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Linux Analysis Report
EefULigFg1.elf

Overview

General Information

Sample name:	EefULigFg1.elf renamed because original name is a hash value
Original sample name:	a17e62fd9100ee258b9cbe18e477bef8.elf
Analysis ID:	1532251
MD5:	a17e62fd9100ee258b9cbe18e477bef8
SHA1:	1b198f2180144f154ca945b6cf3c375727031b1d
SHA256:	6945c02b5122acc7d235116184a886f566787cf6b31327eea5eab27196f40e89
Tags:	32armelfgafgyt
Infos:

Detection

Mirai

Score:	84
Range:	0 - 100
Whitelisted:	false

Signatures

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected Mirai

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

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:	1532251
Start date and time:	2024-10-12 22:52:16 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 28s
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:	EefULigFg1.elf renamed because original name is a hash value
Original Sample Name:	a17e62fd9100ee258b9cbe18e477bef8.elf
Detection:	MAL
Classification:	mal84.troj.evad.linELF@0/0@2/0

Runtime Messages

Command:	/tmp/EefULigFg1.elf
PID:	5528
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

EefULigFg1.elf (PID: 5528, Parent: 5446, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/EefULigFg1.elf

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
5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp	JoeSecurity_Mirai_9	Yara detected Mirai	Joe Security
5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x11050:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11064:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11078:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1108c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x110a0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x110b4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x110c8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x110dc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x110f0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11104:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11118:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1112c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11140:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11154:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11168:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1117c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11190:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x111a4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x111b8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x111cc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x111e0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x115a8:$a: 53 65 6C 66 20 52 65 70 20 46 75 63 6B 69 6E 67 20 4E 65 54 69 53 20 61 6E 64
5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp	Linux_Trojan_Mirai_0bce98a2	unknown	unknown	0x11f44:$a: 4B 52 41 00 46 47 44 43 57 4E 56 00 48 57 43 4C 56 47 41 4A
5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp	Mirai_Botnet_Malware	Detects Mirai Botnet Malware	Florian Roth	0x11eec:$x2: /dev/misc/watchdog 0x11edc:$x3: /dev/watchdog 0x12158:$s1: LCOGQGPTGP 0x11f50:$s5: HWCLVGAJ
Process Memory Space: EefULigFg1.elf PID: 5528	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
Process Memory Space: EefULigFg1.elf PID: 5528	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
Process Memory Space: EefULigFg1.elf PID: 5528	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x1141b:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1142f:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11443:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11457:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1146b:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1147f:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11493:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x114a7:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x114bb:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x114cf:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x114e3:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x114f7:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1150b:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1151f:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11533:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11547:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1155b:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1156f:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11583:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11597:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x115ab:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
Process Memory Space: EefULigFg1.elf PID: 5528	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x118d9:$a: 53 65 6C 66 20 52 65 70 20 46 75 63 6B 69 6E 67 20 4E 65 54 69 53 20 61 6E 64
Click to see the 6 entries

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: EefULigFg1.elf	Virustotal: Detection: 36%			Perma Link
Source: EefULigFg1.elf	ReversingLabs: Detection: 36%

Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1

Source: global traffic

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

Source: EefULigFg1.elf, 5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp	String found in binary or memory: http://185.196.10.215/bins/mips;
Source: EefULigFg1.elf, 5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp	String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: EefULigFg1.elf, 5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp	String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/
Source: EefULigFg1.elf	String found in binary or memory: http://upx.sf.net

System Summary

Malicious sample detected (through community Yara rule)

Source: 5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
Source: 5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_0bce98a2 Author: unknown
Source: 5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp, type: MEMORY	Matched rule: Detects Mirai Botnet Malware Author: Florian Roth
Source: Process Memory Space: EefULigFg1.elf PID: 5528, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: EefULigFg1.elf PID: 5528, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown

Source: LOAD without section mappings

Program segment: 0x8000

Source: 5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: 5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = aa4aee9f3d6bedd8234eaf8778895a0f5d71c42b21f2a428f01f121e85704e8e, id = ea92cca8-bba7-4a1c-9b88-a2d051ad0021, last_modified = 2021-09-16
Source: 5528.1.00007f4c34017000.00007f4c3402a000.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: 5528.1.00007f4c34017000.00007f4c3402a000.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: Process Memory Space: EefULigFg1.elf PID: 5528, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: Process Memory Space: EefULigFg1.elf PID: 5528, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = aa4aee9f3d6bedd8234eaf8778895a0f5d71c42b21f2a428f01f121e85704e8e, id = ea92cca8-bba7-4a1c-9b88-a2d051ad0021, last_modified = 2021-09-16

Source: classification engine

Classification label: mal84.troj.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 3.94 Copyright (C) 1996-2017 the UPX Team. All Rights Reserved. $

Source: EefULigFg1.elf

Submission file: segment LOAD with 7.9546 entropy (max. 8.0)

Source: /tmp/EefULigFg1.elf (PID: 5528)

Queries kernel information via 'uname':

