	Destination Port	Protocol
2024-10-28T19:08:53.524216+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	58990	116.205.177.132	10210	TCP
2024-10-28T19:08:59.364776+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	58992	116.205.177.132	10210	TCP
2024-10-28T19:09:05.323919+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	58994	116.205.177.132	10210	TCP
2024-10-28T19:09:11.031992+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	58996	116.205.177.132	10210	TCP
2024-10-28T19:09:16.741838+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	58998	116.205.177.132	10210	TCP
2024-10-28T19:09:22.428389+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	59000	116.205.177.132	10210	TCP
2024-10-28T19:09:28.334723+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	59004	116.205.177.132	10210	TCP
2024-10-28T19:09:34.009417+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	59006	116.205.177.132	10210	TCP
2024-10-28T19:09:39.750162+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	59008	116.205.177.132	10210	TCP
2024-10-28T19:09:45.435384+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	59010	116.205.177.132	10210	TCP
2024-10-28T19:09:51.113916+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	59012	116.205.177.132	10210	TCP
2024-10-28T19:09:56.804360+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	59014	116.205.177.132	10210	TCP
2024-10-28T19:10:02.479604+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	59018	116.205.177.132	10210	TCP
2024-10-28T19:10:08.214424+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	59020	116.205.177.132	10210	TCP
2024-10-28T19:10:13.903725+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	59022	116.205.177.132	10210	TCP
2024-10-28T19:10:19.604198+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	59024	116.205.177.132	10210	TCP
2024-10-28T19:10:25.303642+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	59026	116.205.177.132	10210	TCP
2024-10-28T19:10:31.276151+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	59030	116.205.177.132	10210	TCP
2024-10-28T19:10:36.978634+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	59032	116.205.177.132	10210	TCP
2024-10-28T19:10:42.673929+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	59034	116.205.177.132	10210	TCP
2024-10-28T19:10:48.357488+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	59036	116.205.177.132	10210	TCP
2024-10-28T19:10:54.067284+0100	2019172	1	Malware Command and Control Activity Detected	192.168.2.23	59038	116.205.177.132	10210	TCP

ET MALWARE Linux/AES.DDoS Sending Real/Fake CPU&BW Info

Timestamp	SID	Severity	Classtype	Source IP	Source Port	Destination IP	Destination Port	Protocol
2024-10-28T19:09:39.821042+0100	2019177	1	A Network Trojan was detected	192.168.2.23	59008	116.205.177.132	10210	TCP
2024-10-28T19:10:48.653568+0100	2019177	1	A Network Trojan was detected	192.168.2.23	59036	116.205.177.132	10210	TCP

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: na.elf

ReversingLabs: Detection: 50%

Machine Learning detection for sample

Source: na.elf

Joe Sandbox ML: detected

Source: /tmp/na.elf (PID: 6256)

Reads CPU info from proc file: /proc/cpuinfo

Jump to behavior

Source: /tmp/na.elf (PID: 6256)

Reads CPU info from /sys: /sys/devices/system/cpu/online

Jump to behavior

Networking

Suricata IDS alerts for network traffic

Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:58998 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:59020 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:59018 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:59006 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:59008 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:59000 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:59030 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:59014 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019177 - Severity 1 - ET MALWARE Linux/AES.DDoS Sending Real/Fake CPU&BW Info : 192.168.2.23:59008 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:59034 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:59036 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:58994 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:58996 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019177 - Severity 1 - ET MALWARE Linux/AES.DDoS Sending Real/Fake CPU&BW Info : 192.168.2.23:59036 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:58992 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:59004 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:58990 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:59022 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:59012 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:59038 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:59024 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:59010 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:59032 -> 116.205.177.132:10210
Source: Network traffic	Suricata IDS: 2019172 - Severity 1 - ET MALWARE Linux.DDoS Checkin : 192.168.2.23:59026 -> 116.205.177.132:10210

Source: global traffic

TCP traffic: 192.168.2.23:58990 -> 116.205.177.132:10210

Source: /tmp/na.elf (PID: 6256)

Reads hosts file: /etc/hosts

Jump to behavior

Source: global traffic	TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global traffic	TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global traffic	TCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80

Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132
Source: unknown	TCP traffic detected without corresponding DNS query: 116.205.177.132

Source: global traffic

DNS traffic detected: DNS query: mhacker.cc

Source: na.elf	String found in binary or memory: http://upx.sf.net
Source: na.elf, 6239.1.0000000000400000.00000000005ae000.r-x.sdmp	String found in binary or memory: https://bugs.launchpad.net/ubuntu/

Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

System Summary

Malicious sample detected (through community Yara rule)

Source: 6239.1.0000000000400000.00000000005ae000.r-x.sdmp, type: MEMORY

Matched rule: Detects malware from disclosed CN malware set Author: Florian Roth

Source: LOAD without section mappings

Program segment: 0x400000

Source: 6239.1.0000000000400000.00000000005ae000.r-x.sdmp, type: MEMORY

Matched rule: CN_disclosed_20180208_lsls date = 2018-02-08, hash1 = 94c6a92984df9ed255f4c644261b01c4e255acbe32ddfd0debe38b558f29a6c9, author = Florian Roth, description = Detects malware from disclosed CN malware set, reference = https://twitter.com/cyberintproject/status/961714165550342146, license = https://creativecommons.org/licenses/by-nc/4.0/

Source: classification engine

Classification label: mal72.evad.linELF@0/6@3/0

Data Obfuscation

Sample is packed with UPX

Source: initial sample	String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample	String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample	String containing UPX found: $Id: UPX 3.91 Copyright (C) 1996-2013 the UPX Team. All Rights Reserved. $

Source: /tmp/na.elf (PID: 6240)	Shell command executed: sh -c "sed -i -e '/exit/d' /etc/rc.local>nul 2>nul"	Jump to behavior
Source: /tmp/na.elf (PID: 6242)	Shell command executed: sh -c "sed -i -e '/^\r\n\|\r\|\n$/d' /etc/rc.local>nul 2>nul"	Jump to behavior
Source: /tmp/na.elf (PID: 6244)	Shell command executed: sh -c "sed -i -e '/na.elf reboot/d' /etc/rc.local>nul 2>nul"	Jump to behavior
Source: /tmp/na.elf (PID: 6246)	Shell command executed: sh -c "sed -i -e '2 i/tmp/na.elf reboot' /etc/rc.local>nul 2>nul"	Jump to behavior
Source: /tmp/na.elf (PID: 6248)	Shell command executed: sh -c "sed -i -e '2 i/tmp/na.elf reboot start' /etc/rc.d/rc.local>nul 2>nul"	Jump to behavior
Source: /tmp/na.elf (PID: 6250)	Shell command executed: sh -c "sed -i -e '2 i/tmp/na.elf reboot start' /etc/init.d/boot.local>nul 2>nul"	Jump to behavior
Source: /tmp/na.elf (PID: 6252)	Shell command executed: sh -c "rm -rf nul"	Jump to behavior
Source: /tmp/na.elf (PID: 6254)	Shell command executed: sh -c "rm -rf nul 2"	Jump to behavior

Source: /bin/sh (PID: 6253)	Rm executable: /usr/bin/rm -> rm -rf nul			Jump to behavior
Source: /bin/sh (PID: 6255)	Rm executable: /usr/bin/rm -> rm -rf nul 2			Jump to behavior

Source: /tmp/na.elf (PID: 6256)	Reads from proc file: /proc/cpuinfo			Jump to behavior
Source: /tmp/na.elf (PID: 6256)	Reads from proc file: /proc/stat			Jump to behavior

Source: /bin/sh (PID: 6241)	Sed executable: /usr/bin/sed -> sed -i -e /exit/d /etc/rc.local	Jump to behavior
Source: /bin/sh (PID: 6243)	Sed executable: /usr/bin/sed -> sed -i -e /^\|\|$/d /etc/rc.local	Jump to behavior
Source: /bin/sh (PID: 6245)	Sed executable: /usr/bin/sed -> sed -i -e "/na.elf reboot/d" /etc/rc.local	Jump to behavior
Source: /bin/sh (PID: 6247)	Sed executable: /usr/bin/sed -> sed -i -e "2 i/tmp/na.elf reboot" /etc/rc.local	Jump to behavior
Source: /bin/sh (PID: 6249)	Sed executable: /usr/bin/sed -> sed -i -e "2 i/tmp/na.elf reboot start" /etc/rc.d/rc.local	Jump to behavior
Source: /bin/sh (PID: 6251)	Sed executable: /usr/bin/sed -> sed -i -e "2 i/tmp/na.elf reboot start" /etc/init.d/boot.local	Jump to behavior

