Loading Joe Sandbox Report ...

Edit tour

Linux Analysis Report
na.elf

Overview

General Information

Sample name:na.elf
Analysis ID:1530544
MD5:6d240ca6da67df3e38a890a22042b42f
SHA1:859922e8031edeb5d0c2a92680e25e9d5f808c55
SHA256:433886cc5d33aa98a01fca38962cc0667e8b92c2f3474dcb53f8ad146f1a324f
Tags:elfuser-abuse_ch
Infos:

Detection

Score:60
Range:0 - 100
Whitelisted:false

Signatures

Multi AV Scanner detection for submitted file
Connects to many ports of the same IP (likely port scanning)
Deletes system log files
Sample tries to access files in /etc/config/ (typical for OpenWRT routers)
Creates hidden files and/or directories
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:1530544
Start date and time:2024-10-10 09:46:41 +02:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 5m 7s
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:mal60.troj.evad.linELF@0/0@2/0
  • VT rate limit hit for: na.elf
Command:/tmp/na.elf
PID:5547
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: 5547, Parent: 5466, MD5: ae65271c943d3451b7f026d1fadccea6) Arguments: /tmp/na.elf
    • na.elf New Fork (PID: 5549, Parent: 5547)
    • na.elf New Fork (PID: 5550, Parent: 5547)
    • na.elf New Fork (PID: 5553, Parent: 5547)
  • cleanup
No yara matches
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: na.elfReversingLabs: Detection: 23%
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 trafficTCP traffic: 192.168.2.15:45010 -> 154.90.62.142:15987
Source: /tmp/na.elf (PID: 5547)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: unknownUDP traffic detected without corresponding DNS query: 116.203.104.203
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: mal60.troj.evad.linELF@0/0@2/0

Data Obfuscation

barindex
Source: /tmp/na.elf (PID: 5550)File: /etc/configJump to behavior
Source: /tmp/na.elf (PID: 5550)Directory: /root/.cacheJump to behavior
Source: /tmp/na.elf (PID: 5550)Directory: /root/.sshJump to behavior
Source: /tmp/na.elf (PID: 5550)Directory: /root/.configJump to behavior
Source: /tmp/na.elf (PID: 5550)Directory: /root/.localJump to behavior
Source: /tmp/na.elf (PID: 5550)Directory: /tmp/.X11-unixJump to behavior
Source: /tmp/na.elf (PID: 5550)Directory: /tmp/.Test-unixJump to behavior
Source: /tmp/na.elf (PID: 5550)Directory: /tmp/.font-unixJump to behavior
Source: /tmp/na.elf (PID: 5550)Directory: /tmp/.ICE-unixJump to behavior
Source: /tmp/na.elf (PID: 5550)Directory: /tmp/.XIM-unixJump to behavior
Source: /tmp/na.elf (PID: 5550)Directory: /etc/.javaJump to behavior

