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Linux Analysis Report
na.elf

Overview

General Information

Sample name:na.elf
Analysis ID:1530543
MD5:2bc8fdb30c561d2fa0d96e5a4d14b0bb
SHA1:6fc0ec8fa3b9b468130f5224db086febbb16e6aa
SHA256:b48d3560388a23014805ad5f2518b5c965a902441255693234d4d70526f8084b
Tags:elfuser-abuse_ch
Infos:

Detection

Score:64
Range:0 - 100
Whitelisted:false

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Connects to many ports of the same IP (likely port scanning)
Sends malformed DNS queries
Detected TCP or UDP traffic on non-standard ports
Found strings indicative of a multi-platform dropper
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:1530543
Start date and time:2024-10-10 09:45:03 +02:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 58s
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:na.elf
Detection:MAL
Classification:mal64.troj.linELF@0/0@4/0
Command:/tmp/na.elf
PID:5509
Exit Code:0
Exit Code Info:
Killed:False
Standard Output:
thIs wEek on xLaB lEarNs nOthinG xd
Standard Error:
  • system is lnxubuntu20
  • na.elf (PID: 5509, Parent: 5434, MD5: 0083f1f0e77be34ad27f849842bbb00c) Arguments: /tmp/na.elf
    • na.elf New Fork (PID: 5511, Parent: 5509)
    • na.elf New Fork (PID: 5513, Parent: 5509)
  • cleanup
No yara matches
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: na.elfAvira: detected
Source: na.elfReversingLabs: Detection: 31%
Source: na.elfVirustotal: Detection: 29%Perma Link
Source: na.elfString: ash|login|wget|curl|tftp|ntpdate
Source: na.elfString: /proc//exe|ash|login|wget|curl|tftp|ntpdate/fdsocket|proc/usr/bin/usr/sbin/system/mnt/mtd/app/org/z/zbin/home/app/dvr/bin/duksan/userfs/mnt/app/usr/etc/dvr/main/usr/local/var/bin/tmp/sqfs/z/bin/dvr/mnt/mtd/zconf/gm/bin/home/process/var/challenge/usr/lib/lib/systemd//usr/lib/systemd/system/system/bin//mnt//home/helper/home/davinci/usr/libexec//sbin//bin/

