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Linux Analysis Report
fenty.arm6.elf

Overview

General Information

Sample name:	fenty.arm6.elf
Analysis ID:	1584352
MD5:	87446a8c4955672ca62b7d6ebb4aa2c0
SHA1:	d41fb705eb8b2031b916e63bcd4152fe473eb854
SHA256:	00ab48b39b173a5c90f5dcb460b9e326d2fcf96abbde1aac44ddea06d690e7b5
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	60
Range:	0 - 100
Whitelisted:	false

Signatures

Malicious sample detected (through community Yara rule)

Yara detected Mirai

Sample is packed with UPX

ELF contains segments with high entropy indicating compressed/encrypted content

Executes the "rm" command used to delete files or directories

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)

Yara signature match

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1584352
Start date and time:	2025-01-05 09:05:54 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 37s
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:	fenty.arm6.elf
Detection:	MAL
Classification:	mal60.troj.evad.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/fenty.arm6.elf
PID:	6252
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

fenty.arm6.elf (PID: 6252, Parent: 6176, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/fenty.arm6.elf

dash New Fork (PID: 6279, Parent: 4331)

rm (PID: 6279, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.9eT68lbcLb /tmp/tmp.kXix6obJFN /tmp/tmp.PNRzjzBV5W

dash New Fork (PID: 6280, Parent: 4331)

rm (PID: 6280, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.9eT68lbcLb /tmp/tmp.kXix6obJFN /tmp/tmp.PNRzjzBV5W

cleanup

Malware Threat Intel

Provided by

Name	Description	Attribution	Blogpost URLs	Link
Mirai	Mirai is one of the first significant botnets targeting exposed networking devices running Linux. Found in August 2016 by MalwareMustDie, its name means "future" in Japanese. Nowadays it targets a wide range of networked embedded devices such as IP cameras, home routers (many vendors involved), and other IoT devices. Since the source code was published on "Hack Forums" many variants of the Mirai family appeared, infecting mostly home networks all around the world.	No Attribution	http://osint.bambenekconsulting.com/feeds/ http://www.simonroses.com/2016/10/mirai-ddos-botnet-source-code-binary-analysis/ https://blog.malwaremustdie.org/2020/02/mmd-0065-2021-linuxmirai-fbot-re.html https://blog.netlab.360.com/another-lilin-dvr-0-day-being-used-to-spread-mirai-en/ https://blog.netlab.360.com/mirai_ptea-botnet-is-exploiting-undisclosed-kguard-dvr-vulnerability-en/	https://malpedia.caad.fkie.fraunhofer.de/details/elf.mirai

Yara Signatures

Memory Dumps

Source	Rule	Description	Author	Strings
6252.1.00007f7260017000.00007f7260033000.r-x.sdmp	JoeSecurity_Mirai_9	Yara detected Mirai	Joe Security
6252.1.00007f7260017000.00007f7260033000.r-x.sdmp	Linux_Trojan_Mirai_0bce98a2	unknown	unknown	0x1a634:$a: 4B 52 41 00 46 47 44 43 57 4E 56 00 48 57 43 4C 56 47 41 4A
6252.1.00007f7260017000.00007f7260033000.r-x.sdmp	Mirai_Botnet_Malware	Detects Mirai Botnet Malware	Florian Roth	0x1a468:$x2: /dev/misc/watchdog 0x1a458:$x3: /dev/watchdog 0x1a4a4:$x3: /dev/watchdog 0x1a8d0:$s1: LCOGQGPTGP 0x1a6e4:$s3: CFOKLKQVPCVMP 0x1a6c8:$s4: QWRGPTKQMP 0x1a640:$s5: HWCLVGAJ

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

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: 54.171.230.55
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: fenty.arm6.elf

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

Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 33606
Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 33606 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

System Summary

Malicious sample detected (through community Yara rule)

Source: 6252.1.00007f7260017000.00007f7260033000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_0bce98a2 Author: unknown
Source: 6252.1.00007f7260017000.00007f7260033000.r-x.sdmp, type: MEMORY	Matched rule: Detects Mirai Botnet Malware Author: Florian Roth

