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Linux Analysis Report
sh4.elf

Overview

General Information

Sample name:	sh4.elf
Analysis ID:	1654340
MD5:	74a19f8d135f7132780ffddb8077d3fe
SHA1:	7a3b606151e7699617e1f40d121d72d308df9568
SHA256:	26b00fffb4dcfdf0e6531bc3409c6c14755cd8673c66036b202ac15bc51561d6
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	48
Range:	0 - 100

Signatures

Multi AV Scanner detection for submitted file

Enumerates processes within the "proc" file system

Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable

Sample contains strings indicative of password brute-forcing capabilities

Sample has stripped symbol table

Sample listens on a socket

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

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1654340
Start date and time:	2025-04-02 09:52:53 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 39s
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:	sh4.elf
Detection:	MAL
Classification:	mal48.linELF@0/4@2/0

Runtime Messages

Command:	/tmp/sh4.elf
PID:	5536
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	For God so loved the world
Standard Error:

Process Tree

system is lnxubuntu20

sh4.elf (PID: 5536, Parent: 5450, MD5: 8943e5f8f8c280467b4472c15ae93ba9) Arguments: /tmp/sh4.elf

sh4.elf New Fork (PID: 5540, Parent: 5536)

cleanup

Yara Signatures

⊘No yara matches

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary
• Persistence and Installation Behavior
• Malware Analysis System Evasion

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: sh4.elf

ReversingLabs: Detection: 33%

Source: /tmp/sh4.elf (PID: 5540)

Socket: 127.0.0.1:22448

Jump to behavior

Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1

Source: global traffic

DNS traffic detected: DNS query: daisy.ubuntu.com

Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne "\x77\x68\x69\x6c\x65\x20\x72\x65\x61\x64\x20\x2d\x72\x20\x6c\x3b\x20\x64\x6f\x20\x6d\x70\x3d\x24\x28\x65\x63\x68\x6f\x20\x22\x24" > kmount
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne "\x6c\x22\x20\x7c\x20\x61\x77\x6b\x20\x27\x7b\x70\x72\x69\x6e\x74\x20\x24\x32\x7d\x27\x20\x7c\x20\x73\x65\x64\x20\x27\x73\x2f\x5c" >> kmount
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne "\x5c\x30\x34\x30\x2f\x20\x2f\x67\x27\x29\x3b\x20\x63\x61\x73\x65\x20\x22\x24\x6d\x70\x22\x20\x69\x6e\x20\x2f\x70\x72\x6f\x63\x2f" >> kmount
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne "\x5b\x30\x2d\x39\x5d\x2a\x29\x20\x70\x69\x64\x3d\x24\x7b\x6d\x70\x23\x2f\x70\x72\x6f\x63\x2f\x7d\x3b\x20\x5b\x20\x2d\x64\x20\x22" >> kmount
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne "\x2f\x70\x72\x6f\x63\x2f\x24\x70\x69\x64\x22\x20\x5d\x20\x26\x26\x20\x6b\x69\x6c\x6c\x20\x2d\x39\x20\x22\x24\x70\x69\x64\x22\x20" >> kmount
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne "\x32\x3e\x2f\x64\x65\x76\x2f\x6e\x75\x6c\x6c\x20\x26\x26\x20\x75\x6d\x6f\x75\x6e\x74\x20\x22\x24\x6d\x70\x22\x20\x32\x3e\x2f\x64" >> kmount
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne "\x65\x76\x2f\x6e\x75\x6c\x6c\x3b\x3b\x20\x65\x73\x61\x63\x3b\x20\x64\x6f\x6e\x65\x20\x3c\x20\x2f\x70\x72\x6f\x63\x2f\x6d\x6f\x75" >> kmount
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne "\x6e\x74\x73" >> kmount
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne "\x66\x6f\x72\x20\x70\x69\x64\x20\x69\x6e\x20\x2f\x70\x72\x6f\x63\x2f\x5b\x30\x2d\x39\x5d\x2a\x3b\x20\x64\x6f\x20\x70\x69\x64\x5f" > swan
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne "\x6e\x75\x6d\x3d\x22\x24\x7b\x70\x69\x64\x23\x23\x2a\x2f\x7d\x22\x3b\x20\x69\x66\x20\x5b\x20\x2d\x72\x20\x22\x24\x70\x69\x64\x2f" >> swan
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne "\x6d\x61\x70\x73\x22\x20\x5d\x3b\x20\x74\x68\x65\x6e\x20\x73\x75\x73\x70\x69\x63\x69\x6f\x75\x73\x3d\x74\x72\x75\x65\x3b\x20\x77" >> swan
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne "\x68\x69\x6c\x65\x20\x49\x46\x53\x3d\x20\x72\x65\x61\x64\x20\x2d\x72\x20\x6c\x69\x6e\x65\x3b\x20\x64\x6f\x20\x63\x61\x73\x65\x20" >> swan
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne "\x22\x24\x6c\x69\x6e\x65\x22\x20\x69\x6e\x20\x2a\x22\x2f\x6c\x69\x62\x2f\x22\x2a\x7c\x2a\x22\x2f\x6c\x69\x62\x36\x34\x2f\x22\x2a" >> swan
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne "\x7c\x2a\x22\x2e\x73\x6f\x22\x2a\x29\x20\x73\x75\x73\x70\x69\x63\x69\x6f\x75\x73\x3d\x66\x61\x6c\x73\x65\x3b\x20\x62\x72\x65\x61" >> swan
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne "\x6b\x3b\x3b\x20\x65\x73\x61\x63\x3b\x20\x64\x6f\x6e\x65\x20\x3c\x20\x22\x24\x70\x69\x64\x2f\x6d\x61\x70\x73\x22\x3b\x20\x69\x66" >> swan
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne "\x20\x5b\x20\x22\x24\x73\x75\x73\x70\x69\x63\x69\x6f\x75\x73\x22\x20\x3d\x20\x74\x72\x75\x65\x20\x5d\x3b\x20\x74\x68\x65\x6e\x20" >> swan
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne "\x6b\x69\x6c\x6c\x20\x2d\x39\x20\x22\x24\x70\x69\x64\x5f\x6e\x75\x6d\x22\x3b\x20\x66\x69\x3b\x20\x66\x69\x3b\x20\x64\x6f\x6e\x65" >> swan
Source: Initial sample	String containing 'busybox' found: sh kmount/bin/busybox echo -ne "\x66\x6f\x72\x20\x70\x69\x64\x20\x69\x6e\x20\x2f\x70\x72\x6f\x63\x2f\x5b\x30\x2d\x39\x5d\x2a\x3b\x20\x64\x6f\x20\x70\x69\x64\x5f" > swan

