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Linux Analysis Report
5pl5TxJ4lJ.elf

Overview

General Information

Sample name:	5pl5TxJ4lJ.elf renamed because original name is a hash value
Original sample name:	38e3cda1ec38edde16bd557cc5b9d37f.elf
Analysis ID:	1428696
MD5:	38e3cda1ec38edde16bd557cc5b9d37f
SHA1:	9d35752813d3b5b044910c36e57665d55e87da6b
SHA256:	5903d178ca1ed7b8ce2c265535f18a29a91e2adc2872f5dc2e7dd2e01584915d
Tags:	32elfmirairenesas
Infos:

Detection

Mirai, Okiru

Score:	88
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

Yara detected Okiru

Executes the "systemctl" command used for controlling the systemd system and service manager

Found strings indicative of a multi-platform dropper

Reads system version information

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

Sample has stripped symbol table

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

Yara signature match

Classification

Analysis Advice

Static ELF header machine description suggests that the sample might not execute correctly on this machine.

Exit code information suggests that the sample terminated abnormally, try to lookup the sample's target architecture.

Non-zero exit code suggests an error during the execution. Lookup the error code for hints.

General Information

Joe Sandbox version:	40.0.0 Tourmaline
Analysis ID:	1428696
Start date and time:	2024-04-19 12:03:24 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 5m 19s
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:	5pl5TxJ4lJ.elf renamed because original name is a hash value
Original Sample Name:	38e3cda1ec38edde16bd557cc5b9d37f.elf
Detection:	MAL
Classification:	mal88.troj.linELF@0/0@2/0

Runtime Messages

Command:	/tmp/5pl5TxJ4lJ.elf
PID:	5725
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

5pl5TxJ4lJ.elf (PID: 5725, Parent: 5528, MD5: 8943e5f8f8c280467b4472c15ae93ba9) Arguments: /tmp/5pl5TxJ4lJ.elf

systemd New Fork (PID: 5788, Parent: 1)

snap-failure (PID: 5788, Parent: 1, MD5: 69136a7d575731ce62349f2e4d3e5c36) Arguments: /usr/lib/snapd/snap-failure snapd

snap-failure New Fork (PID: 5805, Parent: 5788)

systemctl (PID: 5805, Parent: 5788, MD5: 4deddfb6741481f68aeac522cc26ff4b) Arguments: systemctl stop snapd.socket

snap-failure New Fork (PID: 5806, Parent: 5788)

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
5pl5TxJ4lJ.elf	JoeSecurity_Okiru	Yara detected Okiru	Joe Security
5pl5TxJ4lJ.elf	JoeSecurity_Mirai_3	Yara detected Mirai	Joe Security
5pl5TxJ4lJ.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
5pl5TxJ4lJ.elf	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x17ff0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18004:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18018:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1802c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18040:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18054:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18068:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1807c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18090:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x180a4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x180b8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x180cc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x180e0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x180f4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18108:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1811c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18130:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18144:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18158:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1816c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18180:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
5pl5TxJ4lJ.elf	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x17eb0:$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
5725.1.00007f8c40400000.00007f8c4041b000.r-x.sdmp	JoeSecurity_Okiru	Yara detected Okiru	Joe Security
5725.1.00007f8c40400000.00007f8c4041b000.r-x.sdmp	JoeSecurity_Mirai_3	Yara detected Mirai	Joe Security
5725.1.00007f8c40400000.00007f8c4041b000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
5725.1.00007f8c40400000.00007f8c4041b000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x17ff0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18004:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18018:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1802c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18040:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18054:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18068:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1807c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18090:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x180a4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x180b8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x180cc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x180e0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x180f4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18108:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1811c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18130:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18144:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18158:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1816c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18180:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
5725.1.00007f8c40400000.00007f8c4041b000.r-x.sdmp	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x17eb0:$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: 5pl5TxJ4lJ.elf PID: 5725	JoeSecurity_Okiru	Yara detected Okiru	Joe Security
Process Memory Space: 5pl5TxJ4lJ.elf PID: 5725	JoeSecurity_Mirai_3	Yara detected Mirai	Joe Security
Process Memory Space: 5pl5TxJ4lJ.elf PID: 5725	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x23d5:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x23e9:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x23fd:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2411:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2425:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2439:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x244d:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2461:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2475:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2489:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x249d:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x24b1:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x24c5:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x24d9:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x24ed:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2501:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2515:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2529:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x253d:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2551:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2565:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
Process Memory Space: 5pl5TxJ4lJ.elf PID: 5725	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x22bb:$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 4 entries

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: 5pl5TxJ4lJ.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: 5pl5TxJ4lJ.elf

