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Linux Analysis Report
ldCdti5sRA.elf

Overview

General Information

Sample name:	ldCdti5sRA.elf renamed because original name is a hash value
Original sample name:	d5a02e41941999d6c5a2756fe8de5e4c.elf
Analysis ID:	1431594
MD5:	d5a02e41941999d6c5a2756fe8de5e4c
SHA1:	dc131c2d22f84376ae3d4e47062d57d721f1b8e8
SHA256:	44b5658b82e3ec574d8b07a2cea1d22b58b68cf73a76e5efd64034c40ac67cf0
Tags:	32elfmiraipowerpc
Infos:

Detection

Mirai, Okiru

Score:	80
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.

General Information

Joe Sandbox version:	40.0.0 Tourmaline
Analysis ID:	1431594
Start date and time:	2024-04-25 13:55:08 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 33s
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:	ldCdti5sRA.elf renamed because original name is a hash value
Original Sample Name:	d5a02e41941999d6c5a2756fe8de5e4c.elf
Detection:	MAL
Classification:	mal80.troj.linELF@0/0@2/0

Runtime Messages

Command:	/tmp/ldCdti5sRA.elf
PID:	5435
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

ldCdti5sRA.elf (PID: 5435, Parent: 5358, MD5: ae65271c943d3451b7f026d1fadccea6) Arguments: /tmp/ldCdti5sRA.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
ldCdti5sRA.elf	JoeSecurity_Okiru	Yara detected Okiru	Joe Security
ldCdti5sRA.elf	JoeSecurity_Mirai_3	Yara detected Mirai	Joe Security
ldCdti5sRA.elf	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x1b048:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b05c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b070:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b084:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b098:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b0ac:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b0c0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b0d4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b0e8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b0fc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b110:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b124:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b138:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b14c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b160:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b174:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b188:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b19c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b1b0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b1c4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b1d8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F

Memory Dumps

Source	Rule	Description	Author	Strings
5435.1.00007f480c001000.00007f480c01f000.r-x.sdmp	JoeSecurity_Okiru	Yara detected Okiru	Joe Security
5435.1.00007f480c001000.00007f480c01f000.r-x.sdmp	JoeSecurity_Mirai_3	Yara detected Mirai	Joe Security
5435.1.00007f480c001000.00007f480c01f000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x1b048:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b05c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b070:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b084:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b098:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b0ac:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b0c0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b0d4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b0e8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b0fc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b110:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b124:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b138:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b14c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b160:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b174:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b188:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b19c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b1b0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b1c4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1b1d8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
Process Memory Space: ldCdti5sRA.elf PID: 5435	JoeSecurity_Okiru	Yara detected Okiru	Joe Security
Process Memory Space: ldCdti5sRA.elf PID: 5435	JoeSecurity_Mirai_3	Yara detected Mirai	Joe Security
Process Memory Space: ldCdti5sRA.elf PID: 5435	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x1716:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x172a:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x173e:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1752:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1766:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x177a:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x178e:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x17a2:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x17b6:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x17ca:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x17de:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x17f2:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1806:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x181a:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x182e:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1842:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1856:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x186a:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x187e:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1892:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x18a6:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
Click to see the 1 entries

String: HTTP/1.1 200 OKcundi.armcundi.arm5cundi.arm6cundi.arm7cundi.mipscundi.mpslcundi.x86_64cundi.sh4/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/bin/busybox/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//proc/proc/%d/cmdlinewgetcurlbusyboxecho

Source: global traffic

TCP traffic: 192.168.2.13:48202 -> 185.125.190.26:443

Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26
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: global traffic

DNS traffic detected: DNS query: daisy.ubuntu.com

Source: unknown

Network traffic detected: HTTP traffic on port 48202 -> 443

System Summary

Malicious sample detected (through community Yara rule)

Source: ldCdti5sRA.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5435.1.00007f480c001000.00007f480c01f000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: ldCdti5sRA.elf PID: 5435, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown

Source: Initial sample	String containing 'busybox' found: /bin/busybox
Source: Initial sample	String containing 'busybox' found: busybox
Source: Initial sample	String containing 'busybox' found: HTTP/1.1 200 OKcundi.armcundi.arm5cundi.arm6cundi.arm7cundi.mipscundi.mpslcundi.x86_64cundi.sh4/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/bin/busybox/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//proc/proc/%d/cmdlinewgetcurlbusyboxecho

