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Linux Analysis Report
arm6.elf

Overview

General Information

Sample name:arm6.elf
Analysis ID:1648009
MD5:26314b25551d6f13b0780a1f0de58f6e
SHA1:99f8429399ac7b6e52ed248e35ca5fe46b16ad67
SHA256:e4011af6687ac9f6f36dd22497413b528444a08174016665a3115f98bf63223a
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 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:1648009
Start date and time:2025-03-25 13:43:51 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 45s
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:arm6.elf
Detection:MAL
Classification:mal48.linELF@0/0@0/0
Command:/tmp/arm6.elf
PID:6268
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
  • arm6.elf (PID: 6268, Parent: 6189, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm6.elf
  • dash New Fork (PID: 6348, Parent: 4331)
  • rm (PID: 6348, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.YLUp2NJnIl /tmp/tmp.IhuvBWgl79 /tmp/tmp.2orYqk9U7K
  • dash New Fork (PID: 6349, Parent: 4331)
  • rm (PID: 6349, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.YLUp2NJnIl /tmp/tmp.IhuvBWgl79 /tmp/tmp.2orYqk9U7K
  • cleanup
No yara matches
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: arm6.elfVirustotal: Detection: 20%Perma Link
Source: arm6.elfReversingLabs: Detection: 33%
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: 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: 91.189.91.42
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: 91.189.91.43
Source: unknownNetwork traffic detected: HTTP traffic on port 43928 -> 443
Source: unknownNetwork traffic detected: HTTP traffic on port 39248 -> 443
Source: unknownNetwork traffic detected: HTTP traffic on port 443 -> 39248
Source: unknownNetwork traffic detected: HTTP traffic on port 42836 -> 443
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: 6348)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.YLUp2NJnIl /tmp/tmp.IhuvBWgl79 /tmp/tmp.2orYqk9U7KJump to behavior
Source: /usr/bin/dash (PID: 6349)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.YLUp2NJnIl /tmp/tmp.IhuvBWgl79 /tmp/tmp.2orYqk9U7KJump to behavior
Source: /tmp/arm6.elf (PID: 6268)Queries kernel information via 'uname': Jump to behavior
Source: arm6.elf, 6268.1.000056103a5da000.000056103a708000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: arm6.elf, 6268.1.00007ffd1ea8b000.00007ffd1eaac000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
Source: arm6.elf, 6268.1.000056103a5da000.000056103a708000.rw-.sdmpBinary or memory string: V!/etc/qemu-binfmt/arm
Source: arm6.elf, 6268.1.00007ffd1ea8b000.00007ffd1eaac000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-arm/tmp/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/arm6.elf
Source: arm6.elf, 6268.1.00007ffd1ea8b000.00007ffd1eaac000.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 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: 1648009 Sample: arm6.elf Startdate: 25/03/2025 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 arm6.elf 2->10         started        signatures3 process4
SourceDetectionScannerLabelLink
arm6.elf20%VirustotalBrowse
arm6.elf33%ReversingLabsLinux.Backdoor.Mirai
No Antivirus matches
No Antivirus matches
No Antivirus matches

Download Network PCAP: filteredfull

No contacted domains info
  • 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
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                                                              No created / dropped files found
                                                              File type:ELF 32-bit LSB executable, ARM, EABI4 version 1 (SYSV), statically linked, stripped
                                                              Entropy (8bit):6.067194344075846
                                                              TrID:
                                                              • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                                                              File name:arm6.elf
                                                              File size:67'096 bytes
                                                              MD5:26314b25551d6f13b0780a1f0de58f6e
                                                              SHA1:99f8429399ac7b6e52ed248e35ca5fe46b16ad67
                                                              SHA256:e4011af6687ac9f6f36dd22497413b528444a08174016665a3115f98bf63223a
                                                              SHA512:d3325a926d1f5fcf2db3b676100b60f620cbe3a718ee55bb5079840d2245eabded4f90a024b471dd3fe3fa5f13c257db23b130a5e479a61c400ecc7f016cb15e
                                                              SSDEEP:1536:I0nteKBf/q+JPSwli8h3rakfsm8QzMNiTiY/Bj5YYQl:Ra+JPSqzh3rak7ikBjWjl
                                                              TLSH:8E632956B8819B11D5C112BAFA1E128E3323177CE3DE73129E146F2577CB96B0E7B806
                                                              File Content Preview:.ELF..............(.....T...4...8.......4. ...(.....................`...`...............d...d...`...d...X...........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:66616
                                                              Section Header Size:40
                                                              Number of Section Headers:12
                                                              Header String Table Index:11
                                                              NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
                                                              NULL0x00x00x00x00x0000
                                                              .initPROGBITS0x80940x940x100x00x6AX004
                                                              .textPROGBITS0x80b00xb00xec9c0x00x6AX0016
                                                              .finiPROGBITS0x16d4c0xed4c0x100x00x6AX004
                                                              .rodataPROGBITS0x16d600xed600x13000x00x2A008
                                                              .init_arrayINIT_ARRAY0x200640x100680x40x00x3WA004
                                                              .fini_arrayFINI_ARRAY0x200680x1006c0x40x00x3WA004
                                                              .gotPROGBITS0x200700x100740x780x40x3WA004
                                                              .dataPROGBITS0x200e80x100ec0x2dc0x00x3WA004
                                                              .bssNOBITS0x203c40x103c80x64f80x00x3WA004
                                                              .ARM.attributesARM_ATTRIBUTES0x00x103c80x100x00x0001
                                                              .shstrtabSTRTAB0x00x103d80x5d0x00x0001
                                                              TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
                                                              LOAD0x00x80000x80000x100600x100606.08620x5R E0x8000.init .text .fini .rodata
                                                              LOAD0x100640x200640x200600x3640xe8584.49380x6RW 0x8000.init_array .fini_array .got .data .bss
                                                              GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

