Loading Joe Sandbox Report ...

Edit tour

Linux Analysis Report
maucl6PmW8.elf

Overview

General Information

Sample name:maucl6PmW8.elf
renamed because original name is a hash value
Original sample name:864e9311eaa9f25ac053636578b3a01d.elf
Analysis ID:1530959
MD5:864e9311eaa9f25ac053636578b3a01d
SHA1:ebac397ddbc5c14125cd4f573b8e448d7f27d2b6
SHA256:8c89159e71b2dc12b5d8f04c052fb1e9e58876db4a3645afd965a8b80f8540ef
Tags:32armelfgafgyt
Infos:

Detection

Mirai
Score:84
Range:0 - 100
Whitelisted:false

Signatures

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
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

Joe Sandbox version:41.0.0 Charoite
Analysis ID:1530959
Start date and time:2024-10-10 18:19:09 +02:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 31s
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:maucl6PmW8.elf
renamed because original name is a hash value
Original Sample Name:864e9311eaa9f25ac053636578b3a01d.elf
Detection:MAL
Classification:mal84.troj.evad.linELF@0/0@2/0
  • VT rate limit hit for: maucl6PmW8.elf
Command:/tmp/maucl6PmW8.elf
PID:5429
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
  • system is lnxubuntu20
  • maucl6PmW8.elf (PID: 5429, Parent: 5350, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/maucl6PmW8.elf
  • cleanup
SourceRuleDescriptionAuthorStrings
5429.1.00007f238c017000.00007f238c02a000.r-x.sdmpJoeSecurity_Mirai_9Yara detected MiraiJoe Security
    5429.1.00007f238c017000.00007f238c02a000.r-x.sdmpJoeSecurity_Mirai_6Yara detected MiraiJoe Security
      5429.1.00007f238c017000.00007f238c02a000.r-x.sdmpJoeSecurity_Mirai_8Yara detected MiraiJoe Security
        5429.1.00007f238c017000.00007f238c02a000.r-x.sdmpLinux_Trojan_Gafgyt_28a2fe0cunknownunknown
        • 0x111c0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x111d4:$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
        • 0x111e8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x111fc:$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
        • 0x11210:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x11224:$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
        • 0x11238:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x1124c:$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
        • 0x11260:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x11274:$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
        • 0x11288:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x1129c:$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
        • 0x112b0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x112c4:$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
        • 0x112d8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x112ec:$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
        • 0x11300:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x11314:$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
        • 0x11328:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x1133c:$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
        • 0x11350:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        5429.1.00007f238c017000.00007f238c02a000.r-x.sdmpLinux_Trojan_Gafgyt_ea92cca8unknownunknown
        • 0x11718:$a: 53 65 6C 66 20 52 65 70 20 46 75 63 6B 69 6E 67 20 4E 65 54 69 53 20 61 6E 64
        Click to see the 6 entries
        No Suricata rule has matched

        Click to jump to signature section

        Show All Signature Results

        AV Detection

        barindex
        Source: maucl6PmW8.elfReversingLabs: Detection: 34%
        Source: global trafficDNS traffic detected: DNS query: daisy.ubuntu.com
        Source: maucl6PmW8.elf, 5429.1.00007f238c017000.00007f238c02a000.r-x.sdmpString found in binary or memory: http://185.196.10.215/bins/mips;
        Source: maucl6PmW8.elf, 5429.1.00007f238c017000.00007f238c02a000.r-x.sdmpString found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
        Source: maucl6PmW8.elf, 5429.1.00007f238c017000.00007f238c02a000.r-x.sdmpString found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/
        Source: maucl6PmW8.elfString found in binary or memory: http://upx.sf.net