Source: na.elf

Submission file: segment LOAD with 7.9398 entropy (max. 8.0)

Source: /tmp/na.elf (PID: 6256)

Reads CPU info from proc file: /proc/cpuinfo

Jump to behavior

Source: /tmp/na.elf (PID: 6256)

Reads CPU info from /sys: /sys/devices/system/cpu/online

Jump to behavior

Source: /tmp/na.elf (PID: 6239)	Queries kernel information via 'uname':			Jump to behavior
Source: /tmp/na.elf (PID: 6256)	Queries kernel information via 'uname':			Jump to behavior

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	1 Scripting	Valid Accounts	1 Command and Scripting Interpreter	1 Scripting	Path Interception	11 Obfuscated Files or Information	OS Credential Dumping	1 Security Software Discovery	Remote Services	Data from Local System	1 Encrypted Channel	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	1 File Deletion	LSASS Memory	1 File and Directory Discovery	Remote Desktop Protocol	Data from Removable Media	1 Non-Standard Port	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information	Security Account Manager	3 System Information Discovery	SMB/Windows Admin Shares	Data from Network Shared Drive	1 Non-Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact
Employee Names	Virtual Private Server	Local Accounts	Cron	Login Hook	Login Hook	Binary Padding	NTDS	System Network Configuration Discovery	Distributed Component Object Model	Input Capture	2 Application Layer Protocol	Traffic Duplication	Data Destruction

Malware Configuration

⊘No configs have been found

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Number of created Files
Is malicious
Internet

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
na.elf	50%	ReversingLabs	Linux.Trojan.Generic
na.elf	100%	Joe Sandbox ML

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

Source	Detection	Scanner	Label	Link
http://upx.sf.net	0%	URL Reputation	safe

Domains and IPs

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
mhacker.cc	unknown	unknown	false		unknown

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://upx.sf.net	na.elf	true	URL Reputation: safe	unknown
https://bugs.launchpad.net/ubuntu/	na.elf, 6239.1.0000000000400000.00000000005ae000.r-x.sdmp	false		unknown

World Map of Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public IPs

IP	Domain	Country	ASN	ASN Name	Malicious
109.202.202.202	unknown	Switzerland	13030	INIT7CH	false
91.189.91.43	unknown	United Kingdom	41231	CANONICAL-ASGB	false
91.189.91.42	unknown	United Kingdom	41231	CANONICAL-ASGB	false
116.205.177.132	unknown	China	4766	KIXS-AS-KRKoreaTelecomKR	true

