Edit tour

Linux Analysis Report
mips64el.elf

Overview

General Information

Sample name:	mips64el.elf
Analysis ID:	1585965
MD5:	b5347f63fee98916193027e98e4b92dd
SHA1:	33aa4a964f999c918ea965d2aba649a09a2908b1
SHA256:	d62dc5ab5816633b68a556fedd617640636f14931d0f99c52ec6c418ea713fb9
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	48
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

Sample has stripped symbol table

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:	1585965
Start date and time:	2025-01-08 15:37:07 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 36s
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:	mips64el.elf
Detection:	MAL
Classification:	mal48.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/mips64el.elf
PID:	6240
Exit Code:	2
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:	fatal error: sigaction failed runtime stack: runtime.throw({0x379d44, 0x10}) C:/Program Files/Go/src/runtime/panic.go:1077 +0x58 fp=0x4000800b50 sp=0x4000800b28 pc=0x5a0c8 runtime.sysSigaction.func1() C:/Program Files/Go/src/runtime/os_linux.go:560 +0x50 fp=0x4000800b68 sp=0x4000800b50 pc=0x96608 runtime.sysSigaction(0x41, 0x4000800bb8, 0x0) C:/Program Files/Go/src/runtime/os_linux.go:559 +0x8c fp=0x4000800b98 sp=0x4000800b68 pc=0x5667c runtime.sigaction(...) C:/Program Files/Go/src/runtime/sigaction.go:15 runtime.setsig(0x41, 0x79848) C:/Program Files/Go/src/runtime/os_linux.go:507 +0xb8 fp=0x4000800be0 sp=0x4000800b98 pc=0x56538 runtime.initsig(0x0) C:/Program Files/Go/src/runtime/signal_unix.go:148 +0x344 fp=0x4000800c50 sp=0x4000800be0 pc=0x78dc4 runtime.mstartm0() C:/Program Files/Go/src/runtime/proc.go:1624 +0x7c fp=0x4000800c60 sp=0x4000800c50 pc=0x61dfc runtime.mstart1() C:/Program Files/Go/src/runtime/proc.go:1596 +0x98 fp=0x4000800c80 sp=0x4000800c60 pc=0x61cd8 runtime.mstart0() C:/Program Files/Go/src/runtime/proc.go:1557 +0x7c fp=0x4000800ca8 sp=0x4000800c80 pc=0x61c1c runtime.mstart() C:/Program Files/Go/src/runtime/asm_mips64x.s:88 +0x14 fp=0x4000800cb0 sp=0x4000800ca8 pc=0x9d8c4 goroutine 1 [runnable]: runtime.main() C:/Program Files/Go/src/runtime/proc.go:144 fp=0xc00002c7d8 sp=0xc00002c7d8 pc=0x5d9b8 runtime.goexit() C:/Program Files/Go/src/runtime/asm_mips64x.s:648 +0x4 fp=0xc00002c7d8 sp=0xc00002c7d8 pc=0x9fd94

Process Tree

system is lnxubuntu20

mips64el.elf (PID: 6240, Parent: 6157, MD5: bba92fd1c51079d6ff2478396026936a) Arguments: /tmp/mips64el.elf

cleanup

Yara Signatures

⊘No yara matches

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: mips64el.elf

ReversingLabs: Detection: 26%

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

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

Source: mips64el.elf	String found in binary or memory: http://.css
Source: mips64el.elf	String found in binary or memory: http://.jpg
Source: mips64el.elf	String found in binary or memory: http://html4/loose.dtd

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

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal48.linELF@0/0@0/0

Source: ELF file section

Submission: mips64el.elf

Source: /tmp/mips64el.elf (PID: 6240)

Queries kernel information via 'uname':

Jump to behavior

Source: mips64el.elf, 6240.1.00007ffc85935000.00007ffc85956000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-mips64el
Source: mips64el.elf, 6240.1.0000556d5e767000.0000556d5ecf0000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/mips64el
Source: mips64el.elf, 6240.1.0000556d5e767000.0000556d5ecf0000.rw-.sdmp	Binary or memory string: y^mU1MIPS64R2-generic-mips64-cpu1/etc/qemu-binfmt/mips64elu
Source: mips64el.elf, 6240.1.00007ffc85935000.00007ffc85956000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-mips64el/tmp/mips64el.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/mips64el.elf

