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Linux Analysis Report
arm5.elf

Overview

General Information

Sample name:arm5.elf
Analysis ID:1527383
MD5:8df642e9214c49f41797af89f2fbd59e
SHA1:36fc5006e18b8c17adc729dfe019f1e359e5ae94
SHA256:f51f388cb8b8726bcd52e28b123812f171ace93863e25a5ad1d6084936f967e3
Tags:user-elfdigest
Infos:

Detection

Mirai
Score:64
Range:0 - 100
Whitelisted:false

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Yara detected Mirai
Enumerates processes within the "proc" file system
Sample has stripped symbol table
Sample listens on a socket
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

Joe Sandbox version:41.0.0 Charoite
Analysis ID:1527383
Start date and time:2024-10-06 23:15:21 +02:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 5m 16s
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:arm5.elf
Detection:MAL
Classification:mal64.troj.linELF@0/0@0/0
  • Skipping network analysis since amount of network traffic is too extensive
  • VT rate limit hit for: arm5.elf
Command:/tmp/arm5.elf
PID:6267
Exit Code:0
Exit Code Info:
Killed:False
Standard Output:
you are now apart of hail cock botnet
Standard Error:
  • system is lnxubuntu20
  • arm5.elf (PID: 6267, Parent: 6190, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm5.elf
    • arm5.elf New Fork (PID: 6269, Parent: 6267)
      • arm5.elf New Fork (PID: 6343, Parent: 6269)
      • arm5.elf New Fork (PID: 6345, Parent: 6269)
        • arm5.elf New Fork (PID: 6355, Parent: 6345)
    • arm5.elf New Fork (PID: 6271, Parent: 6267)
    • arm5.elf New Fork (PID: 6272, Parent: 6267)
      • arm5.elf New Fork (PID: 6302, Parent: 6272)
  • cleanup
NameDescriptionAttributionBlogpost URLsLink
MiraiMirai 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 Attributionhttps://malpedia.caad.fkie.fraunhofer.de/details/elf.mirai
SourceRuleDescriptionAuthorStrings
arm5.elfJoeSecurity_Mirai_8Yara detected MiraiJoe Security
    SourceRuleDescriptionAuthorStrings
    6345.1.00007f4c0c017000.00007f4c0c02b000.r-x.sdmpJoeSecurity_Mirai_8Yara detected MiraiJoe Security
      6267.1.00007f4c0c017000.00007f4c0c02b000.r-x.sdmpJoeSecurity_Mirai_8Yara detected MiraiJoe Security
        6269.1.00007f4c0c017000.00007f4c0c02b000.r-x.sdmpJoeSecurity_Mirai_8Yara detected MiraiJoe Security
          No Suricata rule has matched

          Click to jump to signature section

          Show All Signature Results

          AV Detection

          barindex
          Source: arm5.elfAvira: detected
          Source: arm5.elfReversingLabs: Detection: 39%
          Source: /tmp/arm5.elf (PID: 6267)Socket: 127.0.0.1:1172Jump to behavior
          Source: ELF static info symbol of initial sample.symtab present: no
          Source: classification engineClassification label: mal64.troj.linELF@0/0@0/0
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6450/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6430/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6452/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6451/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6432/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6454/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6431/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6453/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6434/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6456/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6433/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6455/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6429/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6428/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6483/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6460/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6482/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6441/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6485/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6440/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6484/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6443/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6487/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6101/cmdlineJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6442/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6486/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6423/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6445/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6444/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6481/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6480/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/1/cmdlineJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6436/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6458/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6435/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6457/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6438/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6437/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6459/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6343)File opened: /proc/6439/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6430/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6432/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6355/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6431/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6434/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6433/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6429/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6428/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6483/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6482/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6441/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6485/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6440/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6484/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6443/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6487/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6442/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6486/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6445/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6444/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6481/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6480/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/1/cmdlineJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6436/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6435/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6438/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6437/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6439/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6450/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6452/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6374/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6451/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6377/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6454/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6332/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6453/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6456/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6378/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6455/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6460/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6343/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6101/cmdlineJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6345/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6380/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6381/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6458/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6457/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6271)File opened: /proc/6459/statusJump to behavior
          Source: /tmp/arm5.elf (PID: 6267)Queries kernel information via 'uname': Jump to behavior
          Source: arm5.elf, 6267.1.00007ffc18506000.00007ffc18527000.rw-.sdmp, arm5.elf, 6269.1.00007ffc18506000.00007ffc18527000.rw-.sdmp, arm5.elf, 6345.1.00007ffc18506000.00007ffc18527000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-arm/tmp/arm5.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/arm5.elf
          Source: arm5.elf, 6267.1.000055ed79cb0000.000055ed79e26000.rw-.sdmp, arm5.elf, 6269.1.000055ed79cb0000.000055ed79e26000.rw-.sdmp, arm5.elf, 6345.1.000055ed79cb0000.000055ed79e26000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/arm
          Source: arm5.elf, 6267.1.000055ed79cb0000.000055ed79e26000.rw-.sdmp, arm5.elf, 6269.1.000055ed79cb0000.000055ed79e26000.rw-.sdmp, arm5.elf, 6345.1.000055ed79cb0000.000055ed79e26000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
          Source: arm5.elf, 6267.1.00007ffc18506000.00007ffc18527000.rw-.sdmp, arm5.elf, 6269.1.00007ffc18506000.00007ffc18527000.rw-.sdmp, arm5.elf, 6345.1.00007ffc18506000.00007ffc18527000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
          Source: arm5.elf, 6345.1.00007ffc18506000.00007ffc18527000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

