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Linux Analysis Report
DI3Zukrm4Y.elf

Overview

General Information

Sample name:	DI3Zukrm4Y.elf renamed because original name is a hash value
Original sample name:	e2c9681b9c8bef5149b4c1b94fdc92a4.elf
Analysis ID:	1430857
MD5:	e2c9681b9c8bef5149b4c1b94fdc92a4
SHA1:	4c44da530be3d1697e08ffeb89030112e293fee6
SHA256:	2195f043fde01372fa09d0d11201b50b28248d8fef91fed6721c4976f50fb8f9
Tags:	32armelfmirai
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

Found strings indicative of a multi-platform dropper

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

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.

All HTTP servers contacted by the sample do not answer. The sample is likely an old dropper which does no longer work.

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

Static ELF header machine description suggests that the sample might only run correctly on MIPS or ARM architectures.

General Information

Joe Sandbox version:	40.0.0 Tourmaline
Analysis ID:	1430857
Start date and time:	2024-04-24 10:14:35 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 55s
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:	DI3Zukrm4Y.elf renamed because original name is a hash value
Original Sample Name:	e2c9681b9c8bef5149b4c1b94fdc92a4.elf
Detection:	MAL
Classification:	mal88.troj.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/DI3Zukrm4Y.elf
PID:	6247
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

DI3Zukrm4Y.elf (PID: 6247, Parent: 6162, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/DI3Zukrm4Y.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
DI3Zukrm4Y.elf	JoeSecurity_Okiru	Yara detected Okiru	Joe Security
DI3Zukrm4Y.elf	JoeSecurity_Mirai_3	Yara detected Mirai	Joe Security
DI3Zukrm4Y.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
DI3Zukrm4Y.elf	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x1d3bc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d3d0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d3e4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d3f8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d40c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d420:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d434:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d448:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d45c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d470:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d484:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d498:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d4ac:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d4c0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d4d4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d4e8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d4fc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d510:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d524:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d538:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d54c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
DI3Zukrm4Y.elf	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x1d27c:$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
6247.1.00007f08ac017000.00007f08ac037000.r-x.sdmp	JoeSecurity_Okiru	Yara detected Okiru	Joe Security
6247.1.00007f08ac017000.00007f08ac037000.r-x.sdmp	JoeSecurity_Mirai_3	Yara detected Mirai	Joe Security
6247.1.00007f08ac017000.00007f08ac037000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
6247.1.00007f08ac017000.00007f08ac037000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x1d3bc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d3d0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d3e4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d3f8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d40c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d420:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d434:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d448:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d45c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d470:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d484:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d498:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d4ac:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d4c0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d4d4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d4e8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d4fc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d510:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d524:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d538:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1d54c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
6247.1.00007f08ac017000.00007f08ac037000.r-x.sdmp	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x1d27c:$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: DI3Zukrm4Y.elf PID: 6247	JoeSecurity_Okiru	Yara detected Okiru	Joe Security
Process Memory Space: DI3Zukrm4Y.elf PID: 6247	JoeSecurity_Mirai_3	Yara detected Mirai	Joe Security
Process Memory Space: DI3Zukrm4Y.elf PID: 6247	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0xef99:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xefad:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xefc1:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xefd5:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xefe9:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xeffd:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf011:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf025:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf039:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf04d:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf061:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf075:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf089:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf09d:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf0b1:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf0c5:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf0d9:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf0ed:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf101:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf115:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf129:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
Process Memory Space: DI3Zukrm4Y.elf PID: 6247	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0xee7f:$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

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/abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ3f

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

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

Source: unknown	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: DI3Zukrm4Y.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: DI3Zukrm4Y.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
Source: 6247.1.00007f08ac017000.00007f08ac037000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 6247.1.00007f08ac017000.00007f08ac037000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
Source: Process Memory Space: DI3Zukrm4Y.elf PID: 6247, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: DI3Zukrm4Y.elf PID: 6247, 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/abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ3f

Source: ELF static info symbol of initial sample

.symtab present: no

Source: DI3Zukrm4Y.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: DI3Zukrm4Y.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: 6247.1.00007f08ac017000.00007f08ac037000.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: 6247.1.00007f08ac017000.00007f08ac037000.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: DI3Zukrm4Y.elf PID: 6247, 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: DI3Zukrm4Y.elf PID: 6247, 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@0/0

Source: /tmp/DI3Zukrm4Y.elf (PID: 6247)

Queries kernel information via 'uname':