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	Path Interception	Path Interception	Direct Volume Access	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 Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service

Malware Configuration

⊘No configs have been found

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Number of created Files
Is malicious
Internet

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
mips64el.elf	26%	ReversingLabs	Linux.Trojan.Kaiji

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

URLs from Memory and Binaries

Name	Source	Malicious	Reputation
http://html4/loose.dtd	mips64el.elf	false	high
http://.css	mips64el.elf	false	high
http://.jpg	mips64el.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
109.202.202.202	unknown	Switzerland	13030	INIT7CH	false
91.189.91.43	unknown	United Kingdom	41231	CANONICAL-ASGB	false
91.189.91.42	unknown	United Kingdom	41231	CANONICAL-ASGB	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
109.202.202.202	kpLwzBouH4.elf	Get hash	malicious	Unknown	Browse	ch.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox_92.0%2bbuild3-0ubuntu0.20.04.1_amd64.deb
91.189.91.43	main_arm.elf	Get hash	malicious	Mirai	Browse
	mips.elf	Get hash	malicious	Mirai	Browse
	main_sh4.elf	Get hash	malicious	Mirai	Browse
	mips.elf	Get hash	malicious	Mirai	Browse
	ntpd.elf	Get hash	malicious	Unknown	Browse
	tftp.elf	Get hash	malicious	Unknown	Browse
	la.bot.mipsel.elf	Get hash	malicious	Mirai	Browse
	la.bot.arc.elf	Get hash	malicious	Mirai	Browse
	la.bot.m68k.elf	Get hash	malicious	Mirai	Browse
	la.bot.arm6.elf	Get hash	malicious	Mirai	Browse
91.189.91.42	main_arm.elf	Get hash	malicious	Mirai	Browse
	mips.elf	Get hash	malicious	Mirai	Browse
	main_sh4.elf	Get hash	malicious	Mirai	Browse
	mips.elf	Get hash	malicious	Mirai	Browse
	ntpd.elf	Get hash	malicious	Unknown	Browse
	tftp.elf	Get hash	malicious	Unknown	Browse
	la.bot.mipsel.elf	Get hash	malicious	Mirai	Browse
	la.bot.arc.elf	Get hash	malicious	Mirai	Browse
	la.bot.arm7.elf	Get hash	malicious	Mirai	Browse
	la.bot.m68k.elf	Get hash	malicious	Mirai	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	main_arm5.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	main_arm.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	mips.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main_sh4.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	mips.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	ntpd.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	tftp.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	la.bot.mipsel.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	la.bot.arc.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	la.bot.arm7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
CANONICAL-ASGB	main_arm5.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	main_arm.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	mips.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main_sh4.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	mips.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	ntpd.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	tftp.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	la.bot.mipsel.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	la.bot.arc.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	la.bot.arm7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
INIT7CH	main_arm.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	mips.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	main_sh4.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	mips.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	ntpd.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	tftp.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	la.bot.mipsel.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	la.bot.arc.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	la.bot.arm7.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	la.bot.m68k.elf	Get hash	malicious	Mirai	Browse	109.202.202.202

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Static File Info

General

File type:	ELF 64-bit LSB executable, MIPS, MIPS-III version 1 (SYSV), statically linked, Go BuildID=2nfaDLNyTQgAea2xLQA1/0H5v6VY5ZjFYxjvCU-eF/Ko1b7eaqUps2p4yK_9dl/UTaKB_kAMmLO6wPOHWPq, stripped
Entropy (8bit):	5.412453674352429
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	mips64el.elf
File size:	5'832'704 bytes
MD5:	b5347f63fee98916193027e98e4b92dd
SHA1:	33aa4a964f999c918ea965d2aba649a09a2908b1
SHA256:	d62dc5ab5816633b68a556fedd617640636f14931d0f99c52ec6c418ea713fb9
SHA512:	bf6bf30b1587372d5c041c55713fed5dc1a1a69066263a0e8289792ef5093d4c04088e49eab323f42d35f6ca62b1f280202577421620f0223a06c77bc969a22e
SSDEEP:	24576:DUbltto9YJamM7OLtx3dVo0bXuM7hHM9g/9JOW3rWfDHubmxpkKkoVqI+R02GShK:UoeJaP7O7o0Z4gdWfjuixpkVA+W2GSJ
TLSH:	25460955ADC22F66D6CC137486ED675623603E454BA2073323A4FBA83A7733C9F5688C
File Content Preview:	.ELF............................@.................. @.8...@.............@.......@.......@.......P.......P...............................................d.......d...............................................$.......$........................./.......0....

