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Linux Analysis Report
main_arm6.elf

Overview

General Information

Sample name:	main_arm6.elf
Analysis ID:	1582186
MD5:	c91eb36de2bc4781ad5ee655115d803f
SHA1:	3773f7f9d068ca521dc8b3d80871ade7cee5ee95
SHA256:	eb0ca5d112bf4c3d8391778cb0795ee40c79faecb291a4d944fcd1dc8f06f17c
Tags:	elfMiraiuser-abuse_ch
Infos:

Detection

Mirai

Score:	72
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

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

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

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

Yara signature match

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1582186
Start date and time:	2024-12-30 03:39:03 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 48s
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_arm6.elf
Detection:	MAL
Classification:	mal72.troj.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/main_arm6.elf
PID:	6305
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

dash New Fork (PID: 6292, Parent: 4331)

rm (PID: 6292, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.X00wLryTcM /tmp/tmp.y59CMaNlei /tmp/tmp.QwUKvaMW2s

dash New Fork (PID: 6293, Parent: 4331)

rm (PID: 6293, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.X00wLryTcM /tmp/tmp.y59CMaNlei /tmp/tmp.QwUKvaMW2s

main_arm6.elf (PID: 6305, Parent: 6222, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/main_arm6.elf

cleanup

Malware Threat Intel

Provided by

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

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
main_arm6.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
main_arm6.elf	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x1c788:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c79c:$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 0x1c7b0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c7c4:$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 0x1c7d8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c7ec:$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 0x1c800:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c814:$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 0x1c828:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c83c:$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 0x1c850:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c864:$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 0x1c878:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c88c:$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 0x1c8a0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c8b4:$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 0x1c8c8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c8dc:$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 0x1c8f0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c904:$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 0x1c918:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
main_arm6.elf	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x1c648:$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
6305.1.00007f4994017000.00007f4994036000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
6305.1.00007f4994017000.00007f4994036000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x1c788:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c79c:$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 0x1c7b0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c7c4:$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 0x1c7d8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c7ec:$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 0x1c800:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c814:$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 0x1c828:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c83c:$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 0x1c850:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c864:$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 0x1c878:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c88c:$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 0x1c8a0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c8b4:$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 0x1c8c8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c8dc:$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 0x1c8f0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1c904:$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 0x1c918:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
6305.1.00007f4994017000.00007f4994036000.r-x.sdmp	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x1c648:$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: main_arm6.elf PID: 6305	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
Process Memory Space: main_arm6.elf PID: 6305	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x14f24:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x14f38:$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 0x14f4c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x14f60:$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 0x14f74:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x14f88:$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 0x14f9c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x14fb0:$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 0x14fc4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x14fd8:$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 0x14fec:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15000:$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 0x15014:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15028:$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 0x1503c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15050:$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 0x15064:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15078:$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 0x1508c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x150a0:$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 0x150b4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
Process Memory Space: main_arm6.elf PID: 6305	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x14e0a:$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

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: main_arm6.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: main_arm6.elf	ReversingLabs: Detection: 63%
Source: main_arm6.elf	Virustotal: Detection: 50%			Perma Link

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: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42

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_arm6.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: main_arm6.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
Source: 6305.1.00007f4994017000.00007f4994036000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 6305.1.00007f4994017000.00007f4994036000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
Source: Process Memory Space: main_arm6.elf PID: 6305, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: main_arm6.elf PID: 6305, 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: /bin/busybox/usr/lib/systemd/systemd/usr/libexec/openssh/sftp-serverusr/shellmnt/sys/bin/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_spchttpdtelnetddropbearropbearencodersystem/root/dvr_gui//root/dvr_app//anko-app//opt//tmp/var/mnt/boot/home/dev/..//root(deleted)/proc/self/exe

Source: ELF static info symbol of initial sample

.symtab present: no

Source: main_arm6.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_arm6.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: 6305.1.00007f4994017000.00007f4994036000.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: 6305.1.00007f4994017000.00007f4994036000.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: main_arm6.elf PID: 6305, 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_arm6.elf PID: 6305, 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: 6292)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.X00wLryTcM /tmp/tmp.y59CMaNlei /tmp/tmp.QwUKvaMW2s			Jump to behavior
Source: /usr/bin/dash (PID: 6293)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.X00wLryTcM /tmp/tmp.y59CMaNlei /tmp/tmp.QwUKvaMW2s			Jump to behavior

Source: /tmp/main_arm6.elf (PID: 6305)

Queries kernel information via 'uname':

