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Linux Analysis Report
byte.ppc.elf

Overview

General Information

Sample name:	byte.ppc.elf
Analysis ID:	1580822
MD5:	043e2d34738d4ca79e925ce698ffc322
SHA1:	fd0cef1bb3c2aa48a6129907141bc47aad6d99c2
SHA256:	8839604630cffc6f3ee31aaa8c20f65452036349b047978adcf9149a67f50511
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	52
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

Sample is packed with UPX

ELF contains segments with high entropy indicating compressed/encrypted content

Sample contains only a LOAD segment without any section mappings

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

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

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1580822
Start date and time:	2024-12-26 10:12:08 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 21s
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:	byte.ppc.elf
Detection:	MAL
Classification:	mal52.evad.linELF@0/0@2/0

Runtime Messages

Command:	/tmp/byte.ppc.elf
PID:	5432
Exit Code:	134
Exit Code Info:	SIGABRT (6) Abort signal from abort
Killed:	False
Standard Output:
Standard Error:	qemu: fatal: Tried to call a TRAP NIP 1000a0a4 LR 1000a018 CTR 00000000 XER 00000000 CPU#0 MSR 00006940 HID0 00000000 HF 00006000 iidx 2 didx 2 TB 00000055 240449845394 GPR00 000000000000005a 00000000ffffece0 0000000000000000 0000000000000009 GPR04 000000000000a947 0000000000000003 0000000000000012 0000000000000003 GPR08 0000000000000000 0000000000000000 0000000000000000 0000000000000000 GPR12 0000000000000000 0000000000000000 0000000000000000 0000000000000000 GPR16 0000000000000000 0000000000000000 0000000000000000 0000000000000000 GPR20 0000000000000000 0000000000001044 000000001000a104 0000000000000000 GPR24 0000000000000000 0000000010000000 00000000ffffedbc 0000000000000003 GPR28 000000000000b148 00000000ff7f2000 00000000fffff000 0000000010009da4 CR 50000002 [ GO - - - - - - E ] RES ffffffff FPR00 0000000000000000 0000000000000000 0000000000000000 0000000000000000 FPR04 0000000000000000 0000000000000000 0000000000000000 0000000000000000 FPR08 0000000000000000 0000000000000000 0000000000000000 0000000000000000 FPR12 0000000000000000 0000000000000000 0000000000000000 0000000000000000 FPR16 0000000000000000 0000000000000000 0000000000000000 0000000000000000 FPR20 0000000000000000 0000000000000000 0000000000000000 0000000000000000 FPR24 0000000000000000 0000000000000000 0000000000000000 0000000000000000 FPR28 0000000000000000 0000000000000000 0000000000000000 0000000000000000 FPSCR 00000000

Process Tree

system is lnxubuntu20

byte.ppc.elf (PID: 5432, Parent: 5357, MD5: ae65271c943d3451b7f026d1fadccea6) Arguments: /tmp/byte.ppc.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: byte.ppc.elf

ReversingLabs: Detection: 36%

Source: global traffic

DNS traffic detected: DNS query: daisy.ubuntu.com

Source: byte.ppc.elf

String found in binary or memory: http://upx.sf.net

Source: LOAD without section mappings

Program segment: 0x10000000

Source: Initial sample	String containing 'busybox' found: busybox
Source: Initial sample	String containing 'busybox' found: busyboxre

Source: classification engine

Classification label: mal52.evad.linELF@0/0@2/0

Data Obfuscation

Sample is packed with UPX

Source: initial sample	String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample	String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample	String containing UPX found: $Id: UPX 3.96 Copyright (C) 1996-2020 the UPX Team. All Rights Reserved. $

Source: byte.ppc.elf

Submission file: segment LOAD with 7.7808 entropy (max. 8.0)

Source: /tmp/byte.ppc.elf (PID: 5432)

Queries kernel information via 'uname':

Jump to behavior

Source: byte.ppc.elf, 5432.1.000055d9834a0000.000055d98352f000.rw-.sdmp	Binary or memory string: !/etc/qemu-binfmt/ppc11!hotpluggableq
Source: byte.ppc.elf, 5432.1.000055d9834a0000.000055d98352f000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/ppc
Source: byte.ppc.elf, 5432.1.00007ffe35bcd000.00007ffe35bee000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-ppc
Source: byte.ppc.elf, 5432.1.00007ffe35bcd000.00007ffe35bee000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-ppc/tmp/byte.ppc.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/byte.ppc.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	11 Obfuscated Files or Information	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
byte.ppc.elf	37%	ReversingLabs	Linux.Trojan.Mirai

