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Linux Analysis Report
na.elf

Overview

General Information

Sample name:	na.elf
Analysis ID:	1532166
MD5:	cb296a2efcf53a306c9dca3c00286960
SHA1:	28149708a3f5fb4fbb9786b2cf363955caee250b
SHA256:	fe86b4e35709b01f1c426789a9a46ef9cadf3f486e7e7beefe59587cc739291c
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	76
Range:	0 - 100
Whitelisted:	false

Signatures

Antivirus / Scanner detection for submitted sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected Mirai

Sample reads /proc/mounts (often used for finding a writable filesystem)

Enumerates processes within the "proc" file system

Reads system information from the proc file system

Sample contains strings that are user agent strings indicative of HTTP manipulation

Sample has stripped symbol table

Sample listens on a socket

Sample tries to kill a process (SIGKILL)

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:	1532166
Start date and time:	2024-10-12 17:20:51 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 5m 10s
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:	mal76.troj.linELF@0/1@0/0

Warnings

Skipping network analysis since amount of network traffic is too extensive

Runtime Messages

Command:	/tmp/na.elf
PID:	5477
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	eshay
Standard Error:

Process Tree

system is lnxubuntu20

na.elf (PID: 5477, Parent: 5395, MD5: ae65271c943d3451b7f026d1fadccea6) Arguments: /tmp/na.elf

na.elf New Fork (PID: 5480, Parent: 5477)

na.elf New Fork (PID: 5481, Parent: 5477)

na.elf New Fork (PID: 5504, Parent: 5477)

na.elf New Fork (PID: 5512, Parent: 5504)

na.elf New Fork (PID: 5540, Parent: 5512)

na.elf New Fork (PID: 5671, Parent: 5504)

na.elf New Fork (PID: 5673, Parent: 5671)

gnome-session-binary New Fork (PID: 5597, Parent: 1588)

sh (PID: 5597, Parent: 1588, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: /bin/sh -e -u -c "export GIO_LAUNCHED_DESKTOP_FILE_PID=$$; exec \"$@\"" sh /usr/bin/gnome-shell

gnome-shell (PID: 5597, Parent: 1588, MD5: da7a257239677622fe4b3a65972c9e87) Arguments: /usr/bin/gnome-shell

gnome-session-binary New Fork (PID: 5600, Parent: 1588)

sh (PID: 5600, Parent: 1588, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: /bin/sh -e -u -c "export GIO_LAUNCHED_DESKTOP_FILE_PID=$$; exec \"$@\"" sh /usr/libexec/gsd-sharing

gsd-sharing (PID: 5600, Parent: 1588, MD5: e29d9025d98590fbb69f89fdbd4438b3) Arguments: /usr/libexec/gsd-sharing

gdm3 New Fork (PID: 5603, Parent: 1400)

Default (PID: 5603, Parent: 1400, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: /etc/gdm3/PrimeOff/Default

gdm3 New Fork (PID: 5620, Parent: 1400)

Default (PID: 5620, Parent: 1400, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: /etc/gdm3/PrimeOff/Default

systemd New Fork (PID: 5626, Parent: 1)

systemd-user-runtime-dir (PID: 5626, Parent: 1, MD5: d55f4b0847f88131dbcfb07435178e54) Arguments: /lib/systemd/systemd-user-runtime-dir stop 127

cleanup

Malware Threat Intel

Provided by

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	http://osint.bambenekconsulting.com/feeds/ http://www.simonroses.com/2016/10/mirai-ddos-botnet-source-code-binary-analysis/ https://blog.malwaremustdie.org/2020/02/mmd-0065-2021-linuxmirai-fbot-re.html https://blog.netlab.360.com/another-lilin-dvr-0-day-being-used-to-spread-mirai-en/ https://blog.netlab.360.com/mirai_ptea-botnet-is-exploiting-undisclosed-kguard-dvr-vulnerability-en/	https://malpedia.caad.fkie.fraunhofer.de/details/elf.mirai

