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Linux Analysis Report
x86.elf

Overview

General Information

Sample name:	x86.elf
Analysis ID:	1589739
MD5:	ea61a6f0816cc1210d7668bbe8395087
SHA1:	845c1f4e281e84802407a18800c10ab2ac5f5ee1
SHA256:	de2774138e1b412ff0b6125c3acc51c523797d758c6933d0c37c517f2ba335ba
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	76
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

Detected TCP or UDP traffic on non-standard ports

Sample has stripped symbol table

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

Yara signature match

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1589739
Start date and time:	2025-01-13 03:56:05 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 5m 1s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	defaultlinuxfilecookbook.jbs
Analysis system description:	Ubuntu Linux 20.04 x64 (Kernel 5.4.0-72, Firefox 91.0, Evince Document Viewer 3.36.10, LibreOffice 6.4.7.2, OpenJDK 11.0.11)
Analysis Mode:	default
Sample name:	x86.elf
Detection:	MAL
Classification:	mal76.troj.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/x86.elf
PID:	6239
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	wormbot
Standard Error:

Process Tree

system is lnxubuntu20

x86.elf (PID: 6239, Parent: 6163, MD5: ea61a6f0816cc1210d7668bbe8395087) Arguments: /tmp/x86.elf

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

x86.elf New Fork (PID: 6241, 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
x86.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
x86.elf	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0xb8b8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xb8cc:$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 0xb8e0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xb8f4:$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 0xb908:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xb91c:$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 0xb930:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xb944:$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 0xb958:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xb96c:$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 0xb980:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xb994:$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 0xb9a8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xb9bc:$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 0xb9d0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xb9e4:$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 0xb9f8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xba0c:$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 0xba20:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xba34:$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 0xba48:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
x86.elf	Linux_Trojan_Mirai_122ff2e6	unknown	unknown	0x78c7:$a: 24 EB 15 89 F0 83 C8 01 EB 03 8B 5B 08 3B 43 04 72 F8 8B 4B 0C 89
x86.elf	Linux_Trojan_Mirai_fa48b592	unknown	unknown	0xae35:$a: 31 C0 BA 01 00 00 00 B9 01 00 00 00 03 04 24 89 D7 31 D2 F7 F7 0F
x86.elf	Linux_Trojan_Mirai_8aa7b5d3	unknown	unknown	0x4e62:$a: 8B 4C 24 14 8B 74 24 0C 8B 5C 24 10 85 C9 74 0D 31 D2 8A 04 1A 88

Memory Dumps

Source	Rule	Description	Author	Strings
6239.1.0000000008048000.0000000008056000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
6239.1.0000000008048000.0000000008056000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0xb8b8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xb8cc:$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 0xb8e0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xb8f4:$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 0xb908:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xb91c:$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 0xb930:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xb944:$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 0xb958:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xb96c:$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 0xb980:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xb994:$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 0xb9a8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xb9bc:$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 0xb9d0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xb9e4:$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 0xb9f8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xba0c:$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 0xba20:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xba34:$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 0xba48:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
6239.1.0000000008048000.0000000008056000.r-x.sdmp	Linux_Trojan_Mirai_122ff2e6	unknown	unknown	0x78c7:$a: 24 EB 15 89 F0 83 C8 01 EB 03 8B 5B 08 3B 43 04 72 F8 8B 4B 0C 89
6239.1.0000000008048000.0000000008056000.r-x.sdmp	Linux_Trojan_Mirai_fa48b592	unknown	unknown	0xae35:$a: 31 C0 BA 01 00 00 00 B9 01 00 00 00 03 04 24 89 D7 31 D2 F7 F7 0F
6239.1.0000000008048000.0000000008056000.r-x.sdmp	Linux_Trojan_Mirai_8aa7b5d3	unknown	unknown	0x4e62:$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: x86.elf PID: 6239	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
Process Memory Space: x86.elf PID: 6239	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x4bc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x4d0:$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 0x4e4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x4f8:$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 0x50c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x520:$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 0x534:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x548:$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 0x55c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x570:$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 0x584:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x598:$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 0x5ac:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x5c0:$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 0x5d4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x5e8:$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 0x5fc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x610:$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 0x624:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x638:$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 0x64c:$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
Click to see the 2 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: x86.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: x86.elf

ReversingLabs: Detection: 42%

Machine Learning detection for sample

Source: x86.elf

Joe Sandbox ML: detected

Source: global traffic

TCP traffic: 192.168.2.23:39354 -> 85.239.34.134:999

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: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
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: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
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: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134