ReversingLabs: Detection: 52%

Source: 5pl5TxJ4lJ.elf

String: HTTP/1.1 200 OKtop1hbt.armtop1hbt.arm5top1hbt.arm6top1hbt.arm7top1hbt.mipstop1hbt.mpsltop1hbt.x86_64top1hbt.sh4/proc/proc/%d/cmdlinenetstatwgetcurlbusybox/bin/busybox/proc//proc/%s/exe/proc/self/exevar/Challengeapp/hi3511gmDVRiboxusr/dvr_main _8182T_1108mnt/mtd/app/guivar/Kylinl0 c/udevdanko-app/ankosample _8182T_1104var/tmp/soniahicorestm_hi3511_dvr/usr/lib/systemd/systemd/usr/libexec/openssh/sftp-serverusr/shellmnt/sys/bin/boot/media/srv/var/run/sbin/lib/etc/dev/home/Davincitelnetsshwatchdog/var/spool/var/Sofiasshd/usr/compress/bin//compress/bin/compress/usr/bashhttpdtelnetddropbearropbearencodersystem/root/dvr_gui//root/dvr_app//anko-app//opt/abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/usr/sbin/reboot/usr/bin/reboot/usr/sbin/shutdown/usr/bin/shutdown/usr/sbin/poweroff/usr/bin/poweroff/usr/sbin/halt/usr/bin/halt3f

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

Source: unknown

DNS traffic detected: queries for: daisy.ubuntu.com

System Summary

Malicious sample detected (through community Yara rule)

Source: 5pl5TxJ4lJ.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5pl5TxJ4lJ.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
Source: 5725.1.00007f8c40400000.00007f8c4041b000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5725.1.00007f8c40400000.00007f8c4041b000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
Source: Process Memory Space: 5pl5TxJ4lJ.elf PID: 5725, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: 5pl5TxJ4lJ.elf PID: 5725, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown

Source: Initial sample	String containing 'busybox' found: busybox
Source: Initial sample	String containing 'busybox' found: /bin/busybox
Source: Initial sample	String containing 'busybox' found: HTTP/1.1 200 OKtop1hbt.armtop1hbt.arm5top1hbt.arm6top1hbt.arm7top1hbt.mipstop1hbt.mpsltop1hbt.x86_64top1hbt.sh4/proc/proc/%d/cmdlinenetstatwgetcurlbusybox/bin/busybox/proc//proc/%s/exe/proc/self/exevar/Challengeapp/hi3511gmDVRiboxusr/dvr_main _8182T_1108mnt/mtd/app/guivar/Kylinl0 c/udevdanko-app/ankosample _8182T_1104var/tmp/soniahicorestm_hi3511_dvr/usr/lib/systemd/systemd/usr/libexec/openssh/sftp-serverusr/shellmnt/sys/bin/boot/media/srv/var/run/sbin/lib/etc/dev/home/Davincitelnetsshwatchdog/var/spool/var/Sofiasshd/usr/compress/bin//compress/bin/compress/usr/bashhttpdtelnetddropbearropbearencodersystem/root/dvr_gui//root/dvr_app//anko-app//opt/abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/usr/sbin/reboot/usr/bin/reboot/usr/sbin/shutdown/usr/bin/shutdown/usr/sbin/poweroff/usr/bin/poweroff/usr/sbin/halt/usr/bin/halt3f

Source: ELF static info symbol of initial sample

.symtab present: no

Source: 5pl5TxJ4lJ.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: 5pl5TxJ4lJ.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: 5725.1.00007f8c40400000.00007f8c4041b000.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: 5725.1.00007f8c40400000.00007f8c4041b000.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: 5pl5TxJ4lJ.elf PID: 5725, 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: 5pl5TxJ4lJ.elf PID: 5725, 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: mal88.troj.linELF@0/0@2/0

Source: /usr/lib/snapd/snap-failure (PID: 5805)

Systemctl executable: /usr/bin/systemctl -> systemctl stop snapd.socket

Jump to behavior

Source: /usr/lib/snapd/snap-failure (PID: 5788)

Reads version info: /proc/version

Jump to behavior

Source: /tmp/5pl5TxJ4lJ.elf (PID: 5725)

Queries kernel information via 'uname':

