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Linux Analysis Report
sh4.fkunigr.elf

Overview

General Information

Sample name:	sh4.fkunigr.elf
Analysis ID:	1646728
MD5:	f9233d2dc4754ecccc08ba41ef22eb37
SHA1:	246ec3cd67576dce229ebc864b89787f1a2870eb
SHA256:	f053ac2e09390dba5f0e457119c054df3a8350504329a19b6617ecdd893fe5a6
Tags:	elfMiraiuser-abuse_ch
Infos:

Detection

Mirai

Score:	72
Range:	0 - 100

Signatures

Antivirus / Scanner detection for submitted sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected Mirai

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

Sample has stripped symbol table

Sample listens on a socket

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

Yara signature match

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1646728
Start date and time:	2025-03-24 08:54:39 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 37s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	defaultlinuxfilecookbook.jbs
Analysis system description:	Ubuntu Linux 20.04 x64 (Kernel 5.4.0-72, Firefox 91.0, Evince Document Viewer 3.36.10, LibreOffice 6.4.7.2, OpenJDK 11.0.11)
Analysis Mode:	default
Sample name:	sh4.fkunigr.elf
Detection:	MAL
Classification:	mal72.troj.linELF@0/0@0/0

Warnings

VT rate limit hit for: http://213.209.129.92/lickmynutsnigah.sh;

Runtime Messages

Command:	/tmp/sh4.fkunigr.elf
PID:	6231
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

sh4.fkunigr.elf (PID: 6231, Parent: 6155, MD5: 8943e5f8f8c280467b4472c15ae93ba9) Arguments: /tmp/sh4.fkunigr.elf

dash New Fork (PID: 6308, Parent: 4331)

rm (PID: 6308, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.Im0AZrAE88 /tmp/tmp.2jvgpXvU5G /tmp/tmp.FExVbAyfpK

dash New Fork (PID: 6309, Parent: 4331)

rm (PID: 6309, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.Im0AZrAE88 /tmp/tmp.2jvgpXvU5G /tmp/tmp.FExVbAyfpK

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
sh4.fkunigr.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
sh4.fkunigr.elf	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x189e0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x189f4:$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 0x18a08:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18a1c:$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 0x18a30:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18a44:$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 0x18a58:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18a6c:$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 0x18a80:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18a94:$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 0x18aa8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18abc:$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 0x18ad0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18ae4:$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 0x18af8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18b0c:$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 0x18b20:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18b34:$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 0x18b48:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18b5c:$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 0x18b70:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
sh4.fkunigr.elf	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x188a0:$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

Memory Dumps

Source	Rule	Description	Author	Strings
6231.1.00007f47a4400000.00007f47a441b000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
6231.1.00007f47a4400000.00007f47a441b000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x189e0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x189f4:$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 0x18a08:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18a1c:$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 0x18a30:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18a44:$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 0x18a58:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18a6c:$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 0x18a80:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18a94:$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 0x18aa8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18abc:$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 0x18ad0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18ae4:$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 0x18af8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18b0c:$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 0x18b20:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18b34:$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 0x18b48:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18b5c:$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 0x18b70:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
6231.1.00007f47a4400000.00007f47a441b000.r-x.sdmp	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x188a0:$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
Process Memory Space: sh4.fkunigr.elf PID: 6231	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
Process Memory Space: sh4.fkunigr.elf PID: 6231	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0xd968:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xd97c:$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 0xd990:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xd9a4:$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 0xd9b8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xd9cc:$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 0xd9e0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xd9f4:$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 0xda08:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xda1c:$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 0xda30:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xda44:$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 0xda58:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xda6c:$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 0xda80:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xda94:$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 0xdaa8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xdabc:$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 0xdad0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xdae4:$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 0xdaf8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
Process Memory Space: sh4.fkunigr.elf PID: 6231	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0xd84e:$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 1 entries

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary
• Persistence and Installation Behavior
• Malware Analysis System Evasion
• Stealing of Sensitive Information
• Remote Access Functionality

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: sh4.fkunigr.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: sh4.fkunigr.elf	Virustotal: Detection: 47%			Perma Link
Source: sh4.fkunigr.elf	ReversingLabs: Detection: 58%

Source: /tmp/sh4.fkunigr.elf (PID: 6231)

Socket: 127.0.0.1:57886

Jump to behavior

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: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
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: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43

Source: sh4.fkunigr.elf	String found in binary or memory: http://213.209.129.92/lickmynutsnigah.sh;
Source: sh4.fkunigr.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: sh4.fkunigr.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/
Source: sh4.fkunigr.elf	String found in binary or memory: https://i.imgur.com/0r0MYas.gif