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
na.elf	JoeSecurity_Mirai_5	Yara detected Mirai	Joe Security
na.elf	MAL_ELF_LNX_Mirai_Oct10_2	Detects ELF malware Mirai related	Florian Roth	0xff10:$c01: 50 4F 53 54 20 2F 63 64 6E 2D 63 67 69 2F 00 00 20 48 54 54 50 2F 31 2E 31 0D 0A 55 73 65 72 2D 41 67 65 6E 74 3A 20 00 0D 0A 48 6F 73 74 3A

Memory Dumps

Source	Rule	Description	Author	Strings
5673.1.00007f59dc001000.00007f59dc013000.r-x.sdmp	JoeSecurity_Mirai_5	Yara detected Mirai	Joe Security
5673.1.00007f59dc001000.00007f59dc013000.r-x.sdmp	MAL_ELF_LNX_Mirai_Oct10_2	Detects ELF malware Mirai related	Florian Roth	0xff10:$c01: 50 4F 53 54 20 2F 63 64 6E 2D 63 67 69 2F 00 00 20 48 54 54 50 2F 31 2E 31 0D 0A 55 73 65 72 2D 41 67 65 6E 74 3A 20 00 0D 0A 48 6F 73 74 3A
5671.1.00007f59dc001000.00007f59dc013000.r-x.sdmp	JoeSecurity_Mirai_5	Yara detected Mirai	Joe Security
5671.1.00007f59dc001000.00007f59dc013000.r-x.sdmp	MAL_ELF_LNX_Mirai_Oct10_2	Detects ELF malware Mirai related	Florian Roth	0xff10:$c01: 50 4F 53 54 20 2F 63 64 6E 2D 63 67 69 2F 00 00 20 48 54 54 50 2F 31 2E 31 0D 0A 55 73 65 72 2D 41 67 65 6E 74 3A 20 00 0D 0A 48 6F 73 74 3A
5477.1.00007f59dc001000.00007f59dc013000.r-x.sdmp	JoeSecurity_Mirai_5	Yara detected Mirai	Joe Security
5477.1.00007f59dc001000.00007f59dc013000.r-x.sdmp	MAL_ELF_LNX_Mirai_Oct10_2	Detects ELF malware Mirai related	Florian Roth	0xff10:$c01: 50 4F 53 54 20 2F 63 64 6E 2D 63 67 69 2F 00 00 20 48 54 54 50 2F 31 2E 31 0D 0A 55 73 65 72 2D 41 67 65 6E 74 3A 20 00 0D 0A 48 6F 73 74 3A
5540.1.00007f59dc001000.00007f59dc013000.r-x.sdmp	JoeSecurity_Mirai_5	Yara detected Mirai	Joe Security
5540.1.00007f59dc001000.00007f59dc013000.r-x.sdmp	MAL_ELF_LNX_Mirai_Oct10_2	Detects ELF malware Mirai related	Florian Roth	0xff10:$c01: 50 4F 53 54 20 2F 63 64 6E 2D 63 67 69 2F 00 00 20 48 54 54 50 2F 31 2E 31 0D 0A 55 73 65 72 2D 41 67 65 6E 74 3A 20 00 0D 0A 48 6F 73 74 3A
Click to see the 3 entries

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: na.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: na.elf

ReversingLabs: Detection: 26%

Source: /tmp/na.elf (PID: 5477)

Socket: 127.0.0.1:33337

Jump to behavior

System Summary

Malicious sample detected (through community Yara rule)

Source: na.elf, type: SAMPLE	Matched rule: Detects ELF malware Mirai related Author: Florian Roth
Source: 5673.1.00007f59dc001000.00007f59dc013000.r-x.sdmp, type: MEMORY	Matched rule: Detects ELF malware Mirai related Author: Florian Roth
Source: 5671.1.00007f59dc001000.00007f59dc013000.r-x.sdmp, type: MEMORY	Matched rule: Detects ELF malware Mirai related Author: Florian Roth
Source: 5477.1.00007f59dc001000.00007f59dc013000.r-x.sdmp, type: MEMORY	Matched rule: Detects ELF malware Mirai related Author: Florian Roth
Source: 5540.1.00007f59dc001000.00007f59dc013000.r-x.sdmp, type: MEMORY	Matched rule: Detects ELF malware Mirai related Author: Florian Roth