Jump to behavior

Source: DI3Zukrm4Y.elf, 6247.1.000055be085b4000.000055be086e2000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: DI3Zukrm4Y.elf, 6247.1.000055be085b4000.000055be086e2000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: DI3Zukrm4Y.elf, 6247.1.00007ffff5efb000.00007ffff5f1c000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: DI3Zukrm4Y.elf, 6247.1.00007ffff5efb000.00007ffff5f1c000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Source: DI3Zukrm4Y.elf, 6247.1.00007ffff5efb000.00007ffff5f1c000.rw-.sdmp	Binary or memory string: *x86_64/usr/bin/qemu-arm/tmp/DI3Zukrm4Y.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/DI3Zukrm4Y.elf

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: DI3Zukrm4Y.elf, type: SAMPLE
Source: Yara match	File source: 6247.1.00007f08ac017000.00007f08ac037000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: DI3Zukrm4Y.elf PID: 6247, type: MEMORYSTR

Yara detected Okiru

Source: Yara match	File source: DI3Zukrm4Y.elf, type: SAMPLE
Source: Yara match	File source: 6247.1.00007f08ac017000.00007f08ac037000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: DI3Zukrm4Y.elf PID: 6247, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: DI3Zukrm4Y.elf, type: SAMPLE
Source: Yara match	File source: 6247.1.00007f08ac017000.00007f08ac037000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: DI3Zukrm4Y.elf PID: 6247, type: MEMORYSTR

Yara detected Okiru

Source: Yara match	File source: DI3Zukrm4Y.elf, type: SAMPLE
Source: Yara match	File source: 6247.1.00007f08ac017000.00007f08ac037000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: DI3Zukrm4Y.elf PID: 6247, 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 Scripting	Path Interception	Direct Volume Access	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

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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
DI3Zukrm4Y.elf	58%	ReversingLabs	Linux.Trojan.Mirai
DI3Zukrm4Y.elf	47%	Virustotal		Browse
DI3Zukrm4Y.elf	100%	Avira	EXP/ELF.Mirai.Z.A

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
109.202.202.202	WINSx8yLsb.elf	Get hash	malicious	Mirai, Okiru	Browse
	Rubify.arm.elf	Get hash	malicious	Mirai	Browse
	2TZqqUPBJw.elf	Get hash	malicious	Mirai, Okiru	Browse
	VlmPWVuJv9.elf	Get hash	malicious	Mirai, Okiru	Browse
	ke9n9bQgFS.elf	Get hash	malicious	Mirai, Okiru	Browse
	8awpc7GpMh.elf	Get hash	malicious	Unknown	Browse
	6WfrjCTjs8.elf	Get hash	malicious	Unknown	Browse
	cG1d8L6E2V.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Linux.Siggen.9999.14268.13066.elf	Get hash	malicious	Mirai	Browse
91.189.91.43	WINSx8yLsb.elf	Get hash	malicious	Mirai, Okiru	Browse
	Rubify.arm.elf	Get hash	malicious	Mirai	Browse
	2TZqqUPBJw.elf	Get hash	malicious	Mirai, Okiru	Browse
	VlmPWVuJv9.elf	Get hash	malicious	Mirai, Okiru	Browse
	ke9n9bQgFS.elf	Get hash	malicious	Mirai, Okiru	Browse
	8awpc7GpMh.elf	Get hash	malicious	Unknown	Browse
	6WfrjCTjs8.elf	Get hash	malicious	Unknown	Browse
	cG1d8L6E2V.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Linux.Siggen.9999.14268.13066.elf	Get hash	malicious	Mirai	Browse
91.189.91.42	WINSx8yLsb.elf	Get hash	malicious	Mirai, Okiru	Browse
	Rubify.arm.elf	Get hash	malicious	Mirai	Browse
	2TZqqUPBJw.elf	Get hash	malicious	Mirai, Okiru	Browse
	VlmPWVuJv9.elf	Get hash	malicious	Mirai, Okiru	Browse
	ke9n9bQgFS.elf	Get hash	malicious	Mirai, Okiru	Browse
	8awpc7GpMh.elf	Get hash	malicious	Unknown	Browse
	6WfrjCTjs8.elf	Get hash	malicious	Unknown	Browse
	cG1d8L6E2V.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Linux.Siggen.9999.14268.13066.elf	Get hash	malicious	Mirai	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	WINSx8yLsb.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	Rubify.arm.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	2TZqqUPBJw.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	VlmPWVuJv9.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	ke9n9bQgFS.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	az9a0rNKvy.elf	Get hash	malicious	Mirai, Okiru	Browse	185.125.190.26
	8awpc7GpMh.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	6WfrjCTjs8.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	cG1d8L6E2V.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
CANONICAL-ASGB	WINSx8yLsb.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	Rubify.arm.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	2TZqqUPBJw.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	VlmPWVuJv9.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	ke9n9bQgFS.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	az9a0rNKvy.elf	Get hash	malicious	Mirai, Okiru	Browse	185.125.190.26
	8awpc7GpMh.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	6WfrjCTjs8.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	cG1d8L6E2V.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
INIT7CH	WINSx8yLsb.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	Rubify.arm.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	2TZqqUPBJw.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	VlmPWVuJv9.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	ke9n9bQgFS.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	8awpc7GpMh.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	6WfrjCTjs8.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	cG1d8L6E2V.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	SecuriteInfo.com.Linux.Siggen.9999.14268.13066.elf	Get hash	malicious	Mirai	Browse	109.202.202.202