                                                              Download Network PCAP: filteredfull

                                                              • Total Packets: 12
                                                              • 443 (HTTPS)
                                                              • 80 (HTTP)
                                                              TimestampSource PortDest PortSource IPDest IP
                                                              Mar 25, 2025 13:44:44.376962900 CET43928443192.168.2.2391.189.91.42
                                                              Mar 25, 2025 13:44:49.752401114 CET42836443192.168.2.2391.189.91.43
                                                              Mar 25, 2025 13:44:51.543936014 CET4251680192.168.2.23109.202.202.202
                                                              Mar 25, 2025 13:44:58.394048929 CET39248443192.168.2.2334.249.145.219
                                                              Mar 25, 2025 13:44:58.394149065 CET4433924834.249.145.219192.168.2.23
                                                              Mar 25, 2025 13:44:58.394233942 CET39248443192.168.2.2334.249.145.219
                                                              Mar 25, 2025 13:44:58.394465923 CET39248443192.168.2.2334.249.145.219
                                                              Mar 25, 2025 13:44:58.394485950 CET4433924834.249.145.219192.168.2.23
                                                              Mar 25, 2025 13:45:05.110093117 CET43928443192.168.2.2391.189.91.42
                                                              Mar 25, 2025 13:45:15.348702908 CET42836443192.168.2.2391.189.91.43
                                                              Mar 25, 2025 13:45:21.491986990 CET4251680192.168.2.23109.202.202.202
                                                              Mar 25, 2025 13:45:46.064624071 CET43928443192.168.2.2391.189.91.42
                                                              Mar 25, 2025 13:45:58.386662006 CET39248443192.168.2.2334.249.145.219
                                                              Mar 25, 2025 13:45:58.428286076 CET4433924834.249.145.219192.168.2.23
                                                              Mar 25, 2025 13:46:06.541682959 CET42836443192.168.2.2391.189.91.43
                                                              Mar 25, 2025 13:46:48.299803972 CET4433924834.249.145.219192.168.2.23

                                                              System Behavior

                                                              Start time (UTC):12:44:43
                                                              Start date (UTC):25/03/2025
                                                              Path:/tmp/arm6.elf
                                                              Arguments:/tmp/arm6.elf
                                                              File size:4956856 bytes
                                                              MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

                                                              Start time (UTC):12:45:57
                                                              Start date (UTC):25/03/2025
                                                              Path:/usr/bin/dash
                                                              Arguments:-
                                                              File size:129816 bytes
                                                              MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                                              Start time (UTC):12:45:57
                                                              Start date (UTC):25/03/2025
                                                              Path:/usr/bin/rm
                                                              Arguments:rm -f /tmp/tmp.YLUp2NJnIl /tmp/tmp.IhuvBWgl79 /tmp/tmp.2orYqk9U7K
                                                              File size:72056 bytes
                                                              MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b

                                                              Start time (UTC):12:45:57
                                                              Start date (UTC):25/03/2025
                                                              Path:/usr/bin/dash
                                                              Arguments:-
                                                              File size:129816 bytes
                                                              MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                                              Start time (UTC):12:45:57
                                                              Start date (UTC):25/03/2025
                                                              Path:/usr/bin/rm
                                                              Arguments:rm -f /tmp/tmp.YLUp2NJnIl /tmp/tmp.IhuvBWgl79 /tmp/tmp.2orYqk9U7K
                                                              File size:72056 bytes
                                                              MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b