Jump to behavior

Source: 5pl5TxJ4lJ.elf, 5725.1.00007ffdd09ec000.00007ffdd0a0d000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-sh4/tmp/5pl5TxJ4lJ.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/5pl5TxJ4lJ.elf
Source: 5pl5TxJ4lJ.elf, 5725.1.00005574548c3000.0000557454926000.rw-.sdmp	Binary or memory string: TtU5!/etc/qemu-binfmt/sh4
Source: 5pl5TxJ4lJ.elf, 5725.1.00007ffdd09ec000.00007ffdd0a0d000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-sh4
Source: 5pl5TxJ4lJ.elf, 5725.1.00005574548c3000.0000557454926000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/sh4
Source: 5pl5TxJ4lJ.elf, 5725.1.00007ffdd09ec000.00007ffdd0a0d000.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: 5pl5TxJ4lJ.elf, type: SAMPLE
Source: Yara match	File source: 5725.1.00007f8c40400000.00007f8c4041b000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: 5pl5TxJ4lJ.elf PID: 5725, type: MEMORYSTR

Yara detected Okiru

Source: Yara match	File source: 5pl5TxJ4lJ.elf, type: SAMPLE
Source: Yara match	File source: 5725.1.00007f8c40400000.00007f8c4041b000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: 5pl5TxJ4lJ.elf PID: 5725, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: 5pl5TxJ4lJ.elf, type: SAMPLE
Source: Yara match	File source: 5725.1.00007f8c40400000.00007f8c4041b000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: 5pl5TxJ4lJ.elf PID: 5725, type: MEMORYSTR

Yara detected Okiru

Source: Yara match	File source: 5pl5TxJ4lJ.elf, type: SAMPLE
Source: Yara match	File source: 5725.1.00007f8c40400000.00007f8c4041b000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: 5pl5TxJ4lJ.elf PID: 5725, 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	1 Scripting	Valid Accounts	Windows Management Instrumentation	1 Systemd Service	1 Systemd Service	Direct Volume Access	OS Credential Dumping	11 Security Software Discovery	Remote Services	Data from Local System	1 Non-Application Layer Protocol	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	1 Scripting	Boot or Logon Initialization Scripts	Rootkit	LSASS Memory	1 System Information 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

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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	Link
5pl5TxJ4lJ.elf	53%	ReversingLabs	Linux.Trojan.Mirai
5pl5TxJ4lJ.elf	100%	Avira	EXP/ELF.Mirai.Z.A

Name	IP	Active	Malicious	Antivirus Detection	Reputation
daisy.ubuntu.com	162.213.35.25	true	false		high

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	2cZvbPkMmG.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.25
	ZRI7AeFEI7.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.25
	Hft4YboT6s.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.25
	pcDPclfqrB.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.25
	uFOd62iz2f.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.25
	Lx4Z8fLn0G.elf	Get hash	malicious	Mirai, Moobot, Okiru	Browse	162.213.35.25
	NlF293hgXW.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.25
	PN9QHDmpS1.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.24
	eGjHpgUwlt.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.25
	ELAl0l2tfz.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.25

File type:	ELF 32-bit LSB executable, Renesas SH, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.326807379875761
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	5pl5TxJ4lJ.elf
File size:	126'180 bytes
MD5:	38e3cda1ec38edde16bd557cc5b9d37f
SHA1:	9d35752813d3b5b044910c36e57665d55e87da6b
SHA256:	5903d178ca1ed7b8ce2c265535f18a29a91e2adc2872f5dc2e7dd2e01584915d
SHA512:	9824a487c5da48b727f71d2c7f8b1bc7d92e10ef6ddd06f59614e2482588877a30af785f29cfcb8383665da00ab622f0a2ddef4522f7320f365c762966dfeb83
SSDEEP:	3072:vR4zUjpm++7cEjRLZIO58zzcy9hVlTUW6c:vUUV5URLFy9xoWB
TLSH:	1CC37CB2D8192FA8D024D8B4F4B88FB81B63A58581571FF965B7C3B44487D8DF504BB8
File Content Preview:	.ELF.....................@.4...,.......4. ...(...............@...@...........................B...B.(G..............Q.td............................././"O.n........#.@........#.*@.w...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:	125740
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	0x17720	0x0	0x6	AX	32
.fini	PROGBITS	0x417800	0x17800	0x24	0x0	0x6	AX	4
.rodata	PROGBITS	0x417824	0x17824	0x2b98	0x0	0x2	A	4
.ctors	PROGBITS	0x42a3c0	0x1a3c4	0xc	0x0	0x3	WA	4
.dtors	PROGBITS	0x42a3cc	0x1a3d0	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x42a3e0	0x1a3e4	0x46f4	0x0	0x3	WA	32
.got	PROGBITS	0x42ead4	0x1ead8	0x10	0x4	0x3	WA	4
.bss	NOBITS	0x42eae4	0x1eae8	0x49d8	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0x1eae8	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	0x1a3bc	0x1a3bc	6.9370	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x1a3c0	0x42a3c0	0x42a3bc	0x4728	0x190fc	0.4124	0x6	RW	0x10000	.ctors .dtors .data .got .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 19, 2024 12:05:01.547858000 CEST	34082	53	192.168.2.13	1.1.1.1
Apr 19, 2024 12:05:01.547959089 CEST	48918	53	192.168.2.13	1.1.1.1
Apr 19, 2024 12:05:01.652220011 CEST	53	48918	1.1.1.1	192.168.2.13
Apr 19, 2024 12:05:01.653386116 CEST	53	34082	1.1.1.1	192.168.2.13