Source: Initial sample	String containing potential weak password found: 12345
Source: Initial sample	String containing potential weak password found: 54321
Source: Initial sample	String containing potential weak password found: 654321
Source: Initial sample	String containing potential weak password found: admin1234
Source: Initial sample	String containing potential weak password found: administrator
Source: Initial sample	String containing potential weak password found: supervisor
Source: Initial sample	String containing potential weak password found: password
Source: Initial sample	String containing potential weak password found: default
Source: Initial sample	String containing potential weak password found: guest
Source: Initial sample	String containing potential weak password found: service
Source: Initial sample	String containing potential weak password found: support

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal48.linELF@0/4@2/0

Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/110/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/231/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/111/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/112/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/233/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/113/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/114/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/235/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/115/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1333/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1333/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1333/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/116/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1695/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1695/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1695/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/117/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/118/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/119/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/911/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/914/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/3877/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/3877/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/3877/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/10/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/917/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/917/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/917/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/11/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/12/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/13/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/14/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/15/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/16/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/17/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/18/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/19/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1591/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1591/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1591/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/120/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/121/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1/maps	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/122/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/243/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/2/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/123/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/3/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/124/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1588/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1588/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1588/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/125/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/4/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/246/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/126/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/5/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/127/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/6/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1585/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1585/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1585/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/128/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/7/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/129/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/8/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/800/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/800/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/800/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/9/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/802/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/802/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/802/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/803/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/803/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/803/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/804/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/804/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/804/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/20/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/21/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/3407/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/3407/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/3407/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/22/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/23/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/24/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/25/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/26/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/27/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/28/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/29/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1484/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1484/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1484/maps	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/1484/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/490/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/490/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/490/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/250/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/130/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 5536)	File opened: /proc/251/cmdline	Jump to behavior

Source: /tmp/sh4.elf (PID: 5536)

Queries kernel information via 'uname':