Source: ELF static info symbol of initial sample

.symtab present: no

Source: /tmp/na.elf (PID: 5480)	SIGKILL sent: pid: 1691, result: successful	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	SIGKILL sent: pid: 1866, result: successful	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	SIGKILL sent: pid: 5597, result: successful	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	SIGKILL sent: pid: 5600, result: successful	Jump to behavior
Source: /tmp/na.elf (PID: 5673)	SIGKILL sent: pid: 5671, result: successful	Jump to behavior

Source: na.elf, type: SAMPLE	Matched rule: MAL_ELF_LNX_Mirai_Oct10_2 date = 2018-10-27, hash1 = fa0018e75f503f9748a5de0d14d4358db234f65e28c31c8d5878cc58807081c9, author = Florian Roth, description = Detects ELF malware Mirai related, reference = Internal Research
Source: 5673.1.00007f59dc001000.00007f59dc013000.r-x.sdmp, type: MEMORY	Matched rule: MAL_ELF_LNX_Mirai_Oct10_2 date = 2018-10-27, hash1 = fa0018e75f503f9748a5de0d14d4358db234f65e28c31c8d5878cc58807081c9, author = Florian Roth, description = Detects ELF malware Mirai related, reference = Internal Research
Source: 5671.1.00007f59dc001000.00007f59dc013000.r-x.sdmp, type: MEMORY	Matched rule: MAL_ELF_LNX_Mirai_Oct10_2 date = 2018-10-27, hash1 = fa0018e75f503f9748a5de0d14d4358db234f65e28c31c8d5878cc58807081c9, author = Florian Roth, description = Detects ELF malware Mirai related, reference = Internal Research
Source: 5477.1.00007f59dc001000.00007f59dc013000.r-x.sdmp, type: MEMORY	Matched rule: MAL_ELF_LNX_Mirai_Oct10_2 date = 2018-10-27, hash1 = fa0018e75f503f9748a5de0d14d4358db234f65e28c31c8d5878cc58807081c9, author = Florian Roth, description = Detects ELF malware Mirai related, reference = Internal Research
Source: 5540.1.00007f59dc001000.00007f59dc013000.r-x.sdmp, type: MEMORY	Matched rule: MAL_ELF_LNX_Mirai_Oct10_2 date = 2018-10-27, hash1 = fa0018e75f503f9748a5de0d14d4358db234f65e28c31c8d5878cc58807081c9, author = Florian Roth, description = Detects ELF malware Mirai related, reference = Internal Research

Source: classification engine

Classification label: mal76.troj.linELF@0/1@0/0

Persistence and Installation Behavior

Sample reads /proc/mounts (often used for finding a writable filesystem)

Source: /tmp/na.elf (PID: 5477)

File: /proc/5477/mounts

Jump to behavior

Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5540/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3122/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3117/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3114/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3631/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5655/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5656/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5657/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/914/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5539/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/917/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3134/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3375/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3132/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3095/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1745/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1866/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1588/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/884/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1982/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/765/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3246/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/767/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/800/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1906/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/802/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/803/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1748/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3420/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1482/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/490/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1480/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1755/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1875/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/2964/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3413/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1751/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1872/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/2961/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1475/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/778/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5313/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/936/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/816/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1879/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5573/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5574/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5575/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5454/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5576/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5455/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1891/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3310/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3153/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/780/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/660/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1921/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5607/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5608/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/783/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1765/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5609/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/2974/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1400/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1884/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3424/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/2972/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3147/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/2970/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1881/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3146/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3300/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5600/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1805/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1925/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1804/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5603/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5604/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5605/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3429/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5606/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5580/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5581/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5582/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5583/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5584/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5585/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5586/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5587/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3442/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3165/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3164/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3163/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3162/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/790/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3161/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/792/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5618/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/793/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/5619/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1930/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/795/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/3315/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5480)	File opened: /proc/1411/cmdline	Jump to behavior

Source: /tmp/na.elf (PID: 5540)

Reads from proc file: /proc/stat

Jump to behavior

Source: /tmp/na.elf (PID: 5477)

Queries kernel information via 'uname':