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: x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_122ff2e6 Author: unknown
Source: x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_fa48b592 Author: unknown
Source: x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Source: 6239.1.0000000008048000.0000000008056000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 6239.1.0000000008048000.0000000008056000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_122ff2e6 Author: unknown
Source: 6239.1.0000000008048000.0000000008056000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_fa48b592 Author: unknown
Source: 6239.1.0000000008048000.0000000008056000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Source: Process Memory Space: x86.elf PID: 6239, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown

Source: ELF static info symbol of initial sample

.symtab present: no

Source: 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: x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_122ff2e6 reference_sample = c7dd999a033fa3edc1936785b87cd69ce2f5cac5a084ddfaf527a1094e718bc4, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 3c9ffd7537e30a21eefa6c174f801264b92a85a1bc73e34e6dc9e29f84658348, id = 122ff2e6-56e6-4aa8-a3ec-c19d31eb1f80, last_modified = 2021-09-16
Source: x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_fa48b592 reference_sample = c9e33befeec133720b3ba40bb3cd7f636aad80f72f324c5fe65ac7af271c49ee, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 8838d2752b310dbf7d12f6cf023244aaff4fdf5b55cf1e3b71843210df0fcf88, id = fa48b592-8d80-45af-a3e4-232695b8f5dd, last_modified = 2021-09-16
Source: 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: 6239.1.0000000008048000.0000000008056000.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: 6239.1.0000000008048000.0000000008056000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_122ff2e6 reference_sample = c7dd999a033fa3edc1936785b87cd69ce2f5cac5a084ddfaf527a1094e718bc4, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 3c9ffd7537e30a21eefa6c174f801264b92a85a1bc73e34e6dc9e29f84658348, id = 122ff2e6-56e6-4aa8-a3ec-c19d31eb1f80, last_modified = 2021-09-16
Source: 6239.1.0000000008048000.0000000008056000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_fa48b592 reference_sample = c9e33befeec133720b3ba40bb3cd7f636aad80f72f324c5fe65ac7af271c49ee, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 8838d2752b310dbf7d12f6cf023244aaff4fdf5b55cf1e3b71843210df0fcf88, id = fa48b592-8d80-45af-a3e4-232695b8f5dd, last_modified = 2021-09-16
Source: 6239.1.0000000008048000.0000000008056000.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: x86.elf PID: 6239, 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: classification engine

Classification label: mal76.troj.linELF@0/0@0/0

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: x86.elf, type: SAMPLE
Source: Yara match	File source: 6239.1.0000000008048000.0000000008056000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: x86.elf PID: 6239, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: x86.elf, type: SAMPLE
Source: Yara match	File source: 6239.1.0000000008048000.0000000008056000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: x86.elf PID: 6239, 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	Direct Volume Access	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 Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact

Malware Configuration

⊘No configs have been found

Behavior Graph

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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
x86.elf	42%	ReversingLabs	Linux.Exploit.Mirai
x86.elf	100%	Avira	EXP/ELF.Mirai.Z.A
x86.elf	100%	Joe Sandbox ML