Networking

barindex
Source: global trafficTCP traffic: 154.90.62.142 ports 1,5,7,8,9,15987
Source: global trafficDNS traffic detected: malformed DNS query: subcarrace.indy. [malformed]
Source: global trafficDNS traffic detected: malformed DNS query: 75cents.libre. [malformed]
Source: global trafficTCP traffic: 192.168.2.14:52878 -> 154.90.62.142:15987
Source: /tmp/na.elf (PID: 5509)Socket: 127.0.0.1:1234Jump to behavior
Source: unknownTCP traffic detected without corresponding DNS query: 154.90.62.142
Source: unknownTCP traffic detected without corresponding DNS query: 154.90.62.142
Source: unknownTCP traffic detected without corresponding DNS query: 154.90.62.142
Source: unknownTCP traffic detected without corresponding DNS query: 154.90.62.142
Source: unknownTCP traffic detected without corresponding DNS query: 154.90.62.142
Source: unknownTCP traffic detected without corresponding DNS query: 154.90.62.142
Source: unknownTCP traffic detected without corresponding DNS query: 154.90.62.142
Source: unknownTCP traffic detected without corresponding DNS query: 154.90.62.142
Source: unknownTCP traffic detected without corresponding DNS query: 154.90.62.142
Source: unknownTCP traffic detected without corresponding DNS query: 154.90.62.142
Source: unknownTCP traffic detected without corresponding DNS query: 154.90.62.142
Source: unknownTCP traffic detected without corresponding DNS query: 154.90.62.142
Source: unknownUDP traffic detected without corresponding DNS query: 54.36.111.116
Source: unknownUDP traffic detected without corresponding DNS query: 116.203.104.203
Source: unknownUDP traffic detected without corresponding DNS query: 116.203.104.203
Source: unknownUDP traffic detected without corresponding DNS query: 54.36.111.116
Source: unknownUDP traffic detected without corresponding DNS query: 116.203.104.203
Source: global trafficDNS traffic detected: DNS query: subcarrace.indy. [malformed]
Source: global trafficDNS traffic detected: DNS query: 75cents.libre. [malformed]
Source: global trafficDNS traffic detected: DNS query: daisy.ubuntu.com
Source: ELF static info symbol of initial sample.symtab present: no
Source: classification engineClassification label: mal64.troj.linELF@0/0@4/0
Source: /tmp/na.elf (PID: 5509)Queries kernel information via 'uname': Jump to behavior
Source: na.elf, 5509.1.00005647c8f00000.00005647c8fa8000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/mips
Source: na.elf, 5509.1.00005647c8f00000.00005647c8fa8000.rw-.sdmpBinary or memory string: GV!/etc/qemu-binfmt/mips
Source: na.elf, 5509.1.00007ffd45bdb000.00007ffd45bfc000.rw-.sdmpBinary or memory string: /usr/bin/qemu-mips
Source: na.elf, 5509.1.00007ffd45bdb000.00007ffd45bfc000.rw-.sdmpBinary or memory string: hx86_64/usr/bin/qemu-mips/tmp/na.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/na.elf
ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
Gather Victim Identity Information1
Scripting
Valid AccountsWindows Management Instrumentation1
Scripting
Path InterceptionDirect Volume AccessOS Credential Dumping11
Security Software Discovery
Remote ServicesData from Local System1
Non-Standard Port
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
Non-Application Layer Protocol
Exfiltration Over BluetoothNetwork Denial of Service
Email AddressesDNS ServerDomain AccountsAtLogon Script (Windows)Logon Script (Windows)Obfuscated Files or InformationSecurity Account ManagerQuery RegistrySMB/Windows Admin SharesData from Network Shared Drive1
Application Layer Protocol
Automated ExfiltrationData Encrypted for Impact
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
na.elf32%ReversingLabsLinux.Backdoor.Gafgyt
na.elf30%VirustotalBrowse
na.elf100%AviraEXP/ELF.Agent.J.8
No Antivirus matches
SourceDetectionScannerLabelLink
daisy.ubuntu.com0%VirustotalBrowse
No Antivirus matches
NameIPActiveMaliciousAntivirus DetectionReputation
daisy.ubuntu.com
162.213.35.24
truefalseunknown
75cents.libre. [malformed]
unknown
unknowntrue
    unknown
    subcarrace.indy. [malformed]
    unknown
    unknowntrue
      unknown
      • No. of IPs < 25%
      • 25% < No. of IPs < 50%
      • 50% < No. of IPs < 75%
      • 75% < No. of IPs
