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Linux Analysis Report
main.x86.elf

Overview

General Information

Sample name:	main.x86.elf
Analysis ID:	1584421
MD5:	3fc186dd76e8b4b9f205c7a97a3beebe
SHA1:	7196e6256332b943d6768eff51948e7df44bc1c8
SHA256:	4aca367753f9ab777e4f01df5264c7b48e4d81b489527fa4f3df441df5b5466c
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	84
Range:	0 - 100
Whitelisted:	false

Signatures

Antivirus / Scanner detection for submitted sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected Mirai

Machine Learning detection for sample

Sample deletes itself

Uses dynamic DNS services

Detected TCP or UDP traffic on non-standard ports

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

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

Sample has stripped symbol table

Sample tries to kill a process (SIGKILL)

Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)

Yara signature match

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1584421
Start date and time:	2025-01-05 14:18:10 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 24s
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:	main.x86.elf
Detection:	MAL
Classification:	mal84.troj.evad.linELF@0/0@1/0

Runtime Messages

Command:	/tmp/main.x86.elf
PID:	6238
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

dash New Fork (PID: 6220, Parent: 4331)

rm (PID: 6220, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.5G2IUAyuT0 /tmp/tmp.1wldcfJlCd /tmp/tmp.XWcH3fMtzo

dash New Fork (PID: 6221, Parent: 4331)

cat (PID: 6221, Parent: 4331, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.5G2IUAyuT0

dash New Fork (PID: 6222, Parent: 4331)

head (PID: 6222, Parent: 4331, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 6223, Parent: 4331)

tr (PID: 6223, Parent: 4331, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 6224, Parent: 4331)

cut (PID: 6224, Parent: 4331, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 6225, Parent: 4331)

cat (PID: 6225, Parent: 4331, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.5G2IUAyuT0

dash New Fork (PID: 6226, Parent: 4331)

head (PID: 6226, Parent: 4331, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 6227, Parent: 4331)

tr (PID: 6227, Parent: 4331, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 6228, Parent: 4331)

cut (PID: 6228, Parent: 4331, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 6229, Parent: 4331)

rm (PID: 6229, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.5G2IUAyuT0 /tmp/tmp.1wldcfJlCd /tmp/tmp.XWcH3fMtzo

main.x86.elf (PID: 6238, Parent: 6147, MD5: 3fc186dd76e8b4b9f205c7a97a3beebe) Arguments: /tmp/main.x86.elf

main.x86.elf New Fork (PID: 6239, Parent: 6238)

main.x86.elf New Fork (PID: 6240, Parent: 6239)

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

Initial Sample

Source	Rule	Description	Author	Strings
main.x86.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
main.x86.elf	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0xfa30:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfa44:$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 0xfa58:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfa6c:$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 0xfa80:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfa94:$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 0xfaa8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfabc:$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 0xfad0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfae4:$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 0xfaf8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfb0c:$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 0xfb20:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfb34:$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 0xfb48:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfb5c:$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 0xfb70:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfb84:$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 0xfb98:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfbac:$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 0xfbc0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
main.x86.elf	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0xf910:$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
main.x86.elf	Linux_Trojan_Mirai_b14f4c5d	unknown	unknown	0x3d90:$a: 53 31 DB 8B 4C 24 0C 8B 54 24 08 83 F9 01 76 15 66 8B 02 83 E9 02 25 FF FF 00 00 83 C2 02 01 C3 83 F9 01 77 EB 49 75 05 0F BE 02 01 C3
main.x86.elf	Linux_Trojan_Mirai_5f7b67b8	unknown	unknown	0x8703:$a: 89 38 83 CF FF 89 F8 5A 59 5F C3 57 56 83 EC 04 8B 7C 24 10 8B 4C
main.x86.elf	Linux_Trojan_Mirai_88de437f	unknown	unknown	0x5332:$a: 24 08 8B 4C 24 04 85 D2 74 0D 31 C0 89 F6 C6 04 08 00 40 39 D0
main.x86.elf	Linux_Trojan_Mirai_389ee3e9	unknown	unknown	0xb76b:$a: 89 45 00 EB 2C 8B 4B 04 8B 13 8B 7B 18 8B 01 01 02 8B 02 83
main.x86.elf	Linux_Trojan_Mirai_cc93863b	unknown	unknown	0x9fb3:$a: C3 57 8B 44 24 0C 8B 4C 24 10 8B 7C 24 08 F3 AA 8B 44 24 08
main.x86.elf	Linux_Trojan_Mirai_8aa7b5d3	unknown	unknown	0x5302:$a: 8B 4C 24 14 8B 74 24 0C 8B 5C 24 10 85 C9 74 0D 31 D2 8A 04 1A 88
Click to see the 4 entries