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Apr 19, 2024 12:05:01.547858000 CEST	192.168.2.13	1.1.1.1	0x558a	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Apr 19, 2024 12:05:01.547959089 CEST	192.168.2.13	1.1.1.1	0xb332	Standard query (0)	daisy.ubuntu.com	28	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Apr 19, 2024 12:05:01.653386116 CEST	1.1.1.1	192.168.2.13	0x558a	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false
Apr 19, 2024 12:05:01.653386116 CEST	1.1.1.1	192.168.2.13	0x558a	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: 5pl5TxJ4lJ.elf PID: 5725, Parent PID: 5528

General

Start time (UTC):	10:04:59
Start date (UTC):	19/04/2024
Path:	/tmp/5pl5TxJ4lJ.elf
Arguments:	/tmp/5pl5TxJ4lJ.elf
File size:	4139976 bytes
MD5 hash:	8943e5f8f8c280467b4472c15ae93ba9

Start time (UTC):	10:05:39
Start date (UTC):	19/04/2024
Path:	/usr/lib/systemd/systemd
Arguments:	-
File size:	1620224 bytes
MD5 hash:	9b2bec7092a40488108543f9334aab75

Start time (UTC):	10:05:39
Start date (UTC):	19/04/2024
Path:	/usr/lib/snapd/snap-failure
Arguments:	/usr/lib/snapd/snap-failure snapd
File size:	4764904 bytes
MD5 hash:	69136a7d575731ce62349f2e4d3e5c36

Start time (UTC):	10:05:39
Start date (UTC):	19/04/2024
Path:	/usr/lib/snapd/snap-failure
Arguments:	-
File size:	4764904 bytes
MD5 hash:	69136a7d575731ce62349f2e4d3e5c36

Start time (UTC):	10:05:39
Start date (UTC):	19/04/2024
Path:	/usr/bin/systemctl
Arguments:	systemctl stop snapd.socket
File size:	996584 bytes
MD5 hash:	4deddfb6741481f68aeac522cc26ff4b

Start time (UTC):	10:05:39
Start date (UTC):	19/04/2024
Path:	/usr/lib/snapd/snap-failure
Arguments:	-
File size:	4764904 bytes
MD5 hash:	69136a7d575731ce62349f2e4d3e5c36

Description:	This technique has been deprecated. Please use Command and Scripting Interpreter where appropriate.
Tactics:	Defense Evasion, Execution
Data Sources:
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may create or modify systemd services to repeatedly execute malicious payloads as part of persistence. Systemd is a system and service manager commonly used for managing background daemon processes (also known as services) and other system resources.Systemd is the default initialization (init) system on many Linux distributions replacing legacy init systems, including SysVinit and Upstart, while remaining backwards compatible.
Tactics:	Persistence, Privilege Escalation
Data Sources:	Command: Command Execution, File: File Creation, File: File Modification, Process: Process Creation, Service: Service Creation, Service: Service Modification
Platforms:	Linux
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:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information 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, Process: OS API Execution, Process: Process Creation
Platforms:	IaaS, Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

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

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report 5pl5TxJ4lJ.elf

Overview

General Information

Detection

Signatures

Classification

Analysis Advice

General Information

Warnings

Runtime Messages

Process Tree

Malware Threat Intel

Yara Signatures

Initial Sample

Memory Dumps

Snort Signatures

Joe Sandbox Signatures

AV Detection

Spreading

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

World Map of Contacted IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

Network Port Distribution

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: 5pl5TxJ4lJ.elf PID: 5725, Parent PID: 5528

General

Chronological Activities

Analysis Process: systemd PID: 5788, Parent PID: 1

General

Chronological Activities

Analysis Process: snap-failure PID: 5788, Parent PID: 1

General

Chronological Activities

Analysis Process: snap-failure PID: 5805, Parent PID: 5788

General

Chronological Activities

Analysis Process: systemctl PID: 5805, Parent PID: 5788

General

Chronological Activities

Analysis Process: snap-failure PID: 5806, Parent PID: 5788

General

Chronological Activities

Linux Analysis Report
5pl5TxJ4lJ.elf