Linux Analysis Report
boatnet.x86.elf

Overview

General Information

Sample name: boatnet.x86.elf
Analysis ID: 1544118
MD5: 47b44e4da8b57c8cef8ddf6330356cd9
SHA1: 1f3c100e042e83de48a2e62bd55e547e600ba851
SHA256: 77d8d50e55d355387a524dc73d42dc52ecdf9a4f9f23b7f1eff6753658100beb
Tags: elfuser-abuse_ch
Infos:

Detection

Mirai
Score: 72
Range: 0 - 100
Whitelisted: false

Signatures

Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Machine Learning detection for sample
Sample is packed with UPX
ELF contains segments with high entropy indicating compressed/encrypted content
Sample contains only a LOAD segment without any section mappings
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
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
barindex
Multi AV Scanner detection for submitted file
Source: boatnet.x86.elf ReversingLabs: Detection: 57%
Machine Learning detection for sample
Source: boatnet.x86.elf Joe Sandbox ML: detected
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Source: global traffic TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global traffic TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global traffic TCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: boatnet.x86.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 42836 -> 443

System Summary
barindex
Malicious sample detected (through community Yara rule)
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_fa3ad9d0 Author: unknown
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_b14f4c5d Author: unknown
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_93fc3657 Author: unknown
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_804f8e7c Author: unknown
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_99d78950 Author: unknown
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_a68e498c Author: unknown
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_88de437f Author: unknown
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_ae9d0fa6 Author: unknown
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Sample contains only a LOAD segment without any section mappings
Source: LOAD without section mappings Program segment: 0xc01000
Yara signature match
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_fa3ad9d0 reference_sample = 8dc745a6de6f319cd6021c3e147597315cc1be02099d78fc8aae94de0e1e4bc6, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = fe93a3552b72b107f95cc5a7e59da64fe84d31df833bf36c81d8f31d8d79d7ca, id = fa3ad9d0-7c55-4621-90fc-6b154c44a67b, last_modified = 2021-09-16
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_b14f4c5d os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = a70d052918dd2fbc66db241da6438015130f0fb6929229bfe573546fe98da817, id = b14f4c5d-054f-46e6-9fa8-3588f1ef68b7, last_modified = 2021-09-16
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_93fc3657 reference_sample = 8dc745a6de6f319cd6021c3e147597315cc1be02099d78fc8aae94de0e1e4bc6, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = d01a9e85a01fad913ca048b60bda1e5a2762f534e5308132c1d3098ac3f561ee, id = 93fc3657-fd21-4e93-a728-c084fc0a6a4a, last_modified = 2021-09-16
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_804f8e7c reference_sample = 8dc745a6de6f319cd6021c3e147597315cc1be02099d78fc8aae94de0e1e4bc6, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 1080d8502848d532a0b38861437485d98a41d945acaf3cb676a7a2a2f6793ac6, id = 804f8e7c-4786-42bc-92e4-c68c24ca530e, last_modified = 2021-09-16
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_99d78950 reference_sample = 8dc745a6de6f319cd6021c3e147597315cc1be02099d78fc8aae94de0e1e4bc6, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 3008edc4e7a099b64139a77d15ec0e2c3c1b55fc23ab156304571c4d14bc654c, id = 99d78950-ea23-4166-a85a-7a029209f5b1, last_modified = 2021-09-16
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_a68e498c reference_sample = 8dc745a6de6f319cd6021c3e147597315cc1be02099d78fc8aae94de0e1e4bc6, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 951c9dfcba531e5112c872395f6c144c4bc8b71c666d2c7d9d8574a23c163883, id = a68e498c-0768-4321-ab65-42dd6ef85323, last_modified = 2021-09-16
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_88de437f reference_sample = 8dc745a6de6f319cd6021c3e147597315cc1be02099d78fc8aae94de0e1e4bc6, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = c19eb595c2b444a809bef8500c20342c9f46694d3018e268833f9b884133a1ea, id = 88de437f-9c98-4e1d-96c0-7b433c99886a, last_modified = 2021-09-16
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_ae9d0fa6 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = ca2bf2771844bec95563800d19a35dd230413f8eff0bd44c8ab0b4c596f81bfc, id = ae9d0fa6-be06-4656-9b13-8edfc0ee9e71, last_modified = 2021-09-16
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_389ee3e9 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 59f2359dc1f41d385d639d157b4cd9fc73d76d8abb7cc09d47632bb4c9a39e6e, id = 389ee3e9-70c1-4c93-a999-292cf6ff1652, last_modified = 2022-01-26
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_cc93863b reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f3ecd30f0b511a8e92cfa642409d559e7612c3f57a1659ca46c77aca809a00ac, id = cc93863b-1050-40ba-9d02-5ec9ce6a3a28, last_modified = 2022-01-26
Source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_8aa7b5d3 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 02a2c18c362df4b1fceb33f3b605586514ba9a00c7afedf71c04fa54d8146444, id = 8aa7b5d3-e1eb-4b55-b36a-0d3a242c06e9, last_modified = 2022-01-26
Source: classification engine Classification label: mal72.troj.evad.linELF@0/0@0/0

Data Obfuscation
barindex
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. $
ELF contains segments with high entropy indicating compressed/encrypted content
Source: boatnet.x86.elf Submission file: segment LOAD with 7.8752 entropy (max. 8.0)

Stealing of Sensitive Information
barindex
Yara detected Mirai
Source: Yara match File source: 6221.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORY

Remote Access Functionality
barindex
Yara detected Mirai
Source: Yara match File source: 6221.1.0000000008048000.0000000008057000.r-x.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
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