      IPDomainCountryFlagASNASN NameMalicious
      154.90.62.142
      unknownSeychelles
      40065CNSERVERSUStrue
      MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
      154.90.62.142na.elfGet hashmaliciousUnknownBrowse
        na.elfGet hashmaliciousUnknownBrowse
          NLHiAJgSnj.elfGet hashmaliciousUnknownBrowse
            na.elfGet hashmaliciousUnknownBrowse
              na.elfGet hashmaliciousUnknownBrowse
                na.elfGet hashmaliciousUnknownBrowse
                  na.elfGet hashmaliciousUnknownBrowse
                    na.elfGet hashmaliciousUnknownBrowse
                      na.elfGet hashmaliciousUnknownBrowse
                        na.elfGet hashmaliciousUnknownBrowse
                          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
                          • 162.213.35.24
                          na.elfGet hashmaliciousMiraiBrowse
                          • 162.213.35.25
                          na.elfGet hashmaliciousMiraiBrowse
                          • 162.213.35.25
                          na.elfGet hashmaliciousMiraiBrowse
                          • 162.213.35.24
                          na.elfGet hashmaliciousMiraiBrowse
                          • 162.213.35.24
                          na.elfGet hashmaliciousMiraiBrowse
                          • 162.213.35.25
                          na.elfGet hashmaliciousUnknownBrowse
                          • 162.213.35.24
                          na.elfGet hashmaliciousUnknownBrowse
                          • 162.213.35.25
                          MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
                          CNSERVERSUSna.elfGet hashmaliciousUnknownBrowse
                          • 154.90.62.142
                          na.elfGet hashmaliciousUnknownBrowse
                          • 154.90.62.142
                          9b7dlGj5Gq.exeGet hashmaliciousFormBookBrowse
                          • 198.16.50.171
                          lPX6PixV4t.exeGet hashmaliciousFormBookBrowse
                          • 23.224.37.78
                          na.elfGet hashmaliciousMiraiBrowse
                          • 23.224.58.152
                          NLHiAJgSnj.elfGet hashmaliciousUnknownBrowse
                          • 154.90.62.142
                          fJD7ivEnzm.exeGet hashmaliciousFormBookBrowse
                          • 43.242.202.169
                          Z6s208B9QX.exeGet hashmaliciousFormBookBrowse
                          • 23.224.37.76
                          5FRWRDOqk7.exeGet hashmaliciousFormBookBrowse
                          • 43.242.202.169
                          jpdy1E8K4A.exeGet hashmaliciousFormBookBrowse
                          • 43.242.202.169
                          No context
                          No context
                          No created / dropped files found
                          File type:ELF 32-bit MSB executable, MIPS, MIPS-I version 1 (SYSV), statically linked, stripped
                          Entropy (8bit):5.3556619357709385
                          TrID:
                          • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                          File name:na.elf
                          File size:68'344 bytes
                          MD5:2bc8fdb30c561d2fa0d96e5a4d14b0bb
                          SHA1:6fc0ec8fa3b9b468130f5224db086febbb16e6aa
                          SHA256:b48d3560388a23014805ad5f2518b5c965a902441255693234d4d70526f8084b
                          SHA512:d08c6833eab5af484121ff1c9bf1c45e607701e29eba74a5bbb76241a5b5dafbfade8d427d10954efbbf9bc2585df7c6f6c2c2c1cb78fe0586c958de8329bc8f
                          SSDEEP:768:BphYhwiqpvgrCSScSUXnZ8XKpf9Sd5N/NVQxtzJH0+HEc+8Yobue4mfphLBdJudd:FYTAgkYXnZ8HVWWlOfpudl2oN5/
                          TLSH:D563A65E6E218FEDF76DC73447B34F22935833D626E1D680D25CD6001EA028EA55FBA8
                          File Content Preview:.ELF.....................@.`...4.........4. ...(.............@...@...........................E...E........K.........dt.Q............................<...'......!'.......................<...'......!... ....'9... ......................<...'......!........'9.

