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Linux Analysis Report
.5r3fqt67ew531has4231.mpsl.elf

Overview

General Information

Sample name:.5r3fqt67ew531has4231.mpsl.elf
Analysis ID:1644196
MD5:77e965c143f7facd4218e21fbe6f3e40
SHA1:c517fe76b77555be14468de40d96e5c2859e989d
SHA256:97fd6ed860813fdeb82b5af875ea51057f66b372d624f5c6c53803acf3c99d68
Tags:elfuser-abuse_ch
Infos:

Detection

Score:60
Range:0 - 100

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Sample is packed with UPX
ELF contains segments with high entropy indicating compressed/encrypted content
Executes the "rm" command used to delete files or directories
Sample contains only a LOAD segment without any section mappings
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
Joe Sandbox version:42.0.0 Malachite
Analysis ID:1644196
Start date and time:2025-03-20 12:49:26 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 58s
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.mpsl.elf
Detection:MAL
Classification:mal60.evad.linELF@0/0@0/0
Command:/tmp/.5r3fqt67ew531has4231.mpsl.elf
PID:6266
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
  • dash New Fork (PID: 6336, Parent: 4333)
  • rm (PID: 6336, Parent: 4333, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.6PR6qfKloa /tmp/tmp.ntQwhcj6AB /tmp/tmp.zHKtsgdluH
  • dash New Fork (PID: 6337, Parent: 4333)
  • rm (PID: 6337, Parent: 4333, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.6PR6qfKloa /tmp/tmp.ntQwhcj6AB /tmp/tmp.zHKtsgdluH
  • cleanup
No yara matches
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: .5r3fqt67ew531has4231.mpsl.elfAvira: detected
Source: .5r3fqt67ew531has4231.mpsl.elfVirustotal: Detection: 29%Perma Link
Source: .5r3fqt67ew531has4231.mpsl.elfReversingLabs: Detection: 33%
Source: global trafficTCP traffic: 192.168.2.23:39264 -> 34.249.145.219:443
Source: global trafficTCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global trafficTCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80
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: 34.249.145.219
Source: unknownTCP traffic detected without corresponding DNS query: 34.249.145.219
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: 91.189.91.42
Source: .5r3fqt67ew531has4231.mpsl.elfString found in binary or memory: http://upx.sf.net
Source: unknownNetwork traffic detected: HTTP traffic on port 43928 -> 443
Source: unknownNetwork traffic detected: HTTP traffic on port 39264 -> 443
Source: LOAD without section mappingsProgram segment: 0x400000
Source: classification engineClassification label: mal60.evad.linELF@0/0@0/0

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: /usr/bin/dash (PID: 6336)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.6PR6qfKloa /tmp/tmp.ntQwhcj6AB /tmp/tmp.zHKtsgdluHJump to behavior
Source: /usr/bin/dash (PID: 6337)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.6PR6qfKloa /tmp/tmp.ntQwhcj6AB /tmp/tmp.zHKtsgdluHJump to behavior
Source: .5r3fqt67ew531has4231.mpsl.elfSubmission file: segment LOAD with 7.9673 entropy (max. 8.0)
Source: /tmp/.5r3fqt67ew531has4231.mpsl.elf (PID: 6266)Queries kernel information via 'uname': Jump to behavior
Source: .5r3fqt67ew531has4231.mpsl.elf, 6266.1.00007fffee170000.00007fffee191000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-mipsel/tmp/.5r3fqt67ew531has4231.mpsl.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.mpsl.elf
Source: .5r3fqt67ew531has4231.mpsl.elf, 6266.1.00005606aefee000.00005606af075000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/mipsel
Source: .5r3fqt67ew531has4231.mpsl.elf, 6266.1.00005606aefee000.00005606af075000.rw-.sdmpBinary or memory string: V!/etc/qemu-binfmt/mipsel
Source: .5r3fqt67ew531has4231.mpsl.elf, 6266.1.00007fffee170000.00007fffee191000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 5 (Trace/breakpoint trap) - core dumped
Source: .5r3fqt67ew531has4231.mpsl.elf, 6266.1.00007fffee170000.00007fffee191000.rw-.sdmpBinary or memory string: /usr/bin/qemu-mipsel
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
Encrypted Channel
Exfiltration Over Other Network MediumAbuse Accessibility Features
CredentialsDomainsDefault AccountsScheduled Task/JobBoot or Logon Initialization ScriptsBoot or Logon Initialization Scripts1
File Deletion
LSASS 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: 1644196 Sample: .5r3fqt67ew531has4231.mpsl.elf Startdate: 20/03/2025 Architecture: LINUX Score: 60 12 109.202.202.202, 80 INIT7CH Switzerland 2->12 14 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->14 16 34.249.145.219, 443 AMAZON-02US United States 2->16 18 Antivirus / Scanner detection for submitted sample 2->18 20 Multi AV Scanner detection for submitted file 2->20 22 Sample is packed with UPX 2->22 6 dash rm 2->6         started        8 dash rm 2->8         started        10 .5r3fqt67ew531has4231.mpsl.elf 2->10         started        signatures3 process4
SourceDetectionScannerLabelLink
.5r3fqt67ew531has4231.mpsl.elf30%VirustotalBrowse
.5r3fqt67ew531has4231.mpsl.elf33%ReversingLabsLinux.Trojan.Mirai
.5r3fqt67ew531has4231.mpsl.elf100%AviraEXP/ELF.Agent.M.28
No Antivirus matches
No Antivirus matches
No Antivirus matches