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
109.202.202.202	kpLwzBouH4.elf	Get hash	malicious	Unknown	Browse	ch.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox_92.0%2bbuild3-0ubuntu0.20.04.1_amd64.deb
91.189.91.43	arm6.elf	Get hash	malicious	Unknown	Browse
	spc.elf	Get hash	malicious	Unknown	Browse
	sshd.elf	Get hash	malicious	Unknown	Browse
	bot.arm5.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse
	bot.mpsl.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse
	bot.arm7.elf	Get hash	malicious	Mirai, Okiru	Browse
	bot.x86_64.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse
	main_ppc.elf	Get hash	malicious	Mirai	Browse
	main_sh4.elf	Get hash	malicious	Mirai	Browse
	.i.elf	Get hash	malicious	Unknown	Browse
91.189.91.42	arm6.elf	Get hash	malicious	Unknown	Browse
	spc.elf	Get hash	malicious	Unknown	Browse
	sshd.elf	Get hash	malicious	Unknown	Browse
	bot.arm5.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse
	bot.arm5.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse
	bot.mpsl.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse
	bot.arm7.elf	Get hash	malicious	Mirai, Okiru	Browse
	main_arm7.elf	Get hash	malicious	Mirai	Browse
	bot.x86_64.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse
	main_ppc.elf	Get hash	malicious	Mirai	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	spc.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	m68k.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	sshd.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	bot.arm5.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse	91.189.91.42
	bot.arm5.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse	91.189.91.42
	bot.mpsl.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse	91.189.91.42
	bot.arm7.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	main_arm7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	bot.x86_64.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse	91.189.91.42
CANONICAL-ASGB	arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	spc.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	m68k.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	sshd.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	bot.arm5.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse	91.189.91.42
	bot.arm5.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse	91.189.91.42
	bot.mpsl.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse	91.189.91.42
	bot.arm7.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	main_arm7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	bot.x86_64.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse	91.189.91.42
KIXS-AS-KRKoreaTelecomKR	la.bot.mips.elf	Get hash	malicious	Unknown	Browse	14.36.251.36
	la.bot.mipsel.elf	Get hash	malicious	Unknown	Browse	59.10.178.71
	la.bot.powerpc.elf	Get hash	malicious	Unknown	Browse	220.123.173.8
	la.bot.arm5.elf	Get hash	malicious	Unknown	Browse	125.128.56.134
	nklm68k.elf	Get hash	malicious	Unknown	Browse	59.1.116.47
	la.bot.sparc.elf	Get hash	malicious	Unknown	Browse	27.236.164.35
	splm68k.elf	Get hash	malicious	Unknown	Browse	221.156.141.134
	nabmips.elf	Get hash	malicious	Unknown	Browse	115.10.232.16
	splppc.elf	Get hash	malicious	Unknown	Browse	119.208.243.145
	nabsh4.elf	Get hash	malicious	Unknown	Browse	222.121.74.41
INIT7CH	arm6.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	spc.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	sshd.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	bot.arm5.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse	109.202.202.202
	bot.arm5.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse	109.202.202.202
	bot.mpsl.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse	109.202.202.202
	bot.arm7.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	main_arm7.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	bot.x86_64.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse	109.202.202.202
	main_ppc.elf	Get hash	malicious	Mirai	Browse	109.202.202.202

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

/tmp/nul

Download File

Process:	/usr/bin/sed
File Type:	ASCII text
Category:	dropped
Size (bytes):	66
Entropy (8bit):	4.2170704991443975
Encrypted:	false
SSDEEP:	3:buwzecKHRssQGTRRt:buo4xfQORt
MD5:	805B2915B3527FC1C98E1AE1CE8D85B9
SHA1:	6DF8C78EC5CF1FD52339DBF9AD877B68DEB6DDBF
SHA-256:	FB6231DF7E135AE9F856579760B4941123D5C71EC03A2E9E61FC047EBABE296B
SHA-512:	12DA87E23F45198972FBA9EE9648218457A3E1190F16DFDD7E827028D92D29C010EFE421E60C2252896B6955191373166E8DAAC887CD214CE8CDA331142206F1
Malicious:	false
Reputation:	low
Preview:	sed: can't read /etc/init.d/boot.local: No such file or directory.

File type:	ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), statically linked, no section header
Entropy (8bit):	7.93655941091709
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	na.elf
File size:	826'008 bytes
MD5:	8ec928a5e02d8af1d373e34b185cc331
SHA1:	404e9caac5aea11a9d338d12f29bef72d640b063
SHA256:	2b3e64c2cfdd2bce87362e9fed7b8d7074d1e4c08abeb750ea63570d48d73b7d
SHA512:	0b5e725d5ac86a0a16ffe449f4ed963c915011ca5333f0d8b3fcbe96436ee40a199fb4add0d8a1999dbb8d735be30b3c6aa4ac70afec52a99e236fedb2a83ce2
SSDEEP:	12288:EuwNR44JOibwv9+rtzxSE9Ov4iOhMK9GyTzOPXs9uCrlrkbhokvRCg5:EPNzJOiE+zxlOg5M2GynduCrlWCg5
TLSH:	6B0533FA204FBBB7E85458BD6213936026DC8553C7DB252BE4DD0603DDB17522EB22E2
File Content Preview:	.ELF..............>.......I.....@...................@.8...@.......................@.......@....................... .......................O.......O....................... .....P...UPX!.........('..('..................ELF.......>.....@.w7......''8.......).