Hooking and other Techniques for Hiding and Protection

barindex
Source: /tmp/na.elf (PID: 5550)Log files deleted: /var/log/kern.logJump to behavior
Source: /tmp/na.elf (PID: 5547)Queries kernel information via 'uname': Jump to behavior
Source: na.elf, 5547.1.0000555aeebcd000.0000555aeec7d000.rw-.sdmpBinary or memory string: !/etc/qemu-binfmt/ppc1
Source: na.elf, 5547.1.00007ffec7b32000.00007ffec7b53000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-ppc/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
Source: na.elf, 5547.1.0000555aeebcd000.0000555aeec7d000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/ppc
Source: na.elf, 5547.1.00007ffec7b32000.00007ffec7b53000.rw-.sdmpBinary or memory string: /usr/bin/qemu-ppc
ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
Gather Victim Identity Information1
Scripting
Valid AccountsWindows Management Instrumentation1
Scripting
Path Interception1
Hidden Files and Directories
OS 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 Scripts1
Indicator Removal
LSASS 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.elf24%ReversingLabsLinux.Backdoor.Mirai
No Antivirus matches
No Antivirus matches
No Antivirus matches
NameIPActiveMaliciousAntivirus DetectionReputation
daisy.ubuntu.com
162.213.35.25
truefalse
    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
    116.203.104.203
    unknownGermany
    24940HETZNER-ASDEfalse
    MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
    154.90.62.142na.elfGet hashmaliciousUnknownBrowse
      na.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
                        116.203.104.203na.elfGet hashmaliciousUnknownBrowse
                          ssk7Ah3h5D.elfGet hashmaliciousUnknownBrowse
                            na.elfGet hashmaliciousUnknownBrowse
                              na.elfGet hashmaliciousUnknownBrowse
                                na.elfGet hashmaliciousUnknownBrowse
                                  na.elfGet hashmaliciousUnknownBrowse
                                    GAP5uekzm4.elfGet hashmaliciousUnknownBrowse
                                      MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
                                      daisy.ubuntu.comna.elfGet hashmaliciousUnknownBrowse
                                      • 162.213.35.24
                                      na.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
                                      MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
                                      HETZNER-ASDEna.elfGet hashmaliciousMiraiBrowse
                                      • 88.198.80.142
                                      na.elfGet hashmaliciousMiraiBrowse
                                      • 144.76.188.198
                                      na.elfGet hashmaliciousUnknownBrowse
                                      • 116.203.104.203
                                      XAhzDHAVZ2.exeGet hashmaliciousRHADAMANTHYSBrowse
                                      • 135.181.4.162
                                      https://event.stibee.com/v2/click/NDA4MDIvMjQzOTA2MS80OTAyMzcv/aHR0cHM6Ly9uLm5ld3MubmF2ZXIuY29tL21uZXdzL2FydGljbGUvMDI1LzAwMDMzOTE2NDc_c2lkPTEwMQGet hashmaliciousUnknownBrowse
                                      • 116.202.167.155
                                      https://zpr.io/DuMYPyJ79qyMGet hashmaliciousPhisherBrowse
                                      • 95.217.153.23
                                      ROQ_972923.exeGet hashmaliciousFormBookBrowse
                                      • 195.201.82.185
                                      zoHnNvuTkk.dllGet hashmaliciousBumbleBeeBrowse
                                      • 188.40.187.138
                                      https://imago-technologies.com/Get hashmaliciousUnknownBrowse
                                      • 195.201.56.136
                                      vsYkceYJOX.exeGet hashmaliciousLummaC, Amadey, Cryptbot, LummaC Stealer, RedLine, Stealc, VidarBrowse
                                      • 176.9.8.206
                                      CNSERVERSUSna.elfGet hashmaliciousUnknownBrowse
                                      • 154.90.62.142
                                      na.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
                                      No context
                                      No context
                                      No created / dropped files found
                                      File type:ELF 32-bit MSB executable, PowerPC or cisco 4500, version 1 (SYSV), statically linked, stripped
                                      Entropy (8bit):6.04576075239579
                                      TrID:
                                      • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                                      File name:na.elf
                                      File size:50'452 bytes
                                      MD5:6d240ca6da67df3e38a890a22042b42f
                                      SHA1:859922e8031edeb5d0c2a92680e25e9d5f808c55
                                      SHA256:433886cc5d33aa98a01fca38962cc0667e8b92c2f3474dcb53f8ad146f1a324f
                                      SHA512:b10eea3250fda2a60c5b3f84d14c34fdd42ab8c0cb50a97c89b84fcd33fb806e4802d17433c8f97084acf426ba8a4e7271f612052461ff0ca1719ce10a403e35
                                      SSDEEP:768:QpgxAKOGat7Do+mLjLh0+gE9r4qHNO+y/nDPa13zVqokQg36IsBFr:0DwLZgE9kqtO+i235qdQ06tp
                                      TLSH:82331A42B71C0543C1726EB4263B17D0D3EBAAD222E4F388761F978A81B4D376546EDE
                                      File Content Preview:.ELF...........................4...4.....4. ...(..........................................................EX........dt.Q.............................!..|......$H...H..!...$8!. |...N.. .!..|.......?..........|..../...@..\?........+../...A..$8...})......N..

