Edit tour

Linux Analysis Report
bot.arm.elf

Overview

General Information

Sample name:bot.arm.elf
Analysis ID:1644148
MD5:7b7cafab82f1cbd31501f4b38db4c583
SHA1:0541c5d98aafb9b49dc29b6e908a0841286b0acd
SHA256:0646d6844cd7e7f9d81b84cb79fee92c24a1779ba1af5699c311c61ab9aa1c66
Tags:elfuser-abuse_ch
Infos:

Detection

Score:52
Range:0 - 100

Signatures

Multi AV Scanner detection for submitted file
Sample is packed with UPX
ELF contains segments with high entropy indicating compressed/encrypted content
Executes the "rm" command used to delete files or directories
Sample contains only a LOAD segment without any section mappings
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious
Joe Sandbox version:42.0.0 Malachite
Analysis ID:1644148
Start date and time:2025-03-20 12:04:33 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 37s
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:bot.arm.elf
Detection:MAL
Classification:mal52.evad.linELF@0/0@0/0
Command:/tmp/bot.arm.elf
PID:6218
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
  • bot.arm.elf (PID: 6218, Parent: 6133, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/bot.arm.elf
  • dash New Fork (PID: 6293, Parent: 4332)
  • rm (PID: 6293, Parent: 4332, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.orFhDPizJ2 /tmp/tmp.Dp0SRlaB22 /tmp/tmp.UvxBwPrRwu
  • dash New Fork (PID: 6294, Parent: 4332)
  • rm (PID: 6294, Parent: 4332, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.orFhDPizJ2 /tmp/tmp.Dp0SRlaB22 /tmp/tmp.UvxBwPrRwu
  • cleanup
No yara matches
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: bot.arm.elfVirustotal: Detection: 26%Perma Link
Source: bot.arm.elfReversingLabs: Detection: 36%
Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknownTCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknownTCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknownTCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknownTCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknownTCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknownTCP traffic detected without corresponding DNS query: 34.249.145.219
Source: bot.arm.elfString found in binary or memory: http://upx.sf.net
Source: unknownNetwork traffic detected: HTTP traffic on port 443 -> 39242
Source: unknownNetwork traffic detected: HTTP traffic on port 43928 -> 443
Source: unknownNetwork traffic detected: HTTP traffic on port 39242 -> 443
Source: unknownNetwork traffic detected: HTTP traffic on port 42836 -> 443
Source: LOAD without section mappingsProgram segment: 0x8000
Source: classification engineClassification label: mal52.evad.linELF@0/0@0/0

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 3.95 Copyright (C) 1996-2018 the UPX Team. All Rights Reserved. $
Source: /usr/bin/dash (PID: 6293)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.orFhDPizJ2 /tmp/tmp.Dp0SRlaB22 /tmp/tmp.UvxBwPrRwuJump to behavior
Source: /usr/bin/dash (PID: 6294)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.orFhDPizJ2 /tmp/tmp.Dp0SRlaB22 /tmp/tmp.UvxBwPrRwuJump to behavior
Source: bot.arm.elfSubmission file: segment LOAD with 7.98 entropy (max. 8.0)
Source: /tmp/bot.arm.elf (PID: 6218)Queries kernel information via 'uname': Jump to behavior
Source: bot.arm.elf, 6218.1.00007ffd313ee000.00007ffd3140f000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-arm/tmp/bot.arm.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/bot.arm.elf
Source: bot.arm.elf, 6218.1.000055d678cdc000.000055d678e0a000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/arm
Source: bot.arm.elf, 6218.1.000055d678cdc000.000055d678e0a000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: bot.arm.elf, 6218.1.00007ffd313ee000.00007ffd3140f000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
Source: bot.arm.elf, 6218.1.00007ffd313ee000.00007ffd3140f000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
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
Encrypted Channel
Exfiltration Over Other Network MediumAbuse Accessibility Features
CredentialsDomainsDefault AccountsScheduled Task/JobBoot or Logon Initialization ScriptsBoot or Logon Initialization Scripts1
File Deletion
LSASS 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
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1644148 Sample: bot.arm.elf Startdate: 20/03/2025 Architecture: LINUX Score: 52 12 109.202.202.202, 80 INIT7CH Switzerland 2->12 14 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->14 16 2 other IPs or domains 2->16 18 Multi AV Scanner detection for submitted file 2->18 20 Sample is packed with UPX 2->20 6 dash rm 2->6         started        8 dash rm 2->8         started        10 bot.arm.elf 2->10         started        signatures3 process4
SourceDetectionScannerLabelLink
bot.arm.elf27%VirustotalBrowse
bot.arm.elf36%ReversingLabsLinux.Backdoor.Mirai
No Antivirus matches
No Antivirus matches
No Antivirus matches