Jump to behavior

Source: na.elf, 5477.1.0000560471340000.00005604713f0000.rw-.sdmp, na.elf, 5540.1.0000560471340000.00005604713f0000.rw-.sdmp, na.elf, 5671.1.0000560471340000.00005604713f0000.rw-.sdmp, na.elf, 5673.1.0000560471340000.00005604713f0000.rw-.sdmp	Binary or memory string: !/etc/qemu-binfmt/ppc1/usr/libexec/gsd-print-notifications1/proc/109/exe
Source: na.elf, 5673.1.0000560471340000.00005604713f0000.rw-.sdmp	Binary or memory string: /usr/bin/vmtoolsd
Source: na.elf, 5477.1.00007ffc67652000.00007ffc67673000.rw-.sdmp, na.elf, 5540.1.00007ffc67652000.00007ffc67673000.rw-.sdmp, na.elf, 5671.1.00007ffc67652000.00007ffc67673000.rw-.sdmp, na.elf, 5673.1.00007ffc67652000.00007ffc67673000.rw-.sdmp	Binary or memory string: %.x86_64/usr/bin/qemu-ppc/tmp/na.elfSUDO_USER=saturninoPATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/binDISPLAY=:1.0XAUTHORITY=/run/user/1000/gdm/XauthoritySUDO_UID=1000TERM=xterm-256colorCOLORTERM=truecolorLOGNAME=rootUSER=rootLANG=en_US.UTF-8SUDO_COMMAND=/bin/bashHOME=/rootMAIL=/var/mail/rootSUDO_GID=1000SHELL=/bin/bash/tmp/na.elf
Source: na.elf, 5477.1.0000560471340000.00005604713f0000.rw-.sdmp, na.elf, 5540.1.0000560471340000.00005604713f0000.rw-.sdmp, na.elf, 5671.1.0000560471340000.00005604713f0000.rw-.sdmp, na.elf, 5673.1.0000560471340000.00005604713f0000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmtP
Source: na.elf, 5477.1.0000560471340000.00005604713f0000.rw-.sdmp, na.elf, 5540.1.0000560471340000.00005604713f0000.rw-.sdmp, na.elf, 5671.1.0000560471340000.00005604713f0000.rw-.sdmp, na.elf, 5673.1.0000560471340000.00005604713f0000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/ppc
Source: na.elf, 5673.1.0000560471340000.00005604713f0000.rw-.sdmp	Binary or memory string: !/proc/765/exe0!/proc/418/exe1/proc/1320/exe/ppc/ro10!/usr/bin/vmtoolsd!/proc/419/exe1/usr/libexec/gsd-printer
Source: na.elf, 5477.1.00007ffc67652000.00007ffc67673000.rw-.sdmp, na.elf, 5540.1.00007ffc67652000.00007ffc67673000.rw-.sdmp, na.elf, 5671.1.00007ffc67652000.00007ffc67673000.rw-.sdmp, na.elf, 5673.1.00007ffc67652000.00007ffc67673000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-ppc
Source: na.elf, 5477.1.0000560471340000.00005604713f0000.rw-.sdmp, na.elf, 5540.1.0000560471340000.00005604713f0000.rw-.sdmp, na.elf, 5671.1.0000560471340000.00005604713f0000.rw-.sdmp, na.elf, 5673.1.0000560471340000.00005604713f0000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmtP@/usr/libexec/gvfs-udisks2-volume-monitorQ@

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: na.elf, type: SAMPLE
Source: Yara match	File source: 5673.1.00007f59dc001000.00007f59dc013000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 5671.1.00007f59dc001000.00007f59dc013000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 5477.1.00007f59dc001000.00007f59dc013000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 5540.1.00007f59dc001000.00007f59dc013000.r-x.sdmp, type: MEMORY

Source: Initial sample	User agent string found: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36
Source: Initial sample	User agent string found: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36
Source: Initial sample	User agent string found: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36
Source: Initial sample	User agent string found: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36
Source: Initial sample	User agent string found: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/601.7.7 (KHTML, like Gecko) Version/9.1.2 Safari/601.7.7

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: na.elf, type: SAMPLE
Source: Yara match	File source: 5673.1.00007f59dc001000.00007f59dc013000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 5671.1.00007f59dc001000.00007f59dc013000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 5477.1.00007f59dc001000.00007f59dc013000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 5540.1.00007f59dc001000.00007f59dc013000.r-x.sdmp, type: MEMORY