Memory Dumps

Source	Rule	Description	Author	Strings
6238.1.0000000008048000.000000000805a000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
6238.1.0000000008048000.000000000805a000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0xfa30:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfa44:$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 0xfa58:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfa6c:$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 0xfa80:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfa94:$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 0xfaa8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfabc:$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 0xfad0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfae4:$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 0xfaf8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfb0c:$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 0xfb20:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfb34:$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 0xfb48:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfb5c:$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 0xfb70:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfb84:$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 0xfb98:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xfbac:$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 0xfbc0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
6238.1.0000000008048000.000000000805a000.r-x.sdmp	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0xf910:$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
6238.1.0000000008048000.000000000805a000.r-x.sdmp	Linux_Trojan_Mirai_b14f4c5d	unknown	unknown	0x3d90:$a: 53 31 DB 8B 4C 24 0C 8B 54 24 08 83 F9 01 76 15 66 8B 02 83 E9 02 25 FF FF 00 00 83 C2 02 01 C3 83 F9 01 77 EB 49 75 05 0F BE 02 01 C3
6238.1.0000000008048000.000000000805a000.r-x.sdmp	Linux_Trojan_Mirai_5f7b67b8	unknown	unknown	0x8703:$a: 89 38 83 CF FF 89 F8 5A 59 5F C3 57 56 83 EC 04 8B 7C 24 10 8B 4C
6238.1.0000000008048000.000000000805a000.r-x.sdmp	Linux_Trojan_Mirai_88de437f	unknown	unknown	0x5332:$a: 24 08 8B 4C 24 04 85 D2 74 0D 31 C0 89 F6 C6 04 08 00 40 39 D0
6238.1.0000000008048000.000000000805a000.r-x.sdmp	Linux_Trojan_Mirai_389ee3e9	unknown	unknown	0xb76b:$a: 89 45 00 EB 2C 8B 4B 04 8B 13 8B 7B 18 8B 01 01 02 8B 02 83
6238.1.0000000008048000.000000000805a000.r-x.sdmp	Linux_Trojan_Mirai_cc93863b	unknown	unknown	0x9fb3:$a: C3 57 8B 44 24 0C 8B 4C 24 10 8B 7C 24 08 F3 AA 8B 44 24 08
6238.1.0000000008048000.000000000805a000.r-x.sdmp	Linux_Trojan_Mirai_8aa7b5d3	unknown	unknown	0x5302:$a: 8B 4C 24 14 8B 74 24 0C 8B 5C 24 10 85 C9 74 0D 31 D2 8A 04 1A 88
Process Memory Space: main.x86.elf PID: 6238	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
Process Memory Space: main.x86.elf PID: 6238	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x5e5:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x5f9:$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 0x60d:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x621:$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 0x635:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x649:$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 0x65d:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x671:$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 0x685:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x699:$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 0x6ad:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x6c1:$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 0x6d5:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x6e9:$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 0x6fd:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x711:$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 0x725:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x739:$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 0x74d:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x761:$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 0x775:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
Process Memory Space: main.x86.elf PID: 6238	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x4cf:$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 7 entries

Suricata Signatures

⊘No Suricata 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: main.x86.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: main.x86.elf

ReversingLabs: Detection: 55%

Machine Learning detection for sample

Source: main.x86.elf

Joe Sandbox ML: detected

Networking

Uses dynamic DNS services

Source: unknown

DNS query: name: unixbot.ddns.net

Source: global traffic

TCP traffic: 192.168.2.23:47296 -> 123.253.61.116:3778

Source: global traffic	TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global traffic	TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global traffic	TCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80

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: 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: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43

Source: global traffic

DNS traffic detected: DNS query: unixbot.ddns.net

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

System Summary

Malicious sample detected (through community Yara rule)

