Joe Sandbox Cloud Basic Analysis Report
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Linux Analysis Report
arm7.elf

Overview

General Information

Sample name:arm7.elf
Analysis ID:1650449
MD5:7b459975e8245882df689271d1d3444c
SHA1:e0425b5787724af57026167ce81e9d108d52bc06
SHA256:ac496e1025d624b42cbb1a6a1e39075539bf5775a58ca0590ab4976c9469cde7
Tags:elfuser-abuse_ch
Infos:

Detection

Score:48
Range:0 - 100

Signatures

Multi AV Scanner detection for submitted file
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

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious

General Information

Joe Sandbox version:42.0.0 Malachite
Analysis ID:1650449
Start date and time:2025-03-27 18:22:44 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 40s
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:arm7.elf
Detection:MAL
Classification:mal48.linELF@0/0@0/0

Runtime Messages

Command:/tmp/arm7.elf
PID:5496
Exit Code:1
Exit Code Info:
Killed:False
Standard Output:

Standard Error:

Process Tree

  • system is lnxubuntu20
  • arm7.elf (PID: 5496, Parent: 5413, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm7.elf
  • cleanup

Yara Signatures

⊘No yara matches

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

  • • AV Detection
  • • Networking
  • • System Summary
  • • Malware Analysis System Evasion

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: arm7.elfReversingLabs: Detection: 13%
Source: global trafficTCP traffic: 192.168.2.14:46540 -> 185.125.190.26:443
Source: unknownTCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknownTCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknownNetwork traffic detected: HTTP traffic on port 46540 -> 443
Source: ELF static info symbol of initial sample.symtab present: no
Source: classification engineClassification label: mal48.linELF@0/0@0/0
Source: /tmp/arm7.elf (PID: 5496)Queries kernel information via 'uname': Jump to behavior
Source: arm7.elf, 5496.1.000055fcae936000.000055fcaea64000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/arm
Source: arm7.elf, 5496.1.000055fcae936000.000055fcaea64000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: arm7.elf, 5496.1.00007ffecbfa7000.00007ffecbfc8000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
Source: arm7.elf, 5496.1.00007ffecbfa7000.00007ffecbfc8000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-arm/tmp/arm7.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/arm7.elf

Mitre Att&ck Matrix

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
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

Malware Configuration

⊘No configs have been found

Behavior Graph

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: 1650449 Sample: arm7.elf Startdate: 27/03/2025 Architecture: LINUX Score: 48 8 185.125.190.26, 443 CANONICAL-ASGB United Kingdom 2->8 10 Multi AV Scanner detection for submitted file 2->10 6 arm7.elf 2->6         started        signatures3 process4

Screenshots

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Thumbnails

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windows-stand

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

SourceDetectionScannerLabelLink
arm7.elf14%ReversingLabsLinux.Backdoor.Mirai

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

⊘No contacted domains info

World Map of Contacted IPs

  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Public IPs

IPDomainCountryFlagASNASN NameMalicious
185.125.190.26
unknownUnited Kingdom
41231CANONICAL-ASGBfalse

Joe Sandbox View / Context

IPs

MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
185.125.190.26arm5.elfGet hashmaliciousUnknownBrowse
    mips.elfGet hashmaliciousUnknownBrowse
      arm.elfGet hashmaliciousUnknownBrowse
        na.elfGet hashmaliciousPrometeiBrowse
          SecuriteInfo.com.Linux.Mirai.4306.30063.19032.elfGet hashmaliciousUnknownBrowse
            na.elfGet hashmaliciousPrometeiBrowse
              na.elfGet hashmaliciousPrometeiBrowse
                resgod.mpsl.elfGet hashmaliciousMiraiBrowse
                  hanoi.mpsl.elfGet hashmaliciousUnknownBrowse
                    resgod.arm5.elfGet hashmaliciousMiraiBrowse

                      Domains

                      ⊘No context

                      ASNs

                      MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
                      CANONICAL-ASGBarm5.elfGet hashmaliciousUnknownBrowse
                      • 185.125.190.26
                      na.elfGet hashmaliciousPrometeiBrowse
                      • 91.189.91.42
                      mips.elfGet hashmaliciousUnknownBrowse
                      • 185.125.190.26
                      arm.elfGet hashmaliciousUnknownBrowse
                      • 185.125.190.26
                      na.elfGet hashmaliciousPrometeiBrowse
                      • 185.125.190.26
                      na.elfGet hashmaliciousPrometeiBrowse
                      • 91.189.91.42
                      na.elfGet hashmaliciousPrometeiBrowse
                      • 91.189.91.42
                      na.elfGet hashmaliciousPrometeiBrowse
                      • 91.189.91.42
                      arm.elfGet hashmaliciousUnknownBrowse
                      • 91.189.91.42
                      arm5.elfGet hashmaliciousUnknownBrowse
                      • 91.189.91.42