Source: unknown	Network traffic detected: HTTP traffic on port 39246 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 39246
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

System Summary

Malicious sample detected (through community Yara rule)

Source: sh4.fkunigr.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: sh4.fkunigr.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
Source: 6231.1.00007f47a4400000.00007f47a441b000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 6231.1.00007f47a4400000.00007f47a441b000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
Source: Process Memory Space: sh4.fkunigr.elf PID: 6231, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: sh4.fkunigr.elf PID: 6231, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown

Source: ELF static info symbol of initial sample

.symtab present: no

Source: sh4.fkunigr.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: sh4.fkunigr.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: 6231.1.00007f47a4400000.00007f47a441b000.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: 6231.1.00007f47a4400000.00007f47a441b000.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: Process Memory Space: sh4.fkunigr.elf PID: 6231, 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: sh4.fkunigr.elf PID: 6231, 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: mal72.troj.linELF@0/0@0/0

Source: /usr/bin/dash (PID: 6308)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.Im0AZrAE88 /tmp/tmp.2jvgpXvU5G /tmp/tmp.FExVbAyfpK			Jump to behavior
Source: /usr/bin/dash (PID: 6309)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.Im0AZrAE88 /tmp/tmp.2jvgpXvU5G /tmp/tmp.FExVbAyfpK			Jump to behavior

Source: /tmp/sh4.fkunigr.elf (PID: 6231)

Queries kernel information via 'uname':

Jump to behavior

Source: sh4.fkunigr.elf, 6231.1.00007ffe91830000.00007ffe91851000.rw-.sdmp	Binary or memory string: 5x86_64/usr/bin/qemu-sh4/tmp/sh4.fkunigr.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/sh4.fkunigr.elf
Source: sh4.fkunigr.elf, 6231.1.00007ffe91830000.00007ffe91851000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-sh4
Source: sh4.fkunigr.elf, 6231.1.000055711117f000.00005571111e2000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/sh4
Source: sh4.fkunigr.elf, 6231.1.000055711117f000.00005571111e2000.rw-.sdmp	Binary or memory string: qU5!/etc/qemu-binfmt/sh4
Source: sh4.fkunigr.elf, 6231.1.00007ffe91830000.00007ffe91851000.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: sh4.fkunigr.elf, type: SAMPLE
Source: Yara match	File source: 6231.1.00007f47a4400000.00007f47a441b000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: sh4.fkunigr.elf PID: 6231, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: sh4.fkunigr.elf, type: SAMPLE
Source: Yara match	File source: 6231.1.00007f47a4400000.00007f47a441b000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: sh4.fkunigr.elf PID: 6231, 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	1 File Deletion	OS Credential Dumping	11 Security Software Discovery	Remote Services	Data from Local System	1 Encrypted Channel	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	Rootkit	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	1 Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service

Malware Configuration

⊘No configs have been found

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Number of created Files
Is malicious
Internet

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
sh4.fkunigr.elf	47%	Virustotal		Browse
sh4.fkunigr.elf	58%	ReversingLabs	Linux.Trojan.Mirai
sh4.fkunigr.elf	100%	Avira	EXP/ELF.Mirai.Z.A

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

⊘No contacted domains info

URLs from Memory and Binaries

Name	Source	Malicious	Reputation
http://213.209.129.92/lickmynutsnigah.sh;	sh4.fkunigr.elf	false	unknown
http://schemas.xmlsoap.org/soap/encoding/	sh4.fkunigr.elf	false	high
https://i.imgur.com/0r0MYas.gif	sh4.fkunigr.elf	false	high
http://schemas.xmlsoap.org/soap/envelope/	sh4.fkunigr.elf	false	high

