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Linux Analysis Report
.5r3fqt67ew531has4231.mips.elf

Overview

General Information

Sample name:.5r3fqt67ew531has4231.mips.elf
Analysis ID:1644192
MD5:679aa3627521f0ebccba77d1fd95a1e1
SHA1:39bee2155626d56f9f0f59c3819ee2e54da435e8
SHA256:5647a9f614f8abe8ff3382dedeb2a618762a0fe165ff1c282e0266fd70fc75d8
Tags:elfuser-abuse_ch
Infos:

Detection

Score:52
Range:0 - 100

Signatures

Multi AV Scanner detection for submitted file
Sample is packed with UPX
ELF contains segments with high entropy indicating compressed/encrypted content
Sample contains only a LOAD segment without any section mappings
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious
Joe Sandbox version:42.0.0 Malachite
Analysis ID:1644192
Start date and time:2025-03-20 12:46:07 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 31s
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:.5r3fqt67ew531has4231.mips.elf
Detection:MAL
Classification:mal52.evad.linELF@0/0@2/0
Command:/tmp/.5r3fqt67ew531has4231.mips.elf
PID:5551
Exit Code:133
Exit Code Info:
Killed:False
Standard Output:

Standard Error:qemu: uncaught target signal 5 (Trace/breakpoint trap) - core dumped
  • system is lnxubuntu20
  • cleanup
No yara matches
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: .5r3fqt67ew531has4231.mips.elfVirustotal: Detection: 29%Perma Link
Source: .5r3fqt67ew531has4231.mips.elfReversingLabs: Detection: 33%
Source: global trafficDNS traffic detected: DNS query: daisy.ubuntu.com
Source: .5r3fqt67ew531has4231.mips.elfString found in binary or memory: http://upx.sf.net
Source: LOAD without section mappingsProgram segment: 0x400000
Source: classification engineClassification label: mal52.evad.linELF@0/0@2/0

Data Obfuscation

barindex
Source: initial sampleString containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sampleString containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sampleString containing UPX found: $Id: UPX 3.95 Copyright (C) 1996-2018 the UPX Team. All Rights Reserved. $
Source: .5r3fqt67ew531has4231.mips.elfSubmission file: segment LOAD with 7.9663 entropy (max. 8.0)
Source: /tmp/.5r3fqt67ew531has4231.mips.elf (PID: 5551)Queries kernel information via 'uname': Jump to behavior
Source: .5r3fqt67ew531has4231.mips.elf, 5551.1.00005638a6443000.00005638a64ca000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/mips
Source: .5r3fqt67ew531has4231.mips.elf, 5551.1.00007ffed5b01000.00007ffed5b22000.rw-.sdmpBinary or memory string: /usr/bin/qemu-mips
Source: .5r3fqt67ew531has4231.mips.elf, 5551.1.00005638a6443000.00005638a64ca000.rw-.sdmpBinary or memory string: 8V!/etc/qemu-binfmt/mips
Source: .5r3fqt67ew531has4231.mips.elf, 5551.1.00007ffed5b01000.00007ffed5b22000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-mips/tmp/.5r3fqt67ew531has4231.mips.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/.5r3fqt67ew531has4231.mips.elf
Source: .5r3fqt67ew531has4231.mips.elf, 5551.1.00007ffed5b01000.00007ffed5b22000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 5 (Trace/breakpoint trap) - core dumped
ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
Gather Victim Identity InformationAcquire InfrastructureValid AccountsWindows Management InstrumentationPath InterceptionPath Interception11
Obfuscated Files or Information
OS 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: 1644192 Sample: .5r3fqt67ew531has4231.mips.elf Startdate: 20/03/2025 Architecture: LINUX Score: 52 8 daisy.ubuntu.com 2->8 10 Multi AV Scanner detection for submitted file 2->10 12 Sample is packed with UPX 2->12 6 .5r3fqt67ew531has4231.mips.elf 2->6         started        signatures3 process4
SourceDetectionScannerLabelLink
.5r3fqt67ew531has4231.mips.elf30%VirustotalBrowse
.5r3fqt67ew531has4231.mips.elf33%ReversingLabsLinux.Trojan.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
    NameSourceMaliciousAntivirus DetectionReputation
    http://upx.sf.net.5r3fqt67ew531has4231.mips.elffalse
      high
      No contacted IP infos
      No context
      MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
      daisy.ubuntu.com.5r3fqt67ew531has4231.dbg.elfGet hashmaliciousMirai, Gafgyt, Moobot, OkiruBrowse
      • 162.213.35.24
      .5r3fqt67ew531has4231.arm7.elfGet hashmaliciousUnknownBrowse
      • 162.213.35.24
      .5r3fqt67ew531has4231.arm5.elfGet hashmaliciousUnknownBrowse
      • 162.213.35.25
      main_arm6.elfGet hashmaliciousMiraiBrowse
      • 162.213.35.25
      arm5.elfGet hashmaliciousUnknownBrowse
      • 162.213.35.25
      debug.dbg.elfGet hashmaliciousMiraiBrowse
      • 162.213.35.25
      main_arm6.elfGet hashmaliciousMiraiBrowse
      • 162.213.35.24
      bot.mpsl.elfGet hashmaliciousUnknownBrowse
      • 162.213.35.24
      bot.arm6.elfGet hashmaliciousUnknownBrowse
      • 162.213.35.24
      bot.mips.elfGet hashmaliciousUnknownBrowse
      • 162.213.35.25
      No context
      No context
      No context
      No created / dropped files found
      File type:ELF 32-bit MSB executable, MIPS, MIPS-I version 1 (SYSV), statically linked, no section header
      Entropy (8bit):7.964615209588304
      TrID:
      • ELF Executable and Linkable format (Linux) (4029/14) 50.16%
      • ELF Executable and Linkable format (generic) (4004/1) 49.84%
      File name:.5r3fqt67ew531has4231.mips.elf
      File size:61'864 bytes
      MD5:679aa3627521f0ebccba77d1fd95a1e1
      SHA1:39bee2155626d56f9f0f59c3819ee2e54da435e8
      SHA256:5647a9f614f8abe8ff3382dedeb2a618762a0fe165ff1c282e0266fd70fc75d8
      SHA512:47ac4a73e3c336b0074732a54b772dada533625fd67488a48ecea2a36417f4304f309cb788ae59d257a9298d3cd7ae5924d44e2f58fbbb304c5c3d35ad112a06
      SSDEEP:1536:xh9UXUzpdFM0tpXhla9qXuyMevE5AXkVqY9:xMQXa9qXHPvE58kVqY9
      TLSH:EA53013D1B1A14E6E27629F322E7D791197D8C6B6F13AA045E554CC3EF258E02C96C2C
      File Content Preview:.ELF.....................@.`...4.........4. ...(.............@...@.....n...n.................A...A........m..........#..UPX!..........'...'........W.......?.E.h4...@b..) ..]....-!.....'s;..T..D.j..PX;fjr.!...#..j...XF..R`..v...(.K\ ..........l...-........