                                      ELF header

                                      Class:ELF32
                                      Data:2's complement, big endian
                                      Version:1 (current)
                                      Machine:PowerPC
                                      Version Number:0x1
                                      Type:EXEC (Executable file)
                                      OS/ABI:UNIX - System V
                                      ABI Version:0
                                      Entry Point Address:0x100001f0
                                      Flags:0x0
                                      ELF Header Size:52
                                      Program Header Offset:52
                                      Program Header Size:32
                                      Number of Program Headers:3
                                      Section Header Offset:49972
                                      Section Header Size:40
                                      Number of Section Headers:12
                                      Header String Table Index:11
                                      NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
                                      NULL0x00x00x00x00x0000
                                      .initPROGBITS0x100000940x940x240x00x6AX004
                                      .textPROGBITS0x100000b80xb80xb2780x00x6AX004
                                      .finiPROGBITS0x1000b3300xb3300x200x00x6AX004
                                      .rodataPROGBITS0x1000b3500xb3500xa480x00x2A004
                                      .ctorsPROGBITS0x1001c0000xc0000x80x00x3WA004
                                      .dtorsPROGBITS0x1001c0080xc0080x80x00x3WA004
                                      .dataPROGBITS0x1001c0180xc0180x2b40x00x3WA008
                                      .sdataPROGBITS0x1001c2cc0xc2cc0x1c0x00x3WA004
                                      .sbssNOBITS0x1001c2e80xc2e80x940x00x3WA004
                                      .bssNOBITS0x1001c37c0xc2e80x41dc0x00x3WA004
                                      .shstrtabSTRTAB0x00xc2e80x4b0x00x0001
                                      TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
                                      LOAD0x00x100000000x100000000xbd980xbd986.13340x5R E0x10000.init .text .fini .rodata
                                      LOAD0xc0000x1001c0000x1001c0000x2e80x45583.78810x6RW 0x10000.ctors .dtors .data .sdata .sbss .bss
                                      GNU_STACK0x00x00x00x00x00.00000x6RW 0x4
                                      TimestampSource PortDest PortSource IPDest IP
                                      Oct 10, 2024 09:47:36.185729027 CEST4501015987192.168.2.15154.90.62.142
                                      Oct 10, 2024 09:47:36.190745115 CEST1598745010154.90.62.142192.168.2.15
                                      Oct 10, 2024 09:47:36.190821886 CEST4501015987192.168.2.15154.90.62.142
                                      Oct 10, 2024 09:47:36.191015959 CEST4501015987192.168.2.15154.90.62.142
                                      Oct 10, 2024 09:47:36.195862055 CEST1598745010154.90.62.142192.168.2.15
                                      Oct 10, 2024 09:47:45.057245970 CEST1598745010154.90.62.142192.168.2.15
                                      Oct 10, 2024 09:47:45.057528019 CEST4501015987192.168.2.15154.90.62.142
                                      Oct 10, 2024 09:48:00.072463036 CEST4501015987192.168.2.15154.90.62.142
                                      Oct 10, 2024 09:48:00.077621937 CEST1598745010154.90.62.142192.168.2.15
                                      Oct 10, 2024 09:48:47.234011889 CEST1598745010154.90.62.142192.168.2.15
                                      Oct 10, 2024 09:48:47.234153032 CEST4501015987192.168.2.15154.90.62.142
                                      Oct 10, 2024 09:49:19.085808039 CEST1598745010154.90.62.142192.168.2.15
                                      Oct 10, 2024 09:49:19.085891962 CEST4501015987192.168.2.15154.90.62.142
                                      Oct 10, 2024 09:49:34.100791931 CEST4501015987192.168.2.15154.90.62.142
                                      Oct 10, 2024 09:49:34.105964899 CEST1598745010154.90.62.142192.168.2.15
                                      Oct 10, 2024 09:50:09.259927034 CEST1598745010154.90.62.142192.168.2.15
                                      Oct 10, 2024 09:50:09.260051012 CEST4501015987192.168.2.15154.90.62.142
                                      Oct 10, 2024 09:50:56.121722937 CEST1598745010154.90.62.142192.168.2.15
                                      Oct 10, 2024 09:50:56.121834040 CEST4501015987192.168.2.15154.90.62.142
                                      TimestampSource PortDest PortSource IPDest IP
                                      Oct 10, 2024 09:47:35.629847050 CEST432335353192.168.2.15116.203.104.203
                                      Oct 10, 2024 09:47:36.184530973 CEST535343233116.203.104.203192.168.2.15
                                      Oct 10, 2024 09:50:19.444103956 CEST4243053192.168.2.158.8.8.8
                                      Oct 10, 2024 09:50:19.444176912 CEST4031153192.168.2.158.8.8.8
                                      Oct 10, 2024 09:50:20.229363918 CEST53424308.8.8.8192.168.2.15
                                      Oct 10, 2024 09:50:20.229383945 CEST53403118.8.8.8192.168.2.15
                                      TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
                                      Oct 10, 2024 09:50:19.444103956 CEST192.168.2.158.8.8.80xd935Standard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
                                      Oct 10, 2024 09:50:19.444176912 CEST192.168.2.158.8.8.80xda1Standard query (0)daisy.ubuntu.com28IN (0x0001)false
                                      TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
                                      Oct 10, 2024 09:50:20.229363918 CEST8.8.8.8192.168.2.150xd935No error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false
                                      Oct 10, 2024 09:50:20.229363918 CEST8.8.8.8192.168.2.150xd935No error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false

                                      System Behavior

                                      Start time (UTC):07:47:33
                                      Start date (UTC):10/10/2024
                                      Path:/tmp/na.elf
                                      Arguments:/tmp/na.elf
                                      File size:5388968 bytes
                                      MD5 hash:ae65271c943d3451b7f026d1fadccea6

                                      Start time (UTC):07:47:34
                                      Start date (UTC):10/10/2024
                                      Path:/tmp/na.elf
                                      Arguments:-
                                      File size:5388968 bytes
                                      MD5 hash:ae65271c943d3451b7f026d1fadccea6

                                      Start time (UTC):07:47:34
                                      Start date (UTC):10/10/2024
                                      Path:/tmp/na.elf
                                      Arguments:-
                                      File size:5388968 bytes
                                      MD5 hash:ae65271c943d3451b7f026d1fadccea6

                                      Start time (UTC):07:47:34
                                      Start date (UTC):10/10/2024
                                      Path:/tmp/na.elf
                                      Arguments:-
                                      File size:5388968 bytes
                                      MD5 hash:ae65271c943d3451b7f026d1fadccea6