Jump to behavior

Source: main_arm6.elf, 6305.1.000055b65d2a3000.000055b65d3d1000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: main_arm6.elf, 6305.1.000055b65d2a3000.000055b65d3d1000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: main_arm6.elf, 6305.1.00007ffd4ae74000.00007ffd4ae95000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: main_arm6.elf, 6305.1.00007ffd4ae74000.00007ffd4ae95000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Source: main_arm6.elf, 6305.1.00007ffd4ae74000.00007ffd4ae95000.rw-.sdmp	Binary or memory string: ,x86_64/usr/bin/qemu-arm/tmp/main_arm6.elfSUDO_USER=saturninoPATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/binDISPLAY=:1.0XAUTHORITY=/run/user/1000/gdm/XauthoritySUDO_UID=1000TERM=xterm-256colorCOLORTERM=truecolorLOGNAME=rootUSER=rootLANG=en_US.UTF-8SUDO_COMMAND=/bin/bashHOME=/rootMAIL=/var/mail/rootSUDO_GID=1000SHELL=/bin/bash/tmp/main_arm6.elf

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: main_arm6.elf, type: SAMPLE
Source: Yara match	File source: 6305.1.00007f4994017000.00007f4994036000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: main_arm6.elf PID: 6305, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: main_arm6.elf, type: SAMPLE
Source: Yara match	File source: 6305.1.00007f4994017000.00007f4994036000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: main_arm6.elf PID: 6305, 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

Screenshots

Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
main_arm6.elf	63%	ReversingLabs	Linux.Backdoor.Mirai
main_arm6.elf	51%	Virustotal		Browse
main_arm6.elf	100%	Avira	EXP/ELF.Mirai.Z.A

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
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
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	rebirth.sh4.elf	Get hash	malicious	Gafgyt	Browse
	.Sarm5.elf	Get hash	malicious	Unknown	Browse
	arm5.elf	Get hash	malicious	Unknown	Browse
	zmap.arm6.elf	Get hash	malicious	Mirai, Okiru	Browse
	.Smpsl.elf	Get hash	malicious	Unknown	Browse
	.Sm68k.elf	Get hash	malicious	Unknown	Browse
	m68k.elf	Get hash	malicious	Unknown	Browse
	main_mpsl.elf	Get hash	malicious	Mirai	Browse
	.Sx86_64.elf	Get hash	malicious	Unknown	Browse
	.Sarm.elf	Get hash	malicious	Unknown	Browse
91.189.91.42	dlr.arm.elf	Get hash	malicious	Unknown	Browse
	rebirth.sh4.elf	Get hash	malicious	Gafgyt	Browse
	.Sarm5.elf	Get hash	malicious	Unknown	Browse
	arm5.elf	Get hash	malicious	Unknown	Browse
	zmap.arm6.elf	Get hash	malicious	Mirai, Okiru	Browse
	.Smpsl.elf	Get hash	malicious	Unknown	Browse
	arm.elf	Get hash	malicious	Mirai, Moobot	Browse
	rebirth.ppc.elf	Get hash	malicious	Gafgyt	Browse
	dlr.arm7.elf	Get hash	malicious	Mirai	Browse
	.Sm68k.elf	Get hash	malicious	Unknown	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	dlr.arm.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	rebirth.sh4.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	dlr.mpsl.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	.Sarm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	zmap.arm6.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	debug.dbg.elf	Get hash	malicious	Mirai, Moobot	Browse	185.125.190.26
	.Smpsl.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm.elf	Get hash	malicious	Mirai, Moobot	Browse	91.189.91.42
	rebirth.ppc.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
CANONICAL-ASGB	dlr.arm.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	rebirth.sh4.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	dlr.mpsl.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	.Sarm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	zmap.arm6.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	debug.dbg.elf	Get hash	malicious	Mirai, Moobot	Browse	185.125.190.26
	.Smpsl.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm.elf	Get hash	malicious	Mirai, Moobot	Browse	91.189.91.42
	rebirth.ppc.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
INIT7CH	dlr.arm.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	rebirth.sh4.elf	Get hash	malicious	Gafgyt	Browse	109.202.202.202
	.Sarm5.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	arm5.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	zmap.arm6.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	.Smpsl.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	arm.elf	Get hash	malicious	Mirai, Moobot	Browse	109.202.202.202
	rebirth.ppc.elf	Get hash	malicious	Gafgyt	Browse	109.202.202.202
	dlr.arm7.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	.Sm68k.elf	Get hash	malicious	Unknown	Browse	109.202.202.202