Source: main.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: main.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
Source: main.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_b14f4c5d Author: unknown
Source: main.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_5f7b67b8 Author: unknown
Source: main.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_88de437f Author: unknown
Source: main.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: main.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: main.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Source: 6238.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 6238.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
Source: 6238.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_b14f4c5d Author: unknown
Source: 6238.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_5f7b67b8 Author: unknown
Source: 6238.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_88de437f Author: unknown
Source: 6238.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: 6238.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: 6238.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Source: Process Memory Space: main.x86.elf PID: 6238, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: main.x86.elf PID: 6238, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown

Source: Initial sample	String containing 'busybox' found: /bin/busybox
Source: Initial sample	String containing 'busybox' found: /proc/opendir/proc/%d/exe/proc/%d/maps/bin/busybox/usr/lib/systemd/systemdshellmnt/sys/boot/media/srv/var/run/sbin/lib/etc/dev/telnetsshwatchdogsshd/usr/compress/bin//compress/bin/compress/usr/bashmain_x86main_x86_64main_mipsmain_mipselmain_armmain_arm5main_arm6main_arm7main_ppcmain_m68kmain_sh4main_spchttpdtelnetddropbearencodersystem/root/dvr_gui//root/dvr_app//anko-app//opt//tmp/var/mnt/boot/home/dev/..//root(deleted)(cbot/exe) Killed process: %s, PID: %d

Source: ELF static info symbol of initial sample

.symtab present: no

Source: /tmp/main.x86.elf (PID: 6240)

SIGKILL sent: pid: 2, result: successful

Jump to behavior

Source: main.x86.elf, type: SAMPLE	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: main.x86.elf, type: SAMPLE	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: main.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_b14f4c5d os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = a70d052918dd2fbc66db241da6438015130f0fb6929229bfe573546fe98da817, id = b14f4c5d-054f-46e6-9fa8-3588f1ef68b7, last_modified = 2021-09-16
Source: main.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_5f7b67b8 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 6cb5fb0b7c132e9c11ac72da43278025b60810ea3733c9c6d6ca966163185940, id = 5f7b67b8-3d7b-48a4-8f03-b6f2c92be92e, last_modified = 2021-09-16
Source: main.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_88de437f reference_sample = 8dc745a6de6f319cd6021c3e147597315cc1be02099d78fc8aae94de0e1e4bc6, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = c19eb595c2b444a809bef8500c20342c9f46694d3018e268833f9b884133a1ea, id = 88de437f-9c98-4e1d-96c0-7b433c99886a, last_modified = 2021-09-16
Source: main.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_389ee3e9 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 59f2359dc1f41d385d639d157b4cd9fc73d76d8abb7cc09d47632bb4c9a39e6e, id = 389ee3e9-70c1-4c93-a999-292cf6ff1652, last_modified = 2022-01-26
Source: main.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_cc93863b reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f3ecd30f0b511a8e92cfa642409d559e7612c3f57a1659ca46c77aca809a00ac, id = cc93863b-1050-40ba-9d02-5ec9ce6a3a28, last_modified = 2022-01-26
Source: main.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_8aa7b5d3 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 02a2c18c362df4b1fceb33f3b605586514ba9a00c7afedf71c04fa54d8146444, id = 8aa7b5d3-e1eb-4b55-b36a-0d3a242c06e9, last_modified = 2022-01-26
Source: 6238.1.0000000008048000.000000000805a000.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: 6238.1.0000000008048000.000000000805a000.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: 6238.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_b14f4c5d os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = a70d052918dd2fbc66db241da6438015130f0fb6929229bfe573546fe98da817, id = b14f4c5d-054f-46e6-9fa8-3588f1ef68b7, last_modified = 2021-09-16
Source: 6238.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_5f7b67b8 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 6cb5fb0b7c132e9c11ac72da43278025b60810ea3733c9c6d6ca966163185940, id = 5f7b67b8-3d7b-48a4-8f03-b6f2c92be92e, last_modified = 2021-09-16
Source: 6238.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_88de437f reference_sample = 8dc745a6de6f319cd6021c3e147597315cc1be02099d78fc8aae94de0e1e4bc6, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = c19eb595c2b444a809bef8500c20342c9f46694d3018e268833f9b884133a1ea, id = 88de437f-9c98-4e1d-96c0-7b433c99886a, last_modified = 2021-09-16
Source: 6238.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_389ee3e9 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 59f2359dc1f41d385d639d157b4cd9fc73d76d8abb7cc09d47632bb4c9a39e6e, id = 389ee3e9-70c1-4c93-a999-292cf6ff1652, last_modified = 2022-01-26
Source: 6238.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_cc93863b reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f3ecd30f0b511a8e92cfa642409d559e7612c3f57a1659ca46c77aca809a00ac, id = cc93863b-1050-40ba-9d02-5ec9ce6a3a28, last_modified = 2022-01-26
Source: 6238.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_8aa7b5d3 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 02a2c18c362df4b1fceb33f3b605586514ba9a00c7afedf71c04fa54d8146444, id = 8aa7b5d3-e1eb-4b55-b36a-0d3a242c06e9, last_modified = 2022-01-26
Source: Process Memory Space: main.x86.elf PID: 6238, 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: main.x86.elf PID: 6238, 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@1/0