        System Summary

        barindex
        Source: 5429.1.00007f238c017000.00007f238c02a000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
        Source: 5429.1.00007f238c017000.00007f238c02a000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
        Source: 5429.1.00007f238c017000.00007f238c02a000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Mirai_0bce98a2 Author: unknown
        Source: 5429.1.00007f238c017000.00007f238c02a000.r-x.sdmp, type: MEMORYMatched rule: Detects Mirai Botnet Malware Author: Florian Roth
        Source: Process Memory Space: maucl6PmW8.elf PID: 5429, type: MEMORYSTRMatched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
        Source: Process Memory Space: maucl6PmW8.elf PID: 5429, type: MEMORYSTRMatched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
        Source: LOAD without section mappingsProgram segment: 0x8000
        Source: 5429.1.00007f238c017000.00007f238c02a000.r-x.sdmp, type: MEMORYMatched 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: 5429.1.00007f238c017000.00007f238c02a000.r-x.sdmp, type: MEMORYMatched 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: 5429.1.00007f238c017000.00007f238c02a000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Mirai_0bce98a2 reference_sample = 1b20df8df7f84ad29d81ccbe276f49a6488c2214077b13da858656c027531c80, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 993d0d2e24152d0fb72cc5d5add395bed26671c3935f73386341398b91cb0e6e, id = 0bce98a2-113e-41e1-95c9-9e1852b26142, last_modified = 2021-09-16
        Source: 5429.1.00007f238c017000.00007f238c02a000.r-x.sdmp, type: MEMORYMatched rule: Mirai_Botnet_Malware date = 2016-10-04, hash5 = 420bf9215dfb04e5008c5e522eee9946599e2b323b17f17919cd802ebb012175, hash4 = 2efa09c124f277be2199bee58f49fc0ce6c64c0bef30079dfb3d94a6de492a69, hash3 = 20683ff7a5fec1237fc09224af40be029b9548c62c693844624089af568c89d4, hash2 = 05c78c3052b390435e53a87e3d31e9fb17f7c76bb4df2814313bca24735ce81c, hash1 = 05c78c3052b390435e53a87e3d31e9fb17f7c76bb4df2814313bca24735ce81c, author = Florian Roth, description = Detects Mirai Botnet Malware, hash10 = c61bf95146c68bfbbe01d7695337ed0e93ea759f59f651799f07eecdb339f83f, hash11 = d9573c3850e2ae35f371dff977fc3e5282a5e67db8e3274fd7818e8273fd5c89, hash12 = f1100c84abff05e0501e77781160d9815628e7fd2de9e53f5454dbcac7c84ca5, hash9 = bf0471b37dba7939524a30d7d5afc8fcfb8d4a7c9954343196737e72ea4e2dc4, hash8 = 89570ae59462e6472b6769545a999bde8457e47ae0d385caaa3499ab735b8147, hash7 = 70bb0ec35dd9afcfd52ec4e1d920e7045dc51dca0573cd4c753987c9d79405c0, hash6 = 62cdc8b7fffbaf5683a466f6503c03e68a15413a90f6afd5a13ba027631460c6, reference = Internal Research, license = https://creativecommons.org/licenses/by-nc/4.0/, hash13 = fb713ccf839362bf0fbe01aedd6796f4d74521b133011b408e42c1fd9ab8246b
        Source: Process Memory Space: maucl6PmW8.elf PID: 5429, type: MEMORYSTRMatched 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: maucl6PmW8.elf PID: 5429, type: MEMORYSTRMatched 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 engineClassification label: mal84.troj.evad.linELF@0/0@2/0

        Data Obfuscation

        barindex
        Source: initial sampleString containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
        Source: initial sampleString containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
        Source: initial sampleString containing UPX found: $Id: UPX 3.94 Copyright (C) 1996-2017 the UPX Team. All Rights Reserved. $
        Source: maucl6PmW8.elfSubmission file: segment LOAD with 7.9563 entropy (max. 8.0)
        Source: /tmp/maucl6PmW8.elf (PID: 5429)Queries kernel information via 'uname': Jump to behavior
        Source: maucl6PmW8.elf, 5429.1.00007ffdd3213000.00007ffdd3234000.rw-.sdmpBinary or memory string: fx86_64/usr/bin/qemu-arm/tmp/maucl6PmW8.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/maucl6PmW8.elf
        Source: maucl6PmW8.elf, 5429.1.000055cdda2b9000.000055cdda4a7000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/arm
        Source: maucl6PmW8.elf, 5429.1.000055cdda2b9000.000055cdda4a7000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
        Source: maucl6PmW8.elf, 5429.1.00007ffdd3213000.00007ffdd3234000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
        Source: maucl6PmW8.elf, 5429.1.00007ffdd3213000.00007ffdd3234000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

