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Linux Analysis Report
demon.arm5.elf

Overview

General Information

Sample name:demon.arm5.elf
Analysis ID:1620043
MD5:07861f09f3d76d48ba003e3a9377b863
SHA1:2fcd6083689c13e135507c2515f965cd92b84d68
SHA256:bf0989208b94177434b0f2e25220f4d0d3050c6f349b05fde7cc717f40a157b9
Tags:elfuser-abuse_ch
Infos:

Detection

Score:48
Range:0 - 100

Signatures

Multi AV Scanner detection for submitted file
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:1620043
Start date and time:2025-02-20 16:02:20 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 26s
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:demon.arm5.elf
Detection:MAL
Classification:mal48.linELF@0/0@2/0
Command:/tmp/demon.arm5.elf
PID:5483
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
  • demon.arm5.elf (PID: 5483, Parent: 5409, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/demon.arm5.elf
  • cleanup
No yara matches
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: demon.arm5.elfReversingLabs: Detection: 18%
Source: unknownUDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknownUDP traffic detected without corresponding DNS query: 1.1.1.1
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: mal48.linELF@0/0@2/0
Source: /tmp/demon.arm5.elf (PID: 5483)Queries kernel information via 'uname': Jump to behavior
Source: demon.arm5.elf, 5483.1.000055fc2b9e2000.000055fc2bb10000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/arm
Source: demon.arm5.elf, 5483.1.000055fc2b9e2000.000055fc2bb10000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: demon.arm5.elf, 5483.1.00007ffd6293d000.00007ffd6295e000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
Source: demon.arm5.elf, 5483.1.00007ffd6293d000.00007ffd6295e000.rw-.sdmpBinary or memory string: Qx86_64/usr/bin/qemu-arm/tmp/demon.arm5.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/demon.arm5.elf
Source: demon.arm5.elf, 5483.1.00007ffd6293d000.00007ffd6295e000.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 InterceptionDirect Volume AccessOS Credential Dumping11
Security Software Discovery
Remote ServicesData from Local System1
Non-Application Layer Protocol
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: 1620043 Sample: demon.arm5.elf Startdate: 20/02/2025 Architecture: LINUX Score: 48 8 daisy.ubuntu.com 2->8 10 Multi AV Scanner detection for submitted file 2->10 6 demon.arm5.elf 2->6         started        signatures3 process4

This section contains all screenshots as thumbnails, including those not shown in the slideshow.


windows-stand
SourceDetectionScannerLabelLink
demon.arm5.elf18%ReversingLabsLinux.Backdoor.Mirai
No Antivirus matches
No Antivirus matches
No Antivirus matches

Download Network PCAP: filteredfull

NameIPActiveMaliciousAntivirus DetectionReputation
daisy.ubuntu.com
162.213.35.25
truefalse
    high
    No contacted IP infos
    No context
    MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
    daisy.ubuntu.com.i.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    dlr.spc.elfGet hashmaliciousUnknownBrowse
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    dlr.m68k.elfGet hashmaliciousUnknownBrowse
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    dlr.ppc.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    arm5.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    arm.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    mips.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    mpsl.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    m68k.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    i.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    No context
    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):6.039433006007854
    TrID:
    • ELF Executable and Linkable format (generic) (4004/1) 100.00%
    File name:demon.arm5.elf
    File size:47'044 bytes
    MD5:07861f09f3d76d48ba003e3a9377b863
    SHA1:2fcd6083689c13e135507c2515f965cd92b84d68
    SHA256:bf0989208b94177434b0f2e25220f4d0d3050c6f349b05fde7cc717f40a157b9
    SHA512:5347ecaf5c5a9550b7e8a9659c73cef9e1fb0ac51588620fe23d1307c9c142ef64b0eac060b84e8d8d8a7a6aeddadfcf78b4c13eeb900b57fa5ca826e1146498
    SSDEEP:768:eYnFRrf+whaywOD0mTQPItNViZc7mWbq3B4TnD9oV2Dj5CY/II:eYnFRrVay3FcPIBi67tbq3uLP5CY/B
    TLSH:F023195AF981AB12D5C1117AFE0E124E73134B3CE3EE7326AE246B34778756B0E3A415
    File Content Preview:.ELF..............(.....T...4...........4. ...(.....................................................................Q.td..................................-...L..................@-.,@...0....S..... 0....S.........../..0...0...@..../.p.............-.@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:46564
    Section Header Size:40
    Number of Section Headers:12
    Header String Table Index:11
    NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
    NULL0x00x00x00x00x0000
    .initPROGBITS0x80940x940x100x00x6AX004
    .textPROGBITS0x80b00xb00xa0a80x00x6AX0016
    .finiPROGBITS0x121580xa1580x100x00x6AX004
    .rodataPROGBITS0x121680xa1680x11380x00x2A008
    .init_arrayINIT_ARRAY0x1b2a40xb2a80x40x00x3WA004
    .fini_arrayFINI_ARRAY0x1b2a80xb2ac0x40x00x3WA004
    .gotPROGBITS0x1b2b00xb2b40x780x40x3WA004
    .dataPROGBITS0x1b3280xb32c0x2480x00x3WA004
    .bssNOBITS0x1b5700xb5740x25ec0x00x3WA004
    .ARM.attributesARM_ATTRIBUTES0x00xb5740x100x00x0001
    .shstrtabSTRTAB0x00xb5840x5d0x00x0001
    TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
    LOAD0x00x80000x80000xb2a00xb2a06.07410x5R E0x8000.init .text .fini .rodata
    LOAD0xb2a40x1b2a40x1b2a00x2d00xa8b83.51870x6RW 0x8000.init_array .fini_array .got .data .bss
    GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

    Download Network PCAP: filteredfull

    TimestampSource PortDest PortSource IPDest IP
    Feb 20, 2025 16:03:11.074284077 CET5315553192.168.2.141.1.1.1
    Feb 20, 2025 16:03:11.074284077 CET5856153192.168.2.141.1.1.1
    Feb 20, 2025 16:03:11.082048893 CET53585611.1.1.1192.168.2.14
    Feb 20, 2025 16:03:11.082204103 CET53531551.1.1.1192.168.2.14
    TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
    Feb 20, 2025 16:03:11.074284077 CET192.168.2.141.1.1.10xf4f7Standard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
    Feb 20, 2025 16:03:11.074284077 CET192.168.2.141.1.1.10x2c1Standard query (0)daisy.ubuntu.com28IN (0x0001)false
    TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
    Feb 20, 2025 16:03:11.082204103 CET1.1.1.1192.168.2.140xf4f7No error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false
    Feb 20, 2025 16:03:11.082204103 CET1.1.1.1192.168.2.140xf4f7No error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false

    System Behavior

    Start time (UTC):15:03:09
    Start date (UTC):20/02/2025
    Path:/tmp/demon.arm5.elf
    Arguments:/tmp/demon.arm5.elf
    File size:4956856 bytes
    MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1