Source: /usr/bin/dash (PID: 6220)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.5G2IUAyuT0 /tmp/tmp.1wldcfJlCd /tmp/tmp.XWcH3fMtzo			Jump to behavior
Source: /usr/bin/dash (PID: 6229)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.5G2IUAyuT0 /tmp/tmp.1wldcfJlCd /tmp/tmp.XWcH3fMtzo			Jump to behavior

Hooking and other Techniques for Hiding and Protection

Sample deletes itself

Source: /tmp/main.x86.elf (PID: 6238)

File: /tmp/main.x86.elf

Jump to behavior

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: main.x86.elf, type: SAMPLE
Source: Yara match	File source: 6238.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: main.x86.elf PID: 6238, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: main.x86.elf, type: SAMPLE
Source: Yara match	File source: 6238.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: main.x86.elf PID: 6238, 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 File Deletion	OS Credential Dumping	System Service 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 Non-Standard Port	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	1 Non-Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact
Employee Names	Virtual Private Server	Local Accounts	Cron	Login Hook	Login Hook	Binary Padding	NTDS	System Network Configuration Discovery	Distributed Component Object Model	Input Capture	12 Application Layer Protocol	Traffic Duplication	Data Destruction

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
main.x86.elf	55%	ReversingLabs	Linux.Backdoor.Mirai
main.x86.elf	100%	Avira	EXP/ELF.Mirai.Z.A
main.x86.elf	100%	Joe Sandbox ML

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
unixbot.ddns.net	123.253.61.116	true	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
109.202.202.202	unknown	Switzerland	13030	INIT7CH	false
91.189.91.43	unknown	United Kingdom	41231	CANONICAL-ASGB	false
123.253.61.116	unixbot.ddns.net	Thailand	136523	COLODEE-AS-APCOLODEEDIGITALNETWORKCOLTDTH	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
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	fenty.arm4.elf	Get hash	malicious	Mirai	Browse
	Space.arm7.elf	Get hash	malicious	Mirai	Browse
	Space.arm.elf	Get hash	malicious	Mirai	Browse
	main.arm6.elf	Get hash	malicious	Mirai	Browse
	main.m68k.elf	Get hash	malicious	Mirai	Browse
	fuckunix.arm5.elf	Get hash	malicious	Mirai	Browse
	armv4eb.elf	Get hash	malicious	Unknown	Browse
	main.arm5.elf	Get hash	malicious	Mirai	Browse
	fuckunix.mpsl.elf	Get hash	malicious	Mirai	Browse
	fuckunix.sh4.elf	Get hash	malicious	Mirai	Browse
123.253.61.116	main.arm.elf	Get hash	malicious	Mirai	Browse
	main.mips.elf	Get hash	malicious	Mirai	Browse
	fuckunix.arm.elf	Get hash	malicious	Mirai	Browse
	main.ppc.elf	Get hash	malicious	Mirai	Browse
	main.m68k.elf	Get hash	malicious	Mirai	Browse
	fuckunix.ppc.elf	Get hash	malicious	Mirai	Browse
	fuckunix.arm5.elf	Get hash	malicious	Mirai	Browse
	main.arm5.elf	Get hash	malicious	Mirai	Browse
	fuckunix.mpsl.elf	Get hash	malicious	Mirai	Browse
	fuckunix.sh4.elf	Get hash	malicious	Mirai	Browse
91.189.91.42	fenty.arm4.elf	Get hash	malicious	Mirai	Browse
	Space.arm7.elf	Get hash	malicious	Mirai	Browse
	Space.arm.elf	Get hash	malicious	Mirai	Browse
	main.arm6.elf	Get hash	malicious	Mirai	Browse
	main.m68k.elf	Get hash	malicious	Mirai	Browse
	fuckunix.arm5.elf	Get hash	malicious	Mirai	Browse
	armv4eb.elf	Get hash	malicious	Unknown	Browse
	main.arm5.elf	Get hash	malicious	Mirai	Browse
	fuckunix.mpsl.elf	Get hash	malicious	Mirai	Browse
	fuckunix.sh4.elf	Get hash	malicious	Mirai	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
unixbot.ddns.net	main.arm.elf	Get hash	malicious	Mirai	Browse	123.253.61.116
	main.mips.elf	Get hash	malicious	Mirai	Browse	123.253.61.116
	main.ppc.elf	Get hash	malicious	Mirai	Browse	123.253.61.116
	main.m68k.elf	Get hash	malicious	Mirai	Browse	123.253.61.116
	main.arm5.elf	Get hash	malicious	Mirai	Browse	123.253.61.116