Source: ELF static info symbol of initial sample

.symtab present: no

Source: ldCdti5sRA.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: 5435.1.00007f480c001000.00007f480c01f000.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: Process Memory Space: ldCdti5sRA.elf PID: 5435, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16

Source: classification engine

Classification label: mal80.troj.linELF@0/0@2/0

Source: /tmp/ldCdti5sRA.elf (PID: 5435)

Queries kernel information via 'uname':

Jump to behavior

Source: ldCdti5sRA.elf, 5435.1.000055ba2584a000.000055ba258d9000.rw-.sdmp	Binary or memory string: !/etc/qemu-binfmt/ppc11!hotpluggableq
Source: ldCdti5sRA.elf, 5435.1.000055ba2584a000.000055ba258d9000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/ppc
Source: ldCdti5sRA.elf, 5435.1.00007fff81c24000.00007fff81c45000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-ppc
Source: ldCdti5sRA.elf, 5435.1.00007fff81c24000.00007fff81c45000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Source: ldCdti5sRA.elf, 5435.1.00007fff81c24000.00007fff81c45000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-ppc/tmp/ldCdti5sRA.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/ldCdti5sRA.elf

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: ldCdti5sRA.elf, type: SAMPLE
Source: Yara match	File source: 5435.1.00007f480c001000.00007f480c01f000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: ldCdti5sRA.elf PID: 5435, type: MEMORYSTR

Yara detected Okiru

Source: Yara match	File source: ldCdti5sRA.elf, type: SAMPLE
Source: Yara match	File source: 5435.1.00007f480c001000.00007f480c01f000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: ldCdti5sRA.elf PID: 5435, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: ldCdti5sRA.elf, type: SAMPLE
Source: Yara match	File source: 5435.1.00007f480c001000.00007f480c01f000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: ldCdti5sRA.elf PID: 5435, type: MEMORYSTR

Yara detected Okiru

Source: Yara match	File source: ldCdti5sRA.elf, type: SAMPLE
Source: Yara match	File source: 5435.1.00007f480c001000.00007f480c01f000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: ldCdti5sRA.elf PID: 5435, 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 Non-Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	2 Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact

Malware Configuration

⊘No configs have been found

Behavior Graph

Hide Legend

Legend:

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

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
ldCdti5sRA.elf	38%	ReversingLabs	Linux.Trojan.Mirai
ldCdti5sRA.elf	42%	Virustotal		Browse
ldCdti5sRA.elf	100%	Avira	EXP/ELF.Mirai.Z.A

Name	IP	Active	Malicious	Antivirus Detection	Reputation
daisy.ubuntu.com	162.213.35.24	true	false		high

World Map of Contacted IPs

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

Public IPs

IP	Domain	Country	Flag	ASN	ASN Name	Malicious
185.125.190.26	unknown	United Kingdom		41231	CANONICAL-ASGB	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
185.125.190.26	vlxx.x86_64.elf	Get hash	malicious	Mirai, Okiru	Browse
	gCqnbN34QY.elf	Get hash	malicious	Unknown	Browse
	PylIt4izlJ.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Trojan.Linux.GenericKD.24576.11147.21229.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Trojan.Linux.GenericKD.24541.15958.30966.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Other.Malware-gen.31307.16494.elf	Get hash	malicious	Mirai	Browse
	gFHZn3Ck3v.elf	Get hash	malicious	Unknown	Browse
	2V7qaSy0Jl.elf	Get hash	malicious	Unknown	Browse
	EfsIiZhHxS.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	7Ud8fq8tJs.elf	Get hash	malicious	Gafgyt	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	vlxx.x86_64.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.24
	vlxx.arm.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.25
	vlxx.mips.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.24
	vlxx.arm6.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.25
	A29IA3dFx4.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	SecuriteInfo.com.Trojan.Linux.GenericKD.24480.22012.5017.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	8dToMPcvO1.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	5RiFmXTOMp.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	Hs97Nxxy5u.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	n0CEgmtnuf.elf	Get hash	malicious	Mirai	Browse	162.213.35.25

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	vlxx.x86.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	vlxx.x86_64.elf	Get hash	malicious	Mirai, Okiru	Browse	185.125.190.26
	vlxx.mpsl.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	bJC4H147mB.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	XM3JcqhdgB.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	gCqnbN34QY.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	VUjiythPAQ.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	PylIt4izlJ.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	TGIQpNxMb0.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	qnW5l5Iegw	Get hash	malicious	Xmrig	Browse	91.189.91.42