World Map of Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public IPs

IP	Domain	Country	ASN	ASN Name	Malicious
34.249.145.219	unknown	United States	16509	AMAZON-02US	false
109.202.202.202	unknown	Switzerland	13030	INIT7CH	false
91.189.91.43	unknown	United Kingdom	41231	CANONICAL-ASGB	false
91.189.91.42	unknown	United Kingdom	41231	CANONICAL-ASGB	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
34.249.145.219	arm5.elf	Get hash	malicious	Mirai	Browse
	mpsl.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	sh4.elf	Get hash	malicious	Unknown	Browse
	ppc.elf	Get hash	malicious	Unknown	Browse
	gigab.x86.elf	Get hash	malicious	Unknown	Browse
	arm7.elf	Get hash	malicious	Unknown	Browse
	aarch64.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	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	arm5.elf	Get hash	malicious	Mirai	Browse
	mpsl.fkunigr.elf	Get hash	malicious	Mirai	Browse
	arm6.elf	Get hash	malicious	Unknown	Browse
	armv5l.elf	Get hash	malicious	Mirai	Browse
	aarch64.elf	Get hash	malicious	Mirai	Browse
	mpsl.elf	Get hash	malicious	Unknown	Browse
	arm.elf	Get hash	malicious	Mirai	Browse
	arm6.elf	Get hash	malicious	Unknown	Browse
	morte.spc.elf	Get hash	malicious	Okiru	Browse
91.189.91.42	arm5.elf	Get hash	malicious	Mirai	Browse
	mpsl.fkunigr.elf	Get hash	malicious	Mirai	Browse
	arm6.elf	Get hash	malicious	Unknown	Browse
	armv5l.elf	Get hash	malicious	Mirai	Browse
	aarch64.elf	Get hash	malicious	Mirai	Browse
	mpsl.elf	Get hash	malicious	Unknown	Browse
	arm.elf	Get hash	malicious	Mirai	Browse
	arm6.elf	Get hash	malicious	Unknown	Browse
	morte.spc.elf	Get hash	malicious	Okiru	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	arm5.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	mpsl.fkunigr.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	armv5l.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	aarch64.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	mpsl.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	arm.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
CANONICAL-ASGB	arm5.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	mpsl.fkunigr.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	armv5l.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	aarch64.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	mpsl.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	arm.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
INIT7CH	arm5.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	mpsl.fkunigr.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	arm6.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	armv5l.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	aarch64.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	mpsl.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	arm.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	arm6.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	morte.spc.elf	Get hash	malicious	Okiru	Browse	109.202.202.202
AMAZON-02US	na.elf	Get hash	malicious	Prometei	Browse	52.212.150.54
	ppc.fkunigr.elf	Get hash	malicious	Mirai	Browse	34.243.160.129
	SWIFT MT103.Pdf.exe	Get hash	malicious	FormBook	Browse	13.248.169.48
	spc.elf	Get hash	malicious	Mirai, Moobot	Browse	18.251.232.4
	mpsl.elf	Get hash	malicious	Mirai, Moobot	Browse	13.225.135.58
	arm5.elf	Get hash	malicious	Mirai	Browse	34.249.145.219
	SHIPPING DOC.exe	Get hash	malicious	FormBook	Browse	13.248.169.48
	OvZRPCoQg7.exe	Get hash	malicious	Lokibot	Browse	13.248.169.48
	B49pcKp4ey.exe	Get hash	malicious	Lokibot	Browse	13.248.169.48
	1 (325).exe	Get hash	malicious	Unknown	Browse	13.213.51.196

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, Renesas SH, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.356253327678573
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	sh4.fkunigr.elf
File size:	129'632 bytes
MD5:	f9233d2dc4754ecccc08ba41ef22eb37
SHA1:	246ec3cd67576dce229ebc864b89787f1a2870eb
SHA256:	f053ac2e09390dba5f0e457119c054df3a8350504329a19b6617ecdd893fe5a6
SHA512:	e3d840aca752dc23d4b993fefae2236f63234c41f148ad6465e3b161b734b7cc6b80c63589caffa713093bf0b0dbdfeea7458059f3cc54d26b64bb6350100ecd
SSDEEP:	1536:naA/epWpuy5DRZj32WkVgCmA/0gL36WluDKiKHJtUHRfPyzape:n/245v0Vgk/0gT6WlqKFHayOo
TLSH:	6DC36A76D82A6F68C255C574B0B48F392F639594828B1FBE59B2C3704443D8DFA09BF8
File Content Preview:	.ELF.....................@.4...........4. ...(...............@...@.4...4.....................B...B.dH..............Q.td............................././"O.n........#.@........#.*@.}...o&O.n...l..............................././.../.a"O.!...n...a.b("...q.

