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Linux Analysis Report
LmwJkVcLpC.elf

Overview

General Information

Sample name:	LmwJkVcLpC.elf renamed because original name is a hash value
Original sample name:	df39083921b75fc87886ad292f134761.elf
Analysis ID:	1431727
MD5:	df39083921b75fc87886ad292f134761
SHA1:	f02b3a7598c3b5c7c65f32ed82f0b4ec421b7d15
SHA256:	9dd23359f0ac73f1da8a939edc514863f6a096bebc18979d42fcfdc8dff3c344
Tags:	32elfmirairenesas
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

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:	1431727
Start date and time:	2024-04-25 17:13:54 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 41s
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:	LmwJkVcLpC.elf renamed because original name is a hash value
Original Sample Name:	df39083921b75fc87886ad292f134761.elf
Detection:	MAL
Classification:	mal80.troj.linELF@0/0@2/0

Runtime Messages

Command:	/tmp/LmwJkVcLpC.elf
PID:	5548
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

LmwJkVcLpC.elf (PID: 5548, Parent: 5464, MD5: 8943e5f8f8c280467b4472c15ae93ba9) Arguments: /tmp/LmwJkVcLpC.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
LmwJkVcLpC.elf	JoeSecurity_Okiru	Yara detected Okiru	Joe Security
LmwJkVcLpC.elf	JoeSecurity_Mirai_3	Yara detected Mirai	Joe Security
LmwJkVcLpC.elf	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x16b00:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16b14:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16b28:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16b3c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16b50:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16b64:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16b78:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16b8c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16ba0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16bb4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16bc8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16bdc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16bf0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16c04:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16c18:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16c2c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16c40:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16c54:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16c68:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16c7c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16c90:$a: 2F 78 33 38 2F 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
5548.1.00007f8264400000.00007f826441a000.r-x.sdmp	JoeSecurity_Okiru	Yara detected Okiru	Joe Security
5548.1.00007f8264400000.00007f826441a000.r-x.sdmp	JoeSecurity_Mirai_3	Yara detected Mirai	Joe Security
5548.1.00007f8264400000.00007f826441a000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x16b00:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16b14:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16b28:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16b3c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16b50:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16b64:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16b78:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16b8c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16ba0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16bb4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16bc8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16bdc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16bf0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16c04:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16c18:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16c2c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16c40:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16c54:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16c68:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16c7c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16c90:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
Process Memory Space: LmwJkVcLpC.elf PID: 5548	JoeSecurity_Okiru	Yara detected Okiru	Joe Security
Process Memory Space: LmwJkVcLpC.elf PID: 5548	JoeSecurity_Mirai_3	Yara detected Mirai	Joe Security
Process Memory Space: LmwJkVcLpC.elf PID: 5548	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x1f98:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1fac:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1fc0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1fd4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1fe8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1ffc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2010:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2024:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2038:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x204c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2060:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2074:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2088:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x209c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x20b0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x20c4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x20d8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x20ec:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2100:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2114:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2128:$a: 2F 78 33 38 2F 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 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: global traffic

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

System Summary

Malicious sample detected (through community Yara rule)

Source: LmwJkVcLpC.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5548.1.00007f8264400000.00007f826441a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: LmwJkVcLpC.elf PID: 5548, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c 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: LmwJkVcLpC.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: 5548.1.00007f8264400000.00007f826441a000.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: LmwJkVcLpC.elf PID: 5548, 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/LmwJkVcLpC.elf (PID: 5548)

Queries kernel information via 'uname':

Jump to behavior

Source: LmwJkVcLpC.elf, 5548.1.00007ffef0a7b000.00007ffef0a9c000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-sh4
Source: LmwJkVcLpC.elf, 5548.1.00007ffef0a7b000.00007ffef0a9c000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-sh4/tmp/LmwJkVcLpC.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/LmwJkVcLpC.elf
Source: LmwJkVcLpC.elf, 5548.1.000056161434a000.00005616143ad000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/sh4
Source: LmwJkVcLpC.elf, 5548.1.00007ffef0a7b000.00007ffef0a9c000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Source: LmwJkVcLpC.elf, 5548.1.000056161434a000.00005616143ad000.rw-.sdmp	Binary or memory string: V5!/etc/qemu-binfmt/sh4

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: LmwJkVcLpC.elf, type: SAMPLE
Source: Yara match	File source: 5548.1.00007f8264400000.00007f826441a000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: LmwJkVcLpC.elf PID: 5548, type: MEMORYSTR

Yara detected Okiru

Source: Yara match	File source: LmwJkVcLpC.elf, type: SAMPLE
Source: Yara match	File source: 5548.1.00007f8264400000.00007f826441a000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: LmwJkVcLpC.elf PID: 5548, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: LmwJkVcLpC.elf, type: SAMPLE
Source: Yara match	File source: 5548.1.00007f8264400000.00007f826441a000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: LmwJkVcLpC.elf PID: 5548, type: MEMORYSTR

Yara detected Okiru

Source: Yara match	File source: LmwJkVcLpC.elf, type: SAMPLE
Source: Yara match	File source: 5548.1.00007f8264400000.00007f826441a000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: LmwJkVcLpC.elf PID: 5548, 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 Non-Application Layer Protocol	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	Rootkit	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	1 Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service

Malware Configuration

⊘No configs have been found

Behavior Graph

Hide Legend

Legend:

