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Linux Analysis Report
.i.elf

Overview

General Information

Sample name:.i.elf
Analysis ID:1643049
MD5:6068d2769d970f3c04556bb3cbf83de6
SHA1:1f89a23d2be9c0b0ced9b01136c79334e6d83acb
SHA256:f653f02fe7da0ce84e7d1a27816e695a7cf700fc2f31b7e2e4acf98026af0bb0
Tags:elfuser-abuse_ch
Infos:

Detection

Score:48
Range:0 - 100

Signatures

Multi AV Scanner detection for submitted file
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

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious
Joe Sandbox version:42.0.0 Malachite
Analysis ID:1643049
Start date and time:2025-03-19 13:42:49 +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:.i.elf
Detection:MAL
Classification:mal48.linELF@0/0@0/0
Command:/tmp/.i.elf
PID:6240
Exit Code:139
Exit Code Info:SIGSEGV (11) Segmentation fault invalid memory reference
Killed:False
Standard Output:

Standard Error:qemu: uncaught target signal 11 (Segmentation fault) - core dumped
  • system is lnxubuntu20
  • .i.elf (PID: 6240, Parent: 6164, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/.i.elf
  • cleanup
No yara matches
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: .i.elfVirustotal: Detection: 28%Perma Link
Source: .i.elfReversingLabs: Detection: 41%
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: 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: 0x10000
Source: classification engineClassification label: mal48.linELF@0/0@0/0
Source: .i.elfSubmission file: segment LOAD with 7.9833 entropy (max. 8.0)
Source: /tmp/.i.elf (PID: 6240)Queries kernel information via 'uname': Jump to behavior
Source: .i.elf, 6240.1.000055e1e461b000.000055e1e4749000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/arm
Source: .i.elf, 6240.1.00007ffd2ad60000.00007ffd2ad81000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-arm/tmp/.i.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/.i.elf
Source: .i.elf, 6240.1.000055e1e461b000.000055e1e4749000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: .i.elf, 6240.1.00007ffd2ad60000.00007ffd2ad81000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
Source: .i.elf, 6240.1.00007ffd2ad60000.00007ffd2ad81000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
Gather Victim Identity InformationAcquire InfrastructureValid AccountsWindows Management InstrumentationPath InterceptionPath Interception1
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
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: 1643049 Sample: .i.elf Startdate: 19/03/2025 Architecture: LINUX Score: 48 8 109.202.202.202, 80 INIT7CH Switzerland 2->8 10 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->10 12 91.189.91.43, 443 CANONICAL-ASGB United Kingdom 2->12 14 Multi AV Scanner detection for submitted file 2->14 6 .i.elf 2->6         started        signatures3 process4
SourceDetectionScannerLabelLink
.i.elf29%VirustotalBrowse
.i.elf41%ReversingLabsLinux.Backdoor.Mirai
No Antivirus matches
No Antivirus matches
No Antivirus matches