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	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	Path Interception	Path Interception	Direct Volume Access	1 OS Credential Dumping	11 Security Software Discovery	Remote Services	Data from Local System	1 Data Obfuscation	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	Rootkit	LSASS Memory	1 File and Directory Discovery	Remote Desktop Protocol	Data from Removable Media	Junk Data	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	1 System Information Discovery	SMB/Windows Admin Shares	Data from Network Shared Drive	Steganography	Automated Exfiltration	Data Encrypted for Impact

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	26%	ReversingLabs	Linux.Backdoor.Mirai
na.elf	100%	Avira	EXP/ELF.Agent.J.14

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

World Map of Contacted IPs

⊘No contacted IP infos

Joe Sandbox View / Context

IPs

⊘No context

Domains

⊘No context

ASNs

⊘No context

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

/run/user/127/dconf/user

Download File

Process:	/usr/libexec/gsd-sharing
File Type:	very short file (no magic)
Category:	dropped
Size (bytes):	1
Entropy (8bit):	0.0
Encrypted:	false
SSDEEP:	3::
MD5:	93B885ADFE0DA089CDF634904FD59F71
SHA1:	5BA93C9DB0CFF93F52B521D7420E43F6EDA2784F
SHA-256:	6E340B9CFFB37A989CA544E6BB780A2C78901D3FB33738768511A30617AFA01D
SHA-512:	B8244D028981D693AF7B456AF8EFA4CAD63D282E19FF14942C246E50D9351D22704A802A71C3580B6370DE4CEB293C324A8423342557D4E5C38438F0E36910EE
Malicious:	false
Reputation:	high, very likely benign file
Preview:	.

Static File Info

General

File type:	ELF 32-bit MSB executable, PowerPC or cisco 4500, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.219653386731794
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	na.elf
File size:	73'712 bytes
MD5:	cb296a2efcf53a306c9dca3c00286960
SHA1:	28149708a3f5fb4fbb9786b2cf363955caee250b
SHA256:	fe86b4e35709b01f1c426789a9a46ef9cadf3f486e7e7beefe59587cc739291c
SHA512:	6474591c62f2fb300e58ccc22ebf9031df6ddbb602b067baa08f13ac0940d4db3618840dae2762c48c25f70e2db4ca2b8e4c62825c39167766c898c24f3aea73
SSDEEP:	1536:juNy0xR5XBWkcM5ebKNwvV6eNqq0BwXBA1aQDv:8tP5X8hM5lNc0eN0mC1Vv
TLSH:	75733B42B31C0843D2A31EF4263B27E1D7AAAAD232E4F748350F9B4991B1D379585EDD
File Content Preview:	.ELF...........................4.........4. ...(..........................................................5\........dt.Q.............................!..\|......$H...H......$8!. \|...N.. .!..\|.......?.............../...@..\?........+../...A..$8...})......N..

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, big endian
Version:	1 (current)
Machine:	PowerPC
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x100001f0
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	73192
Section Header Size:	40
Number of Section Headers:	13
Header String Table Index:	12

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x10000094	0x94	0x24	0x0	0x6	AX	4
.text	PROGBITS	0x100000b8	0xb8	0xfc00	0x0	0x6	AX	4
.fini	PROGBITS	0x1000fcb8	0xfcb8	0x20	0x0	0x6	AX	4
.rodata	PROGBITS	0x1000fcd8	0xfcd8	0x1d10	0x0	0x2	A	8
.ctors	PROGBITS	0x100219ec	0x119ec	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x100219f4	0x119f4	0x8	0x0	0x3	WA	4
.got2	PROGBITS	0x10021a00	0x11a00	0xc	0x0	0x3	WA	1
.data	PROGBITS	0x10021a10	0x11a10	0x33c	0x0	0x3	WA	8
.sdata	PROGBITS	0x10021d4c	0x11d4c	0x48	0x0	0x3	WA	4
.sbss	NOBITS	0x10021d94	0x11d94	0x7c	0x0	0x3	WA	4
.bss	NOBITS	0x10021e10	0x11d94	0x3138	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0x11d94	0x51	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x10000000	0x10000000	0x119e8	0x119e8	6.2629	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x119ec	0x100219ec	0x100219ec	0x3a8	0x355c	3.0197	0x6	RW	0x10000	.ctors .dtors .got2 .data .sdata .sbss .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

⊘Skipped network analysis since the amount of network traffic is too extensive. Please download the PCAP and check manually.