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	fenty.arm4.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	Space.arm7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	Space.arm.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main.arm6.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main.m68k.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	fuckunix.arm5.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	armv4eb.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	main.arm5.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	fuckunix.mpsl.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	fuckunix.sh4.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
CANONICAL-ASGB	fenty.arm4.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	Space.arm7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	Space.arm.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main.arm6.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main.m68k.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	fuckunix.arm5.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	armv4eb.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	main.arm5.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	fuckunix.mpsl.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	fuckunix.sh4.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
INIT7CH	fenty.arm4.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	Space.arm7.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	Space.arm.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	main.arm6.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	main.m68k.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	fuckunix.arm5.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	armv4eb.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	main.arm5.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	fuckunix.mpsl.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	fuckunix.sh4.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
COLODEE-AS-APCOLODEEDIGITALNETWORKCOLTDTH	main.arm.elf	Get hash	malicious	Mirai	Browse	123.253.61.116
	main.mips.elf	Get hash	malicious	Mirai	Browse	123.253.61.116
	fuckunix.arm.elf	Get hash	malicious	Mirai	Browse	123.253.61.116
	main.ppc.elf	Get hash	malicious	Mirai	Browse	123.253.61.116
	main.m68k.elf	Get hash	malicious	Mirai	Browse	123.253.61.116
	fuckunix.ppc.elf	Get hash	malicious	Mirai	Browse	123.253.61.116
	fuckunix.arm5.elf	Get hash	malicious	Mirai	Browse	123.253.61.116
	main.arm5.elf	Get hash	malicious	Mirai	Browse	123.253.61.116
	fuckunix.mpsl.elf	Get hash	malicious	Mirai	Browse	123.253.61.116
	fuckunix.sh4.elf	Get hash	malicious	Mirai	Browse	123.253.61.116

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, Intel 80386, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	5.735999219269111
TrID:	ELF Executable and Linkable format (Linux) (4029/14) 50.16% ELF Executable and Linkable format (generic) (4004/1) 49.84%
File name:	main.x86.elf
File size:	89'768 bytes
MD5:	3fc186dd76e8b4b9f205c7a97a3beebe
SHA1:	7196e6256332b943d6768eff51948e7df44bc1c8
SHA256:	4aca367753f9ab777e4f01df5264c7b48e4d81b489527fa4f3df441df5b5466c
SHA512:	6f9464d53e37f1e8fbe44cc39ff8e650dd17cf4709ebfde0c46325e68e9fb8f43c736f9ef1f111282b36af7643c502a18390e09ff2d1425e0af23b2f6bbcaa7c
SSDEEP:	1536:WSTQ0qVMx9i/HYIkJX6TGqIoXxK2WSsb/bIU2cS8pWS32MLf:W4Q0+a9ifY/JKi4XkIsx2xIvNf
TLSH:	0B937CD4F243D4F1E88704B15137E7375B32E0B9602EFA43C3689972DCA1952DA1ABAC
File Content Preview:	.ELF....................d...4....]......4. ...(.....................(...(...............,...,...,....G..`...........Q.td............................U..S........$...h........[]...$.............U......=.....t..5....d......d.......u........t....h(...........