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Static File Info

General

File type:	ELF 32-bit LSB executable, ARM, EABI4 version 1 (SYSV), statically linked, stripped
Entropy (8bit):	5.639153582549417
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	main_arm6.elf
File size:	144'156 bytes
MD5:	c91eb36de2bc4781ad5ee655115d803f
SHA1:	3773f7f9d068ca521dc8b3d80871ade7cee5ee95
SHA256:	eb0ca5d112bf4c3d8391778cb0795ee40c79faecb291a4d944fcd1dc8f06f17c
SHA512:	a55d3e5f29a04f14fba1e3a5189d8e475511dbd3bec167e1b26cf3b2da4276373f31df6e041ac9b65b2b24b3175f5d30c497f75cdc075bc868104a0dbca2fbef
SSDEEP:	3072:DHea4CH1UjnwJIXMb6Azz1az/AWdYV8P4KLb:zePCH1Q6IXufzhakr8P4KLb
TLSH:	0BE30B46F8814B12D5D111BAFE1E128E37131BB8E2DE73029D246F647B8A97F0E3B915
File Content Preview:	.ELF..............(.....T...4....1......4. ...(......................................................H..,...........Q.td..................................-...L..................@-.,@...0....S..... 0....S.........../..0...0...@..../..0............-.@0....S

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	ARM
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x8154
Flags:	0x4000002
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	143636
Section Header Size:	40
Number of Section Headers:	13
Header String Table Index:	12

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x8094	0x94	0x10	0x0	0x6	AX	4
.text	PROGBITS	0x80b0	0xb0	0x1be90	0x0	0x6	AX	16
.fini	PROGBITS	0x23f40	0x1bf40	0x10	0x0	0x6	AX	4
.rodata	PROGBITS	0x23f50	0x1bf50	0x286c	0x0	0x2	A	8
.init_array	INIT_ARRAY	0x2e7c0	0x1e7c4	0x8	0x0	0x3	WA	4
.fini_array	FINI_ARRAY	0x2e7c8	0x1e7cc	0x4	0x0	0x3	WA	4
.data.rel.ro	PROGBITS	0x2e7d0	0x1e7d4	0x78	0x0	0x3	WA	4
.got	PROGBITS	0x2e848	0x1e84c	0x11c	0x4	0x3	WA	4
.data	PROGBITS	0x2e980	0x1e984	0x4714	0x0	0x3	WA	32
.bss	NOBITS	0x33098	0x23098	0x5954	0x0	0x3	WA	8
.ARM.attributes	ARM_ATTRIBUTES	0x0	0x23098	0x10	0x0	0x0		1
.shstrtab	STRTAB	0x0	0x230a8	0x6a	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x8000	0x8000	0x1e7bc	0x1e7bc	6.1117	0x5	R E	0x8000	.init .text .fini .rodata
LOAD	0x1e7c0	0x2e7c0	0x2e7bc	0x48d8	0xa22c	0.5561	0x6	RW	0x8000	.init_array .fini_array .data.rel.ro .got .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Dec 30, 2024 03:40:11.895121098 CET	43928	443	192.168.2.23	91.189.91.42
Dec 30, 2024 03:40:17.270359993 CET	42836	443	192.168.2.23	91.189.91.43
Dec 30, 2024 03:40:33.396155119 CET	43928	443	192.168.2.23	91.189.91.42
Dec 30, 2024 03:40:35.443823099 CET	42516	80	192.168.2.23	109.202.202.202
Dec 30, 2024 03:40:43.634814024 CET	42836	443	192.168.2.23	91.189.91.43
Dec 30, 2024 03:41:14.350682974 CET	43928	443	192.168.2.23	91.189.91.42

System Behavior

Analysis Process: dash PID: 6292, Parent PID: 4331

General

Start time (UTC):	02:40:04
Start date (UTC):	30/12/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6292, Parent PID: 4331

General

Start time (UTC):	02:40:04
Start date (UTC):	30/12/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.X00wLryTcM /tmp/tmp.y59CMaNlei /tmp/tmp.QwUKvaMW2s
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: dash PID: 6293, Parent PID: 4331

General

Start time (UTC):	02:40:04
Start date (UTC):	30/12/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6293, Parent PID: 4331

General

Start time (UTC):	02:40:04
Start date (UTC):	30/12/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.X00wLryTcM /tmp/tmp.y59CMaNlei /tmp/tmp.QwUKvaMW2s
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: main_arm6.elf PID: 6305, Parent PID: 6222

General

Start time (UTC):	02:40:09
Start date (UTC):	30/12/2024
Path:	/tmp/main_arm6.elf
Arguments:	/tmp/main_arm6.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

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 main_arm6.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

Malware Analysis System Evasion

Stealing of Sensitive Information

Remote Access Functionality

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

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: dash PID: 6292, Parent PID: 4331

General

Chronological Activities

Analysis Process: rm PID: 6292, Parent PID: 4331

General

Chronological Activities

Analysis Process: dash PID: 6293, Parent PID: 4331

General

Chronological Activities

Analysis Process: rm PID: 6293, Parent PID: 4331

General

Chronological Activities

Analysis Process: main_arm6.elf PID: 6305, Parent PID: 6222

General

Chronological Activities

Linux Analysis Report
main_arm6.elf