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

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
85.239.34.134	unknown	Russian Federation	134121	RAINBOW-HKRainbownetworklimitedHK	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
85.239.34.134	sh4.elf	Get hash	malicious	Unknown	Browse
	ppc.elf	Get hash	malicious	Unknown	Browse
	arm6.elf	Get hash	malicious	Unknown	Browse
	arm5.elf	Get hash	malicious	Unknown	Browse
	m68k.elf	Get hash	malicious	Unknown	Browse
	mpsl.elf	Get hash	malicious	Unknown	Browse
	harm.elf	Get hash	malicious	Unknown	Browse
	mips.elf	Get hash	malicious	Unknown	Browse
	spc.elf	Get hash	malicious	Unknown	Browse
	x86.elf	Get hash	malicious	Unknown	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	Mozi.m.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	12.elf	Get hash	malicious	Unknown	Browse
	mpsl.elf	Get hash	malicious	Unknown	Browse
	t2.elf	Get hash	malicious	Unknown	Browse
	g6.elf	Get hash	malicious	Unknown	Browse
	g2.elf	Get hash	malicious	Unknown	Browse
	la.bot.arm.elf	Get hash	malicious	Mirai	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
RAINBOW-HKRainbownetworklimitedHK	4kN17cL4Tn.exe	Get hash	malicious	LummaC	Browse	85.239.54.77
	sh4.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	ppc.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	arm6.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	arm5.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	m68k.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	mpsl.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	harm.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	mips.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	spc.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
CANONICAL-ASGB	Mozi.m.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	12.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	mpsl.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	t2.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	g6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	g2.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	t6.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
INIT7CH	Mozi.m.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	12.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	mpsl.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	t2.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	g6.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	g2.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	la.bot.arm.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, Intel 80386, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.528463225342005
TrID:	ELF Executable and Linkable format (Linux) (4029/14) 50.16% ELF Executable and Linkable format (generic) (4004/1) 49.84%
File name:	x86.elf
File size:	56'760 bytes
MD5:	ea61a6f0816cc1210d7668bbe8395087
SHA1:	845c1f4e281e84802407a18800c10ab2ac5f5ee1
SHA256:	de2774138e1b412ff0b6125c3acc51c523797d758c6933d0c37c517f2ba335ba
SHA512:	44b26d6eba3c6d939103d907137f5a27a4c33161bd847a51ace5f87d3e140eb686377e6506efce9ba806b822cf5c17148740e62fb5c8b914832e3c5d7caf1869
SSDEEP:	1536:8bOJRObHU/IeSEruLYwMZBs6AagzbeKZ6:8OOrU/IeyM+He
TLSH:	94436CC5F583C1B3C8470574106BFB3B9E31F6D92278E687DBF49A72BC53690980A689
File Content Preview:	.ELF........................4...........4. ...(.....................<...<...............<...<a..<a.......9..............H...Hg..Hg..................Q.td............................U..S............h........[]...$.............U......=@k...t..5.....g......g.

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:	0x8048184
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	4
Section Header Offset:	56200
Section Header Size:	40
Number of Section Headers:	14
Header String Table Index:	13