ELF header
Class:	ELF64
Data:	2's complement, little endian
Version:	1 (current)
Machine:	Advanced Micro Devices X86-64
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - Linux
ABI Version:	0
Entry Point Address:	0x49f288
Flags:	0x0
ELF Header Size:	64
Program Header Offset:	64
Program Header Size:	56
Number of Program Headers:	2
Section Header Offset:	0
Section Header Size:	64
Number of Section Headers:	0
Header String Table Index:	0

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Prog Interpreter	Section Mappings
LOAD	0x0	0x400000	0x400000	0x9fa85	0x9fa85	7.9398	0x5	R E	0x200000
LOAD	0xfe1d8	0x14fe1d8	0x14fe1d8	0x0	0x0	0.0000	0x6	RW	0x200000

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 28, 2024 19:08:53.390899897 CET	43928	443	192.168.2.23	91.189.91.42
Oct 28, 2024 19:08:53.514369011 CET	58990	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:08:53.519932032 CET	10210	58990	116.205.177.132	192.168.2.23
Oct 28, 2024 19:08:53.519996881 CET	58990	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:08:53.524215937 CET	58990	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:08:53.529700994 CET	10210	58990	116.205.177.132	192.168.2.23
Oct 28, 2024 19:08:54.194806099 CET	10210	58990	116.205.177.132	192.168.2.23
Oct 28, 2024 19:08:54.195055008 CET	58990	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:08:58.766309023 CET	42836	443	192.168.2.23	91.189.91.43
Oct 28, 2024 19:08:59.199779034 CET	58992	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:08:59.359292984 CET	10210	58992	116.205.177.132	192.168.2.23
Oct 28, 2024 19:08:59.359451056 CET	58992	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:08:59.364775896 CET	58992	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:08:59.365782976 CET	58992	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:08:59.370213985 CET	10210	58992	116.205.177.132	192.168.2.23
Oct 28, 2024 19:08:59.371234894 CET	10210	58992	116.205.177.132	192.168.2.23
Oct 28, 2024 19:08:59.790137053 CET	42516	80	192.168.2.23	109.202.202.202
Oct 28, 2024 19:09:00.061217070 CET	10210	58992	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:00.061584949 CET	58992	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:05.063343048 CET	58994	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:05.318023920 CET	10210	58994	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:05.318459988 CET	58994	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:05.323919058 CET	58994	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:05.329312086 CET	10210	58994	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:05.425379038 CET	58994	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:05.431025982 CET	10210	58994	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:06.017837048 CET	10210	58994	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:06.018229961 CET	58994	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:11.020091057 CET	58996	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:11.025758028 CET	10210	58996	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:11.025857925 CET	58996	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:11.031991959 CET	58996	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:11.037650108 CET	10210	58996	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:11.494820118 CET	58996	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:11.500638008 CET	10210	58996	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:11.728574038 CET	10210	58996	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:11.728940964 CET	58996	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:15.148318052 CET	43928	443	192.168.2.23	91.189.91.42
Oct 28, 2024 19:09:16.730766058 CET	58998	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:16.736212969 CET	10210	58998	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:16.736300945 CET	58998	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:16.741837978 CET	58998	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:16.747185946 CET	10210	58998	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:17.412173986 CET	10210	58998	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:17.412874937 CET	58998	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:22.415122032 CET	59000	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:22.420902967 CET	10210	59000	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:22.420989990 CET	59000	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:22.428389072 CET	59000	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:22.434006929 CET	10210	59000	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:23.319463968 CET	10210	59000	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:23.319696903 CET	59000	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:23.320967913 CET	10210	59000	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:23.321032047 CET	59000	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:25.386804104 CET	42836	443	192.168.2.23	91.189.91.43
Oct 28, 2024 19:09:28.321461916 CET	59004	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:28.327056885 CET	10210	59004	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:28.327137947 CET	59004	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:28.334722996 CET	59004	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:28.340215921 CET	10210	59004	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:28.996299982 CET	10210	59004	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:28.996829987 CET	59004	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:29.482254028 CET	42516	80	192.168.2.23	109.202.202.202
Oct 28, 2024 19:09:33.998558998 CET	59006	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:34.004163980 CET	10210	59006	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:34.004256010 CET	59006	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:34.009417057 CET	59006	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:34.014965057 CET	10210	59006	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:34.671709061 CET	10210	59006	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:34.672286034 CET	59006	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:39.674166918 CET	59008	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:39.741297960 CET	10210	59008	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:39.741523027 CET	59008	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:39.750161886 CET	59008	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:39.755639076 CET	10210	59008	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:39.821042061 CET	59008	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:39.826572895 CET	10210	59008	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:40.419656992 CET	10210	59008	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:40.420358896 CET	59008	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:45.423295021 CET	59010	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:45.429227114 CET	10210	59010	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:45.429330111 CET	59010	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:45.435384035 CET	59010	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:45.441138029 CET	10210	59010	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:45.895104885 CET	59010	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:45.900976896 CET	10210	59010	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:46.098191977 CET	10210	59010	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:46.098618984 CET	59010	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:51.100936890 CET	59012	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:51.106465101 CET	10210	59012	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:51.106570005 CET	59012	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:51.113915920 CET	59012	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:51.119378090 CET	10210	59012	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:51.786164999 CET	10210	59012	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:51.786794901 CET	59012	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:56.102807999 CET	43928	443	192.168.2.23	91.189.91.42
