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Linux Analysis Report
hgfs.arm6.elf

Overview

General Information

Sample name:hgfs.arm6.elf
Analysis ID:1639233
MD5:5645214d612d02ec67b26e1fb2346d18
SHA1:be1fb220d29eb34691cad9135b367c14fe52780a
SHA256:79430aa1e656bb695526eda307e8c69bee89a3268bf800a37798de6a863c0b6c
Tags:elfuser-abuse_ch
Infos:

Detection

Score:48
Range:0 - 100

Signatures

Multi AV Scanner detection for submitted file
Executes the "rm" command used to delete files or directories
Sample contains strings that are potentially command strings
Sample has stripped symbol table
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

Joe Sandbox version:42.0.0 Malachite
Analysis ID:1639233
Start date and time:2025-03-15 06:27:13 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 24s
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:hgfs.arm6.elf
Detection:MAL
Classification:mal48.linELF@0/0@0/0
  • VT rate limit hit for: http://196.251.81.246/a
Command:/tmp/hgfs.arm6.elf
PID:6230
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
  • dash New Fork (PID: 6199, Parent: 4332)
  • rm (PID: 6199, Parent: 4332, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.U5nLiVRDcI /tmp/tmp.lTdO5VxNrs /tmp/tmp.iN6pqz7xDF
  • dash New Fork (PID: 6200, Parent: 4332)
  • rm (PID: 6200, Parent: 4332, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.U5nLiVRDcI /tmp/tmp.lTdO5VxNrs /tmp/tmp.iN6pqz7xDF
  • hgfs.arm6.elf (PID: 6230, Parent: 6128, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/hgfs.arm6.elf
  • cleanup
No yara matches
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: hgfs.arm6.elfVirustotal: Detection: 45%Perma Link
Source: hgfs.arm6.elfReversingLabs: Detection: 44%
Source: global trafficTCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global trafficTCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global trafficTCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80
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: 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: 91.189.91.43
Source: hgfs.arm6.elfString found in binary or memory: http://196.251.81.246/a
Source: unknownNetwork traffic detected: HTTP traffic on port 43928 -> 443
Source: unknownNetwork traffic detected: HTTP traffic on port 42836 -> 443
Source: Initial samplePotential command found: GET /set_ftp.cgi?loginuse=
Source: Initial samplePotential command found: GET /ftptest.cgi?loginuse=
Source: Initial samplePotential command found: GET login.cgi HTTP/1.0
Source: Initial samplePotential command found: GET /set_ftp.cgi?loginuse=&loginpas=&next_url=ftp.htm&port=21&user=ftp&pwd=ftp&dir=/&mode=PORT&upload_interval=0&svr=%24%28echo+-e+cd+/tmp+>>+/tmp/t%29 HTTP/1.0
Source: Initial samplePotential command found: GET /ftptest.cgi?loginuse=GET login.cgi HTTP/1.0
Source: ELF static info symbol of initial sample.symtab present: no
Source: classification engineClassification label: mal48.linELF@0/0@0/0
Source: /usr/bin/dash (PID: 6199)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.U5nLiVRDcI /tmp/tmp.lTdO5VxNrs /tmp/tmp.iN6pqz7xDFJump to behavior
Source: /usr/bin/dash (PID: 6200)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.U5nLiVRDcI /tmp/tmp.lTdO5VxNrs /tmp/tmp.iN6pqz7xDFJump to behavior
Source: /tmp/hgfs.arm6.elf (PID: 6230)Queries kernel information via 'uname': Jump to behavior
Source: hgfs.arm6.elf, 6230.1.000055b4a7e57000.000055b4a7f85000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/arm
Source: hgfs.arm6.elf, 6230.1.000055b4a7e57000.000055b4a7f85000.rw-.sdmpBinary or memory string: U!/tmp/hgfs.arm6.elf!AttributeTypeAndValue
Source: hgfs.arm6.elf, 6230.1.000055b4a7e57000.000055b4a7f85000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: hgfs.arm6.elf, 6230.1.00007fff4e454000.00007fff4e475000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
Source: hgfs.arm6.elf, 6230.1.00007fff4e454000.00007fff4e475000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-arm/tmp/hgfs.arm6.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/hgfs.arm6.elf
Source: hgfs.arm6.elf, 6230.1.00007fff4e454000.00007fff4e475000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Source: hgfs.arm6.elf, 6230.1.000055b4a7e57000.000055b4a7f85000.rw-.sdmp, hgfs.arm6.elf, 6230.1.00007fff4e454000.00007fff4e475000.rw-.sdmpBinary or memory string: /tmp/hgfs.arm6.elf
ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
Gather Victim Identity InformationAcquire InfrastructureValid Accounts1
Command and Scripting Interpreter
Path InterceptionPath Interception1
File Deletion
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 ScriptsRootkitLSASS 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
SourceDetectionScannerLabelLink
hgfs.arm6.elf45%VirustotalBrowse
hgfs.arm6.elf44%ReversingLabsLinux.Trojan.Mirai
No Antivirus matches
No Antivirus matches
No Antivirus matches
No contacted domains info
NameSourceMaliciousAntivirus DetectionReputation
http://196.251.81.246/ahgfs.arm6.elffalse
    unknown
    • No. of IPs < 25%
    • 25% < No. of IPs < 50%
    • 50% < No. of IPs < 75%
    • 75% < No. of IPs
    IPDomainCountryFlagASNASN NameMalicious
    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
    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
    91.189.91.43na.elfGet hashmaliciousPrometeiBrowse
      .i.elfGet hashmaliciousUnknownBrowse
        na.elfGet hashmaliciousPrometeiBrowse
          na.elfGet hashmaliciousPrometeiBrowse
            .i.elfGet hashmaliciousUnknownBrowse
              na.elfGet hashmaliciousPrometeiBrowse
                na.elfGet hashmaliciousPrometeiBrowse
                  .i.elfGet hashmaliciousUnknownBrowse
                    hgfs.arm7.elfGet hashmaliciousMiraiBrowse
                      na.elfGet hashmaliciousPrometeiBrowse
                        91.189.91.42na.elfGet hashmaliciousPrometeiBrowse
                          .i.elfGet hashmaliciousUnknownBrowse
                            na.elfGet hashmaliciousPrometeiBrowse
                              na.elfGet hashmaliciousPrometeiBrowse
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                                  na.elfGet hashmaliciousPrometeiBrowse
                                    na.elfGet hashmaliciousPrometeiBrowse
                                      .i.elfGet hashmaliciousUnknownBrowse
                                        hgfs.arm7.elfGet hashmaliciousMiraiBrowse
                                          na.elfGet hashmaliciousPrometeiBrowse
                                            No context
                                            MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
                                            CANONICAL-ASGBna.elfGet hashmaliciousPrometeiBrowse
                                            • 91.189.91.42
                                            .i.elfGet hashmaliciousUnknownBrowse
                                            • 91.189.91.42
                                            na.elfGet hashmaliciousPrometeiBrowse
                                            • 91.189.91.42
                                            na.elfGet hashmaliciousPrometeiBrowse
                                            • 91.189.91.42
                                            .i.elfGet hashmaliciousUnknownBrowse
                                            • 91.189.91.42
                                            na.elfGet hashmaliciousPrometeiBrowse
                                            • 91.189.91.42
                                            na.elfGet hashmaliciousPrometeiBrowse
                                            • 91.189.91.42
                                            .i.elfGet hashmaliciousUnknownBrowse
                                            • 91.189.91.42
                                            hgfs.arm7.elfGet hashmaliciousMiraiBrowse
                                            • 91.189.91.42
                                            na.elfGet hashmaliciousPrometeiBrowse
