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Linux Analysis Report
i486.elf

Overview

General Information

Sample name:i486.elf
Analysis ID:1581948
MD5:aaeaa43db5e890cf6468819a8d07cb32
SHA1:1c57feeb84a212ebb7e2f7d08901265ee3ca3adc
SHA256:f37c040b41103311de4aac31c376827db2d648581fe87556642712df17059352
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 deletes itself
Detected TCP or UDP traffic on non-standard ports
Sample has stripped symbol table
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:1581948
Start date and time:2024-12-29 13:55:51 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 10s
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:i486.elf
Detection:MAL
Classification:mal80.troj.evad.linELF@0/0@0/0
Command:/tmp/i486.elf
PID:5433
Exit Code:0
Exit Code Info:
Killed:False
Standard Output:
listening tun0
Standard Error:
  • system is lnxubuntu20
  • i486.elf (PID: 5433, Parent: 5356, MD5: aaeaa43db5e890cf6468819a8d07cb32) Arguments: /tmp/i486.elf
    • i486.elf New Fork (PID: 5434, Parent: 5433)
  • 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
i486.elfJoeSecurity_Mirai_9Yara detected MiraiJoe Security
    i486.elfLinux_Trojan_Gafgyt_ea92cca8unknownunknown
    • 0xcb40:$a: 53 65 6C 66 20 52 65 70 20 46 75 63 6B 69 6E 67 20 4E 65 54 69 53 20 61 6E 64
    i486.elfLinux_Trojan_Mirai_122ff2e6unknownunknown
    • 0x8e87:$a: 24 EB 15 89 F0 83 C8 01 EB 03 8B 5B 08 3B 43 04 72 F8 8B 4B 0C 89
    i486.elfLinux_Trojan_Mirai_fa48b592unknownunknown
    • 0xc315:$a: 31 C0 BA 01 00 00 00 B9 01 00 00 00 03 04 24 89 D7 31 D2 F7 F7 0F
    • 0xc343:$a: 31 C0 BA 01 00 00 00 B9 01 00 00 00 03 04 24 89 D7 31 D2 F7 F7 0F
    i486.elfLinux_Trojan_Mirai_6e8e9257unknownunknown
    • 0x22f2:$a: 53 83 EC 04 8B 5C 24 18 8B 7C 24 20 8A 44 24 14 8A 54 24 1C 88 54
    • 0x2362:$a: 53 83 EC 04 8B 5C 24 18 8B 7C 24 20 8A 44 24 14 8A 54 24 1C 88 54
    Click to see the 1 entries
    SourceRuleDescriptionAuthorStrings
    5433.1.0000000008048000.0000000008056000.r-x.sdmpJoeSecurity_Mirai_9Yara detected MiraiJoe Security
      5433.1.0000000008048000.0000000008056000.r-x.sdmpLinux_Trojan_Gafgyt_ea92cca8unknownunknown
      • 0xcb40:$a: 53 65 6C 66 20 52 65 70 20 46 75 63 6B 69 6E 67 20 4E 65 54 69 53 20 61 6E 64
      5433.1.0000000008048000.0000000008056000.r-x.sdmpLinux_Trojan_Mirai_122ff2e6unknownunknown
      • 0x8e87:$a: 24 EB 15 89 F0 83 C8 01 EB 03 8B 5B 08 3B 43 04 72 F8 8B 4B 0C 89
      5433.1.0000000008048000.0000000008056000.r-x.sdmpLinux_Trojan_Mirai_fa48b592unknownunknown
      • 0xc315:$a: 31 C0 BA 01 00 00 00 B9 01 00 00 00 03 04 24 89 D7 31 D2 F7 F7 0F
      • 0xc343:$a: 31 C0 BA 01 00 00 00 B9 01 00 00 00 03 04 24 89 D7 31 D2 F7 F7 0F
      5433.1.0000000008048000.0000000008056000.r-x.sdmpLinux_Trojan_Mirai_6e8e9257unknownunknown
      • 0x22f2:$a: 53 83 EC 04 8B 5C 24 18 8B 7C 24 20 8A 44 24 14 8A 54 24 1C 88 54
      • 0x2362:$a: 53 83 EC 04 8B 5C 24 18 8B 7C 24 20 8A 44 24 14 8A 54 24 1C 88 54
      Click to see the 1 entries
      No Suricata rule has matched