          Stealing of Sensitive Information

          barindex
          Source: Yara matchFile source: arm5.elf, type: SAMPLE
          Source: Yara matchFile source: 6345.1.00007f4c0c017000.00007f4c0c02b000.r-x.sdmp, type: MEMORY
          Source: Yara matchFile source: 6267.1.00007f4c0c017000.00007f4c0c02b000.r-x.sdmp, type: MEMORY
          Source: Yara matchFile source: 6269.1.00007f4c0c017000.00007f4c0c02b000.r-x.sdmp, type: MEMORY

          Remote Access Functionality

          barindex
          Source: Yara matchFile source: arm5.elf, type: SAMPLE
          Source: Yara matchFile source: 6345.1.00007f4c0c017000.00007f4c0c02b000.r-x.sdmp, type: MEMORY
          Source: Yara matchFile source: 6267.1.00007f4c0c017000.00007f4c0c02b000.r-x.sdmp, type: MEMORY
          Source: Yara matchFile source: 6269.1.00007f4c0c017000.00007f4c0c02b000.r-x.sdmp, type: MEMORY
          ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
          Gather Victim Identity InformationAcquire InfrastructureValid AccountsWindows Management InstrumentationPath InterceptionPath InterceptionDirect Volume Access1
          OS Credential Dumping
          11
          Security Software Discovery
          Remote ServicesData from Local SystemData ObfuscationExfiltration Over Other Network MediumAbuse Accessibility Features
          No configs have been found
          Hide Legend

          Legend:

          • Process
          • Signature
          • Created File
          • DNS/IP Info
          • Is Dropped
          • Number of created Files
          • Is malicious
          • Internet
          behaviorgraph top1 signatures2 2 Behavior Graph ID: 1527383 Sample: arm5.elf Startdate: 06/10/2024 Architecture: LINUX Score: 64 24 Antivirus / Scanner detection for submitted sample 2->24 26 Multi AV Scanner detection for submitted file 2->26 28 Yara detected Mirai 2->28 8 arm5.elf 2->8         started        process3 process4 10 arm5.elf 8->10         started        12 arm5.elf 8->12         started        14 arm5.elf 8->14         started        process5 16 arm5.elf 10->16         started        18 arm5.elf 10->18         started        20 arm5.elf 12->20         started        process6 22 arm5.elf 16->22         started       
          SourceDetectionScannerLabelLink
          arm5.elf39%ReversingLabsLinux.Backdoor.Mirai
          arm5.elf100%AviraEXP/ELF.Mirai.W
          No Antivirus matches
          No Antivirus matches
          No Antivirus matches
          No contacted domains info
          No contacted IP infos
          No context
          No context
          No context
          No context
          No context
          No created / dropped files found
          File type:ELF 32-bit LSB executable, ARM, version 1 (ARM), statically linked, stripped
          Entropy (8bit):6.136762372506753
          TrID:
          • ELF Executable and Linkable format (generic) (4004/1) 100.00%
          File name:arm5.elf
          File size:80'128 bytes
          MD5:8df642e9214c49f41797af89f2fbd59e
          SHA1:36fc5006e18b8c17adc729dfe019f1e359e5ae94
          SHA256:f51f388cb8b8726bcd52e28b123812f171ace93863e25a5ad1d6084936f967e3
          SHA512:783c686034bd85f9e93d8427992b10a42bef91223ff1e7780734f68ef9a0b98e780780b7fe195034d587710d61b514a5aca09c6ac0e84a7ced6153d86d4e510e
          SSDEEP:1536:pazRQ7EEjhCg/U717Bo/pkE59Ykcta03tRiHCGSQ5lX/0iZWm:paFQ7Djhto11oxkE59PcX9RiHCOlPBWm
          TLSH:E1733A85BC815B12C6D121B7FB1F429C7B2A53A8D3EF3207D9256F10778782B0E67A45
          File Content Preview:.ELF...a..........(.........4...p7......4. ...(.....................D3..D3..............H3..H3..H3......4U..........Q.td..................................-...L."....E..........0@-.\P...0....S.0...P@...0... ....R......0...0...........0... ....R..... 0....S