Oct 28, 2024 19:09:56.790134907 CET	59014	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:56.795950890 CET	10210	59014	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:56.796195030 CET	59014	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:56.804359913 CET	59014	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:09:56.810017109 CET	10210	59014	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:57.465198994 CET	10210	59014	116.205.177.132	192.168.2.23
Oct 28, 2024 19:09:57.465786934 CET	59014	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:02.468507051 CET	59018	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:02.474096060 CET	10210	59018	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:02.474159956 CET	59018	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:02.479604006 CET	59018	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:02.485055923 CET	10210	59018	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:03.196517944 CET	10210	59018	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:03.197071075 CET	59018	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:08.200294971 CET	59020	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:08.206274986 CET	10210	59020	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:08.206620932 CET	59020	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:08.214423895 CET	59020	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:08.220417976 CET	10210	59020	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:08.883922100 CET	10210	59020	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:08.884491920 CET	59020	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:13.889028072 CET	59022	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:13.894695044 CET	10210	59022	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:13.894975901 CET	59022	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:13.903724909 CET	59022	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:13.909456015 CET	10210	59022	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:14.249600887 CET	59022	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:14.256397009 CET	10210	59022	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:14.579232931 CET	10210	59022	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:14.579773903 CET	59022	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:19.583674908 CET	59024	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:19.593811989 CET	10210	59024	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:19.593993902 CET	59024	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:19.604197979 CET	59024	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:19.610368967 CET	10210	59024	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:20.285211086 CET	10210	59024	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:20.285731077 CET	59024	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:25.290224075 CET	59026	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:25.296160936 CET	10210	59026	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:25.296508074 CET	59026	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:25.303642035 CET	59026	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:25.309339046 CET	10210	59026	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:25.964582920 CET	10210	59026	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:25.964837074 CET	59026	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:31.264045000 CET	59030	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:31.269602060 CET	10210	59030	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:31.269722939 CET	59030	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:31.276150942 CET	59030	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:31.282026052 CET	10210	59030	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:31.965311050 CET	10210	59030	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:31.965795040 CET	59030	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:36.967328072 CET	59032	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:36.972882032 CET	10210	59032	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:36.973027945 CET	59032	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:36.978634119 CET	59032	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:36.984055042 CET	10210	59032	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:37.660682917 CET	10210	59032	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:37.660877943 CET	59032	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:42.661947966 CET	59034	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:42.667562962 CET	10210	59034	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:42.667619944 CET	59034	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:42.673928976 CET	59034	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:42.679420948 CET	10210	59034	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:43.340625048 CET	10210	59034	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:43.341028929 CET	59034	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:48.342981100 CET	59036	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:48.348933935 CET	10210	59036	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:48.349037886 CET	59036	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:48.357487917 CET	59036	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:48.363123894 CET	10210	59036	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:48.653568029 CET	59036	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:48.659395933 CET	10210	59036	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:49.052956104 CET	10210	59036	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:49.053232908 CET	59036	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:54.054936886 CET	59038	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:54.061269045 CET	10210	59038	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:54.061387062 CET	59038	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:54.067284107 CET	59038	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:54.072906017 CET	10210	59038	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:54.726291895 CET	59038	10210	192.168.2.23	116.205.177.132
Oct 28, 2024 19:10:54.731914997 CET	10210	59038	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:54.770272017 CET	10210	59038	116.205.177.132	192.168.2.23
Oct 28, 2024 19:10:54.770452976 CET	59038	10210	192.168.2.23	116.205.177.132

