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Linux Analysis Report
ub8ehJSePAfc9FYqZIT6.arm5.elf

Overview

General Information

Sample name:ub8ehJSePAfc9FYqZIT6.arm5.elf
Analysis ID:1591916
MD5:4e8096de700b9e055fa9eb570381481b
SHA1:f1570ef12bb229b3c866200f3ea3db7faa66eb9c
SHA256:dcedb44d8380f90a1682ecac0f33682be1971ec68a12cbbc0b7f1e47038f0322
Tags:elfuser-abuse_ch
Infos:

Detection

Score:52
Range:0 - 100
Whitelisted:false

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
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

Joe Sandbox version:42.0.0 Malachite
Analysis ID:1591916
Start date and time:2025-01-15 15:55:40 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 35s
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:ub8ehJSePAfc9FYqZIT6.arm5.elf
Detection:MAL
Classification:mal52.evad.linELF@0/0@0/0
Command:/tmp/ub8ehJSePAfc9FYqZIT6.arm5.elf
PID:6237
Exit Code:127
Exit Code Info:
Killed:False
Standard Output:

Standard Error:
  • 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: ub8ehJSePAfc9FYqZIT6.arm5.elfVirustotal: Detection: 9%Perma Link
Source: ub8ehJSePAfc9FYqZIT6.arm5.elfReversingLabs: Detection: 21%
Source: global trafficTCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global trafficTCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global trafficTCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80
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: 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: ub8ehJSePAfc9FYqZIT6.arm5.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 42836 -> 443
Source: LOAD without section mappingsProgram segment: 0x8000
Source: classification engineClassification label: mal52.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 3.94 Copyright (C) 1996-2017 the UPX Team. All Rights Reserved. $
Source: ub8ehJSePAfc9FYqZIT6.arm5.elfSubmission file: segment LOAD with 7.6977 entropy (max. 8.0)
Source: /tmp/ub8ehJSePAfc9FYqZIT6.arm5.elf (PID: 6237)Queries kernel information via 'uname': Jump to behavior
Source: ub8ehJSePAfc9FYqZIT6.arm5.elf, 6237.1.0000565218a62000.0000565218c50000.rw-.sdmpBinary or memory string: RV!/etc/qemu-binfmt/arm
Source: ub8ehJSePAfc9FYqZIT6.arm5.elf, 6237.1.00007ffd17ee4000.00007ffd17f05000.rw-.sdmpBinary or memory string: ^x86_64/usr/bin/qemu-arm/tmp/ub8ehJSePAfc9FYqZIT6.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/ub8ehJSePAfc9FYqZIT6.arm5.elf
Source: ub8ehJSePAfc9FYqZIT6.arm5.elf, 6237.1.0000565218a62000.0000565218c50000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: ub8ehJSePAfc9FYqZIT6.arm5.elf, 6237.1.00007ffd17ee4000.00007ffd17f05000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
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 ScriptsRootkitLSASS MemoryApplication Window DiscoveryRemote Desktop ProtocolData from Removable Media1
Application Layer Protocol
Exfiltration Over BluetoothNetwork Denial of Service
No configs have been found
SourceDetectionScannerLabelLink
ub8ehJSePAfc9FYqZIT6.arm5.elf10%VirustotalBrowse
ub8ehJSePAfc9FYqZIT6.arm5.elf21%ReversingLabsLinux.Trojan.Mirai
No Antivirus matches
No Antivirus matches
No Antivirus matches
No contacted domains info
NameSourceMaliciousAntivirus DetectionReputation
http://upx.sf.netub8ehJSePAfc9FYqZIT6.arm5.elffalse
    high
    • No. of IPs < 25%
    • 25% < No. of IPs < 50%
    • 50% < No. of IPs < 75%
    • 75% < No. of IPs
    IPDomainCountryFlagASNASN NameMalicious
    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 context
                                            No context
                                            No created / dropped files found
                                            File type:ELF 32-bit LSB executable, ARM, EABI4 version 1 (GNU/Linux), statically linked, no section header
                                            Entropy (8bit):7.686251895820273
                                            TrID:
                                            • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                                            File name:ub8ehJSePAfc9FYqZIT6.arm5.elf
                                            File size:12'116 bytes
                                            MD5:4e8096de700b9e055fa9eb570381481b
                                            SHA1:f1570ef12bb229b3c866200f3ea3db7faa66eb9c
                                            SHA256:dcedb44d8380f90a1682ecac0f33682be1971ec68a12cbbc0b7f1e47038f0322
                                            SHA512:efad595b768ffe95f127ce677d1ccd916f56ebca2ed12466891404b60818e591e2ac94dfa247142f924a983eeb36078cd38cc80c4f82b9385c76c776c354edb4
                                            SSDEEP:192:2R3xumrNhJBIg74Uw7mBzz044y/J4MszQmb/OxCvrTyWhXK7CpAcpW191PoM5B:2R3xfDJpLB044UJ/szJcoPyWha7CprpW
                                            TLSH:CA42C004E389E093C2934EF39D121ECE8C8FE96CF16D0517E6A30595B03996B7A5C8C9
                                            File Content Preview:.ELF..............(.........4...........4. ...(......................-...-...............N...N...N..................Q.td..............................SdUPX!.........O...O......v.........ELF.d.?..(.~...[4...L..... ........{.......s.M..4...y..9.........Jo?{

                                            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 - Linux
                                            ABI Version:0
                                            Entry Point Address:0xa410
                                            Flags:0x4000002
                                            ELF Header Size:52
                                            Program Header Offset:52
                                            Program Header Size:32
                                            Number of Program Headers:3
                                            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
                                            LOAD0x00x80000x80000x2d8b0x2d8b7.69770x5R E0x8000
                                            LOAD0x4e940x14e940x14e940x00x00.00000x6RW 0x8000
                                            GNU_STACK0x00x00x00x00x00.00000x7RWE0x4
                                            TimestampSource PortDest PortSource IPDest IP
                                            Jan 15, 2025 15:56:26.401731014 CET43928443192.168.2.2391.189.91.42
                                            Jan 15, 2025 15:56:32.033005953 CET42836443192.168.2.2391.189.91.43
                                            Jan 15, 2025 15:56:33.312722921 CET4251680192.168.2.23109.202.202.202
                                            Jan 15, 2025 15:56:46.366867065 CET43928443192.168.2.2391.189.91.42
                                            Jan 15, 2025 15:56:58.653188944 CET42836443192.168.2.2391.189.91.43
                                            Jan 15, 2025 15:57:02.748558998 CET4251680192.168.2.23109.202.202.202
                                            Jan 15, 2025 15:57:27.321106911 CET43928443192.168.2.2391.189.91.42

                                            System Behavior

                                            Start time (UTC):14:56:24
                                            Start date (UTC):15/01/2025
                                            Path:/tmp/ub8ehJSePAfc9FYqZIT6.arm5.elf
                                            Arguments:/tmp/ub8ehJSePAfc9FYqZIT6.arm5.elf
                                            File size:4956856 bytes
                                            MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1