                                            • 91.189.91.42
                                            CANONICAL-ASGBna.elfGet hashmaliciousPrometeiBrowse
                                            • 91.189.91.42
                                            .i.elfGet hashmaliciousUnknownBrowse
                                            • 91.189.91.42
                                            na.elfGet hashmaliciousPrometeiBrowse
                                            • 91.189.91.42
                                            na.elfGet hashmaliciousPrometeiBrowse
                                            • 91.189.91.42
                                            .i.elfGet hashmaliciousUnknownBrowse
                                            • 91.189.91.42
                                            na.elfGet hashmaliciousPrometeiBrowse
                                            • 91.189.91.42
                                            na.elfGet hashmaliciousPrometeiBrowse
                                            • 91.189.91.42
                                            .i.elfGet hashmaliciousUnknownBrowse
                                            • 91.189.91.42
                                            hgfs.arm7.elfGet hashmaliciousMiraiBrowse
                                            • 91.189.91.42
                                            na.elfGet hashmaliciousPrometeiBrowse
                                            • 91.189.91.42
                                            INIT7CHna.elfGet hashmaliciousPrometeiBrowse
                                            • 109.202.202.202
                                            .i.elfGet hashmaliciousUnknownBrowse
                                            • 109.202.202.202
                                            na.elfGet hashmaliciousPrometeiBrowse
                                            • 109.202.202.202
                                            na.elfGet hashmaliciousPrometeiBrowse
                                            • 109.202.202.202
                                            .i.elfGet hashmaliciousUnknownBrowse
                                            • 109.202.202.202
                                            na.elfGet hashmaliciousPrometeiBrowse
                                            • 109.202.202.202
                                            na.elfGet hashmaliciousPrometeiBrowse
                                            • 109.202.202.202
                                            .i.elfGet hashmaliciousUnknownBrowse
                                            • 109.202.202.202
                                            hgfs.arm7.elfGet hashmaliciousMiraiBrowse
                                            • 109.202.202.202
                                            na.elfGet hashmaliciousPrometeiBrowse
                                            • 109.202.202.202
                                            No context
                                            No context
                                            No created / dropped files found
                                            File type:ELF 32-bit LSB executable, ARM, EABI4 version 1 (SYSV), statically linked, stripped
                                            Entropy (8bit):5.976941563219175
                                            TrID:
                                            • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                                            File name:hgfs.arm6.elf
                                            File size:38'372 bytes
                                            MD5:5645214d612d02ec67b26e1fb2346d18
                                            SHA1:be1fb220d29eb34691cad9135b367c14fe52780a
                                            SHA256:79430aa1e656bb695526eda307e8c69bee89a3268bf800a37798de6a863c0b6c
                                            SHA512:35d4140b6ed7b34d50402e9b0195cf4d774dc74014b6ff62973cbf84108e39925400ecb60edea9148bcc21f2dd945788e01a73db0c2ee059705947f62ee8c2d7
                                            SSDEEP:768:84nZEgXD2J/VxPvUWJ4IeoutUoDmm8ZI+IoeikMHqDqNoODV+xEx:84nBy1/UAWZjyI/hikMKDqNbx
                                            TLSH:8A03D55AFD81DF01C5D1027ABA1E128E7323572CE3DEB7129E246F256BC75BB0A3A405
                                            File Content Preview:.ELF..............(.....T...4...........4. ...(..........................................................z..........Q.td..................................-...L..................@-.,@...0....S..... 0....S.........../..0...0...@..../...............-.@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:UNIX - System V
                                            ABI Version:0
                                            Entry Point Address:0x8154
                                            Flags:0x4000002
                                            ELF Header Size:52
                                            Program Header Offset:52
                                            Program Header Size:32
                                            Number of Program Headers:3
                                            Section Header Offset:37892
                                            Section Header Size:40
                                            Number of Section Headers:12
                                            Header String Table Index:11
                                            NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
                                            NULL0x00x00x00x00x0000
                                            .initPROGBITS0x80940x940x100x00x6AX004
                                            .textPROGBITS0x80b00xb00x88000x00x6AX0016
                                            .finiPROGBITS0x108b00x88b00x100x00x6AX004
                                            .rodataPROGBITS0x108c00x88c00x8200x00x2A004
                                            .init_arrayINIT_ARRAY0x190e40x90e80x40x00x3WA004
                                            .fini_arrayFINI_ARRAY0x190e80x90ec0x40x00x3WA004
                                            .gotPROGBITS0x190f00x90f40x740x40x3WA004
                                            .dataPROGBITS0x191640x91680x22c0x00x3WA004
                                            .bssNOBITS0x193900x93940xf8240x00x3WA004
                                            .ARM.attributesARM_ATTRIBUTES0x00x93940x100x00x0001
                                            .shstrtabSTRTAB0x00x93a40x5d0x00x0001
                                            TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
                                            LOAD0x00x80000x80000x90e00x90e06.01520x5R E0x8000.init .text .fini .rodata
                                            LOAD0x90e40x190e40x190e00x2b00x17ad03.73350x6RW 0x8000.init_array .fini_array .got .data .bss
                                            GNU_STACK0x00x00x00x00x00.00000x7RWE0x4
                                            TimestampSource PortDest PortSource IPDest IP
                                            Mar 15, 2025 06:27:56.142841101 CET43928443192.168.2.2391.189.91.42
                                            Mar 15, 2025 06:28:01.774135113 CET42836443192.168.2.2391.189.91.43
                                            Mar 15, 2025 06:28:03.309919119 CET4251680192.168.2.23109.202.202.202
                                            Mar 15, 2025 06:28:17.132052898 CET43928443192.168.2.2391.189.91.42
                                            Mar 15, 2025 06:28:27.370706081 CET42836443192.168.2.2391.189.91.43
                                            Mar 15, 2025 06:28:33.513828993 CET4251680192.168.2.23109.202.202.202
                                            Mar 15, 2025 06:28:58.086503983 CET43928443192.168.2.2391.189.91.42
                                            Mar 15, 2025 06:29:18.563719988 CET42836443192.168.2.2391.189.91.43