Download Network PCAP: filteredfull

No contacted domains info
NameSourceMaliciousAntivirus DetectionReputation
http://upx.sf.net.5r3fqt67ew531has4231.mpsl.elffalse
    high
    • 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
    91.189.91.42
    unknownUnited Kingdom
    41231CANONICAL-ASGBfalse
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                                            No context
                                            No context
                                            No created / dropped files found
                                            File type:ELF 32-bit LSB executable, MIPS, MIPS-I version 1 (SYSV), statically linked, no section header
                                            Entropy (8bit):7.965670559694343
                                            TrID:
                                            • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                                            File name:.5r3fqt67ew531has4231.mpsl.elf
                                            File size:63'688 bytes
                                            MD5:77e965c143f7facd4218e21fbe6f3e40
                                            SHA1:c517fe76b77555be14468de40d96e5c2859e989d
                                            SHA256:97fd6ed860813fdeb82b5af875ea51057f66b372d624f5c6c53803acf3c99d68
                                            SHA512:9c82d6622a7ea23970aaab395213c933e80113cbb90d54564b27e1692f0980e94cd6e0a3fc49f12885bc0f086072db9b6f5364badcc1d16ee9e5fd93812dbba4
                                            SSDEEP:1536:TbixTuayMZOYLIGucCZvvm3AEJKWN7QMT:T2uayEIvZAAiKWN7QMT
                                            TLSH:7A5302DCC5E8A593E8BE497781283B24BE62E2C6661B4F8D734C6AD4D635807F35DC20
                                            File Content Preview:.ELF......................@.4...........4. ...(...............@...@...........................A...A......x.............gUPX!.........2...2......U..........?.E.h;....#......b.L#=Mc.........^.....E_.g.}9.Z.6dw....".V50.H..Y..a..G..Y..U"t8Ql...9.............

                                            ELF header

                                            Class:ELF32
                                            Data:2's complement, little 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:0x40e380
                                            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
                                            LOAD0x00x4000000x4000000xf78d0xf78d7.96730x5R E0x10000
                                            LOAD0x00x4100000x4100000x00x678900.00000x6RW 0x10000

                                            Download Network PCAP: filteredfull

                                            • Total Packets: 8
                                            • 443 (HTTPS)
                                            • 80 (HTTP)
                                            TimestampSource PortDest PortSource IPDest IP
                                            Mar 20, 2025 12:50:38.893625021 CET39264443192.168.2.2334.249.145.219
                                            Mar 20, 2025 12:50:40.621243000 CET43928443192.168.2.2391.189.91.42
                                            Mar 20, 2025 12:50:42.929003954 CET39264443192.168.2.2334.249.145.219
                                            Mar 20, 2025 12:50:51.115864038 CET39264443192.168.2.2334.249.145.219
                                            Mar 20, 2025 12:50:59.818820000 CET4251680192.168.2.23109.202.202.202
                                            Mar 20, 2025 12:51:01.866488934 CET43928443192.168.2.2391.189.91.42
                                            Mar 20, 2025 12:51:07.241849899 CET39264443192.168.2.2334.249.145.219
                                            Mar 20, 2025 12:51:42.821059942 CET43928443192.168.2.2391.189.91.42

                                            System Behavior

                                            Start time (UTC):11:50:38
                                            Start date (UTC):20/03/2025
                                            Path:/tmp/.5r3fqt67ew531has4231.mpsl.elf
                                            Arguments:/tmp/.5r3fqt67ew531has4231.mpsl.elf
                                            File size:5773336 bytes
                                            MD5 hash:0d6f61f82cf2f781c6eb0661071d42d9

                                            Start time (UTC):11:51:34
                                            Start date (UTC):20/03/2025
                                            Path:/usr/bin/dash
                                            Arguments:-
                                            File size:129816 bytes
                                            MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                            Start time (UTC):11:51:34
                                            Start date (UTC):20/03/2025
                                            Path:/usr/bin/rm
                                            Arguments:rm -f /tmp/tmp.6PR6qfKloa /tmp/tmp.ntQwhcj6AB /tmp/tmp.zHKtsgdluH
                                            File size:72056 bytes
                                            MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b

                                            Start time (UTC):11:51:34
                                            Start date (UTC):20/03/2025
                                            Path:/usr/bin/dash
                                            Arguments:-
                                            File size:129816 bytes
                                            MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                            Start time (UTC):11:51:34
                                            Start date (UTC):20/03/2025
                                            Path:/usr/bin/rm
                                            Arguments:rm -f /tmp/tmp.6PR6qfKloa /tmp/tmp.ntQwhcj6AB /tmp/tmp.zHKtsgdluH
                                            File size:72056 bytes
                                            MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b