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Linux Analysis Report
mips64.elf

Overview

General Information

Sample name:	mips64.elf
Analysis ID:	1543412
MD5:	f92b7b20b48a81aa2bcf36b8a778d367
SHA1:	9936b20da2ac3f749b97a93610f61a0a2865bc74
SHA256:	1cc6c44557fa4c098f525f26e84cfde30486924aa1090248affb42dc103b4aa4
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	1
Range:	0 - 100
Whitelisted:	false

Signatures

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:	1543412
Start date and time:	2024-10-27 20:19:40 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 43s
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:	mips64.elf
Detection:	CLEAN
Classification:	clean1.linELF@0/0@0/0

Warnings

VT rate limit hit for: mips64.elf

Runtime Messages

Command:	/tmp/mips64.elf
PID:	5514
Exit Code:	2
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:	fatal error: sigaction failed runtime stack: runtime.throw({0x5d6a27, 0x10}) runtime/panic.go:1023 +0x58 fp=0x4000800b60 sp=0x4000800b38 pc=0x5d058 runtime.sysSigaction.func1() runtime/os_linux.go:535 +0x50 fp=0x4000800b78 sp=0x4000800b60 pc=0x9c6b8 runtime.sysSigaction(0x41, 0x4000800bc8, 0x0) runtime/os_linux.go:534 +0x8c fp=0x4000800ba8 sp=0x4000800b78 pc=0x59c04 runtime.sigaction(...) runtime/sigaction.go:15 runtime.setsig(0x41, 0x7f3a0) runtime/os_linux.go:482 +0xb8 fp=0x4000800bf0 sp=0x4000800ba8 pc=0x59ac0 runtime.initsig(0x0) runtime/signal_unix.go:148 +0x344 fp=0x4000800c60 sp=0x4000800bf0 pc=0x7e91c runtime.mstartm0() runtime/proc.go:1753 +0x7c fp=0x4000800c70 sp=0x4000800c60 pc=0x6571c runtime.mstart1() runtime/proc.go:1725 +0x98 fp=0x4000800c90 sp=0x4000800c70 pc=0x655f8 runtime.mstart0() runtime/proc.go:1686 +0x7c fp=0x4000800cb8 sp=0x4000800c90 pc=0x6553c runtime.mstart() runtime/asm_mips64x.s:88 +0x14 fp=0x4000800cc0 sp=0x4000800cb8 pc=0xa37c4 goroutine 1 gp=0xc0000021c0 m=nil [runnable]: runtime.main() runtime/proc.go:146 fp=0xc0000547d8 sp=0xc0000547d8 pc=0x60830 runtime.goexit({}) runtime/asm_mips64x.s:671 +0x4 fp=0xc0000547d8 sp=0xc0000547d8 pc=0xa5ce4

Process Tree

system is lnxubuntu20

mips64.elf (PID: 5514, Parent: 5433, MD5: 801a06b4e0ed2dca89cbfa1f900a483d) Arguments: /tmp/mips64.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

There are no malicious signatures, click here to show all signatures.

Source: global traffic

TCP traffic: 192.168.2.14:46540 -> 185.125.190.26:443

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

Source: unknown

Network traffic detected: HTTP traffic on port 46540 -> 443

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: clean1.linELF@0/0@0/0

Source: ELF file section

Submission: mips64.elf

Source: /tmp/mips64.elf (PID: 5514)

Queries kernel information via 'uname':

Jump to behavior

Source: mips64.elf, 5514.1.00007ffec72c3000.00007ffec72e4000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-mips64
Source: mips64.elf, 5514.1.000055abd3284000.000055abd3805000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/mips641RelativeDistinguishedName
Source: mips64.elf, 5514.1.00007ffec72c3000.00007ffec72e4000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-mips64/tmp/mips64.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/mips64.elf
Source: mips64.elf, 5514.1.000055abd3284000.000055abd3805000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/mips64

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

Screenshots

Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
mips64.elf	3%	ReversingLabs	Linux.Malware.GoRAT

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

World Map of Contacted IPs

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

Public IPs

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

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
185.125.190.26	FBI.mpsl.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	c0r0n4x.ppc.elf	Get hash	malicious	Unknown	Browse
	dlr.x86.elf	Get hash	malicious	Okiru	Browse
	main_sh4.elf	Get hash	malicious	Mirai	Browse
	main_ppc.elf	Get hash	malicious	Mirai	Browse
	main_arm5.elf	Get hash	malicious	Mirai	Browse
	main_arm7.elf	Get hash	malicious	Mirai	Browse
	arm7.elf	Get hash	malicious	Unknown	Browse
	m68k.elf	Get hash	malicious	Unknown	Browse
	armv7l.elf	Get hash	malicious	Gafgyt, Mirai	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	amd64.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	.i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	parm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	debug.dbg.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	linux_amd64.elf	Get hash	malicious	Chaos	Browse	91.189.91.42
	linux_mips_softfloat.elf	Get hash	malicious	Chaos	Browse	91.189.91.42
	linux_mips64_softfloat.elf	Get hash	malicious	Chaos	Browse	91.189.91.42