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 28, 2024 19:09:23.294143915 CET	43591	53	192.168.2.23	1.1.1.1
Oct 28, 2024 19:09:24.111072063 CET	53	43591	1.1.1.1	192.168.2.23
Oct 28, 2024 19:09:57.117311001 CET	43183	53	192.168.2.23	1.1.1.1
Oct 28, 2024 19:09:57.563766003 CET	53	43183	1.1.1.1	192.168.2.23
Oct 28, 2024 19:10:30.568907022 CET	37284	53	192.168.2.23	1.1.1.1
Oct 28, 2024 19:10:31.262249947 CET	53	37284	1.1.1.1	192.168.2.23

Start time (UTC):	18:08:51
Start date (UTC):	28/10/2024
Path:	/tmp/na.elf
Arguments:	/tmp/na.elf
File size:	826008 bytes
MD5 hash:	8ec928a5e02d8af1d373e34b185cc331

Start time (UTC):	18:08:52
Start date (UTC):	28/10/2024
Path:	/usr/bin/sed
Arguments:	sed -i -e /exit/d /etc/rc.local
File size:	121288 bytes
MD5 hash:	885062561f66aa1d4af4c54b9e7cc81a

Description:	This technique has been deprecated. Please use Command and Scripting Interpreter where appropriate.
Tactics:	Defense Evasion, Execution
Data Sources:
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries. These interfaces and languages provide ways of interacting with computer systems and are a common feature across many different platforms. Most systems come with some built-in command-line interface and scripting capabilities, for example, macOS and Linux distributions include some flavor of Unix Shell while Windows installations include the Windows Command Shell and PowerShell .
Tactics:	Execution
Data Sources:	Command: Command Execution, Module: Module Load, Process: Process Creation, Process: Process Metadata, Script: Script Execution
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Network, Office 365, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit. This is common behavior that can be used across different platforms and the network to evade defenses.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Creation, File: File Metadata, Module: Module Load, Process: OS API Execution, Process: Process Creation, Script: Script Execution, WMI: WMI Creation, Windows Registry: Windows Registry Key Creation
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary (ex: Ingress Tool Transfer ) may leave traces to indicate to what was done within a network and how. Removal of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary's footprint.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Deletion
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system. Adversaries may use the information from File and Directory Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	IaaS, Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using a protocol and port pairing that are typically not associated. For example, HTTPS over port 8088or port 587as opposed to the traditional port 443. Adversaries may make changes to the standard port used by a protocol to bypass filtering or muddle analysis/parsing of network data.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using OSI application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report na.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Yara Signatures

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Bitcoin Miner

Networking

System Summary

Data Obfuscation

Persistence and Installation Behavior

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

URLs from Memory and Binaries

World Map of Contacted IPs

Public IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

/tmp/nul

Static File Info

General

Static ELF Info

ELF header

Program Segments

Network Behavior

Suricata IDS Alerts

Network Port Distribution

TCP Packets

UDP Packets

DNS Queries

System Behavior

Analysis Process: na.elf PID: 6239, Parent PID: 6162

General

Chronological Activities

Analysis Process: na.elf PID: 6240, Parent PID: 6239

General

Chronological Activities

Analysis Process: sh PID: 6240, Parent PID: 6239

General

Chronological Activities

Analysis Process: sh PID: 6241, Parent PID: 6240

General

Chronological Activities

Analysis Process: sed PID: 6241, Parent PID: 6240

General

Chronological Activities

Analysis Process: na.elf PID: 6242, Parent PID: 6239

General

Chronological Activities

Linux Analysis Report
na.elf