Download Network PCAP: filteredfull

No contacted domains info
NameSourceMaliciousAntivirus DetectionReputation
http://upx.sf.netbot.arm.elffalse
    high
    • No. of IPs < 25%
    • 25% < No. of IPs < 50%
    • 50% < No. of IPs < 75%
    • 75% < No. of IPs
    IPDomainCountryFlagASNASN NameMalicious
    34.249.145.219
    unknownUnited States
    16509AMAZON-02USfalse
    109.202.202.202
    unknownSwitzerland
    13030INIT7CHfalse
    91.189.91.43
    unknownUnited Kingdom
    41231CANONICAL-ASGBfalse
    91.189.91.42
    unknownUnited Kingdom
    41231CANONICAL-ASGBfalse
    MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
    34.249.145.219tftp.elfGet hashmaliciousUnknownBrowse
      miner.elfGet hashmaliciousUnknownBrowse
        na.elfGet hashmaliciousPrometeiBrowse
          na.elfGet hashmaliciousPrometeiBrowse
            na.elfGet hashmaliciousPrometeiBrowse
              na.elfGet hashmaliciousPrometeiBrowse
                hiss.arm5.elfGet hashmaliciousUnknownBrowse
                  boatnet.mpsl.elfGet hashmaliciousMiraiBrowse
                    boatnet.arm7.elfGet hashmaliciousMiraiBrowse
                      boatnet.ppc.elfGet hashmaliciousMiraiBrowse
                        109.202.202.202kpLwzBouH4.elfGet hashmaliciousUnknownBrowse
                        • ch.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox_92.0%2bbuild3-0ubuntu0.20.04.1_amd64.deb
                        91.189.91.43bot.arm5.elfGet hashmaliciousUnknownBrowse
                          main_ppc.elfGet hashmaliciousMiraiBrowse
                            main_arm.elfGet hashmaliciousMiraiBrowse
                              45.126.126.33-sora.spc-2025-03-12T01_48_28.elfGet hashmaliciousMiraiBrowse
                                i.elfGet hashmaliciousMiraiBrowse
                                  tftp.elfGet hashmaliciousUnknownBrowse
                                    miner.elfGet hashmaliciousUnknownBrowse
                                      miner.elfGet hashmaliciousUnknownBrowse
                                        na.elfGet hashmaliciousPrometeiBrowse
                                          na.elfGet hashmaliciousPrometeiBrowse
                                            91.189.91.42bot.arm5.elfGet hashmaliciousUnknownBrowse
                                              main_ppc.elfGet hashmaliciousMiraiBrowse
                                                main_arm.elfGet hashmaliciousMiraiBrowse
                                                  45.126.126.33-sora.spc-2025-03-12T01_48_28.elfGet hashmaliciousMiraiBrowse
                                                    i.elfGet hashmaliciousMiraiBrowse
                                                      tftp.elfGet hashmaliciousUnknownBrowse
                                                        miner.elfGet hashmaliciousUnknownBrowse
                                                          miner.elfGet hashmaliciousUnknownBrowse
                                                            na.elfGet hashmaliciousPrometeiBrowse
                                                              na.elfGet hashmaliciousPrometeiBrowse
                                                                No context
                                                                MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
                                                                CANONICAL-ASGBbot.arm6.elfGet hashmaliciousUnknownBrowse
                                                                • 185.125.190.26
                                                                bot.arm5.elfGet hashmaliciousUnknownBrowse
                                                                • 91.189.91.42
                                                                main_ppc.elfGet hashmaliciousMiraiBrowse
                                                                • 91.189.91.42
                                                                main_arm.elfGet hashmaliciousMiraiBrowse
                                                                • 91.189.91.42
                                                                45.126.126.33-sora.spc-2025-03-12T01_48_28.elfGet hashmaliciousMiraiBrowse
                                                                • 91.189.91.42
                                                                i.elfGet hashmaliciousMiraiBrowse
                                                                • 91.189.91.42
                                                                tftp.elfGet hashmaliciousUnknownBrowse
                                                                • 91.189.91.42
                                                                miner.elfGet hashmaliciousUnknownBrowse
                                                                • 91.189.91.42
                                                                miner.elfGet hashmaliciousUnknownBrowse
                                                                • 91.189.91.42
                                                                na.elfGet hashmaliciousPrometeiBrowse
                                                                • 91.189.91.42
                                                                CANONICAL-ASGBbot.arm6.elfGet hashmaliciousUnknownBrowse
                                                                • 185.125.190.26
                                                                bot.arm5.elfGet hashmaliciousUnknownBrowse
                                                                • 91.189.91.42
                                                                main_ppc.elfGet hashmaliciousMiraiBrowse
                                                                • 91.189.91.42
                                                                main_arm.elfGet hashmaliciousMiraiBrowse
                                                                • 91.189.91.42
                                                                45.126.126.33-sora.spc-2025-03-12T01_48_28.elfGet hashmaliciousMiraiBrowse
                                                                • 91.189.91.42
                                                                i.elfGet hashmaliciousMiraiBrowse
                                                                • 91.189.91.42
                                                                tftp.elfGet hashmaliciousUnknownBrowse