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

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://upx.sf.net	byte.ppc.elf	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	xd.arm6.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	telnet.arm6.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	telnet.mpsl.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	telnet.arm5.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	xd.m68k.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	main_spc.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	main_arm6.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	Aqua.dbg.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	Aqua.dbg.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 MSB executable, PowerPC or cisco 4500, version 1 (GNU/Linux), statically linked, no section header
Entropy (8bit):	7.777973178100793
TrID:	ELF Executable and Linkable format (Linux) (4029/14) 50.16% ELF Executable and Linkable format (generic) (4004/1) 49.84%
File name:	byte.ppc.elf
File size:	43'640 bytes
MD5:	043e2d34738d4ca79e925ce698ffc322
SHA1:	fd0cef1bb3c2aa48a6129907141bc47aad6d99c2
SHA256:	8839604630cffc6f3ee31aaa8c20f65452036349b047978adcf9149a67f50511
SHA512:	58140fcc4a4a599bf38f3d92eb9a74690648894a4191b407bc0a21de949c8a6af2c1f7b8fa60f18f138f0829acd96f19a936a2d18740e6e5252c1d34855d836a
SSDEEP:	768:mPjKbUFqs+DBZw6EoKRRduE/XKP3R5gI967Utmgs1dcPeHOVgRARutbayE:MV6NZNEfdb/XKP3vzS1dcPLBoa3
TLSH:	39130249EEAA3509F6CDED35C3863E40B5CF490A5536BEDE93049F8F0892581D7A3A0D
File Content Preview:	.ELF...........................4.........4. ...(.......................W...W..............................c.........dt.Q...............................kUPX!..........A...A........d....m.$..ELF.................4.?... ...(...}.........2...l.........._w.....

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, big endian
Version:	1 (current)
Machine:	PowerPC
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - Linux
ABI Version:	0
Entry Point Address:	0x10009da0
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	0
Section Header Size:	40
Number of Section Headers:	0
Header String Table Index:	0

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align
LOAD	0x0	0x10000000	0x10000000	0xa957	0xa957	7.7808	0x5	R E	0x10000
LOAD	0x0	0x10010000	0x10010000	0x0	0x163fc	0.0000	0x6	RW	0x10000
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

Network Port Distribution

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Dec 26, 2024 10:12:54.878698111 CET	57269	53	192.168.2.13	8.8.8.8
Dec 26, 2024 10:12:54.878751993 CET	40949	53	192.168.2.13	8.8.8.8
Dec 26, 2024 10:12:55.001189947 CET	53	57269	8.8.8.8	192.168.2.13
Dec 26, 2024 10:12:55.001210928 CET	53	40949	8.8.8.8	192.168.2.13

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Dec 26, 2024 10:12:54.878698111 CET	192.168.2.13	8.8.8.8	0x1133	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Dec 26, 2024 10:12:54.878751993 CET	192.168.2.13	8.8.8.8	0xd2aa	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
Dec 26, 2024 10:12:55.001189947 CET	8.8.8.8	192.168.2.13	0x1133	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false
Dec 26, 2024 10:12:55.001189947 CET	8.8.8.8	192.168.2.13	0x1133	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: byte.ppc.elf PID: 5432, Parent PID: 5357

General

Start time (UTC):	09:12:52
Start date (UTC):	26/12/2024
Path:	/tmp/byte.ppc.elf
Arguments:	/tmp/byte.ppc.elf
File size:	5388968 bytes
MD5 hash:	ae65271c943d3451b7f026d1fadccea6

Description:	Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit. This is common behavior that can be used across different platforms and the network to evade defenses.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Creation, File: File Metadata, Module: Module Load, Process: OS API Execution, Process: Process Creation, Script: Script Execution, WMI: WMI Creation, Windows Registry: Windows Registry Key Creation
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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Linux Analysis Report byte.ppc.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

Data Obfuscation

Hooking and other Techniques for Hiding and Protection

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

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

Static ELF Info

ELF header

Program Segments

Network Behavior

Network Port Distribution

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: byte.ppc.elf PID: 5432, Parent PID: 5357

General

Chronological Activities

Linux Analysis Report
byte.ppc.elf