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	<unknown>
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x4001a0
Flags:	0x9
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	129192
Section Header Size:	40
Number of Section Headers:	11
Header String Table Index:	10

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x400094	0x94	0x30	0x0	0x6	AX	4
.text	PROGBITS	0x4000e0	0xe0	0x17da0	0x0	0x6	AX	32
.fini	PROGBITS	0x417e80	0x17e80	0x24	0x0	0x6	AX	4
.rodata	PROGBITS	0x417ea4	0x17ea4	0x3090	0x0	0x2	A	4
.ctors	PROGBITS	0x42b000	0x1b000	0xc	0x0	0x3	WA	4
.dtors	PROGBITS	0x42b00c	0x1b00c	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x42b020	0x1b020	0x4830	0x0	0x3	WA	32
.got	PROGBITS	0x42f850	0x1f850	0x14	0x4	0x3	WA	4
.bss	NOBITS	0x42f864	0x1f864	0x473c	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0x1f864	0x43	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x400000	0x400000	0x1af34	0x1af34	6.9774	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x1b000	0x42b000	0x42b000	0x4864	0x8fa0	0.3263	0x6	RW	0x10000	.ctors .dtors .data .got .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 12
• 443 (HTTPS)
• 80 (HTTP)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 24, 2025 08:55:26.410783052 CET	43928	443	192.168.2.23	91.189.91.42
Mar 24, 2025 08:55:31.785876036 CET	42836	443	192.168.2.23	91.189.91.43
Mar 24, 2025 08:55:32.809745073 CET	42516	80	192.168.2.23	109.202.202.202
Mar 24, 2025 08:55:46.313640118 CET	39246	443	192.168.2.23	34.249.145.219
Mar 24, 2025 08:55:46.313699961 CET	443	39246	34.249.145.219	192.168.2.23
Mar 24, 2025 08:55:46.313816071 CET	39246	443	192.168.2.23	34.249.145.219
Mar 24, 2025 08:55:46.314179897 CET	39246	443	192.168.2.23	34.249.145.219
Mar 24, 2025 08:55:46.314198017 CET	443	39246	34.249.145.219	192.168.2.23
Mar 24, 2025 08:55:47.144105911 CET	43928	443	192.168.2.23	91.189.91.42
Mar 24, 2025 08:55:57.382477999 CET	42836	443	192.168.2.23	91.189.91.43
Mar 24, 2025 08:56:03.525578976 CET	42516	80	192.168.2.23	109.202.202.202
Mar 24, 2025 08:56:28.098166943 CET	43928	443	192.168.2.23	91.189.91.42
Mar 24, 2025 08:56:46.306025028 CET	39246	443	192.168.2.23	34.249.145.219
Mar 24, 2025 08:56:46.352329016 CET	443	39246	34.249.145.219	192.168.2.23
Mar 24, 2025 08:56:48.575402975 CET	42836	443	192.168.2.23	91.189.91.43
Mar 24, 2025 08:57:30.630260944 CET	443	39246	34.249.145.219	192.168.2.23

System Behavior

Analysis Process: sh4.fkunigr.elf PID: 6231, Parent PID: 6155

General

Start time (UTC):	07:55:26
Start date (UTC):	24/03/2025
Path:	/tmp/sh4.fkunigr.elf
Arguments:	/tmp/sh4.fkunigr.elf
File size:	4139976 bytes
MD5 hash:	8943e5f8f8c280467b4472c15ae93ba9

File Activities

File Opened

File Read

Process Activities

Signal Sent

Thread Sleep

System Activities

Query System Information (uname)

Network Activities

Socket Listening

Socket Connecting

Chronological Activities

Analysis Process: dash PID: 6308, Parent PID: 4331

General

Start time (UTC):	07:56:45
Start date (UTC):	24/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6308, Parent PID: 4331

General

Start time (UTC):	07:56:45
Start date (UTC):	24/03/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.Im0AZrAE88 /tmp/tmp.2jvgpXvU5G /tmp/tmp.FExVbAyfpK
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Analysis Process: dash PID: 6309, Parent PID: 4331

General

Start time (UTC):	07:56:45
Start date (UTC):	24/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6309, Parent PID: 4331

General

Start time (UTC):	07:56:45
Start date (UTC):	24/03/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.Im0AZrAE88 /tmp/tmp.2jvgpXvU5G /tmp/tmp.FExVbAyfpK
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

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

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using OSI application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report sh4.fkunigr.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

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

Malware Analysis System Evasion

Stealing of Sensitive Information

Remote Access Functionality

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

URLs from Memory and Binaries

World Map of Contacted IPs

Public IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: sh4.fkunigr.elf PID: 6231, Parent PID: 6155

General

File Activities

File Opened

File Read

Process Activities

Signal Sent

Thread Sleep

System Activities

Query System Information (uname)

Network Activities

Socket Listening

Socket Connecting

Chronological Activities

Analysis Process: dash PID: 6308, Parent PID: 4331

General

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6308, Parent PID: 4331

Linux Analysis Report
sh4.fkunigr.elf