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Linux Analysis Report
2QufQlF1Rv.elf

Overview

General Information

Sample name:	2QufQlF1Rv.elf renamed because original name is a hash value
Original sample name:	fbf8acce71b6a84ac289608b9d92308c.elf
Analysis ID:	1430435
MD5:	fbf8acce71b6a84ac289608b9d92308c
SHA1:	55e5a316410d830e67016cbe2a9ac71815f68667
SHA256:	be9ac23bde9eee1edf019e78698e6622a5e43142b653f26ba43fa1925330b00b
Tags:	32armelfmirai
Infos:

Detection

Score:	56
Range:	0 - 100
Whitelisted:	false

Signatures

Antivirus / Scanner detection for submitted sample

Multi AV Scanner detection for submitted file

Found strings indicative of a multi-platform dropper

Sample has stripped symbol table

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

Classification

Analysis Advice

Static ELF header machine description suggests that the sample might not execute correctly on this machine.

Exit code information suggests that the sample terminated abnormally, try to lookup the sample's target architecture.

Non-zero exit code suggests an error during the execution. Lookup the error code for hints.

Static ELF header machine description suggests that the sample might only run correctly on MIPS or ARM architectures.

General Information

Joe Sandbox version:	40.0.0 Tourmaline
Analysis ID:	1430435
Start date and time:	2024-04-23 16:50:08 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 5m 1s
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:	2QufQlF1Rv.elf renamed because original name is a hash value
Original Sample Name:	fbf8acce71b6a84ac289608b9d92308c.elf
Detection:	MAL
Classification:	mal56.linELF@0/0@2/0

Warnings

VT rate limit hit for: 2QufQlF1Rv.elf

Runtime Messages

Command:	/tmp/2QufQlF1Rv.elf
PID:	5826
Exit Code:	139
Exit Code Info:	SIGSEGV (11) Segmentation fault invalid memory reference
Killed:	False
Standard Output:
Standard Error:	qemu: uncaught target signal 11 (Segmentation fault) - core dumped

Process Tree

system is lnxubuntu20

2QufQlF1Rv.elf (PID: 5826, Parent: 5749, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/2QufQlF1Rv.elf

cleanup

Yara Signatures

⊘No yara matches

Snort Signatures

⊘No Snort rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: 2QufQlF1Rv.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: 2QufQlF1Rv.elf

ReversingLabs: Detection: 39%

Source: 2QufQlF1Rv.elf

String: EOF/proc//proc/%s/cmdlinewgetcurlftpechokillbashrebootshutdownhaltpoweroff[locker] killed process: %s ;; pid: %d

Source: unknown

DNS traffic detected: queries for: daisy.ubuntu.com

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal56.linELF@0/0@2/0

Source: /tmp/2QufQlF1Rv.elf (PID: 5826)

Queries kernel information via 'uname':

Jump to behavior

Source: 2QufQlF1Rv.elf, 5826.1.0000558c2e78b000.0000558c2e8b9000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: 2QufQlF1Rv.elf, 5826.1.0000558c2e78b000.0000558c2e8b9000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: 2QufQlF1Rv.elf, 5826.1.00007ffef681b000.00007ffef683c000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: 2QufQlF1Rv.elf, 5826.1.00007ffef681b000.00007ffef683c000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Source: 2QufQlF1Rv.elf, 5826.1.00007ffef681b000.00007ffef683c000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/2QufQlF1Rv.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/2QufQlF1Rv.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	1 Scripting	Valid Accounts	Windows Management Instrumentation	1 Scripting	Path Interception	Direct Volume Access	OS Credential Dumping	11 Security Software Discovery	Remote Services	Data from Local System	1 Non-Application Layer Protocol	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
2QufQlF1Rv.elf	39%	ReversingLabs	Linux.Trojan.Mirai
2QufQlF1Rv.elf	100%	Avira	EXP/ELF.Mirai.W

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
daisy.ubuntu.com	162.213.35.24	true	false		high

World Map of Contacted IPs

⊘No contacted IP infos

Joe Sandbox View / Context

IPs

⊘No context

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	1mHUcsxKG6.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	wMPum9KAnI.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	sora.arm.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	sora.x86.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	Q3nsFVfbem.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.25
	8nVNg2KqxW.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	CITauQKjMd.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	PoJxsiOLh2.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	3UPhJmQfMS.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	gwX4DFn6ue.elf	Get hash	malicious	Unknown	Browse	162.213.35.25

ASNs

⊘No context

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Static File Info

General

File type:	ELF 32-bit LSB executable, ARM, EABI4 version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.03953177606275
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	2QufQlF1Rv.elf
File size:	83'448 bytes
MD5:	fbf8acce71b6a84ac289608b9d92308c
SHA1:	55e5a316410d830e67016cbe2a9ac71815f68667
SHA256:	be9ac23bde9eee1edf019e78698e6622a5e43142b653f26ba43fa1925330b00b
SHA512:	b2e4c5c9247ee330589b6429e50eeb0f51f5306636c8ee096066625fe4a43b6a9a4fcfa0611f18fa52e0e37e519037c66546521d74ba855d8bb23685e6925950
SSDEEP:	1536:A0nmnWY5FiTMCC0sDSF1YYHIUCaHy/QbuQPMtLi7Dg3OmQ7op5uSiXc:10FoFX9IUCaHwKDg3OmQEpE
TLSH:	6F832996B8C18B11C6D512BAFA1E118E3313177CE3DE72229D246F2477CB86B0E77952
File Content Preview:	.ELF..............(.....T...4....D......4. ...(......................;...;...............@...@...@..................Q.td..................................-...L..................@-.,@...0....S..... 0....S.........../..0...0...@..../..C.......@....-.@0....S