          ELF header

          Class:ELF32
          Data:2's complement, little endian
          Version:1 (current)
          Machine:ARM
          Version Number:0x1
          Type:EXEC (Executable file)
          OS/ABI:ARM - ABI
          ABI Version:0
          Entry Point Address:0x8190
          Flags:0x2
          ELF Header Size:52
          Program Header Offset:52
          Program Header Size:32
          Number of Program Headers:3
          Section Header Offset:79728
          Section Header Size:40
          Number of Section Headers:10
          Header String Table Index:9
          NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
          NULL0x00x00x00x00x0000
          .initPROGBITS0x80940x940x180x00x6AX004
          .textPROGBITS0x80b00xb00x1175c0x00x6AX0016
          .finiPROGBITS0x1980c0x1180c0x140x00x6AX004
          .rodataPROGBITS0x198200x118200x1b240x00x2A004
          .ctorsPROGBITS0x233480x133480x80x00x3WA004
          .dtorsPROGBITS0x233500x133500x80x00x3WA004
          .dataPROGBITS0x2335c0x1335c0x3d40x00x3WA004
          .bssNOBITS0x237300x137300x514c0x00x3WA004
          .shstrtabSTRTAB0x00x137300x3e0x00x0001
          TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
          LOAD0x00x80000x80000x133440x133446.16260x5R E0x8000.init .text .fini .rodata
          LOAD0x133480x233480x233480x3e80x55343.40730x6RW 0x8000.ctors .dtors .data .bss
          GNU_STACK0x00x00x00x00x00.00000x7RWE0x4
          Skipped network analysis since the amount of network traffic is too extensive. Please download the PCAP and check manually.

          System Behavior

          Start time (UTC):21:16:31
          Start date (UTC):06/10/2024
          Path:/tmp/arm5.elf
          Arguments:/tmp/arm5.elf
          File size:4956856 bytes
          MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

          Start time (UTC):21:16:31
          Start date (UTC):06/10/2024
          Path:/tmp/arm5.elf
          Arguments:-
          File size:4956856 bytes
          MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

          Start time (UTC):21:16:32
          Start date (UTC):06/10/2024
          Path:/tmp/arm5.elf
          Arguments:-
          File size:4956856 bytes
          MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

          Start time (UTC):21:16:32
          Start date (UTC):06/10/2024
          Path:/tmp/arm5.elf
          Arguments:-
          File size:4956856 bytes
          MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

          Start time (UTC):21:16:32
          Start date (UTC):06/10/2024
          Path:/tmp/arm5.elf
          Arguments:-
          File size:4956856 bytes
          MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

          Start time (UTC):21:16:31
          Start date (UTC):06/10/2024
          Path:/tmp/arm5.elf
          Arguments:-
          File size:4956856 bytes
          MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

          Start time (UTC):21:16:31
          Start date (UTC):06/10/2024
          Path:/tmp/arm5.elf
          Arguments:-
          File size:4956856 bytes
          MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

          Start time (UTC):21:16:32
          Start date (UTC):06/10/2024
          Path:/tmp/arm5.elf
          Arguments:-
          File size:4956856 bytes
          MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1