System Behavior

Analysis Process: na.elf PID: 5477, Parent PID: 5395

General

Start time (UTC):	15:21:46
Start date (UTC):	12/10/2024
Path:	/tmp/na.elf
Arguments:	/tmp/na.elf
File size:	5388968 bytes
MD5 hash:	ae65271c943d3451b7f026d1fadccea6

Chronological Activities

Analysis Process: na.elf PID: 5480, Parent PID: 5477

General

Start time (UTC):	15:21:46
Start date (UTC):	12/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	5388968 bytes
MD5 hash:	ae65271c943d3451b7f026d1fadccea6

Chronological Activities

Analysis Process: na.elf PID: 5481, Parent PID: 5477

General

Start time (UTC):	15:21:46
Start date (UTC):	12/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	5388968 bytes
MD5 hash:	ae65271c943d3451b7f026d1fadccea6

Chronological Activities

Analysis Process: na.elf PID: 5504, Parent PID: 5477

General

Start time (UTC):	15:21:46
Start date (UTC):	12/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	5388968 bytes
MD5 hash:	ae65271c943d3451b7f026d1fadccea6

Chronological Activities

Analysis Process: na.elf PID: 5512, Parent PID: 5504

General

Start time (UTC):	15:21:46
Start date (UTC):	12/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	5388968 bytes
MD5 hash:	ae65271c943d3451b7f026d1fadccea6

Chronological Activities

Analysis Process: na.elf PID: 5540, Parent PID: 5512

General

Start time (UTC):	15:21:46
Start date (UTC):	12/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	5388968 bytes
MD5 hash:	ae65271c943d3451b7f026d1fadccea6

Chronological Activities

Analysis Process: na.elf PID: 5671, Parent PID: 5504

General

Start time (UTC):	15:22:58
Start date (UTC):	12/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	5388968 bytes
MD5 hash:	ae65271c943d3451b7f026d1fadccea6

Chronological Activities

Analysis Process: na.elf PID: 5673, Parent PID: 5671

General

Start time (UTC):	15:22:58
Start date (UTC):	12/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	5388968 bytes
MD5 hash:	ae65271c943d3451b7f026d1fadccea6

Chronological Activities

Analysis Process: gnome-session-binary PID: 5597, Parent PID: 1588

General

Start time (UTC):	15:22:16
Start date (UTC):	12/10/2024
Path:	/usr/libexec/gnome-session-binary
Arguments:	-
File size:	334664 bytes
MD5 hash:	d9b90be4f7db60cb3c2d3da6a1d31bfb

Chronological Activities

Analysis Process: sh PID: 5597, Parent PID: 1588

General

Start time (UTC):	15:22:16
Start date (UTC):	12/10/2024
Path:	/bin/sh
Arguments:	/bin/sh -e -u -c "export GIO_LAUNCHED_DESKTOP_FILE_PID=$$; exec \"$@\"" sh /usr/bin/gnome-shell
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: gnome-shell PID: 5597, Parent PID: 1588

General

Start time (UTC):	15:22:16
Start date (UTC):	12/10/2024
Path:	/usr/bin/gnome-shell
Arguments:	/usr/bin/gnome-shell
File size:	23168 bytes
MD5 hash:	da7a257239677622fe4b3a65972c9e87

Chronological Activities

Analysis Process: gnome-session-binary PID: 5600, Parent PID: 1588

General

Start time (UTC):	15:22:16
Start date (UTC):	12/10/2024
Path:	/usr/libexec/gnome-session-binary
Arguments:	-
File size:	334664 bytes
MD5 hash:	d9b90be4f7db60cb3c2d3da6a1d31bfb

Chronological Activities

Analysis Process: sh PID: 5600, Parent PID: 1588

General

Start time (UTC):	15:22:16
Start date (UTC):	12/10/2024
Path:	/bin/sh
Arguments:	/bin/sh -e -u -c "export GIO_LAUNCHED_DESKTOP_FILE_PID=$$; exec \"$@\"" sh /usr/libexec/gsd-sharing
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: gsd-sharing PID: 5600, Parent PID: 1588