                                                                • 91.189.91.42
                                                                miner.elfGet hashmaliciousUnknownBrowse
                                                                • 91.189.91.42
                                                                miner.elfGet hashmaliciousUnknownBrowse
                                                                • 91.189.91.42
                                                                na.elfGet hashmaliciousPrometeiBrowse
                                                                • 91.189.91.42
                                                                INIT7CHbot.arm5.elfGet hashmaliciousUnknownBrowse
                                                                • 109.202.202.202
                                                                main_ppc.elfGet hashmaliciousMiraiBrowse
                                                                • 109.202.202.202
                                                                main_arm.elfGet hashmaliciousMiraiBrowse
                                                                • 109.202.202.202
                                                                45.126.126.33-sora.spc-2025-03-12T01_48_28.elfGet hashmaliciousMiraiBrowse
                                                                • 109.202.202.202
                                                                i.elfGet hashmaliciousMiraiBrowse
                                                                • 109.202.202.202
                                                                tftp.elfGet hashmaliciousUnknownBrowse
                                                                • 109.202.202.202
                                                                miner.elfGet hashmaliciousUnknownBrowse
                                                                • 109.202.202.202
                                                                miner.elfGet hashmaliciousUnknownBrowse
                                                                • 109.202.202.202
                                                                na.elfGet hashmaliciousPrometeiBrowse
                                                                • 109.202.202.202
                                                                na.elfGet hashmaliciousPrometeiBrowse
                                                                • 109.202.202.202
                                                                AMAZON-02USbot.arm6.elfGet hashmaliciousUnknownBrowse
                                                                • 54.247.62.1
                                                                http://camsapi.camsoline.comGet hashmaliciousUnknownBrowse
                                                                • 13.33.252.88
                                                                https://www.flugger.pl/Get hashmaliciousUnknownBrowse
                                                                • 3.161.136.94
                                                                https://www.flugger.pl/Get hashmaliciousUnknownBrowse
                                                                • 108.138.128.64
                                                                Electronic_Invoice(20 Mar 2025).pdf.htmlGet hashmaliciousHTMLPhisherBrowse
                                                                • 3.168.73.87
                                                                i.elfGet hashmaliciousMiraiBrowse
                                                                • 54.171.230.55
                                                                tftp.elfGet hashmaliciousUnknownBrowse
                                                                • 34.249.145.219
                                                                na.elfGet hashmaliciousPrometeiBrowse
                                                                • 54.255.164.76
                                                                miner.elfGet hashmaliciousUnknownBrowse
                                                                • 34.249.145.219
                                                                microsftgoodforenoughtogetstory.htaGet hashmaliciousCobalt Strike, FormBookBrowse
                                                                • 13.248.243.5
                                                                No context
                                                                No context
                                                                No created / dropped files found
                                                                File type:ELF 32-bit LSB executable, ARM, version 1 (ARM), statically linked, no section header
                                                                Entropy (8bit):7.978601898952389
                                                                TrID:
                                                                • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                                                                File name:bot.arm.elf
                                                                File size:53'392 bytes
                                                                MD5:7b7cafab82f1cbd31501f4b38db4c583
                                                                SHA1:0541c5d98aafb9b49dc29b6e908a0841286b0acd
                                                                SHA256:0646d6844cd7e7f9d81b84cb79fee92c24a1779ba1af5699c311c61ab9aa1c66
                                                                SHA512:27641c19c2febb49af437efa4e063de4fdfc761d51a1eea5610b8ea84851a4c23e14fe43523b5e3bc600efa15b498278c9d9898780f273e85c8d90a8001bec80
                                                                SSDEEP:1536:+D+sGdUzVocWs2j5p/t4n3coRYbFy4Hen:+DZGqats2Rzw4Hen
                                                                TLSH:7833F18066CA1873CAD19A7DEF7ADE5913F34AC859D172B70F19028DEA030D867BDC05
                                                                File Content Preview:.ELF...a..........(......=..4...........4. ...(.....................|...|...........................................Q.td............................K..gUPX!........L+..L+......T..........?.E.h;.}...^..........f.&...N>..z.j.xDY..E...}......l..W.rl6..\H...%