Jump to behavior

Source: sh4.elf, 5536.1.00007fd0dc426000.00007fd0dc42d000.rw-.sdmp, sh4.elf, 5540.1.00007fd0dc426000.00007fd0dc42d000.rw-.sdmp	Binary or memory string: B!!a1gAWFxuAXsFWUgBRQAA!!a1gAWFxuAXsAWUgKRXgA!!a1gAWFxuAXsAWEgJR3IA!!a10CWFxuAHsGWVcWQHAA!!a10CWFxuAHsGWVcWQHUA!!aFwAWF9uA3sGW0gLRgAA!!aFwAWFlpG2QBW0gJTwAA!!qemu-arm2QBW0gJTwAA!
Source: sh4.elf, 5540.1.00007ffcbabc3000.00007ffcbabe4000.rw-.sdmp	Binary or memory string: exed the wor!/qemu-open.XXXXX
Source: sh4.elf, 5540.1.00007fd0dc426000.00007fd0dc42d000.rw-.sdmp	Binary or memory string: vmware
Source: sh4.elf, 5536.1.00007ffcbabc3000.00007ffcbabe4000.rw-.sdmp	Binary or memory string: /tmp/qemu-open.3xMUWP
Source: sh4.elf, 5536.1.00007fd0dc426000.00007fd0dc42d000.rw-.sdmp, sh4.elf, 5540.1.00007fd0dc426000.00007fd0dc42d000.rw-.sdmp	Binary or memory string: qemu-arm
Source: sh4.elf, 5536.1.00007ffcbabc3000.00007ffcbabe4000.rw-.sdmp, sh4.elf, 5540.1.00007ffcbabc3000.00007ffcbabe4000.rw-.sdmp	Binary or memory string: /qemu-open.XXXXX
Source: sh4.elf, 5536.1.00007ffcbabc3000.00007ffcbabe4000.rw-.sdmp, sh4.elf, 5540.1.00007ffcbabc3000.00007ffcbabe4000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-sh4
Source: sh4.elf, 5536.1.00007ffcbabc3000.00007ffcbabe4000.rw-.sdmp	Binary or memory string: U/tmp/qemu-open.3xMUWP\
Source: sh4.elf, 5536.1.000055da058ce000.000055da0597d000.rw-.sdmp, sh4.elf, 5540.1.000055da058ce000.000055da0597d000.rw-.sdmp	Binary or memory string: U5!/etc/qemu-binfmt/sh4
Source: sh4.elf, 5536.1.000055da058ce000.000055da0597d000.rw-.sdmp, sh4.elf, 5540.1.000055da058ce000.000055da0597d000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/sh4
Source: sh4.elf, 5536.1.00007ffcbabc3000.00007ffcbabe4000.rw-.sdmp, sh4.elf, 5540.1.00007ffcbabc3000.00007ffcbabe4000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-sh4/tmp/sh4.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/sh4.elf
Source: sh4.elf, 5540.1.00007ffcbabc3000.00007ffcbabe4000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

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 Non-Application Layer Protocol	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	1 Brute Force	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	1 Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service

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
sh4.elf	33%	ReversingLabs	Linux.Backdoor.Gafgyt

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
daisy.ubuntu.com	162.213.35.24	true	false		high

World Map of Contacted IPs

⊘No contacted IP infos

Joe Sandbox View / Context

IPs

⊘No context

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	s-h.4-.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	x-8.6-.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	arm.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	FBI.arm.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	FBI.sh4.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	FBI.arm7.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.25
	FBI.mips.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.25
	FBI.ppc.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	FBI.arm6.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	mpsl.elf	Get hash	malicious	Unknown	Browse	162.213.35.25

ASNs

⊘No context

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

/tmp/qemu-open.3xMUWP (deleted)

Download File

Process:	/tmp/sh4.elf
File Type:	ASCII text, with no line terminators
Category:	dropped
Size (bytes):	13
Entropy (8bit):	3.5465935642949384
Encrypted:	false
SSDEEP:	3:TgKYn:TgKYn
MD5:	AEF4020327A62D78F5A8202D453B0A74
SHA1:	84FC7A7CBE0B4EF5BDB927B95EA1BD01665BE8B1
SHA-256:	1878DDF74B755A998CBFD2140779771966ADF507D2B95CA86906476BFD80575B
SHA-512:	0E1BF58363F746F19B92730E15E2091F05A2C87B120B004F3819735F4D60268E66711EBEB06E3B771B2DE327FCBB3DDD368241E7A6E1A1B759384F6D70A2C528
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	/tmp/sh4.elf.