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x80480b4	0xb4	0x1c	0x0	0x6	AX	1
.text	PROGBITS	0x80480d0	0xd0	0xb317	0x0	0x6	AX	16
.fini	PROGBITS	0x80533e7	0xb3e7	0x17	0x0	0x6	AX	1
.rodata	PROGBITS	0x8053400	0xb400	0x1d3c	0x0	0x2	A	16
.eh_frame	PROGBITS	0x805613c	0xd13c	0x60c	0x0	0x3	WA	4
.tbss	NOBITS	0x8056748	0xd748	0x8	0x0	0x403	WAT	4
.ctors	PROGBITS	0x8056748	0xd748	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x8056750	0xd750	0x8	0x0	0x3	WA	4
.jcr	PROGBITS	0x8056758	0xd758	0x4	0x0	0x3	WA	4
.got.plt	PROGBITS	0x805675c	0xd75c	0xc	0x4	0x3	WA	4
.data	PROGBITS	0x8056780	0xd780	0x3ac	0x0	0x3	WA	32
.bss	NOBITS	0x8056b40	0xdb2c	0x2f7c	0x0	0x3	WA	32
.shstrtab	STRTAB	0x0	0xdb2c	0x5c	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	0xd13c	0xd13c	6.5688	0x5	R E	0x1000	.init .text .fini .rodata
LOAD	0xd13c	0x805613c	0x805613c	0x9f0	0x3980	5.0525	0x6	RW	0x1000	.eh_frame .tbss .ctors .dtors .jcr .got.plt .data .bss
TLS	0xd748	0x8056748	0x8056748	0x0	0x8	0.0000	0x4	R	0x4	.tbss
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 13, 2025 03:56:51.928090096 CET	39354	999	192.168.2.23	85.239.34.134
Jan 13, 2025 03:56:51.933058977 CET	999	39354	85.239.34.134	192.168.2.23
Jan 13, 2025 03:56:51.933104038 CET	39354	999	192.168.2.23	85.239.34.134
Jan 13, 2025 03:56:51.933137894 CET	39354	999	192.168.2.23	85.239.34.134
Jan 13, 2025 03:56:51.937942982 CET	999	39354	85.239.34.134	192.168.2.23
Jan 13, 2025 03:56:51.937977076 CET	39354	999	192.168.2.23	85.239.34.134
Jan 13, 2025 03:56:51.942810059 CET	999	39354	85.239.34.134	192.168.2.23
Jan 13, 2025 03:56:51.975321054 CET	43928	443	192.168.2.23	91.189.91.42
Jan 13, 2025 03:56:57.350616932 CET	42836	443	192.168.2.23	91.189.91.43
Jan 13, 2025 03:56:58.630435944 CET	42516	80	192.168.2.23	109.202.202.202
Jan 13, 2025 03:57:01.941833019 CET	39354	999	192.168.2.23	85.239.34.134
Jan 13, 2025 03:57:01.946882010 CET	999	39354	85.239.34.134	192.168.2.23
Jan 13, 2025 03:57:02.163400888 CET	999	39354	85.239.34.134	192.168.2.23
Jan 13, 2025 03:57:02.163474083 CET	39354	999	192.168.2.23	85.239.34.134
Jan 13, 2025 03:57:12.708506107 CET	43928	443	192.168.2.23	91.189.91.42
Jan 13, 2025 03:57:22.947166920 CET	42836	443	192.168.2.23	91.189.91.43
Jan 13, 2025 03:57:29.090342045 CET	42516	80	192.168.2.23	109.202.202.202
Jan 13, 2025 03:57:53.663141966 CET	43928	443	192.168.2.23	91.189.91.42
Jan 13, 2025 03:58:02.205923080 CET	39354	999	192.168.2.23	85.239.34.134
Jan 13, 2025 03:58:02.210992098 CET	999	39354	85.239.34.134	192.168.2.23
Jan 13, 2025 03:58:02.427423954 CET	999	39354	85.239.34.134	192.168.2.23
Jan 13, 2025 03:58:02.427583933 CET	39354	999	192.168.2.23	85.239.34.134
Jan 13, 2025 03:58:14.140281916 CET	42836	443	192.168.2.23	91.189.91.43
Jan 13, 2025 03:59:02.465744972 CET	39354	999	192.168.2.23	85.239.34.134
Jan 13, 2025 03:59:02.470722914 CET	999	39354	85.239.34.134	192.168.2.23
Jan 13, 2025 03:59:02.687305927 CET	999	39354	85.239.34.134	192.168.2.23
Jan 13, 2025 03:59:02.687455893 CET	39354	999	192.168.2.23	85.239.34.134
Jan 13, 2025 04:00:02.721571922 CET	39354	999	192.168.2.23	85.239.34.134
Jan 13, 2025 04:00:02.727273941 CET	999	39354	85.239.34.134	192.168.2.23
Jan 13, 2025 04:00:03.905071974 CET	999	39354	85.239.34.134	192.168.2.23
Jan 13, 2025 04:00:03.905256987 CET	39354	999	192.168.2.23	85.239.34.134
Jan 13, 2025 04:00:03.905287981 CET	999	39354	85.239.34.134	192.168.2.23
Jan 13, 2025 04:00:03.905319929 CET	999	39354	85.239.34.134	192.168.2.23
Jan 13, 2025 04:00:03.905348063 CET	999	39354	85.239.34.134	192.168.2.23
Jan 13, 2025 04:00:03.905353069 CET	39354	999	192.168.2.23	85.239.34.134
Jan 13, 2025 04:00:03.905379057 CET	39354	999	192.168.2.23	85.239.34.134
Jan 13, 2025 04:00:03.905390978 CET	39354	999	192.168.2.23	85.239.34.134

System Behavior

Analysis Process: x86.elf PID: 6239, Parent PID: 6163

General

Start time (UTC):	02:56:50
Start date (UTC):	13/01/2025
Path:	/tmp/x86.elf
Arguments:	/tmp/x86.elf
File size:	56760 bytes
MD5 hash:	ea61a6f0816cc1210d7668bbe8395087

Chronological Activities

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

General

Start time (UTC):	02:56:50
Start date (UTC):	13/01/2025
Path:	/tmp/x86.elf
Arguments:	-
File size:	56760 bytes
MD5 hash:	ea61a6f0816cc1210d7668bbe8395087

Chronological Activities

Analysis Process: x86.elf PID: 6241, Parent PID: 6239

General

Start time (UTC):	02:56:50
Start date (UTC):	13/01/2025
Path:	/tmp/x86.elf
Arguments:	-
File size:	56760 bytes
MD5 hash:	ea61a6f0816cc1210d7668bbe8395087

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 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 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

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

System Behavior

Analysis Process: x86.elf PID: 6239, Parent PID: 6163

General

Chronological Activities

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

General

Chronological Activities

Analysis Process: x86.elf PID: 6241, Parent PID: 6239

General

Linux Analysis Report
x86.elf