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 MSB executable, MIPS, MIPS-III version 1 (SYSV), statically linked, Go BuildID=1ye6ybN152vEcCU2AN2K/s7vBGJyLGTPcN5KC6i7h/Ivrhmo-7MDZl9Ybyj4mQ/GYmHQ3RyC7UgGGERUbLY, stripped
Entropy (8bit):	5.365739009432707
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	mips64.elf
File size:	9'699'480 bytes
MD5:	f92b7b20b48a81aa2bcf36b8a778d367
SHA1:	9936b20da2ac3f749b97a93610f61a0a2865bc74
SHA256:	1cc6c44557fa4c098f525f26e84cfde30486924aa1090248affb42dc103b4aa4
SHA512:	65a20efb8e063476de84fd57aa26c2575e3c33451d144a4cba196a9f5d9cd660b286dc9934562f7158cdd0c4df5aa36cce50caeb19acbc0d8d55b6a1793f40ff
SSDEEP:	49152:OcT2ZXWHzE7Ra5CWQR0PrFWJjvSwSl8ZgUgIgUxasXsfWCl6HH6:OcT2ME7UTAXsll6n6
TLSH:	00A62A51BF94DE1BD2E822348AA7C23837D67D0181E064376756F31D1FBA3B0992AED4
File Content Preview:	.ELF..........................o0.......@........ ....@.8...@...................@.......@.......@.......P.......P...............................................d.......d.............................................K.......K.......................L.......M.

Static ELF Info

ELF header
Class:	ELF64
Data:	2's complement, big 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:	0xa6f30
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:	13

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.text	PROGBITS	0x11000	0x1000	0x4b04f4	0x0	0x6	AX	8
.rodata	PROGBITS	0x4d0000	0x4c0000	0x1cc309	0x0	0x2	A	32
.typelink	PROGBITS	0x69c320	0x68c320	0x310c	0x0	0x2	A	32
.itablink	PROGBITS	0x69f440	0x68f440	0x1ee0	0x0	0x2	A	32
.gosymtab	PROGBITS	0x6a1320	0x691320	0x0	0x0	0x2	A	1
.gopclntab	PROGBITS	0x6a1320	0x691320	0x2596a0	0x0	0x2	A	32
.go.buildinfo	PROGBITS	0x900000	0x8f0000	0x590	0x0	0x3	WA	16
.noptrdata	PROGBITS	0x9005a0	0x8f05a0	0x30a42	0x0	0x3	WA	32
.data	PROGBITS	0x931000	0x921000	0x15000	0x0	0x3	WA	32
.bss	NOBITS	0x946000	0x936000	0x60730	0x0	0x3	WA	32
.noptrbss	NOBITS	0x9a6740	0x996740	0xe470	0x0	0x3	WA	32
.note.go.buildid	NOTE	0x10f9c	0xf9c	0x64	0x0	0x2	A	4
.shstrtab	STRTAB	0x0	0x940000	0x98	0x0	0x0		1

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	1.5206	0x4	R	0x10000
NOTE	0xf9c	0x10f9c	0x10f9c	0x64	0x64	5.1945	0x4	R	0x4	.note.go.buildid
LOAD	0x0	0x10000	0x10000	0x4b14f4	0x4b14f4	5.0597	0x5	R E	0x10000	.text .note.go.buildid
LOAD	0x4c0000	0x4d0000	0x4d0000	0x42a9c0	0x42a9c0	5.4071	0x4	R	0x10000	.rodata .typelink .itablink .gosymtab .gopclntab
LOAD	0x8f0000	0x900000	0x900000	0x46000	0xb4bb0	4.9159	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
Oct 27, 2024 20:20:43.359481096 CET	46540	443	192.168.2.14	185.125.190.26
Oct 27, 2024 20:21:14.846271038 CET	46540	443	192.168.2.14	185.125.190.26

System Behavior

Analysis Process: mips64.elf PID: 5514, Parent PID: 5433

General

Start time (UTC):	19:20:32
Start date (UTC):	27/10/2024
Path:	/tmp/mips64.elf
Arguments:	/tmp/mips64.elf
File size:	5830456 bytes
MD5 hash:	801a06b4e0ed2dca89cbfa1f900a483d

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

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Warning!

Linux Analysis Report mips64.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

Networking

System Summary

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

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: mips64.elf PID: 5514, Parent PID: 5433

General

Chronological Activities

Linux Analysis Report
mips64.elf