General

Start time (UTC):	15:22:16
Start date (UTC):	12/10/2024
Path:	/usr/libexec/gsd-sharing
Arguments:	/usr/libexec/gsd-sharing
File size:	35424 bytes
MD5 hash:	e29d9025d98590fbb69f89fdbd4438b3

Chronological Activities

Analysis Process: gdm3 PID: 5603, Parent PID: 1400

General

Start time (UTC):	15:22:16
Start date (UTC):	12/10/2024
Path:	/usr/sbin/gdm3
Arguments:	-
File size:	453296 bytes
MD5 hash:	2492e2d8d34f9377e3e530a61a15674f

Chronological Activities

Analysis Process: Default PID: 5603, Parent PID: 1400

General

Start time (UTC):	15:22:16
Start date (UTC):	12/10/2024
Path:	/etc/gdm3/PrimeOff/Default
Arguments:	/etc/gdm3/PrimeOff/Default
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: gdm3 PID: 5620, Parent PID: 1400

General

Start time (UTC):	15:22:17
Start date (UTC):	12/10/2024
Path:	/usr/sbin/gdm3
Arguments:	-
File size:	453296 bytes
MD5 hash:	2492e2d8d34f9377e3e530a61a15674f

Chronological Activities

Analysis Process: Default PID: 5620, Parent PID: 1400

General

Start time (UTC):	15:22:17
Start date (UTC):	12/10/2024
Path:	/etc/gdm3/PrimeOff/Default
Arguments:	/etc/gdm3/PrimeOff/Default
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: systemd PID: 5626, Parent PID: 1

General

Start time (UTC):	15:22:27
Start date (UTC):	12/10/2024
Path:	/usr/lib/systemd/systemd
Arguments:	-
File size:	1620224 bytes
MD5 hash:	9b2bec7092a40488108543f9334aab75

Chronological Activities

Analysis Process: systemd-user-runtime-dir PID: 5626, Parent PID: 1

General

Start time (UTC):	15:22:27
Start date (UTC):	12/10/2024
Path:	/lib/systemd/systemd-user-runtime-dir
Arguments:	/lib/systemd/systemd-user-runtime-dir stop 127
File size:	22672 bytes
MD5 hash:	d55f4b0847f88131dbcfb07435178e54

Description:	Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password, from the operating system and software. Credentials can then be used to perform Lateral Movement and access restricted information.
Tactics:	Credential Access
Data Sources:	Active Directory: Active Directory Object Access, Command: Command Execution, File: File Access, Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow, Process: OS API Execution, Process: Process Access, Process: Process Creation, Windows Registry: Windows Registry Key Access
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 obfuscate command and control traffic to make it more difficult to detect. Command and control (C2) communications are hidden (but not necessarily encrypted) in an attempt to make the content more difficult to discover or decipher and to make the communication less conspicuous and hide commands from being seen. This encompasses many methods, such as adding junk data to protocol traffic, using steganography, or impersonating legitimate protocols.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content
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

Malware Threat Intel

Yara Signatures

Initial Sample

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Persistence and Installation Behavior

Malware Analysis System Evasion

Stealing of Sensitive Information

Remote Access Functionality

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

World Map of Contacted IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

/run/user/127/dconf/user

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

System Behavior

Analysis Process: na.elf PID: 5477, Parent PID: 5395

General

Chronological Activities

Analysis Process: na.elf PID: 5480, Parent PID: 5477

General

Chronological Activities

Analysis Process: na.elf PID: 5481, Parent PID: 5477

General

Chronological Activities

Analysis Process: na.elf PID: 5504, Parent PID: 5477

General

Chronological Activities

Analysis Process: na.elf PID: 5512, Parent PID: 5504

General

Chronological Activities

Analysis Process: na.elf PID: 5540, Parent PID: 5512

General

Chronological Activities

Analysis Process: na.elf PID: 5671, Parent PID: 5504

General

Chronological Activities

Analysis Process: na.elf PID: 5673, Parent PID: 5671

General

Linux Analysis Report
na.elf