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Linux Analysis Report
ub8ehJSePAfc9FYqZIT6.mpsl.elf

Overview

General Information

Sample name:ub8ehJSePAfc9FYqZIT6.mpsl.elf
Analysis ID:1591919
MD5:08234ec1fab991b0c3763a6b4f73cab0
SHA1:6f22b383ee3ca5e50f089224ce8d17f13c14caf8
SHA256:9ddb0b6777a2b71e2faa2c63ec596fbedc1adfa55acc9bea30d2e1b5e92caeb1
Tags:elfuser-abuse_ch
Infos:

Detection

Score:60
Range:0 - 100
Whitelisted:false

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

Joe Sandbox version:42.0.0 Malachite
Analysis ID:1591919
Start date and time:2025-01-15 15:59:35 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 28s
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.mpsl.elf
Detection:MAL
Classification:mal60.evad.linELF@0/0@0/0
Command:/tmp/ub8ehJSePAfc9FYqZIT6.mpsl.elf
PID:6228
Exit Code:1
Exit Code Info:
Killed:False
Standard Output:

Standard Error:
  • system is lnxubuntu20
  • dash New Fork (PID: 6207, Parent: 4331)
  • rm (PID: 6207, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.snDtBkFjpZ /tmp/tmp.mO89Xbc6c1 /tmp/tmp.em5qq4gUlD
  • dash New Fork (PID: 6208, Parent: 4331)
  • rm (PID: 6208, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.snDtBkFjpZ /tmp/tmp.mO89Xbc6c1 /tmp/tmp.em5qq4gUlD
  • cleanup
No yara matches
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: ub8ehJSePAfc9FYqZIT6.mpsl.elfAvira: detected
Source: ub8ehJSePAfc9FYqZIT6.mpsl.elfVirustotal: Detection: 44%Perma Link
Source: ub8ehJSePAfc9FYqZIT6.mpsl.elfReversingLabs: Detection: 39%
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.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 42836 -> 443
Source: LOAD without section mappingsProgram segment: 0x100000
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 3.94 Copyright (C) 1996-2017 the UPX Team. All Rights Reserved. $
Source: /usr/bin/dash (PID: 6207)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.snDtBkFjpZ /tmp/tmp.mO89Xbc6c1 /tmp/tmp.em5qq4gUlDJump to behavior
Source: /usr/bin/dash (PID: 6208)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.snDtBkFjpZ /tmp/tmp.mO89Xbc6c1 /tmp/tmp.em5qq4gUlDJump to behavior
Source: ub8ehJSePAfc9FYqZIT6.mpsl.elfSubmission file: segment LOAD with 7.8493 entropy (max. 8.0)
Source: /tmp/ub8ehJSePAfc9FYqZIT6.mpsl.elf (PID: 6228)Queries kernel information via 'uname': Jump to behavior
Source: ub8ehJSePAfc9FYqZIT6.mpsl.elf, 6228.1.000055b68ed54000.000055b68edfc000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/mipsel
Source: ub8ehJSePAfc9FYqZIT6.mpsl.elf, 6228.1.000055b68ed54000.000055b68edfc000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/mipsel
Source: ub8ehJSePAfc9FYqZIT6.mpsl.elf, 6228.1.00007ffcc4eff000.00007ffcc4f20000.rw-.sdmpBinary or memory string: /usr/bin/qemu-mipsel
Source: ub8ehJSePAfc9FYqZIT6.mpsl.elf, 6228.1.00007ffcc4eff000.00007ffcc4f20000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-mipsel/tmp/ub8ehJSePAfc9FYqZIT6.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/ub8ehJSePAfc9FYqZIT6.mpsl.elf
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
SourceDetectionScannerLabelLink
ub8ehJSePAfc9FYqZIT6.mpsl.elf44%VirustotalBrowse
ub8ehJSePAfc9FYqZIT6.mpsl.elf39%ReversingLabsLinux.Trojan.Mirai
ub8ehJSePAfc9FYqZIT6.mpsl.elf100%AviraEXP/ELF.Agent.M.28
No Antivirus matches
No Antivirus matches
No Antivirus matches
No contacted domains info
NameSourceMaliciousAntivirus DetectionReputation
http://upx.sf.netub8ehJSePAfc9FYqZIT6.mpsl.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, MIPS, MIPS-I version 1 (SYSV), statically linked, no section header
                                            Entropy (8bit):7.844518976254029
                                            TrID:
                                            • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                                            File name:ub8ehJSePAfc9FYqZIT6.mpsl.elf
                                            File size:22'916 bytes
                                            MD5:08234ec1fab991b0c3763a6b4f73cab0
                                            SHA1:6f22b383ee3ca5e50f089224ce8d17f13c14caf8
                                            SHA256:9ddb0b6777a2b71e2faa2c63ec596fbedc1adfa55acc9bea30d2e1b5e92caeb1
                                            SHA512:f00748331b52ceda74d0961ca48bd0c57aeaa0a2e3391321fefcc68a1c9541eeca24b2a9a793648d185a44c90ce45f21b2c67250a381842390762fe19a052703
                                            SSDEEP:384:5vOFxqEIQqIedKKZ99UGJ3UZdo2/fwlj3tWRmYi4Fr3uORYdzRWGVCz0Nv9aI:ArpXq3McUjfXfwl8kYHJuOyd9WO
                                            TLSH:2DA2C04EE55474CACFAD483892ED1BE2CC56B4D2312F87953705CC8C3A6974B39981F6
                                            File Content Preview:.ELF.................... E..4...........4. ...(.....................]X..]X...............;...;B..;B.................c.:4UPX!d........5...5......U..........?.E.h;....#......b.L#9b....N.5.K..N..c.Q.4...Gk.....x} gQg...).t.....K.W0.GI.g.....-..9B.........p?.