Jump to behavior

Source: EefULigFg1.elf, 5528.1.00007ffcf24c4000.00007ffcf24e5000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/EefULigFg1.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/EefULigFg1.elf
Source: EefULigFg1.elf, 5528.1.00005583b9646000.00005583b9814000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: EefULigFg1.elf, 5528.1.00005583b9646000.00005583b9814000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: EefULigFg1.elf, 5528.1.00007ffcf24c4000.00007ffcf24e5000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: EefULigFg1.elf, 5528.1.00007ffcf24c4000.00007ffcf24e5000.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: 5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: EefULigFg1.elf PID: 5528, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: 5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: EefULigFg1.elf PID: 5528, type: MEMORYSTR

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

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
EefULigFg1.elf	37%	Virustotal		Browse
EefULigFg1.elf	37%	ReversingLabs	Linux.Trojan.Mirai

Dropped Files

⊘No Antivirus matches

Domains

Source	Detection	Scanner	Label	Link
daisy.ubuntu.com	0%	Virustotal		Browse

URLs

Source	Detection	Scanner	Label
http://upx.sf.net	0%	URL Reputation	safe
http://schemas.xmlsoap.org/soap/encoding/	0%	URL Reputation	safe
http://schemas.xmlsoap.org/soap/encoding/	0%	URL Reputation	safe
http://schemas.xmlsoap.org/soap/envelope/	0%	URL Reputation	safe

Domains and IPs

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
daisy.ubuntu.com	162.213.35.24	true	false	0%, Virustotal, Browse	unknown

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://upx.sf.net	EefULigFg1.elf	true	URL Reputation: safe	unknown
http://185.196.10.215/bins/mips;	EefULigFg1.elf, 5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp	false		unknown
http://schemas.xmlsoap.org/soap/encoding/	EefULigFg1.elf, 5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp	false	URL Reputation: safe URL Reputation: safe	unknown
http://schemas.xmlsoap.org/soap/envelope/	EefULigFg1.elf, 5528.1.00007f4c34017000.00007f4c3402a000.r-x.sdmp	false	URL Reputation: safe	unknown

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	Mf9dMcU3qj.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	JnC2t6WhUf.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	na.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	na.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	na.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	na.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	na.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	na.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	na.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	na.elf	Get hash	malicious	Mirai	Browse	162.213.35.24

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 (GNU/Linux), statically linked, no section header
Entropy (8bit):	7.951625794483295
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	EefULigFg1.elf
File size:	32'228 bytes
MD5:	a17e62fd9100ee258b9cbe18e477bef8
SHA1:	1b198f2180144f154ca945b6cf3c375727031b1d
SHA256:	6945c02b5122acc7d235116184a886f566787cf6b31327eea5eab27196f40e89
SHA512:	a9b396fb4f19d0888db7aa2e958cfc729577afeb388ae499ca631bf84be4b160e0f47026afd6f7026cebdeaa43c4fd97eb1f36b2d5401776b67316a6adb738ce
SSDEEP:	768:yNkrY58efARVj5dYpIOBJVqrPJD2gG6R29q3UELj1:7rqL+zOiDjRbLZ
TLSH:	27E2E1BBC502AC32E7722031F428425EBA38ABB5E17F355357780AAC74924E20CBC596
File Content Preview:	.ELF..............(.........4...........4. ...(......................\|...\|...............M..........................Q.td............................>. NUPX!..................S..........?.E.h;....#..$..1)...91V....K.....E...%.C)?.....n.....;.r>.?..:rw...

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:	0xead0
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	0x7cbd	0x7cbd	7.9546	0x5	R E	0x8000
LOAD	0x4d9c	0x2cd9c	0x2cd9c	0x0	0x0	0.0000	0x6	RW	0x8000
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Network Port Distribution

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 12, 2024 22:53:03.674259901 CEST	35323	53	192.168.2.15	1.1.1.1
Oct 12, 2024 22:53:03.674314976 CEST	56206	53	192.168.2.15	1.1.1.1
Oct 12, 2024 22:53:03.682363033 CEST	53	56206	1.1.1.1	192.168.2.15
Oct 12, 2024 22:53:03.682615042 CEST	53	35323	1.1.1.1	192.168.2.15

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Oct 12, 2024 22:53:03.674259901 CEST	192.168.2.15	1.1.1.1	0xad7e	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Oct 12, 2024 22:53:03.674314976 CEST	192.168.2.15	1.1.1.1	0xb975	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
Oct 12, 2024 22:53:03.682615042 CEST	1.1.1.1	192.168.2.15	0xad7e	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false
Oct 12, 2024 22:53:03.682615042 CEST	1.1.1.1	192.168.2.15	0xad7e	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: EefULigFg1.elf PID: 5528, Parent PID: 5446

General

Start time (UTC):	20:53:01
Start date (UTC):	12/10/2024
Path:	/tmp/EefULigFg1.elf
Arguments:	/tmp/EefULigFg1.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

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

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report EefULigFg1.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

AV Detection

Networking

System Summary

Data Obfuscation

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

Screenshots

Thumbnails

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: EefULigFg1.elf PID: 5528, Parent PID: 5446

General

Chronological Activities

Linux Analysis Report
EefULigFg1.elf