        Stealing of Sensitive Information

        barindex
        Source: Yara matchFile source: 5429.1.00007f238c017000.00007f238c02a000.r-x.sdmp, type: MEMORY
        Source: Yara matchFile source: Process Memory Space: maucl6PmW8.elf PID: 5429, type: MEMORYSTR

        Remote Access Functionality

        barindex
        Source: Yara matchFile source: 5429.1.00007f238c017000.00007f238c02a000.r-x.sdmp, type: MEMORY
        Source: Yara matchFile source: Process Memory Space: maucl6PmW8.elf PID: 5429, type: MEMORYSTR
        ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
        Gather Victim Identity InformationAcquire InfrastructureValid AccountsWindows Management InstrumentationPath InterceptionPath Interception11
        Obfuscated Files or Information
        OS Credential Dumping11
        Security Software Discovery
        Remote ServicesData from Local System1
        Non-Application Layer Protocol
        Exfiltration Over Other Network MediumAbuse Accessibility Features
        CredentialsDomainsDefault AccountsScheduled Task/JobBoot or Logon Initialization ScriptsBoot or Logon Initialization ScriptsRootkitLSASS MemoryApplication Window DiscoveryRemote Desktop ProtocolData from Removable Media1
        Application Layer Protocol
        Exfiltration Over BluetoothNetwork Denial of Service
        No configs have been found
        Hide Legend

        Legend:

        • Process
        • Signature
        • Created File
        • DNS/IP Info
        • Is Dropped
        • Number of created Files
        • Is malicious
        • Internet
        SourceDetectionScannerLabelLink
        maucl6PmW8.elf34%ReversingLabsLinux.Trojan.Mirai
        No Antivirus matches
        No Antivirus matches
        SourceDetectionScannerLabelLink
        http://upx.sf.net0%URL Reputationsafe
        http://schemas.xmlsoap.org/soap/encoding/0%URL Reputationsafe
        http://schemas.xmlsoap.org/soap/envelope/0%URL Reputationsafe
        NameIPActiveMaliciousAntivirus DetectionReputation
        daisy.ubuntu.com
        162.213.35.25
        truefalse
          unknown
          NameSourceMaliciousAntivirus DetectionReputation
          http://upx.sf.netmaucl6PmW8.elftrue
          • URL Reputation: safe
          unknown
          http://185.196.10.215/bins/mips;maucl6PmW8.elf, 5429.1.00007f238c017000.00007f238c02a000.r-x.sdmpfalse
            unknown
            http://schemas.xmlsoap.org/soap/encoding/maucl6PmW8.elf, 5429.1.00007f238c017000.00007f238c02a000.r-x.sdmpfalse
            • URL Reputation: safe
            unknown
            http://schemas.xmlsoap.org/soap/envelope/maucl6PmW8.elf, 5429.1.00007f238c017000.00007f238c02a000.r-x.sdmpfalse
            • URL Reputation: safe
            unknown
            No contacted IP infos
            No context
            MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
            daisy.ubuntu.comna.elfGet hashmaliciousUnknownBrowse
            • 162.213.35.24
            na.elfGet hashmaliciousMiraiBrowse
            • 162.213.35.25
            na.elfGet hashmaliciousMiraiBrowse
            • 162.213.35.25
            na.elfGet hashmaliciousMiraiBrowse
            • 162.213.35.25
            na.elfGet hashmaliciousMiraiBrowse
            • 162.213.35.25
            na.elfGet hashmaliciousMiraiBrowse
            • 162.213.35.25
            na.elfGet hashmaliciousUnknownBrowse
            • 162.213.35.24
            na.elfGet hashmaliciousUnknownBrowse
            • 162.213.35.24
            na.elfGet hashmaliciousUnknownBrowse
            • 162.213.35.25
            na.elfGet hashmaliciousUnknownBrowse
            • 162.213.35.25
            No context
            No context
            No context
            No created / dropped files found
            File type:ELF 32-bit LSB executable, ARM, EABI4 version 1 (GNU/Linux), statically linked, no section header
            Entropy (8bit):7.953719069713227
            TrID:
            • ELF Executable and Linkable format (generic) (4004/1) 100.00%
            File name:maucl6PmW8.elf
            File size:32'328 bytes
            MD5:864e9311eaa9f25ac053636578b3a01d
            SHA1:ebac397ddbc5c14125cd4f573b8e448d7f27d2b6
            SHA256:8c89159e71b2dc12b5d8f04c052fb1e9e58876db4a3645afd965a8b80f8540ef
            SHA512:6c112afbeeb07e57320c5704d4499fab080d7980481f8fe691ec4e628b33c2b7e201ea1a8a113f95541aba6ac3c76a62fdbe3bff35f8758c228edc99842d5e90
            SSDEEP:768:I8ALXWWgtdFntEngj6c44EpLoyyouUzFvr7Sb5Uq9q3UELdd:I8ALXWXHVtH6cnEpkyyQz9MALL
            TLSH:9CE2E104E5729DEACB1076329E61D561742F0F9EB4FE305A6283C35819F84533AEE491
            File Content Preview:.ELF..............(.....8...4...........4. ...(.....................%}..%}...............O..........................Q.td............................>. NUPX!.........,...,......S..........?.E.h;....#..$..1)....0.....K.....E...%.FFk.r...T.BPr;.......~...\..