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	ARM
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x8154
Flags:	0x4000002
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	82968
Section Header Size:	40
Number of Section Headers:	12
Header String Table Index:	11

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x8094	0x94	0x10	0x0	0x6	AX	4
.text	PROGBITS	0x80b0	0xb0	0x12568	0x0	0x6	AX	16
.fini	PROGBITS	0x1a618	0x12618	0x10	0x0	0x6	AX	4
.rodata	PROGBITS	0x1a628	0x12628	0x1580	0x0	0x2	A	8
.init_array	INIT_ARRAY	0x24004	0x14008	0x4	0x0	0x3	WA	4
.fini_array	FINI_ARRAY	0x24008	0x1400c	0x4	0x0	0x3	WA	4
.got	PROGBITS	0x24010	0x14014	0x74	0x4	0x3	WA	4
.data	PROGBITS	0x24084	0x14088	0x320	0x0	0x3	WA	4
.bss	NOBITS	0x243a4	0x143a8	0x2508	0x0	0x3	WA	4
.ARM.attributes	ARM_ATTRIBUTES	0x0	0x143a8	0x10	0x0	0x0		1
.shstrtab	STRTAB	0x0	0x143b8	0x5d	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x8000	0x8000	0x13ba8	0x13ba8	6.1005	0x5	R E	0x8000	.init .text .fini .rodata
LOAD	0x14004	0x24004	0x24000	0x3a4	0xa8a8	4.3647	0x6	RW	0x8000	.init_array .fini_array .got .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 23, 2024 16:51:25.276844025 CEST	55764	53	192.168.2.15	8.8.8.8
Apr 23, 2024 16:51:25.381885052 CEST	53	55764	8.8.8.8	192.168.2.15
Apr 23, 2024 16:51:25.381987095 CEST	55764	53	192.168.2.15	8.8.8.8
Apr 23, 2024 16:51:25.382034063 CEST	55764	53	192.168.2.15	8.8.8.8
Apr 23, 2024 16:51:25.382067919 CEST	55764	53	192.168.2.15	8.8.8.8
Apr 23, 2024 16:51:25.486860037 CEST	53	55764	8.8.8.8	192.168.2.15
Apr 23, 2024 16:51:25.486879110 CEST	53	55764	8.8.8.8	192.168.2.15
Apr 23, 2024 16:51:25.486951113 CEST	53	55764	8.8.8.8	192.168.2.15
Apr 23, 2024 16:51:25.486963034 CEST	53	55764	8.8.8.8	192.168.2.15
Apr 23, 2024 16:51:25.486999989 CEST	55764	53	192.168.2.15	8.8.8.8
Apr 23, 2024 16:51:25.487024069 CEST	55764	53	192.168.2.15	8.8.8.8
Apr 23, 2024 16:51:27.487539053 CEST	53	55764	8.8.8.8	192.168.2.15
Apr 23, 2024 16:51:27.487751961 CEST	55764	53	192.168.2.15	8.8.8.8
Apr 23, 2024 16:51:27.592654943 CEST	53	55764	8.8.8.8	192.168.2.15

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Apr 23, 2024 16:51:25.382034063 CEST	192.168.2.15	8.8.8.8	0x4ef8	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Apr 23, 2024 16:51:25.382067919 CEST	192.168.2.15	8.8.8.8	0xf164	Standard query (0)	daisy.ubuntu.com	28	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Apr 23, 2024 16:51:25.486963034 CEST	8.8.8.8	192.168.2.15	0x4ef8	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false
Apr 23, 2024 16:51:25.486963034 CEST	8.8.8.8	192.168.2.15	0x4ef8	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: 2QufQlF1Rv.elf PID: 5826, Parent PID: 5749

General

Start time (UTC):	14:51:22
Start date (UTC):	23/04/2024
Path:	/tmp/2QufQlF1Rv.elf
Arguments:	/tmp/2QufQlF1Rv.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

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 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 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

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Warning!

Linux Analysis Report 2QufQlF1Rv.elf

Overview

General Information

Detection

Signatures

Classification

Analysis Advice

General Information

Warnings

Runtime Messages

Process Tree

Yara Signatures

Snort Signatures

Joe Sandbox Signatures

AV Detection

Spreading

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

World Map of Contacted 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

DNS Queries

DNS Answers

System Behavior

Analysis Process: 2QufQlF1Rv.elf PID: 5826, Parent PID: 5749

General

Chronological Activities

Linux Analysis Report
2QufQlF1Rv.elf