                          ELF header

                          Class:ELF32
                          Data:2's complement, big endian
                          Version:1 (current)
                          Machine:MIPS R3000
                          Version Number:0x1
                          Type:EXEC (Executable file)
                          OS/ABI:UNIX - System V
                          ABI Version:0
                          Entry Point Address:0x400260
                          Flags:0x1007
                          ELF Header Size:52
                          Program Header Offset:52
                          Program Header Size:32
                          Number of Program Headers:3
                          Section Header Offset:67824
                          Section Header Size:40
                          Number of Section Headers:13
                          Header String Table Index:12
                          NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
                          NULL0x00x00x00x00x0000
                          .initPROGBITS0x4000940x940x8c0x00x6AX004
                          .textPROGBITS0x4001200x1200xf5000x00x6AX0016
                          .finiPROGBITS0x40f6200xf6200x5c0x00x6AX004
                          .rodataPROGBITS0x40f6800xf6800x9600x00x2A0016
                          .ctorsPROGBITS0x4500000x100000x80x00x3WA004
                          .dtorsPROGBITS0x4500080x100080x80x00x3WA004
                          .data.rel.roPROGBITS0x4500140x100140x5c0x00x3WA004
                          .dataPROGBITS0x4500700x100700x3400x00x3WA0016
                          .gotPROGBITS0x4503b00x103b00x4e80x40x10000003WAp0016
                          .sbssNOBITS0x4508980x108980x3c0x00x10000003WAp004
                          .bssNOBITS0x4508e00x108980x42c80x00x3WA0016
                          .shstrtabSTRTAB0x00x108980x560x00x0001
                          TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
                          LOAD0x00x4000000x4000000xffe00xffe05.37800x5R E0x10000.init .text .fini .rodata
                          LOAD0x100000x4500000x4500000x8980x4ba83.97550x6RW 0x10000.ctors .dtors .data.rel.ro .data .got .sbss .bss
                          GNU_STACK0x00x00x00x00x00.00000x7RWE0x4
                          TimestampSource PortDest PortSource IPDest IP
                          Oct 10, 2024 09:45:55.654864073 CEST5287815987192.168.2.14154.90.62.142
                          Oct 10, 2024 09:45:55.659821033 CEST1598752878154.90.62.142192.168.2.14
                          Oct 10, 2024 09:45:55.659933090 CEST5287815987192.168.2.14154.90.62.142
                          Oct 10, 2024 09:45:55.660204887 CEST5287815987192.168.2.14154.90.62.142
                          Oct 10, 2024 09:45:55.665982962 CEST1598752878154.90.62.142192.168.2.14
                          Oct 10, 2024 09:46:10.674896955 CEST5287815987192.168.2.14154.90.62.142
                          Oct 10, 2024 09:46:10.679851055 CEST1598752878154.90.62.142192.168.2.14
                          Oct 10, 2024 09:46:17.850629091 CEST1598752878154.90.62.142192.168.2.14
                          Oct 10, 2024 09:46:17.850683928 CEST1598752878154.90.62.142192.168.2.14
                          Oct 10, 2024 09:46:17.850725889 CEST5287815987192.168.2.14154.90.62.142
                          Oct 10, 2024 09:46:17.850725889 CEST5287815987192.168.2.14154.90.62.142
                          Oct 10, 2024 09:46:17.851032972 CEST1598752878154.90.62.142192.168.2.14
                          Oct 10, 2024 09:46:17.851073027 CEST5287815987192.168.2.14154.90.62.142
                          Oct 10, 2024 09:47:04.207470894 CEST1598752878154.90.62.142192.168.2.14
                          Oct 10, 2024 09:47:04.207640886 CEST5287815987192.168.2.14154.90.62.142
                          Oct 10, 2024 09:47:45.072278023 CEST1598752878154.90.62.142192.168.2.14
                          Oct 10, 2024 09:47:45.072542906 CEST5287815987192.168.2.14154.90.62.142
                          Oct 10, 2024 09:48:00.087399960 CEST5287815987192.168.2.14154.90.62.142
                          Oct 10, 2024 09:48:00.092439890 CEST1598752878154.90.62.142192.168.2.14
                          Oct 10, 2024 09:48:47.250982046 CEST1598752878154.90.62.142192.168.2.14
                          Oct 10, 2024 09:48:47.251156092 CEST5287815987192.168.2.14154.90.62.142
                          Oct 10, 2024 09:49:19.102682114 CEST1598752878154.90.62.142192.168.2.14
                          Oct 10, 2024 09:49:19.102844954 CEST5287815987192.168.2.14154.90.62.142
                          TimestampSource PortDest PortSource IPDest IP
                          Oct 10, 2024 09:45:49.491909981 CEST349175353192.168.2.1454.36.111.116
                          Oct 10, 2024 09:45:54.515613079 CEST4391353192.168.2.14116.203.104.203
                          Oct 10, 2024 09:45:54.525455952 CEST5343913116.203.104.203192.168.2.14
                          Oct 10, 2024 09:45:54.547477007 CEST354255353192.168.2.14116.203.104.203
                          Oct 10, 2024 09:45:55.084712982 CEST535335425116.203.104.203192.168.2.14
                          Oct 10, 2024 09:45:55.086055040 CEST4363453192.168.2.1454.36.111.116
                          Oct 10, 2024 09:45:55.093882084 CEST577295353192.168.2.14116.203.104.203
                          Oct 10, 2024 09:45:55.653695107 CEST535357729116.203.104.203192.168.2.14
                          Oct 10, 2024 09:48:31.773365021 CEST4464153192.168.2.148.8.8.8
                          Oct 10, 2024 09:48:31.773410082 CEST5673053192.168.2.148.8.8.8
                          Oct 10, 2024 09:48:31.779808998 CEST53567308.8.8.8192.168.2.14
                          Oct 10, 2024 09:48:31.779941082 CEST53446418.8.8.8192.168.2.14
                          TimestampSource IPDest IPChecksumCodeType
                          Oct 10, 2024 09:45:55.091443062 CEST54.36.111.116192.168.2.146585(Port unreachable)Destination Unreachable
                          TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
                          Oct 10, 2024 09:45:54.515613079 CEST192.168.2.14116.203.104.2030x2f16Standard query (0)subcarrace.indy. [malformed]256306false
                          Oct 10, 2024 09:45:55.086055040 CEST192.168.2.1454.36.111.1160xa185Standard query (0)75cents.libre. [malformed]256307false
                          Oct 10, 2024 09:48:31.773365021 CEST192.168.2.148.8.8.80xbc1eStandard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
                          Oct 10, 2024 09:48:31.773410082 CEST192.168.2.148.8.8.80xc243Standard query (0)daisy.ubuntu.com28IN (0x0001)false
                          TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
                          Oct 10, 2024 09:48:31.779941082 CEST8.8.8.8192.168.2.140xbc1eNo error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false
                          Oct 10, 2024 09:48:31.779941082 CEST8.8.8.8192.168.2.140xbc1eNo error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false

                          System Behavior

                          Start time (UTC):07:45:47
                          Start date (UTC):10/10/2024
                          Path:/tmp/na.elf
                          Arguments:/tmp/na.elf
                          File size:5777432 bytes
                          MD5 hash:0083f1f0e77be34ad27f849842bbb00c

                          Start time (UTC):07:45:48
                          Start date (UTC):10/10/2024
                          Path:/tmp/na.elf
                          Arguments:-
                          File size:5777432 bytes
                          MD5 hash:0083f1f0e77be34ad27f849842bbb00c

                          Start time (UTC):07:45:48
                          Start date (UTC):10/10/2024
                          Path:/tmp/na.elf
                          Arguments:-
                          File size:5777432 bytes
                          MD5 hash:0083f1f0e77be34ad27f849842bbb00c