      Click to jump to signature section

      Show All Signature Results

      AV Detection

      barindex
      Source: i486.elfAvira: detected
      Source: i486.elfReversingLabs: Detection: 57%
      Source: i486.elfJoe Sandbox ML: detected
      Source: global trafficTCP traffic: 192.168.2.13:42732 -> 185.196.10.127:8888

      System Summary

      barindex
      Source: i486.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
      Source: i486.elf, type: SAMPLEMatched rule: Linux_Trojan_Mirai_122ff2e6 Author: unknown
      Source: i486.elf, type: SAMPLEMatched rule: Linux_Trojan_Mirai_fa48b592 Author: unknown
      Source: i486.elf, type: SAMPLEMatched rule: Linux_Trojan_Mirai_6e8e9257 Author: unknown
      Source: i486.elf, type: SAMPLEMatched rule: Detects Mirai Botnet Malware Author: Florian Roth
      Source: 5433.1.0000000008048000.0000000008056000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
      Source: 5433.1.0000000008048000.0000000008056000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Mirai_122ff2e6 Author: unknown
      Source: 5433.1.0000000008048000.0000000008056000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Mirai_fa48b592 Author: unknown
      Source: 5433.1.0000000008048000.0000000008056000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Mirai_6e8e9257 Author: unknown
      Source: 5433.1.0000000008048000.0000000008056000.r-x.sdmp, type: MEMORYMatched rule: Detects Mirai Botnet Malware Author: Florian Roth
      Source: ELF static info symbol of initial sample.symtab present: no
      Source: i486.elf, type: SAMPLEMatched 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: i486.elf, type: SAMPLEMatched rule: Linux_Trojan_Mirai_122ff2e6 reference_sample = c7dd999a033fa3edc1936785b87cd69ce2f5cac5a084ddfaf527a1094e718bc4, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 3c9ffd7537e30a21eefa6c174f801264b92a85a1bc73e34e6dc9e29f84658348, id = 122ff2e6-56e6-4aa8-a3ec-c19d31eb1f80, last_modified = 2021-09-16
      Source: i486.elf, type: SAMPLEMatched rule: Linux_Trojan_Mirai_fa48b592 reference_sample = c9e33befeec133720b3ba40bb3cd7f636aad80f72f324c5fe65ac7af271c49ee, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 8838d2752b310dbf7d12f6cf023244aaff4fdf5b55cf1e3b71843210df0fcf88, id = fa48b592-8d80-45af-a3e4-232695b8f5dd, last_modified = 2021-09-16
      Source: i486.elf, type: SAMPLEMatched rule: Linux_Trojan_Mirai_6e8e9257 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 4bad14aebb0b8c7aa414f38866baaf1f4b350b2026735de24bcf2014ff4b0a6a, id = 6e8e9257-a6d5-407a-a584-4656816a3ddc, last_modified = 2021-09-16
      Source: i486.elf, type: SAMPLEMatched 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: 5433.1.0000000008048000.0000000008056000.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: 5433.1.0000000008048000.0000000008056000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Mirai_122ff2e6 reference_sample = c7dd999a033fa3edc1936785b87cd69ce2f5cac5a084ddfaf527a1094e718bc4, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 3c9ffd7537e30a21eefa6c174f801264b92a85a1bc73e34e6dc9e29f84658348, id = 122ff2e6-56e6-4aa8-a3ec-c19d31eb1f80, last_modified = 2021-09-16
      Source: 5433.1.0000000008048000.0000000008056000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Mirai_fa48b592 reference_sample = c9e33befeec133720b3ba40bb3cd7f636aad80f72f324c5fe65ac7af271c49ee, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 8838d2752b310dbf7d12f6cf023244aaff4fdf5b55cf1e3b71843210df0fcf88, id = fa48b592-8d80-45af-a3e4-232695b8f5dd, last_modified = 2021-09-16
      Source: 5433.1.0000000008048000.0000000008056000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Mirai_6e8e9257 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 4bad14aebb0b8c7aa414f38866baaf1f4b350b2026735de24bcf2014ff4b0a6a, id = 6e8e9257-a6d5-407a-a584-4656816a3ddc, last_modified = 2021-09-16
      Source: 5433.1.0000000008048000.0000000008056000.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: classification engineClassification label: mal80.troj.evad.linELF@0/0@0/0