                      JA3 Fingerprints

                      ⊘No context

                      Dropped Files

                      ⊘No context

                      Created / dropped Files

                      ⊘No created / dropped files found

                      Static File Info

                      General

                      File type:ELF 32-bit LSB executable, ARM, EABI4 version 1 (SYSV), statically linked, stripped
                      Entropy (8bit):6.03110352433675
                      TrID:
                      • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                      File name:arm7.elf
                      File size:71'236 bytes
                      MD5:7b459975e8245882df689271d1d3444c
                      SHA1:e0425b5787724af57026167ce81e9d108d52bc06
                      SHA256:ac496e1025d624b42cbb1a6a1e39075539bf5775a58ca0590ab4976c9469cde7
                      SHA512:469c77b02855831a9cb0b625ef6debbb8db548073a400aaad311fcdc0afeecb868c500d9f2979212109d20709d2d8bdae1575116182b80c890b63255867c0541
                      SSDEEP:1536:vgnGmay/fY/DOCIktZ5gLJXjn02UNmllJ+i+1EM9YThj:rmkHCLJXjn0y+1h8
                      TLSH:1B63194AFD41AB11E5D632B9FE1E6149331317A8E3FA72028D245F7467C792B0F3A902
                      File Content Preview:.ELF..............(.........4...........4. ...(........p............................................................................(....D..........................................Q.td..................................-...L..................@-.,@...0....S

                      Static ELF Info

                      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:0x8194
                      Flags:0x4000002
                      ELF Header Size:52
                      Program Header Offset:52
                      Program Header Size:32
                      Number of Program Headers:5
                      Section Header Offset:70596
                      Section Header Size:40
                      Number of Section Headers:16
                      Header String Table Index:15

                      Sections

                      NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
                      NULL0x00x00x00x00x0000
                      .initPROGBITS0x80d40xd40x100x00x6AX004
                      .textPROGBITS0x80f00xf00xfef40x00x6AX0016
                      .finiPROGBITS0x17fe40xffe40x100x00x6AX004
                      .rodataPROGBITS0x17ff40xfff40xc880x00x2A004
                      .ARM.extabPROGBITS0x18c7c0x10c7c0x180x00x2A004
                      .ARM.exidxARM_EXIDX0x18c940x10c940x1180x00x82AL204
                      .eh_framePROGBITS0x210000x110000x40x00x3WA004
                      .tbssNOBITS0x210040x110040x80x00x403WAT004
                      .init_arrayINIT_ARRAY0x210040x110040x40x00x3WA004
                      .fini_arrayFINI_ARRAY0x210080x110080x40x00x3WA004
                      .gotPROGBITS0x210100x110100xa80x40x3WA004
                      .dataPROGBITS0x210b80x110b80x2700x00x3WA004
                      .bssNOBITS0x213280x113280x415c0x00x3WA004
                      .ARM.attributesARM_ATTRIBUTES0x00x113280x160x00x0001
                      .shstrtabSTRTAB0x00x1133e0x830x00x0001

                      Program Segments

                      TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
                      EXIDX0x10c940x18c940x18c940x1180x1184.47810x4R 0x4.ARM.exidx
                      LOAD0x00x80000x80000x10dac0x10dac6.07810x5R E0x8000.init .text .fini .rodata .ARM.extab .ARM.exidx
                      LOAD0x110000x210000x210000x3280x44844.43410x6RW 0x8000.eh_frame .tbss .init_array .fini_array .got .data .bss
                      TLS0x110040x210040x210040x00x80.00000x4R 0x4.tbss
                      GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

                      Network Behavior

                      Download Network PCAP: filtered – full

                      TimestampSource PortDest PortSource IPDest IP
                      Mar 27, 2025 18:23:49.901751041 CET46540443192.168.2.14185.125.190.26
                      Mar 27, 2025 18:24:20.876554012 CET46540443192.168.2.14185.125.190.26

                      System Behavior

                      General

                      Start time (UTC):17:23:39
                      Start date (UTC):27/03/2025
                      Path:/tmp/arm7.elf
                      Arguments:/tmp/arm7.elf
                      File size:4956856 bytes
                      MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

                      File Activities

                      Process Activities

                      System Activities