                                            System Behavior

                                            Start time (UTC):05:27:49
                                            Start date (UTC):15/03/2025
                                            Path:/usr/bin/dash
                                            Arguments:-
                                            File size:129816 bytes
                                            MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                            Start time (UTC):05:27:49
                                            Start date (UTC):15/03/2025
                                            Path:/usr/bin/rm
                                            Arguments:rm -f /tmp/tmp.U5nLiVRDcI /tmp/tmp.lTdO5VxNrs /tmp/tmp.iN6pqz7xDF
                                            File size:72056 bytes
                                            MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b

                                            Start time (UTC):05:27:49
                                            Start date (UTC):15/03/2025
                                            Path:/usr/bin/dash
                                            Arguments:-
                                            File size:129816 bytes
                                            MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                            Start time (UTC):05:27:49
                                            Start date (UTC):15/03/2025
                                            Path:/usr/bin/rm
                                            Arguments:rm -f /tmp/tmp.U5nLiVRDcI /tmp/tmp.lTdO5VxNrs /tmp/tmp.iN6pqz7xDF
                                            File size:72056 bytes
                                            MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b

                                            Start time (UTC):05:27:54
                                            Start date (UTC):15/03/2025
                                            Path:/tmp/hgfs.arm6.elf
                                            Arguments:/tmp/hgfs.arm6.elf
                                            File size:4956856 bytes
                                            MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1