/tmp/qemu-open.ForMiP (deleted)

Download File

Process:	/tmp/sh4.elf
File Type:	ASCII text
Category:	dropped
Size (bytes):	360
Entropy (8bit):	3.8142074438312226
Encrypted:	false
SSDEEP:	6:URJdFYgDF1SWdIwY/VUAaDF1S85qY/VKAvVVyAb/3hM/V+4D/VH:ITFtdKkNUaVIAbRMfF
MD5:	00433E10F7961F10768E16F6B913058B
SHA1:	0E45BC1C20A4AE2A57AA4147F13176B09615280D
SHA-256:	8FA99E554C95B73B085243C98A6E4A72EFE7E5BB1C53EE2EAD6B1467D30D4D38
SHA-512:	2E09BB11002E8F6CA0235538372C669798F286AFC8A4268913A1262DA0F26F817B6537C47742EF0B22F5CB001FE0C967B8B82D722035973D2803FFF067B0DCCF
Malicious:	false
Reputation:	low
Preview:	400000-415000 r-xp 00000000 fd:00 531606 /tmp/sh4.elf.425000-426000 rw-p 00015000 fd:00 531606 /tmp/sh4.elf.426000-42d000 rw-p 00000000 00:00 0 .7f7fe000-7f7ff000 r--p 00000000 fd:00 793309 /usr/lib/x86_64-linux-gnu/libm-2.31.so.7f7ff000-7f800000 ---p 00000000 00:00 0 .7f800000-80000000 rw-p 00000000 00:00 0 [stack].

/tmp/qemu-open.PEpITO (deleted)

Download File

Process:	/tmp/sh4.elf
File Type:	ASCII text, with no line terminators
Category:	dropped
Size (bytes):	13
Entropy (8bit):	3.5465935642949384
Encrypted:	false
SSDEEP:	3:TgKYn:TgKYn
MD5:	AEF4020327A62D78F5A8202D453B0A74
SHA1:	84FC7A7CBE0B4EF5BDB927B95EA1BD01665BE8B1
SHA-256:	1878DDF74B755A998CBFD2140779771966ADF507D2B95CA86906476BFD80575B
SHA-512:	0E1BF58363F746F19B92730E15E2091F05A2C87B120B004F3819735F4D60268E66711EBEB06E3B771B2DE327FCBB3DDD368241E7A6E1A1B759384F6D70A2C528
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	/tmp/sh4.elf.

/tmp/qemu-open.kJDzzP (deleted)

Download File

Process:	/tmp/sh4.elf
File Type:	ASCII text, with no line terminators
Category:	dropped
Size (bytes):	13
Entropy (8bit):	3.5465935642949384
Encrypted:	false
SSDEEP:	3:TgKYn:TgKYn
MD5:	AEF4020327A62D78F5A8202D453B0A74
SHA1:	84FC7A7CBE0B4EF5BDB927B95EA1BD01665BE8B1
SHA-256:	1878DDF74B755A998CBFD2140779771966ADF507D2B95CA86906476BFD80575B
SHA-512:	0E1BF58363F746F19B92730E15E2091F05A2C87B120B004F3819735F4D60268E66711EBEB06E3B771B2DE327FCBB3DDD368241E7A6E1A1B759384F6D70A2C528
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	/tmp/sh4.elf.

Static File Info

General

File type:	ELF 32-bit LSB executable, Renesas SH, version 1 (SYSV), dynamically linked, stripped
Entropy (8bit):	6.888737595544536
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	sh4.elf
File size:	86'868 bytes
MD5:	74a19f8d135f7132780ffddb8077d3fe
SHA1:	7a3b606151e7699617e1f40d121d72d308df9568
SHA256:	26b00fffb4dcfdf0e6531bc3409c6c14755cd8673c66036b202ac15bc51561d6
SHA512:	ec7eaac85e9174a0d845c7d197765e2e160ded12046c909d219a233c95c4f28749524183369aeae0a9f2b89b0332d33b3968714aaf5ba4b59455328462c334cb
SSDEEP:	1536:eko/xVM5PcnD+TM41i+cG9LH/oUNCrdTlnOVr:e1/M5PcDcHnr3ErdE
TLSH:	DC838E72B8207D9ACC1925B6F070CA798F116AA140C21DB7ADEDF2744057E89F94EF6C
File Content Preview:	.ELF.....................@.4....Q......4. ...(...............@...@..I...I...............P...PB..PB.....0H............................................././"O.n......#.@........#.*@....&O.n.l..................................././.../.a"O.!...n...a.b("...q.