Source: LOAD without section mappings

Program segment: 0x8000

Source: Initial sample

String containing 'busybox' found: busybox

Source: 6252.1.00007f7260017000.00007f7260033000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_0bce98a2 reference_sample = 1b20df8df7f84ad29d81ccbe276f49a6488c2214077b13da858656c027531c80, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 993d0d2e24152d0fb72cc5d5add395bed26671c3935f73386341398b91cb0e6e, id = 0bce98a2-113e-41e1-95c9-9e1852b26142, last_modified = 2021-09-16
Source: 6252.1.00007f7260017000.00007f7260033000.r-x.sdmp, type: MEMORY	Matched rule: Mirai_Botnet_Malware date = 2016-10-04, hash5 = 420bf9215dfb04e5008c5e522eee9946599e2b323b17f17919cd802ebb012175, hash4 = 2efa09c124f277be2199bee58f49fc0ce6c64c0bef30079dfb3d94a6de492a69, hash3 = 20683ff7a5fec1237fc09224af40be029b9548c62c693844624089af568c89d4, hash2 = 05c78c3052b390435e53a87e3d31e9fb17f7c76bb4df2814313bca24735ce81c, hash1 = 05c78c3052b390435e53a87e3d31e9fb17f7c76bb4df2814313bca24735ce81c, author = Florian Roth, description = Detects Mirai Botnet Malware, hash10 = c61bf95146c68bfbbe01d7695337ed0e93ea759f59f651799f07eecdb339f83f, hash11 = d9573c3850e2ae35f371dff977fc3e5282a5e67db8e3274fd7818e8273fd5c89, hash12 = f1100c84abff05e0501e77781160d9815628e7fd2de9e53f5454dbcac7c84ca5, hash9 = bf0471b37dba7939524a30d7d5afc8fcfb8d4a7c9954343196737e72ea4e2dc4, hash8 = 89570ae59462e6472b6769545a999bde8457e47ae0d385caaa3499ab735b8147, hash7 = 70bb0ec35dd9afcfd52ec4e1d920e7045dc51dca0573cd4c753987c9d79405c0, hash6 = 62cdc8b7fffbaf5683a466f6503c03e68a15413a90f6afd5a13ba027631460c6, reference = Internal Research, license = https://creativecommons.org/licenses/by-nc/4.0/, hash13 = fb713ccf839362bf0fbe01aedd6796f4d74521b133011b408e42c1fd9ab8246b

Source: classification engine

Classification label: mal60.troj.evad.linELF@0/0@0/0

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 3.94 Copyright (C) 1996-2017 the UPX Team. All Rights Reserved. $

Source: /usr/bin/dash (PID: 6279)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.9eT68lbcLb /tmp/tmp.kXix6obJFN /tmp/tmp.PNRzjzBV5W			Jump to behavior
Source: /usr/bin/dash (PID: 6280)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.9eT68lbcLb /tmp/tmp.kXix6obJFN /tmp/tmp.PNRzjzBV5W			Jump to behavior

Source: fenty.arm6.elf

Submission file: segment LOAD with 7.7923 entropy (max. 8.0)

Source: /tmp/fenty.arm6.elf (PID: 6252)

Queries kernel information via 'uname':

Jump to behavior

Source: fenty.arm6.elf, 6252.1.00007fffd324a000.00007fffd326b000.rw-.sdmp	Binary or memory string: +x86_64/usr/bin/qemu-arm/tmp/fenty.arm6.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/fenty.arm6.elf
Source: fenty.arm6.elf, 6252.1.000055837eadc000.000055837ecca000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: fenty.arm6.elf, 6252.1.000055837eadc000.000055837ecca000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: fenty.arm6.elf, 6252.1.00007fffd324a000.00007fffd326b000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: fenty.arm6.elf, 6252.1.00007fffd324a000.00007fffd326b000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match

File source: 6252.1.00007f7260017000.00007f7260033000.r-x.sdmp, type: MEMORY

Remote Access Functionality

Yara detected Mirai

Source: Yara match

File source: 6252.1.00007f7260017000.00007f7260033000.r-x.sdmp, type: MEMORY

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 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	1 File Deletion	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
fenty.arm6.elf	3%	Virustotal		Browse
fenty.arm6.elf	11%	ReversingLabs

