Linux Analysis Report
na.elf

Overview

General Information

Sample name: na.elf
Analysis ID: 1530535
MD5: b52905c74086995374806a81644d565b
SHA1: d5fad3c006800ec04fa4356669361f78ec47f4c0
SHA256: 9d43751257f997c03d1a95c2c1f15a788345ee3d87fd6c565e5f911172b44a70
Tags: elfuser-abuse_ch
Infos:

Detection

Mirai
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
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
Yara signature match

Classification

AV Detection
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Antivirus / Scanner detection for submitted sample
Source: na.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: na.elf ReversingLabs: Detection: 63%
Source: na.elf Virustotal: Detection: 44% Perma Link
Machine Learning detection for sample
Source: na.elf Joe Sandbox ML: detected
Source: global traffic DNS traffic detected: DNS query: daisy.ubuntu.com
Source: na.elf String found in binary or memory: http://upx.sf.net

System Summary
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Malicious sample detected (through community Yara rule)
Source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_268aac0b Author: unknown
Source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_0cb1699c Author: unknown
Source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_70ef58f1 Author: unknown
Source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_3a85a418 Author: unknown
Source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_485c4b13 Author: unknown
Source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_7d05725e Author: unknown
Source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_2e3f67a9 Author: unknown
Source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_0d73971c Author: unknown
Source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_88de437f Author: unknown
Source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Sample contains only a LOAD segment without any section mappings
Source: LOAD without section mappings Program segment: 0xc01000
Yara signature match
Source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_268aac0b reference_sample = 49c94d184d7e387c3efe34ae6f021e011c3046ae631c9733ab0a230d5fe28ead, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 9c581721bf82af7dc6482a2c41af5fb3404e01c82545c7b2b29230f707014781, id = 268aac0b-c5c7-4035-8381-4e182de91e32, last_modified = 2021-09-16
Source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_0cb1699c reference_sample = fc8741f67f39e7409ab2c6c62d4f9acdd168d3e53cf6976dd87501833771cacb, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 6e44c68bba8c9fb53ac85080b9ad765579f027cabfea5055a0bb3a85b8671089, id = 0cb1699c-9a08-4885-aa7f-0f1ee2543cac, last_modified = 2021-09-16
Source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_70ef58f1 reference_sample = fc8741f67f39e7409ab2c6c62d4f9acdd168d3e53cf6976dd87501833771cacb, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = c46eac9185e5f396456004d1e0c42b54a9318e0450f797c55703122cfb8fea89, id = 70ef58f1-ac74-4e33-ae03-e68d1d5a4379, last_modified = 2021-09-16
Source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_3a85a418 reference_sample = 86a43b39b157f47ab12e9dc1013b4eec0e1792092d4cef2772a21a9bf4fc518a, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 554aff5770bfe8fdeae94f5f5a0fd7f7786340a95633433d8e686af1c25b8cec, id = 3a85a418-2bd9-445a-86cb-657ca7edf566, last_modified = 2021-09-16
Source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_485c4b13 reference_sample = 49c94d184d7e387c3efe34ae6f021e011c3046ae631c9733ab0a230d5fe28ead, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 28f3e8982cee2836a59721c88ee0a9159ad6fdfc27c0091927f5286f3a731e9a, id = 485c4b13-3c7c-47a7-b926-8237cb759ad7, last_modified = 2021-09-16
Source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_7d05725e reference_sample = fc8741f67f39e7409ab2c6c62d4f9acdd168d3e53cf6976dd87501833771cacb, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 7fcd34cb7c37836a1fa8eb9375a80da01bda0e98c568422255d83c840acc0714, id = 7d05725e-db59-42a7-99aa-99de79728126, last_modified = 2021-09-16
Source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_2e3f67a9 reference_sample = fc8741f67f39e7409ab2c6c62d4f9acdd168d3e53cf6976dd87501833771cacb, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 6a06815f3d2e5f1a7a67f4264953dbb2e9d14e5f3486b178da845eab5b922d4f, id = 2e3f67a9-6fd5-4457-a626-3a9015bdb401, last_modified = 2021-09-16
Source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_0d73971c reference_sample = 49c94d184d7e387c3efe34ae6f021e011c3046ae631c9733ab0a230d5fe28ead, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 95279bc45936ca867efb30040354c8ff81de31dccda051cfd40b4fb268c228c5, id = 0d73971c-4253-4e7d-b1e1-20b031197f9e, last_modified = 2021-09-16
Source: 5821.1.0000000008048000.0000000008059000.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: 5821.1.0000000008048000.0000000008059000.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: classification engine Classification label: mal80.troj.evad.linELF@0/0@2/0

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. $
ELF contains segments with high entropy indicating compressed/encrypted content
Source: na.elf Submission file: segment LOAD with 7.8928 entropy (max. 8.0)

Stealing of Sensitive Information
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Yara detected Mirai
Source: Yara match File source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY

Remote Access Functionality
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Yara detected Mirai
Source: Yara match File source: 5821.1.0000000008048000.0000000008059000.r-x.sdmp, type: MEMORY
windows-stand
⊘No contacted IP infos

Contacted Domains

Name IP Active
daisy.ubuntu.com 162.213.35.25 true