      Hooking and other Techniques for Hiding and Protection

      barindex
      Source: /tmp/i486.elf (PID: 5433)File: /tmp/i486.elfJump to behavior
      Source: /tmp/i486.elf (PID: 5434)Queries kernel information via 'uname': Jump to behavior

      Stealing of Sensitive Information

      barindex
      Source: Yara matchFile source: i486.elf, type: SAMPLE
      Source: Yara matchFile source: 5433.1.0000000008048000.0000000008056000.r-x.sdmp, type: MEMORY

      Remote Access Functionality

      barindex
      Source: Yara matchFile source: i486.elf, type: SAMPLE
      Source: Yara matchFile source: 5433.1.0000000008048000.0000000008056000.r-x.sdmp, type: MEMORY
      ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
      Gather Victim Identity InformationAcquire InfrastructureValid AccountsWindows Management InstrumentationPath InterceptionPath Interception1
      File Deletion
      OS Credential Dumping1
      Security Software Discovery
      Remote ServicesData from Local System1
      Non-Standard Port
      Exfiltration 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
      SourceDetectionScannerLabelLink
      i486.elf58%ReversingLabsLinux.Backdoor.Mirai
      i486.elf100%AviraEXP/ELF.Gafgyt.Z.F
      i486.elf100%Joe Sandbox ML
      No Antivirus matches
      No Antivirus matches
      No Antivirus matches
      No contacted domains info
      • No. of IPs < 25%
      • 25% < No. of IPs < 50%
      • 50% < No. of IPs < 75%
      • 75% < No. of IPs
      IPDomainCountryFlagASNASN NameMalicious
      185.196.10.127
      unknownSwitzerland
      42624SIMPLECARRIERCHfalse
      No context
      No context
      MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
      SIMPLECARRIERCHvc8Kx5C54G.exeGet hashmaliciousSocks5SystemzBrowse
      • 185.196.9.67
      zmap.mpsl.elfGet hashmaliciousMirai, OkiruBrowse
      • 185.196.11.47
      zmap.ppc.elfGet hashmaliciousMirai, OkiruBrowse
      • 185.196.11.47
      zmap.mips.elfGet hashmaliciousMirai, OkiruBrowse
      • 185.196.11.47
      zmap.x86.elfGet hashmaliciousOkiruBrowse
      • 185.196.11.47
      zmap.arm7.elfGet hashmaliciousMirai, OkiruBrowse
      • 185.196.11.47
      debug.dbg.elfGet hashmaliciousMirai, OkiruBrowse
      • 185.196.11.47
      zmap.m68k.elfGet hashmaliciousMirai, OkiruBrowse
      • 185.196.11.47
      zmap.arm.elfGet hashmaliciousMirai, OkiruBrowse
      • 185.196.11.47
      zmap.sh4.elfGet hashmaliciousMirai, OkiruBrowse
      • 185.196.11.47
      No context
      No context
      No created / dropped files found
      File type:ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), statically linked, stripped
      Entropy (8bit):6.3099077039281815
      TrID:
      • ELF Executable and Linkable format (Linux) (4029/14) 50.16%
      • ELF Executable and Linkable format (generic) (4004/1) 49.84%
      File name:i486.elf
      File size:60'164 bytes
      MD5:aaeaa43db5e890cf6468819a8d07cb32
      SHA1:1c57feeb84a212ebb7e2f7d08901265ee3ca3adc
      SHA256:f37c040b41103311de4aac31c376827db2d648581fe87556642712df17059352
      SHA512:a7eda3ab11fd12910490375e7d25eac3a43c19ac3cfa082546494243aeb6074734e0be1a3bb258abebb826bfa66db7f9e37b686aa987992248bb35b5eab53cc6
      SSDEEP:768:OlpiQXCkbbzPb06rCW1Tvc0i0r+CUo8GPHMrUbdK0d/l+L1ZLEIFMK42pWg/5Ep4:aSkb/zjtNcMCCUo8GfMEd/ApZLEIFxH
      TLSH:5F436CC4A653EAF0DD1605B430A7F73B6672E47B320BD597E7E8BA1778C3660880619C
      File Content Preview:.ELF........................4...$.......4. ...(..............................................`...`.......;..............L...Le..Le..................Q.td............................U..S............x........[]...$.............U......=.h...t..D..............