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	Antivirus Detection	Reputation
http://upx.sf.net	fenty.arm6.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
54.171.230.55	unknown	United States	16509	AMAZON-02US	false
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
54.171.230.55	Mozi.m.elf	Get hash	malicious	Unknown	Browse
	byte.mpsl.elf	Get hash	malicious	Mirai	Browse
	Space.m68k.elf	Get hash	malicious	Mirai	Browse
	la.bot.arc.elf	Get hash	malicious	Mirai	Browse
	main.arm.elf	Get hash	malicious	Mirai	Browse
	i686.elf	Get hash	malicious	Mirai	Browse
	Space.x86.elf	Get hash	malicious	Unknown	Browse
	Space.m68k.elf	Get hash	malicious	Unknown	Browse
	Fantazy.arc.elf	Get hash	malicious	Unknown	Browse
	bot.ppc.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse
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	h.elf	Get hash	malicious	Gafgyt	Browse
	Mozi.m.elf	Get hash	malicious	Unknown	Browse
	byte.mpsl.elf	Get hash	malicious	Mirai	Browse
	main_mips.elf	Get hash	malicious	Mirai	Browse
	i.elf	Get hash	malicious	Gafgyt	Browse
	sshd.elf	Get hash	malicious	Unknown	Browse
	fenty.arm6.elf	Get hash	malicious	Mirai	Browse
	fenty.arm4.elf	Get hash	malicious	Mirai	Browse
	Space.m68k.elf	Get hash	malicious	Mirai	Browse
	armv4eb.elf	Get hash	malicious	Unknown	Browse
91.189.91.42	fenty.arm5.elf	Get hash	malicious	Mirai	Browse
	h.elf	Get hash	malicious	Gafgyt	Browse
	c.elf	Get hash	malicious	Gafgyt	Browse
	Mozi.m.elf	Get hash	malicious	Unknown	Browse
	byte.mpsl.elf	Get hash	malicious	Mirai	Browse
	main_mips.elf	Get hash	malicious	Mirai	Browse
	i.elf	Get hash	malicious	Gafgyt	Browse
	sshd.elf	Get hash	malicious	Unknown	Browse
	fenty.arm6.elf	Get hash	malicious	Mirai	Browse
	fenty.arm4.elf	Get hash	malicious	Mirai	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	fenty.arm5.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	h.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	c.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	a.elf	Get hash	malicious	Gafgyt	Browse	185.125.190.26
	Mozi.m.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	byte.mpsl.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main_mips.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	i.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	sshd.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	fenty.arm6.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
CANONICAL-ASGB	fenty.arm5.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	h.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	c.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	a.elf	Get hash	malicious	Gafgyt	Browse	185.125.190.26
	Mozi.m.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	byte.mpsl.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main_mips.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	i.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	sshd.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	fenty.arm6.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
AMAZON-02US	fenty.arm5.elf	Get hash	malicious	Mirai	Browse	34.249.145.219
	c.elf	Get hash	malicious	Gafgyt	Browse	34.249.145.219
	17360626254f6ab0798f0d71fe81e2d058a575b873a7088f40695d7fd8031d0961d3a3694a780.dat-decoded.exe	Get hash	malicious	Remcos	Browse	108.139.47.33
	Mozi.m.elf	Get hash	malicious	Unknown	Browse	54.171.230.55
	2.elf	Get hash	malicious	Unknown	Browse	157.175.218.245
	byte.mpsl.elf	Get hash	malicious	Mirai	Browse	54.171.230.55
	https://bit.ly/3VYGxmh	Get hash	malicious	CAPTCHA Scam ClickFix, Phisher	Browse	18.245.31.49
	Space.m68k.elf	Get hash	malicious	Mirai	Browse	54.171.230.55
	armv5l.elf	Get hash	malicious	Unknown	Browse	44.255.115.105
	la.bot.arc.elf	Get hash	malicious	Mirai	Browse	54.171.230.55
INIT7CH	fenty.arm5.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	h.elf	Get hash	malicious	Gafgyt	Browse	109.202.202.202
	c.elf	Get hash	malicious	Gafgyt	Browse	109.202.202.202
	Mozi.m.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	byte.mpsl.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	main_mips.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	i.elf	Get hash	malicious	Gafgyt	Browse	109.202.202.202
	sshd.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	fenty.arm6.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	fenty.arm4.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 32-bit LSB executable, ARM, EABI4 version 1 (GNU/Linux), statically linked, no section header
Entropy (8bit):	7.7908538802676555
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	fenty.arm6.elf
File size:	56'752 bytes
MD5:	87446a8c4955672ca62b7d6ebb4aa2c0
SHA1:	d41fb705eb8b2031b916e63bcd4152fe473eb854
SHA256:	00ab48b39b173a5c90f5dcb460b9e326d2fcf96abbde1aac44ddea06d690e7b5
SHA512:	948a39750dd8bb2ec6490d7c8b156da8c01e591a5203e1317fd7b5f16b4dcaefa7aca33af81f4f7d888640c42ab2d3338e578d5a46ae5dc5ee2427eec46a4f3b
SSDEEP:	1536:I1jqtblmjGGaXaUbEGXeiS3xPFnPdXuZSVDvE9l:7mygaeiSX1ewlvEf
TLSH:	5F4302A06785851CEB5A5673D83F4FD5E7E80A3804C4BE4BB98D0E1826377BEC804E5C
File Content Preview:	.ELF..............(......R..4...........4. ...(.....................s...s................h...h...h..................Q.td..............................ewGeg!....................Z.........ELF.d.?..(.~.T.[4..X....... ...{....-&...0......_.......9.]..........