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	Intel 80386
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x8048164
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	89368
Section Header Size:	40
Number of Section Headers:	10
Header String Table Index:	9

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x8048094	0x94	0x1c	0x0	0x6	AX	1
.text	PROGBITS	0x80480b0	0xb0	0xf136	0x0	0x6	AX	16
.fini	PROGBITS	0x80571e6	0xf1e6	0x17	0x0	0x6	AX	1
.rodata	PROGBITS	0x8057200	0xf200	0x2328	0x0	0x2	A	32
.ctors	PROGBITS	0x805a52c	0x1152c	0xc	0x0	0x3	WA	4
.dtors	PROGBITS	0x805a538	0x11538	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x805a560	0x11560	0x4778	0x0	0x3	WA	32
.bss	NOBITS	0x805ece0	0x15cd8	0x59ac	0x0	0x3	WA	32
.shstrtab	STRTAB	0x0	0x15cd8	0x3e	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x8048000	0x8048000	0x11528	0x11528	6.6107	0x5	R E	0x1000	.init .text .fini .rodata
LOAD	0x1152c	0x805a52c	0x805a52c	0x47ac	0xa160	0.3777	0x6	RW	0x1000	.ctors .dtors .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jan 5, 2025 14:18:52.044028997 CET	47296	3778	192.168.2.23	123.253.61.116
Jan 5, 2025 14:18:52.048907042 CET	3778	47296	123.253.61.116	192.168.2.23
Jan 5, 2025 14:18:52.048954964 CET	47296	3778	192.168.2.23	123.253.61.116
Jan 5, 2025 14:18:52.048980951 CET	47296	3778	192.168.2.23	123.253.61.116
Jan 5, 2025 14:18:52.053781033 CET	3778	47296	123.253.61.116	192.168.2.23
Jan 5, 2025 14:18:52.053816080 CET	47296	3778	192.168.2.23	123.253.61.116
Jan 5, 2025 14:18:52.058599949 CET	3778	47296	123.253.61.116	192.168.2.23
Jan 5, 2025 14:18:54.635972023 CET	43928	443	192.168.2.23	91.189.91.42
Jan 5, 2025 14:19:00.011168003 CET	42836	443	192.168.2.23	91.189.91.43
Jan 5, 2025 14:19:01.802948952 CET	42516	80	192.168.2.23	109.202.202.202
Jan 5, 2025 14:19:02.057533979 CET	47296	3778	192.168.2.23	123.253.61.116
Jan 5, 2025 14:19:02.062416077 CET	3778	47296	123.253.61.116	192.168.2.23
Jan 5, 2025 14:19:02.580507994 CET	3778	47296	123.253.61.116	192.168.2.23
Jan 5, 2025 14:19:02.580574989 CET	47296	3778	192.168.2.23	123.253.61.116
Jan 5, 2025 14:19:15.368918896 CET	43928	443	192.168.2.23	91.189.91.42
Jan 5, 2025 14:19:25.607433081 CET	42836	443	192.168.2.23	91.189.91.43
Jan 5, 2025 14:19:31.750529051 CET	42516	80	192.168.2.23	109.202.202.202
Jan 5, 2025 14:19:56.322827101 CET	43928	443	192.168.2.23	91.189.91.42
Jan 5, 2025 14:20:02.614125967 CET	47296	3778	192.168.2.23	123.253.61.116
Jan 5, 2025 14:20:02.618967056 CET	3778	47296	123.253.61.116	192.168.2.23
Jan 5, 2025 14:20:02.970139980 CET	3778	47296	123.253.61.116	192.168.2.23
Jan 5, 2025 14:20:02.970220089 CET	47296	3778	192.168.2.23	123.253.61.116
Jan 5, 2025 14:20:16.799845934 CET	42836	443	192.168.2.23	91.189.91.43

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jan 5, 2025 14:18:52.034950018 CET	55384	53	192.168.2.23	8.8.8.8
Jan 5, 2025 14:18:52.043937922 CET	53	55384	8.8.8.8	192.168.2.23

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Jan 5, 2025 14:18:52.034950018 CET	192.168.2.23	8.8.8.8	0x0	Standard query (0)	unixbot.ddns.net	A (IP address)	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Jan 5, 2025 14:18:52.043937922 CET	8.8.8.8	192.168.2.23	0x0	No error (0)	unixbot.ddns.net		123.253.61.116	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: dash PID: 6220, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6220, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.5G2IUAyuT0 /tmp/tmp.1wldcfJlCd /tmp/tmp.XWcH3fMtzo
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: dash PID: 6221, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: cat PID: 6221, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/cat
Arguments:	cat /tmp/tmp.5G2IUAyuT0
File size:	43416 bytes
MD5 hash:	7e9d213e404ad3bb82e4ebb2e1f2c1b3