      ELF header

      Class:ELF32
      Data:2's complement, little endian
      Version:1 (current)
      Machine:Intel 80386
      Version Number:0x1
      Type:EXEC (Executable file)
      OS/ABI:UNIX - System V
      ABI Version:0
      Entry Point Address:0x8048194
      Flags:0x0
      ELF Header Size:52
      Program Header Offset:52
      Program Header Size:32
      Number of Program Headers:4
      Section Header Offset:59684
      Section Header Size:40
      Number of Section Headers:12
      Header String Table Index:11
      NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
      NULL0x00x00x00x00x0000
      .initPROGBITS0x80480b40xb40x1c0x00x6AX001
      .textPROGBITS0x80480d00xd00xc7440x00x6AX0016
      .finiPROGBITS0x80548140xc8140x170x00x6AX001
      .rodataPROGBITS0x805482c0xc82c0xee40x00x2A004
      .eh_framePROGBITS0x80560000xe0000x54c0x00x3WA004
      .tbssNOBITS0x805654c0xe54c0x80x00x403WAT004
      .ctorsPROGBITS0x805654c0xe54c0x80x00x3WA004
      .dtorsPROGBITS0x80565540xe5540x80x00x3WA004
      .dataPROGBITS0x80565800xe5800x3540x00x3WA0032
      .bssNOBITS0x80568e00xe8d40x33100x00x3WA0032
      .shstrtabSTRTAB0x00xe8d40x4e0x00x0001
      TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
      LOAD0x00x80480000x80480000xd7100xd7106.50360x5R E0x1000.init .text .fini .rodata
      LOAD0xe0000x80560000x80560000x8d40x3bf04.58450x6RW 0x1000.eh_frame .tbss .ctors .dtors .data .bss
      TLS0xe54c0x805654c0x805654c0x00x80.00000x4R 0x4.tbss
      GNU_STACK0x00x00x00x00x00.00000x6RW 0x4
      TimestampSource PortDest PortSource IPDest IP
      Dec 29, 2024 13:56:28.711366892 CET427328888192.168.2.13185.196.10.127
      Dec 29, 2024 13:56:28.832411051 CET888842732185.196.10.127192.168.2.13
      Dec 29, 2024 13:56:28.832545996 CET427328888192.168.2.13185.196.10.127
      Dec 29, 2024 13:56:28.833053112 CET427328888192.168.2.13185.196.10.127
      Dec 29, 2024 13:56:28.953917027 CET888842732185.196.10.127192.168.2.13
      Dec 29, 2024 13:56:38.843296051 CET427328888192.168.2.13185.196.10.127
      Dec 29, 2024 13:56:38.964370966 CET888842732185.196.10.127192.168.2.13
      Dec 29, 2024 13:56:39.283015966 CET888842732185.196.10.127192.168.2.13
      Dec 29, 2024 13:56:39.283195972 CET427328888192.168.2.13185.196.10.127
      Dec 29, 2024 13:57:39.338182926 CET427328888192.168.2.13185.196.10.127
      Dec 29, 2024 13:57:39.459146976 CET888842732185.196.10.127192.168.2.13
      Dec 29, 2024 13:57:39.778019905 CET888842732185.196.10.127192.168.2.13
      Dec 29, 2024 13:57:39.778181076 CET427328888192.168.2.13185.196.10.127

      System Behavior

      Start time (UTC):12:56:27
      Start date (UTC):29/12/2024
      Path:/tmp/i486.elf
      Arguments:/tmp/i486.elf
      File size:60164 bytes
      MD5 hash:aaeaa43db5e890cf6468819a8d07cb32

      Start time (UTC):12:56:27
      Start date (UTC):29/12/2024
      Path:/tmp/i486.elf
      Arguments:-
      File size:60164 bytes
      MD5 hash:aaeaa43db5e890cf6468819a8d07cb32