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 - Linux
ABI Version:	0
Entry Point Address:	0x152f8
Flags:	0x4000002
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	0x8000	0x8000	0xdc73	0xdc73	7.7923	0x5	R E	0x8000
LOAD	0x68a4	0x368a4	0x368a4	0x0	0x0	0.0000	0x6	RW	0x8000
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
Jan 5, 2025 09:06:48.342654943 CET	43928	443	192.168.2.23	91.189.91.42
Jan 5, 2025 09:06:53.717993021 CET	42836	443	192.168.2.23	91.189.91.43
Jan 5, 2025 09:06:54.354866028 CET	443	33606	54.171.230.55	192.168.2.23
Jan 5, 2025 09:06:54.355149984 CET	33606	443	192.168.2.23	54.171.230.55
Jan 5, 2025 09:06:54.360018969 CET	443	33606	54.171.230.55	192.168.2.23
Jan 5, 2025 09:06:55.253778934 CET	42516	80	192.168.2.23	109.202.202.202
Jan 5, 2025 09:07:08.563988924 CET	43928	443	192.168.2.23	91.189.91.42
Jan 5, 2025 09:07:20.850311995 CET	42836	443	192.168.2.23	91.189.91.43
Jan 5, 2025 09:07:24.945745945 CET	42516	80	192.168.2.23	109.202.202.202
Jan 5, 2025 09:07:49.518340111 CET	43928	443	192.168.2.23	91.189.91.42

System Behavior

Analysis Process: fenty.arm6.elf PID: 6252, Parent PID: 6176

General

Start time (UTC):	08:06:45
Start date (UTC):	05/01/2025
Path:	/tmp/fenty.arm6.elf
Arguments:	/tmp/fenty.arm6.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: dash PID: 6279, Parent PID: 4331

General

Start time (UTC):	08:06:53
Start date (UTC):	05/01/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6279, Parent PID: 4331

General

Start time (UTC):	08:06:53
Start date (UTC):	05/01/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.9eT68lbcLb /tmp/tmp.kXix6obJFN /tmp/tmp.PNRzjzBV5W
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: dash PID: 6280, Parent PID: 4331

General

Start time (UTC):	08:06:53
Start date (UTC):	05/01/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6280, Parent PID: 4331

General

Start time (UTC):	08:06:53
Start date (UTC):	05/01/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.9eT68lbcLb /tmp/tmp.kXix6obJFN /tmp/tmp.PNRzjzBV5W
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

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 delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary (ex: Ingress Tool Transfer ) may leave traces to indicate to what was done within a network and how. Removal of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary's footprint.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Deletion
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 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 fenty.arm6.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Malware Threat Intel

Yara Signatures

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

Networking

System Summary

Data Obfuscation

Persistence and Installation Behavior

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Stealing of Sensitive Information

Remote Access Functionality

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

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: fenty.arm6.elf PID: 6252, Parent PID: 6176

General

Chronological Activities

Analysis Process: dash PID: 6279, Parent PID: 4331

General

Chronological Activities

Analysis Process: rm PID: 6279, Parent PID: 4331

General

Chronological Activities

Analysis Process: dash PID: 6280, Parent PID: 4331

General

Chronological Activities

Analysis Process: rm PID: 6280, Parent PID: 4331

General

Chronological Activities

Linux Analysis Report
fenty.arm6.elf