File type:	ELF 32-bit LSB executable, ARM, EABI4 version 1 (SYSV), statically linked, stripped
Entropy (8bit):	5.650792523350743
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	DI3Zukrm4Y.elf
File size:	148'092 bytes
MD5:	e2c9681b9c8bef5149b4c1b94fdc92a4
SHA1:	4c44da530be3d1697e08ffeb89030112e293fee6
SHA256:	2195f043fde01372fa09d0d11201b50b28248d8fef91fed6721c4976f50fb8f9
SHA512:	363ffedb5c64531d7e33bb252bd66ee1ceabcf6a818b1bdb6a8c1d319d0c058eea6046bb7c4ef87f85e1e4864eb73313e54b243b74880575463ceddae618b6b5
SSDEEP:	3072:ARpOoCrUKySLmXu20MYtad4RfTh4CddfCY65:ARQoCr59mXp0MIaSOAdfCYo
TLSH:	42E31B56F8818F12D5C111BAFE1E128E37131B78E2DE72129D246F747B8A97B0E3B905
File Content Preview:	.ELF..............(.....T...4...t@......4. ...(.....................P...P...............T...T...P....H..............Q.td..................................-...L..................@-.,@...0....S..... 0....S.........../..0...0...@..../..?......P.....-.@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:	147572
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	0x1cb30	0x0	0x6	AX	16
.fini	PROGBITS	0x24be0	0x1cbe0	0x10	0x0	0x6	AX	4
.rodata	PROGBITS	0x24bf0	0x1cbf0	0x2b60	0x0	0x2	A	8
.init_array	INIT_ARRAY	0x2f754	0x1f758	0x8	0x0	0x3	WA	4
.fini_array	FINI_ARRAY	0x2f75c	0x1f760	0x4	0x0	0x3	WA	4
.data.rel.ro	PROGBITS	0x2f764	0x1f768	0x78	0x0	0x3	WA	4
.got	PROGBITS	0x2f7dc	0x1f7e0	0x11c	0x4	0x3	WA	4
.data	PROGBITS	0x2f900	0x1f904	0x46f4	0x0	0x3	WA	32
.bss	NOBITS	0x33ff8	0x23ff8	0x49dc	0x0	0x3	WA	8
.ARM.attributes	ARM_ATTRIBUTES	0x0	0x23ff8	0x10	0x0	0x0		1
.shstrtab	STRTAB	0x0	0x24008	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	0x1f750	0x1f750	6.1088	0x5	R E	0x8000	.init .text .fini .rodata
LOAD	0x1f754	0x2f754	0x2f750	0x48a4	0x9280	0.5436	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

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 24, 2024 10:15:27.982613087 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 24, 2024 10:15:33.613919020 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 24, 2024 10:15:34.893644094 CEST	42516	80	192.168.2.23	109.202.202.202
Apr 24, 2024 10:15:48.459881067 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 24, 2024 10:16:00.746119976 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 24, 2024 10:16:04.841486931 CEST	42516	80	192.168.2.23	109.202.202.202
Apr 24, 2024 10:16:29.414062023 CEST	43928	443	192.168.2.23	91.189.91.42

System Behavior

Analysis Process: DI3Zukrm4Y.elf PID: 6247, Parent PID: 6162

General

Start time (UTC):	08:15:28
Start date (UTC):	24/04/2024
Path:	/tmp/DI3Zukrm4Y.elf
Arguments:	/tmp/DI3Zukrm4Y.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Source: DI3Zukrm4Y.elf	ReversingLabs: Detection: 57%
Source: DI3Zukrm4Y.elf	Virustotal: Detection: 46%			Perma Link

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 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

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Warning!

Linux Analysis Report DI3Zukrm4Y.elf

Overview

General Information

Detection

Signatures

Classification

Analysis Advice

General Information

Runtime Messages

Process Tree

Malware Threat Intel

Yara Signatures

Initial Sample

Memory Dumps

Snort Signatures

Joe Sandbox Signatures

AV Detection

Spreading

Networking

System Summary

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

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: DI3Zukrm4Y.elf PID: 6247, Parent PID: 6162

General

Chronological Activities

Linux Analysis Report
DI3Zukrm4Y.elf