                                            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:0x104520
                                            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
                                            LOAD0x00x1000000x1000000x585d0x585d7.84930x5R E0x10000
                                            LOAD0x3b940x423b940x423b940x00x00.00000x6RW 0x10000
                                            TimestampSource PortDest PortSource IPDest IP
                                            Jan 15, 2025 16:00:15.674249887 CET43928443192.168.2.2391.189.91.42
                                            Jan 15, 2025 16:00:21.049484015 CET42836443192.168.2.2391.189.91.43
                                            Jan 15, 2025 16:00:22.585297108 CET4251680192.168.2.23109.202.202.202
                                            Jan 15, 2025 16:00:35.639494896 CET43928443192.168.2.2391.189.91.42
                                            Jan 15, 2025 16:00:47.925875902 CET42836443192.168.2.2391.189.91.43
                                            Jan 15, 2025 16:00:52.021286964 CET4251680192.168.2.23109.202.202.202
                                            Jan 15, 2025 16:01:16.593781948 CET43928443192.168.2.2391.189.91.42

                                            System Behavior

                                            Start time (UTC):15:00:05
                                            Start date (UTC):15/01/2025
                                            Path:/usr/bin/dash
                                            Arguments:-
                                            File size:129816 bytes
                                            MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                            Start time (UTC):15:00:05
                                            Start date (UTC):15/01/2025
                                            Path:/usr/bin/rm
                                            Arguments:rm -f /tmp/tmp.snDtBkFjpZ /tmp/tmp.mO89Xbc6c1 /tmp/tmp.em5qq4gUlD
                                            File size:72056 bytes
                                            MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b

                                            Start time (UTC):15:00:05
                                            Start date (UTC):15/01/2025
                                            Path:/usr/bin/dash
                                            Arguments:-
                                            File size:129816 bytes
                                            MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                            Start time (UTC):15:00:05
                                            Start date (UTC):15/01/2025
                                            Path:/usr/bin/rm
                                            Arguments:rm -f /tmp/tmp.snDtBkFjpZ /tmp/tmp.mO89Xbc6c1 /tmp/tmp.em5qq4gUlD
                                            File size:72056 bytes
                                            MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b

                                            Start time (UTC):15:00:16
                                            Start date (UTC):15/01/2025
                                            Path:/tmp/ub8ehJSePAfc9FYqZIT6.mpsl.elf
                                            Arguments:/tmp/ub8ehJSePAfc9FYqZIT6.mpsl.elf
                                            File size:5773336 bytes
                                            MD5 hash:0d6f61f82cf2f781c6eb0661071d42d9