Linux Analysis Report
boatnet.ppc.elf

Overview

General Information

Sample name: boatnet.ppc.elf
Analysis ID: 1592304
MD5: 33805953d249d4095bb852ee023fa76b
SHA1: ddb045214693281db335e210ee670f2498ea9bda
SHA256: c64fec58c9289ec5c9a43697188422e54111116374c0c0e52077f325910d3235
Tags: elfuser-abuse_ch
Infos:

Detection

Mirai
Score: 84
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
Sample is packed with UPX
ELF contains segments with high entropy indicating compressed/encrypted content
Executes the "rm" command used to delete files or directories
Sample contains only a LOAD segment without any section mappings
Uses the "uname" system call to query kernel version information (possible evasion)
Yara signature match

Classification

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 https://malpedia.caad.fkie.fraunhofer.de/details/elf.mirai

AV Detection
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Antivirus / Scanner detection for submitted sample
Source: boatnet.ppc.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: boatnet.ppc.elf Virustotal: Detection: 44% Perma Link
Source: boatnet.ppc.elf ReversingLabs: Detection: 44%
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 34.249.145.219
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: 91.189.91.42
Source: boatnet.ppc.elf, 6263.1.00007f35d800e000.00007f35d8015000.r-x.sdmp String found in binary or memory: http://5.181.159.16/c.sh;
Source: boatnet.ppc.elf, 6263.1.00007f35d8015000.00007f35d8018000.rwx.sdmp String found in binary or memory: http://5.181.159.16/idk/home.arm7;chmod
Source: boatnet.ppc.elf, 6263.1.00007f35d8015000.00007f35d8018000.rwx.sdmp String found in binary or memory: http://5.181.159.16/idk/home.mips
Source: boatnet.ppc.elf, 6263.1.00007f35d8015000.00007f35d8018000.rwx.sdmp String found in binary or memory: http://5.181.159.16/idk/home.mips;
Source: boatnet.ppc.elf, 6263.1.00007f35d8015000.00007f35d8018000.rwx.sdmp String found in binary or memory: http://5.181.159.16/idk/home.x86
Source: boatnet.ppc.elf, 6263.1.00007f35d800e000.00007f35d8015000.r-x.sdmp String found in binary or memory: http://5.181.159.16/w.sh;
Source: boatnet.ppc.elf, 6263.1.00007f35d800e000.00007f35d8015000.r-x.sdmp String found in binary or memory: http://5.181.159.16/wget.sh;
Source: boatnet.ppc.elf, 6263.1.00007f35d8015000.00007f35d8018000.rwx.sdmp String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: boatnet.ppc.elf, 6263.1.00007f35d8015000.00007f35d8018000.rwx.sdmp String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/
Source: boatnet.ppc.elf String found in binary or memory: http://upx.sf.net
Source: unknown Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 443 -> 39258
Source: unknown Network traffic detected: HTTP traffic on port 39258 -> 443

System Summary
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Malicious sample detected (through community Yara rule)
Source: 6263.1.00007f35d800e000.00007f35d8015000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 6263.1.00007f35d800e000.00007f35d8015000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
Source: 6263.1.00007f35d8015000.00007f35d8018000.rwx.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: boatnet.ppc.elf PID: 6263, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: boatnet.ppc.elf PID: 6263, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
Sample contains only a LOAD segment without any section mappings
Source: LOAD without section mappings Program segment: 0x100000
Yara signature match
Source: 6263.1.00007f35d800e000.00007f35d8015000.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: 6263.1.00007f35d800e000.00007f35d8015000.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: 6263.1.00007f35d8015000.00007f35d8018000.rwx.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: boatnet.ppc.elf PID: 6263, 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: boatnet.ppc.elf PID: 6263, 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: mal84.troj.evad.linELF@0/0@0/0

Data Obfuscation
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Sample is packed with UPX
Source: initial sample String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample String containing UPX found: $Id: UPX 3.94 Copyright (C) 1996-2017 the UPX Team. All Rights Reserved. $
Executes the "rm" command used to delete files or directories
Source: /usr/bin/dash (PID: 6287) Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.MDKLBM1A1Z /tmp/tmp.ux15gK8JI4 /tmp/tmp.VBIoNLqjV7 Jump to behavior
Source: /usr/bin/dash (PID: 6288) Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.MDKLBM1A1Z /tmp/tmp.ux15gK8JI4 /tmp/tmp.VBIoNLqjV7 Jump to behavior
ELF contains segments with high entropy indicating compressed/encrypted content
Source: boatnet.ppc.elf Submission file: segment LOAD with 7.952 entropy (max. 8.0)
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/boatnet.ppc.elf (PID: 6263) Queries kernel information via 'uname': Jump to behavior
Source: boatnet.ppc.elf, 6263.1.00007ffd108b5000.00007ffd108d6000.rw-.sdmp Binary or memory string: 1x86_64/usr/bin/qemu-ppc/tmp/boatnet.ppc.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/boatnet.ppc.elf
Source: boatnet.ppc.elf, 6263.1.0000561361108000.00005613611b8000.rw-.sdmp Binary or memory string: !/etc/qemu-binfmt/ppc11!hotpluggableq
Source: boatnet.ppc.elf, 6263.1.0000561361108000.00005613611b8000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/ppc
Source: boatnet.ppc.elf, 6263.1.00007ffd108b5000.00007ffd108d6000.rw-.sdmp Binary or memory string: /usr/bin/qemu-ppc
Source: boatnet.ppc.elf, 6263.1.00007ffd108b5000.00007ffd108d6000.rw-.sdmp Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

Stealing of Sensitive Information
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Yara detected Mirai
Source: Yara match File source: Process Memory Space: boatnet.ppc.elf PID: 6263, type: MEMORYSTR
Source: Yara match File source: 6263.1.00007f35d8015000.00007f35d8018000.rwx.sdmp, type: MEMORY

Remote Access Functionality
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Yara detected Mirai
Source: Yara match File source: Process Memory Space: boatnet.ppc.elf PID: 6263, type: MEMORYSTR
Source: Yara match File source: 6263.1.00007f35d8015000.00007f35d8018000.rwx.sdmp, type: MEMORY
windows-stand
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
34.249.145.219
 unknown United States
16509 AMAZON-02US false
109.202.202.202
 unknown Switzerland
13030 INIT7CH false
91.189.91.42
 unknown United Kingdom
41231 CANONICAL-ASGB false