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	<unknown>
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x4001a0
Flags:	0xc
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	86468
Section Header Size:	40
Number of Section Headers:	10
Header String Table Index:	9

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x400094	0x94	0x2e	0x0	0x6	AX	4
.text	PROGBITS	0x4000e0	0xe0	0x12000	0x0	0x6	AX	32
.fini	PROGBITS	0x4120e0	0x120e0	0x22	0x0	0x6	AX	4
.rodata	PROGBITS	0x412104	0x12104	0x2884	0x0	0x2	A	4
.ctors	PROGBITS	0x4250dc	0x150dc	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x4250e4	0x150e4	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x4250f0	0x150f0	0x94	0x0	0x3	WA	4
.bss	NOBITS	0x425184	0x15184	0x4788	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0x15184	0x3e	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x400000	0x400000	0x14988	0x14988	6.9872	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x150dc	0x4250dc	0x4250dc	0xa8	0x4830	4.0814	0x6	RW	0x10000	.ctors .dtors .data .bss
DYNAMIC	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Download Network PCAP: filtered – full

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 2, 2025 09:53:49.804879904 CEST	47674	53	192.168.2.15	1.1.1.1
Apr 2, 2025 09:53:49.804933071 CEST	37139	53	192.168.2.15	1.1.1.1
Apr 2, 2025 09:53:49.903721094 CEST	53	37139	1.1.1.1	192.168.2.15
Apr 2, 2025 09:53:49.974729061 CEST	53	47674	1.1.1.1	192.168.2.15

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Apr 2, 2025 09:53:49.804879904 CEST	192.168.2.15	1.1.1.1	0xc3e6	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Apr 2, 2025 09:53:49.804933071 CEST	192.168.2.15	1.1.1.1	0xc898	Standard query (0)	daisy.ubuntu.com	28	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Apr 2, 2025 09:53:49.974729061 CEST	1.1.1.1	192.168.2.15	0xc3e6	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false
Apr 2, 2025 09:53:49.974729061 CEST	1.1.1.1	192.168.2.15	0xc3e6	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: sh4.elf PID: 5536, Parent PID: 5450

General

Start time (UTC):	07:53:43
Start date (UTC):	02/04/2025
Path:	/tmp/sh4.elf
Arguments:	/tmp/sh4.elf
File size:	4139976 bytes
MD5 hash:	8943e5f8f8c280467b4472c15ae93ba9

File Activities

File Opened

File Deleted

File Read

File Written

File Moved

Directory Enumerated

Process Activities

Process Forked

Prctl Requested

Thread Sleep

System Activities

Query System Information (uname)

Network Activities

Socket Connecting

Chronological Activities

Analysis Process: sh4.elf PID: 5540, Parent PID: 5536

General

Start time (UTC):	07:53:46
Start date (UTC):	02/04/2025
Path:	/tmp/sh4.elf
Arguments:	-
File size:	4139976 bytes
MD5 hash:	8943e5f8f8c280467b4472c15ae93ba9

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 use brute force techniques to gain access to accounts when passwords are unknown or when password hashes are obtained. Without knowledge of the password for an account or set of accounts, an adversary may systematically guess the password using a repetitive or iterative mechanism. Brute forcing passwords can take place via interaction with a service that will check the validity of those credentials or offline against previously acquired credential data, such as password hashes.
Tactics:	Credential Access
Data Sources:	Application Log: Application Log Content, Command: Command Execution, User Account: User Account Authentication
Platforms:	Azure AD, Containers, Google Workspace, IaaS, Linux, macOS, Network, Office 365, SaaS, 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 use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

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

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report sh4.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Persistence and Installation Behavior

Malware Analysis System Evasion

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

World Map of Contacted IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

/tmp/qemu-open.3xMUWP (deleted)

/tmp/qemu-open.ForMiP (deleted)

/tmp/qemu-open.PEpITO (deleted)

/tmp/qemu-open.kJDzzP (deleted)

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: sh4.elf PID: 5536, Parent PID: 5450

General

File Activities

File Opened

File Deleted

File Read

File Written

File Moved

Directory Enumerated

Process Activities

Process Forked

Prctl Requested

Thread Sleep

System Activities

Query System Information (uname)

Network Activities

Socket Connecting

Chronological Activities

Analysis Process: sh4.elf PID: 5540, Parent PID: 5536

General

File Activities

File Opened

Process Activities

Linux Analysis Report
sh4.elf