            ELF header

            Class:ELF32
            Data:2's complement, little endian
            Version:1 (current)
            Machine:ARM
            Version Number:0x1
            Type:EXEC (Executable file)
            OS/ABI:UNIX - Linux
            ABI Version:0
            Entry Point Address:0xeb38
            Flags:0x4000002
            ELF Header Size:52
            Program Header Offset:52
            Program Header Size:32
            Number of Program Headers:3
            Section Header Offset:0
            Section Header Size:40
            Number of Section Headers:0
            Header String Table Index:0
            TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
            LOAD0x00x80000x80000x7d250x7d257.95630x5R E0x8000
            LOAD0x4f800x2cf800x2cf800x00x00.00000x6RW 0x8000
            GNU_STACK0x00x00x00x00x00.00000x7RWE0x4
            TimestampSource PortDest PortSource IPDest IP
            Oct 10, 2024 18:20:00.962708950 CEST3673053192.168.2.138.8.8.8
            Oct 10, 2024 18:20:00.962785959 CEST4462553192.168.2.138.8.8.8
            Oct 10, 2024 18:20:00.969264984 CEST53446258.8.8.8192.168.2.13
            Oct 10, 2024 18:20:00.969307899 CEST53367308.8.8.8192.168.2.13
            TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
            Oct 10, 2024 18:20:00.962708950 CEST192.168.2.138.8.8.80x9b79Standard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
            Oct 10, 2024 18:20:00.962785959 CEST192.168.2.138.8.8.80xbb9eStandard query (0)daisy.ubuntu.com28IN (0x0001)false
            TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
            Oct 10, 2024 18:20:00.969307899 CEST8.8.8.8192.168.2.130x9b79No error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false
            Oct 10, 2024 18:20:00.969307899 CEST8.8.8.8192.168.2.130x9b79No error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false

            System Behavior

            Start time (UTC):16:19:58
            Start date (UTC):10/10/2024
            Path:/tmp/maucl6PmW8.elf
            Arguments:/tmp/maucl6PmW8.elf
            File size:4956856 bytes
            MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1