File type:	ELF 32-bit MSB executable, PowerPC or cisco 4500, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	5.676492840163698
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	ldCdti5sRA.elf
File size:	139'968 bytes
MD5:	d5a02e41941999d6c5a2756fe8de5e4c
SHA1:	dc131c2d22f84376ae3d4e47062d57d721f1b8e8
SHA256:	44b5658b82e3ec574d8b07a2cea1d22b58b68cf73a76e5efd64034c40ac67cf0
SHA512:	1475bb6c5568d05f35a32f851fa737c4461b1c366af99adc77bd6dc31b70cad47736eb3983684620e3e9845b962eb4deae90bffb7becea7820a52795488bfe63
SSDEEP:	1536:7UEY1X2nBQOjacTV7cx3HFf+XTk87YgAMtZmtswAnRRAdAWfC4AIPvGZ5vqSc:wJhax9cxXFf4hJDJX5vqV
TLSH:	F0D32A06B71C0947D1632EB43B3B2BD1D3EF9ED121E4F640255EAA8A91B1D321586ECE
File Content Preview:	.ELF...........................4.. ......4. ...(.......................0...0...............4...4...0..G`...4........dt.Q.............................!..\|......$H...H..Y...$8!. \|...N.. .!..\|.......?.........!X..../...@..`= ..;..`.....+../...A..$8...}).....

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, big endian
Version:	1 (current)
Machine:	PowerPC
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x100001f8
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	139488
Section Header Size:	40
Number of Section Headers:	12
Header String Table Index:	11

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x10000094	0x94	0x24	0x0	0x6	AX	4
.text	PROGBITS	0x100000b8	0xb8	0x1aab0	0x0	0x6	AX	4
.fini	PROGBITS	0x1001ab68	0x1ab68	0x20	0x0	0x6	AX	4
.rodata	PROGBITS	0x1001ab88	0x1ab88	0x2da8	0x0	0x2	A	8
.ctors	PROGBITS	0x1002d934	0x1d938	0xc	0x0	0x3	WA	4
.dtors	PROGBITS	0x1002d940	0x1d944	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x1002d960	0x1d964	0x4696	0x0	0x3	WA	32
.sdata	PROGBITS	0x10031ff8	0x21ffc	0x98	0x0	0x3	WA	4
.sbss	NOBITS	0x10032090	0x22094	0xc8	0x0	0x3	WA	4
.bss	NOBITS	0x10032158	0x22094	0x4910	0x0	0x3	WA	8
.shstrtab	STRTAB	0x0	0x22094	0x4b	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x10000000	0x10000000	0x1d930	0x1d930	6.2019	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x1d934	0x1002d934	0x1002d930	0x4760	0x19134	0.4517	0x6	RW	0x10000	.ctors .dtors .data .sdata .sbss .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 25, 2024 13:56:00.874394894 CEST	48202	443	192.168.2.13	185.125.190.26
Apr 25, 2024 13:56:31.594368935 CEST	48202	443	192.168.2.13	185.125.190.26

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 25, 2024 13:55:51.313577890 CEST	41052	53	192.168.2.13	1.1.1.1
Apr 25, 2024 13:55:51.313653946 CEST	60867	53	192.168.2.13	1.1.1.1
Apr 25, 2024 13:55:51.423954964 CEST	53	60867	1.1.1.1	192.168.2.13
Apr 25, 2024 13:55:51.424575090 CEST	53	41052	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 25, 2024 13:55:51.313577890 CEST	192.168.2.13	1.1.1.1	0x1d8c	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Apr 25, 2024 13:55:51.313653946 CEST	192.168.2.13	1.1.1.1	0x860e	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 25, 2024 13:55:51.424575090 CEST	1.1.1.1	192.168.2.13	0x1d8c	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false
Apr 25, 2024 13:55:51.424575090 CEST	1.1.1.1	192.168.2.13	0x1d8c	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: ldCdti5sRA.elf PID: 5435, Parent PID: 5358

General

Start time (UTC):	11:55:48
Start date (UTC):	25/04/2024
Path:	/tmp/ldCdti5sRA.elf
Arguments:	/tmp/ldCdti5sRA.elf
File size:	5388968 bytes
MD5 hash:	ae65271c943d3451b7f026d1fadccea6

Source: ldCdti5sRA.elf	ReversingLabs: Detection: 37%
Source: ldCdti5sRA.elf	Virustotal: Detection: 42%			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 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 ldCdti5sRA.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

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: ldCdti5sRA.elf PID: 5435, Parent PID: 5358

General

Chronological Activities

Linux Analysis Report
ldCdti5sRA.elf