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

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
LmwJkVcLpC.elf	50%	ReversingLabs	Linux.Trojan.Mirai
LmwJkVcLpC.elf	45%	Virustotal		Browse
LmwJkVcLpC.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

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	6fV4tfoJp2.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	hz2ffABF7w.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.25
	fqEpqMWF6r.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	D0dhEeGfv4.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.25
	ag0OpPbO7I.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.24
	IrnO5ZI3En.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	WPKTVkI0fl.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.24
	WwKYOW4jIg.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	tw7rloKDkG.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	ZcOjro0Chh.elf	Get hash	malicious	Mirai	Browse	162.213.35.25

File type:	ELF 32-bit LSB executable, Renesas SH, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.286838182914111
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	LmwJkVcLpC.elf
File size:	121'828 bytes
MD5:	df39083921b75fc87886ad292f134761
SHA1:	f02b3a7598c3b5c7c65f32ed82f0b4ec421b7d15
SHA256:	9dd23359f0ac73f1da8a939edc514863f6a096bebc18979d42fcfdc8dff3c344
SHA512:	dc9f4dc3a3e9c36f57142993694f602946e1f9bf5da2af145a042389723e963ad6f6ecef7cb9962a723febf1d9b0e2afb3b68fcdf507a2c74b3b6d1e77935ac2
SSDEEP:	3072:wm9Mxs30x0AYULqfST/PvhMEHnPSVZVfDpZd:5KQ0EULqaHnc7fD7
TLSH:	3AC36DB2DC192FA8D164D9B4B4B88FB81B53A58541572FB969BBC3740087D8EF500BF8
File Content Preview:	.ELF.....................@.4...,.......4. ...(...............@...@...........................B...B.8G..............Q.td............................././"O.n........#.@........#.*@.i...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:	121388
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	0x16920	0x0	0x6	AX	32
.fini	PROGBITS	0x416a00	0x16a00	0x24	0x0	0x6	AX	4
.rodata	PROGBITS	0x416a24	0x16a24	0x2888	0x0	0x2	A	4
.ctors	PROGBITS	0x4292b0	0x192b4	0xc	0x0	0x3	WA	4
.dtors	PROGBITS	0x4292bc	0x192c0	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x4292e0	0x192e4	0x46f4	0x0	0x3	WA	32
.got	PROGBITS	0x42d9d4	0x1d9d8	0x10	0x4	0x3	WA	4
.bss	NOBITS	0x42d9e4	0x1d9e8	0x49d8	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0x1d9e8	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	0x192ac	0x192ac	6.9211	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x192b0	0x4292b0	0x4292ac	0x4738	0x1910c	0.4096	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 25, 2024 17:14:54.514050961 CEST	45156	53	192.168.2.14	8.8.8.8
Apr 25, 2024 17:14:54.624250889 CEST	53	45156	8.8.8.8	192.168.2.14
Apr 25, 2024 17:14:54.624330997 CEST	45156	53	192.168.2.14	8.8.8.8
Apr 25, 2024 17:14:54.624399900 CEST	45156	53	192.168.2.14	8.8.8.8
Apr 25, 2024 17:14:54.624623060 CEST	53	45156	8.8.8.8	192.168.2.14
Apr 25, 2024 17:14:54.624823093 CEST	45156	53	192.168.2.14	8.8.8.8
Apr 25, 2024 17:14:54.734570026 CEST	53	45156	8.8.8.8	192.168.2.14
Apr 25, 2024 17:14:54.734592915 CEST	53	45156	8.8.8.8	192.168.2.14
Apr 25, 2024 17:14:54.734908104 CEST	45156	53	192.168.2.14	8.8.8.8
Apr 25, 2024 17:14:56.735461950 CEST	53	45156	8.8.8.8	192.168.2.14
Apr 25, 2024 17:14:56.735692978 CEST	45156	53	192.168.2.14	8.8.8.8
Apr 25, 2024 17:14:56.845531940 CEST	53	45156	8.8.8.8	192.168.2.14

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Apr 25, 2024 17:14:54.514050961 CEST	192.168.2.14	8.8.8.8	0x8120	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Apr 25, 2024 17:14:54.624399900 CEST	192.168.2.14	8.8.8.8	0xe3b	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 17:14:54.624623060 CEST	8.8.8.8	192.168.2.14	0x8120	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false
Apr 25, 2024 17:14:54.624623060 CEST	8.8.8.8	192.168.2.14	0x8120	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: LmwJkVcLpC.elf PID: 5548, Parent PID: 5464

General

Start time (UTC):	15:14:52
Start date (UTC):	25/04/2024
Path:	/tmp/LmwJkVcLpC.elf
Arguments:	/tmp/LmwJkVcLpC.elf
File size:	4139976 bytes
MD5 hash:	8943e5f8f8c280467b4472c15ae93ba9

Source: LmwJkVcLpC.elf	ReversingLabs: Detection: 50%
Source: LmwJkVcLpC.elf	Virustotal: Detection: 45%			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 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

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Warning!

Linux Analysis Report LmwJkVcLpC.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

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

DNS Queries

DNS Answers

System Behavior

Analysis Process: LmwJkVcLpC.elf PID: 5548, Parent PID: 5464

General

Chronological Activities

Linux Analysis Report
LmwJkVcLpC.elf