Static ELF Info

ELF header
Class:	ELF64
Data:	2's complement, little endian
Version:	1 (current)
Machine:	MIPS R3000
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0xa0ee0
Flags:	0x20000004
ELF Header Size:	64
Program Header Offset:	64
Program Header Size:	56
Number of Program Headers:	6
Section Header Offset:	400
Section Header Size:	64
Number of Section Headers:	14
Header String Table Index:	3

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.text	PROGBITS	0x11000	0x1000	0x2ead24	0x0	0x6	AX	8
.rodata	PROGBITS	0x300000	0x2f0000	0xeb13a	0x0	0x2	A	32
.shstrtab	STRTAB	0x0	0x3db140	0x98	0x0	0x0		1
.typelink	PROGBITS	0x3eb1e0	0x3db1e0	0x1704	0x0	0x2	A	32
.itablink	PROGBITS	0x3ec900	0x3dc900	0x918	0x0	0x2	A	32
.gosymtab	PROGBITS	0x3ed218	0x3dd218	0x0	0x0	0x2	A	1
.gopclntab	PROGBITS	0x3ed220	0x3dd220	0x148838	0x0	0x2	A	32
.go.buildinfo	PROGBITS	0x540000	0x530000	0x150	0x0	0x3	WA	16
.noptrdata	PROGBITS	0x540160	0x530160	0x47600	0x0	0x3	WA	32
.data	PROGBITS	0x587760	0x577760	0xd3a0	0x0	0x3	WA	32
.bss	NOBITS	0x594b00	0x584b00	0x2e3d8	0x0	0x3	WA	32
.noptrbss	NOBITS	0x5c2ee0	0x5b2ee0	0x6ab0	0x0	0x3	WA	32
.note.go.buildid	NOTE	0x10f9c	0xf9c	0x64	0x0	0x2	A	4

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
PHDR	0x40	0x10040	0x10040	0x150	0x150	1.5285	0x4	R	0x10000
NOTE	0xf9c	0x10f9c	0x10f9c	0x64	0x64	5.4208	0x4	R	0x4	.note.go.buildid
LOAD	0x0	0x10000	0x10000	0x2ebd24	0x2ebd24	5.1149	0x5	R E	0x10000	.text .note.go.buildid
LOAD	0x2f0000	0x300000	0x300000	0x235a58	0x235a58	5.3769	0x4	R	0x10000	.rodata .typelink .itablink .gosymtab .gopclntab
LOAD	0x530000	0x540000	0x540000	0x54b00	0x89990	5.9814	0x6	RW	0x10000	.go.buildinfo .noptrdata .data .bss .noptrbss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x8

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jan 8, 2025 15:37:49.554385900 CET	43928	443	192.168.2.23	91.189.91.42
Jan 8, 2025 15:37:55.185673952 CET	42836	443	192.168.2.23	91.189.91.43
Jan 8, 2025 15:37:56.721524000 CET	42516	80	192.168.2.23	109.202.202.202
Jan 8, 2025 15:38:11.055474997 CET	43928	443	192.168.2.23	91.189.91.42
Jan 8, 2025 15:38:21.294058084 CET	42836	443	192.168.2.23	91.189.91.43
Jan 8, 2025 15:38:27.437261105 CET	42516	80	192.168.2.23	109.202.202.202
Jan 8, 2025 15:38:52.009924889 CET	43928	443	192.168.2.23	91.189.91.42

System Behavior

Analysis Process: mips64el.elf PID: 6240, Parent PID: 6157

General

Start time (UTC):	14:37:48
Start date (UTC):	08/01/2025
Path:	/tmp/mips64el.elf
Arguments:	/tmp/mips64el.elf
File size:	5822264 bytes
MD5 hash:	bba92fd1c51079d6ff2478396026936a

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

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

Description:	Adversaries may communicate using OSI application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report mips64el.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Malware Analysis System Evasion

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

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

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: mips64el.elf PID: 6240, Parent PID: 6157

General

Chronological Activities

Linux Analysis Report
mips64el.elf