                                                                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:0x13db4
                                                                Flags:0x202
                                                                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
                                                                LOAD0x00x80000x80000xcf7c0xcf7c7.98000x5R E0x8000
                                                                LOAD0x00x180000x180000x00x1f3040.00000x6RW 0x8000
                                                                GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

                                                                Download Network PCAP: filteredfull

                                                                • Total Packets: 11
                                                                • 443 (HTTPS)
                                                                • 80 (HTTP)
                                                                TimestampSource PortDest PortSource IPDest IP
                                                                Mar 20, 2025 12:05:17.688942909 CET43928443192.168.2.2391.189.91.42
                                                                Mar 20, 2025 12:05:23.320137024 CET42836443192.168.2.2391.189.91.43
                                                                Mar 20, 2025 12:05:24.599881887 CET4251680192.168.2.23109.202.202.202
                                                                Mar 20, 2025 12:05:37.910089016 CET43928443192.168.2.2391.189.91.42
                                                                Mar 20, 2025 12:05:42.498054981 CET39242443192.168.2.2334.249.145.219
                                                                Mar 20, 2025 12:05:42.498156071 CET4433924234.249.145.219192.168.2.23
                                                                Mar 20, 2025 12:05:42.498305082 CET39242443192.168.2.2334.249.145.219
                                                                Mar 20, 2025 12:05:42.498672962 CET39242443192.168.2.2334.249.145.219
                                                                Mar 20, 2025 12:05:42.498704910 CET4433924234.249.145.219192.168.2.23
                                                                Mar 20, 2025 12:05:50.200509071 CET42836443192.168.2.2391.189.91.43
                                                                Mar 20, 2025 12:05:54.291763067 CET4251680192.168.2.23109.202.202.202
                                                                Mar 20, 2025 12:06:18.864250898 CET43928443192.168.2.2391.189.91.42
                                                                Mar 20, 2025 12:06:42.490287066 CET39242443192.168.2.2334.249.145.219
                                                                Mar 20, 2025 12:06:42.532363892 CET4433924234.249.145.219192.168.2.23
                                                                Mar 20, 2025 12:07:22.418183088 CET4433924234.249.145.219192.168.2.23

                                                                System Behavior

                                                                Start time (UTC):11:05:16
                                                                Start date (UTC):20/03/2025
                                                                Path:/tmp/bot.arm.elf
                                                                Arguments:/tmp/bot.arm.elf
                                                                File size:4956856 bytes
                                                                MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

                                                                Start time (UTC):11:06:41
                                                                Start date (UTC):20/03/2025
                                                                Path:/usr/bin/dash
                                                                Arguments:-
                                                                File size:129816 bytes
                                                                MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                                                Start time (UTC):11:06:41
                                                                Start date (UTC):20/03/2025
                                                                Path:/usr/bin/rm
                                                                Arguments:rm -f /tmp/tmp.orFhDPizJ2 /tmp/tmp.Dp0SRlaB22 /tmp/tmp.UvxBwPrRwu
                                                                File size:72056 bytes
                                                                MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b

                                                                Start time (UTC):11:06:41
                                                                Start date (UTC):20/03/2025
                                                                Path:/usr/bin/dash
                                                                Arguments:-
                                                                File size:129816 bytes
                                                                MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                                                Start time (UTC):11:06:41
                                                                Start date (UTC):20/03/2025
                                                                Path:/usr/bin/rm
                                                                Arguments:rm -f /tmp/tmp.orFhDPizJ2 /tmp/tmp.Dp0SRlaB22 /tmp/tmp.UvxBwPrRwu
                                                                File size:72056 bytes
                                                                MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b