Chronological Activities

Analysis Process: dash PID: 6222, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: head PID: 6222, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/head
Arguments:	head -n 10
File size:	47480 bytes
MD5 hash:	fd96a67145172477dd57131396fc9608

Chronological Activities

Analysis Process: dash PID: 6223, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: tr PID: 6223, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/tr
Arguments:	tr -d \\000-\\011\\013\\014\\016-\\037
File size:	51544 bytes
MD5 hash:	fbd1402dd9f72d8ebfff00ce7c3a7bb5

Chronological Activities

Analysis Process: dash PID: 6224, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: cut PID: 6224, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/cut
Arguments:	cut -c -80
File size:	47480 bytes
MD5 hash:	d8ed0ea8f22c0de0f8692d4d9f1759d3

Chronological Activities

Analysis Process: dash PID: 6225, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: cat PID: 6225, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/cat
Arguments:	cat /tmp/tmp.5G2IUAyuT0
File size:	43416 bytes
MD5 hash:	7e9d213e404ad3bb82e4ebb2e1f2c1b3

Chronological Activities

Analysis Process: dash PID: 6226, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: head PID: 6226, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/head
Arguments:	head -n 10
File size:	47480 bytes
MD5 hash:	fd96a67145172477dd57131396fc9608

Chronological Activities

Analysis Process: dash PID: 6227, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: tr PID: 6227, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/tr
Arguments:	tr -d \\000-\\011\\013\\014\\016-\\037
File size:	51544 bytes
MD5 hash:	fbd1402dd9f72d8ebfff00ce7c3a7bb5

Chronological Activities

Analysis Process: dash PID: 6228, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: cut PID: 6228, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/cut
Arguments:	cut -c -80
File size:	47480 bytes
MD5 hash:	d8ed0ea8f22c0de0f8692d4d9f1759d3

Chronological Activities

Analysis Process: dash PID: 6229, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6229, Parent PID: 4331

General

Start time (UTC):	13:18:44
Start date (UTC):	05/01/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.5G2IUAyuT0 /tmp/tmp.1wldcfJlCd /tmp/tmp.XWcH3fMtzo
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: main.x86.elf PID: 6238, Parent PID: 6147

General

Start time (UTC):	13:18:50
Start date (UTC):	05/01/2025
Path:	/tmp/main.x86.elf
Arguments:	/tmp/main.x86.elf
File size:	89768 bytes
MD5 hash:	3fc186dd76e8b4b9f205c7a97a3beebe

Chronological Activities

Analysis Process: main.x86.elf PID: 6239, Parent PID: 6238

General

Start time (UTC):	13:18:50
Start date (UTC):	05/01/2025
Path:	/tmp/main.x86.elf
Arguments:	-
File size:	89768 bytes
MD5 hash:	3fc186dd76e8b4b9f205c7a97a3beebe

Chronological Activities

Analysis Process: main.x86.elf PID: 6240, Parent PID: 6239

General

Start time (UTC):	13:18:50
Start date (UTC):	05/01/2025
Path:	/tmp/main.x86.elf
Arguments:	-
File size:	89768 bytes
MD5 hash:	3fc186dd76e8b4b9f205c7a97a3beebe

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 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 a protocol and port pairing that are typically not associated. For example, HTTPS over port 8088or port 587as opposed to the traditional port 443. Adversaries may make changes to the standard port used by a protocol to bypass filtering or muddle analysis/parsing of network data.
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

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 main.x86.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Malware Threat Intel

Yara Signatures

Initial Sample

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Persistence and Installation Behavior

Hooking and other Techniques for Hiding and Protection

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

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

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: dash PID: 6220, Parent PID: 4331

General

Chronological Activities

Analysis Process: rm PID: 6220, Parent PID: 4331

General

Chronological Activities

Analysis Process: dash PID: 6221, Parent PID: 4331

General

Chronological Activities

Analysis Process: cat PID: 6221, Parent PID: 4331

General

Chronological Activities

Analysis Process: dash PID: 6222, Parent PID: 4331

General

Chronological Activities

Analysis Process: head PID: 6222, Parent PID: 4331

General

Chronological Activities

Analysis Process: dash PID: 6223, Parent PID: 4331

Linux Analysis Report
main.x86.elf