      ELF header

      Class:ELF32
      Data:2's complement, big endian
      Version:1 (current)
      Machine:MIPS R3000
      Version Number:0x1
      Type:EXEC (Executable file)
      OS/ABI:UNIX - System V
      ABI Version:0
      Entry Point Address:0x40dc60
      Flags:0x1007
      ELF Header Size:52
      Program Header Offset:52
      Program Header Size:32
      Number of Program Headers:2
      Section Header Offset:0
      Section Header Size:40
      Number of Section Headers:0
      Header String Table Index:0
      TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
      LOAD0x00x4000000x4000000xf06e0xf06e7.96630x5R E0x10000
      LOAD0x00x4100000x4100000x00x66d900.00000x6RW 0x10000

      Download Network PCAP: filteredfull

      TimestampSource PortDest PortSource IPDest IP
      Mar 20, 2025 12:47:04.372361898 CET4411753192.168.2.158.8.8.8
      Mar 20, 2025 12:47:04.372405052 CET5545853192.168.2.158.8.8.8
      Mar 20, 2025 12:47:04.462579966 CET53441178.8.8.8192.168.2.15
      Mar 20, 2025 12:47:04.463001966 CET53554588.8.8.8192.168.2.15
      TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
      Mar 20, 2025 12:47:04.372361898 CET192.168.2.158.8.8.80xbcacStandard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
      Mar 20, 2025 12:47:04.372405052 CET192.168.2.158.8.8.80x4720Standard query (0)daisy.ubuntu.com28IN (0x0001)false
      TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
      Mar 20, 2025 12:47:04.462579966 CET8.8.8.8192.168.2.150xbcacNo error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false
      Mar 20, 2025 12:47:04.462579966 CET8.8.8.8192.168.2.150xbcacNo error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false

      System Behavior

      Start time (UTC):11:47:01
      Start date (UTC):20/03/2025
      Path:/tmp/.5r3fqt67ew531has4231.mips.elf
      Arguments:/tmp/.5r3fqt67ew531has4231.mips.elf
      File size:5777432 bytes
      MD5 hash:0083f1f0e77be34ad27f849842bbb00c