Download Network PCAP: filteredfull

No contacted domains info
  • 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
MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
109.202.202.202kpLwzBouH4.elfGet hashmaliciousUnknownBrowse
  • ch.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox_92.0%2bbuild3-0ubuntu0.20.04.1_amd64.deb
91.189.91.43na.elfGet hashmaliciousPrometeiBrowse
    na.elfGet hashmaliciousPrometeiBrowse
      na.elfGet hashmaliciousPrometeiBrowse
        na.elfGet hashmaliciousPrometeiBrowse
          na.elfGet hashmaliciousPrometeiBrowse
            na.elfGet hashmaliciousPrometeiBrowse
              na.elfGet hashmaliciousPrometeiBrowse
                na.elfGet hashmaliciousPrometeiBrowse
                  na.elfGet hashmaliciousPrometeiBrowse
                    na.elfGet hashmaliciousPrometeiBrowse
                      91.189.91.42na.elfGet hashmaliciousPrometeiBrowse
                        na.elfGet hashmaliciousPrometeiBrowse
                          na.elfGet hashmaliciousPrometeiBrowse
                            na.elfGet hashmaliciousPrometeiBrowse
                              na.elfGet hashmaliciousPrometeiBrowse
                                na.elfGet hashmaliciousPrometeiBrowse
                                  na.elfGet hashmaliciousPrometeiBrowse
                                    na.elfGet hashmaliciousPrometeiBrowse
                                      na.elfGet hashmaliciousPrometeiBrowse
                                        na.elfGet hashmaliciousPrometeiBrowse
                                          No context
                                          MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
                                          CANONICAL-ASGBna.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
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 91.189.91.42
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 91.189.91.42
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 91.189.91.42
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 91.189.91.42
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 91.189.91.42
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 185.125.190.26
                                          CANONICAL-ASGBna.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
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 91.189.91.42
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 91.189.91.42
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 91.189.91.42
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 91.189.91.42
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 91.189.91.42
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 185.125.190.26
                                          INIT7CHna.elfGet hashmaliciousPrometeiBrowse
                                          • 109.202.202.202
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 109.202.202.202
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 109.202.202.202
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 109.202.202.202
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 109.202.202.202
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 109.202.202.202
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 109.202.202.202
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 109.202.202.202
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 109.202.202.202
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 109.202.202.202
                                          No context
                                          No context
                                          No created / dropped files found
                                          File type:ELF 32-bit LSB executable, ARM, EABI5 version 1 (GNU/Linux), statically linked, no section header
                                          Entropy (8bit):7.983343841912532
                                          TrID:
                                          • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                                          File name:.i.elf
                                          File size:16'000 bytes
                                          MD5:6068d2769d970f3c04556bb3cbf83de6
                                          SHA1:1f89a23d2be9c0b0ced9b01136c79334e6d83acb
                                          SHA256:f653f02fe7da0ce84e7d1a27816e695a7cf700fc2f31b7e2e4acf98026af0bb0
                                          SHA512:593a27355d546c57ab036942bdce1fb401ea21fb7d7857ef4ced5c321059221a341c0ef5a8bfd7d6beb835542200444120779d67df3cb272317f9e98e75c634f
                                          SSDEEP:192:KXs4Lyi82so2yzXtb1MQFGKVeKJRT6XXmBrdIQG2tdaOqGM5V6LsDdvrY6jdE7FG:yb2eX3zAKuiNPZRwwqdvrrduMF
                                          TLSH:0372D0A223823544E231CE793BEC340FD06C99237179A7146D95D24AD92BB245CB9FFE
                                          File Content Preview:.ELF..............(......'..4...........4. ...(......................7...7.............................................c........................i..........?.E.h;....#..$..O.%.......y.A.U"......-R..e....<l>=).!...O........u.....`o..*ziy"......R..~@....x2'_

                                          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:0x22718
                                          Flags:0x5000202
                                          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
                                          LOAD0x00x100000x100000x137e90x137e97.98330x5R E0x10000
                                          LOAD0x6fc0x506fc0x506fc0x00x00.00000x6RW 0x10000

                                          Download Network PCAP: filteredfull

                                          • Total Packets: 7
                                          • 443 (HTTPS)
                                          • 80 (HTTP)
                                          TimestampSource PortDest PortSource IPDest IP
                                          Mar 19, 2025 13:43:43.222413063 CET43928443192.168.2.2391.189.91.42
                                          Mar 19, 2025 13:43:48.853755951 CET42836443192.168.2.2391.189.91.43
                                          Mar 19, 2025 13:43:49.621644974 CET4251680192.168.2.23109.202.202.202
                                          Mar 19, 2025 13:44:03.699687004 CET43928443192.168.2.2391.189.91.42
                                          Mar 19, 2025 13:44:15.986031055 CET42836443192.168.2.2391.189.91.43
                                          Mar 19, 2025 13:44:20.081434011 CET4251680192.168.2.23109.202.202.202
                                          Mar 19, 2025 13:44:44.654058933 CET43928443192.168.2.2391.189.91.42

                                          System Behavior

                                          Start time (UTC):12:43:42
                                          Start date (UTC):19/03/2025
                                          Path:/tmp/.i.elf
                                          Arguments:/tmp/.i.elf
                                          File size:4956856 bytes
                                          MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1