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Linux Analysis Report
.i.elf

Overview

General Information

Sample name:.i.elf
Analysis ID:1649793
MD5:89706fdd65f41cb00448a91938fbaf60
SHA1:22f5cc1fb45ad2649e594cf932277af150d7d7f4
SHA256:1e9b907bf48fe9bcb871ce1f097dcce09fb2f81408c136e7562f5bc18e1df5ab
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:1649793
Start date and time:2025-03-27 05:13:21 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 27s
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:6223
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: 6223, Parent: 6137, MD5: 0083f1f0e77be34ad27f849842bbb00c) 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.elfReversingLabs: Detection: 44%
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: 0x100000
Source: classification engineClassification label: mal48.linELF@0/0@0/0
Source: .i.elfSubmission file: segment LOAD with 7.9944 entropy (max. 8.0)
Source: /tmp/.i.elf (PID: 6223)Queries kernel information via 'uname': Jump to behavior
Source: .i.elf, 6223.1.000055bdec425000.000055bdec4ac000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/mips
Source: .i.elf, 6223.1.000055bdec425000.000055bdec4ac000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/mips
Source: .i.elf, 6223.1.00007ffe8dac5000.00007ffe8dae6000.rw-.sdmpBinary or memory string: /usr/bin/qemu-mips
Source: .i.elf, 6223.1.00007ffe8dac5000.00007ffe8dae6000.rw-.sdmpBinary or memory string: Yx86_64/usr/bin/qemu-mips/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, 6223.1.00007ffe8dac5000.00007ffe8dae6000.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: 1649793 Sample: .i.elf Startdate: 27/03/2025 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.elf44%ReversingLabsLinux.Infostealer.Berbew
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
                  .i.elfGet hashmaliciousUnknownBrowse
                    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
                                      .i.elfGet hashmaliciousUnknownBrowse
                                        na.elfGet hashmaliciousPrometeiBrowse
                                          No context
                                          MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
                                          CANONICAL-ASGBna.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
                                          .i.elfGet hashmaliciousUnknownBrowse
                                          • 91.189.91.42
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 91.189.91.42
                                          CANONICAL-ASGBna.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
                                          .i.elfGet hashmaliciousUnknownBrowse
                                          • 91.189.91.42
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 91.189.91.42
                                          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
                                          .i.elfGet hashmaliciousUnknownBrowse
                                          • 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 MSB executable, MIPS, MIPS-I version 1 (SYSV), statically linked, no section header
                                          Entropy (8bit):7.994355016209888
                                          TrID:
                                          • ELF Executable and Linkable format (Linux) (4029/14) 50.16%
                                          • ELF Executable and Linkable format (generic) (4004/1) 49.84%
                                          File name:.i.elf
                                          File size:42'980 bytes
                                          MD5:89706fdd65f41cb00448a91938fbaf60
                                          SHA1:22f5cc1fb45ad2649e594cf932277af150d7d7f4
                                          SHA256:1e9b907bf48fe9bcb871ce1f097dcce09fb2f81408c136e7562f5bc18e1df5ab
                                          SHA512:3b226e83224198c7d1e3493bee5f841b9a7c270f3591e93e2a4b2c720aa769c2bb4daf5ddf1ccf59afa5002cd737f7e015c0532697bc8793061b7fa5713681e8
                                          SSDEEP:768:YTYIDfYG6ZmewZ59+Nw1qsREH20j7UNqVwi7M8ghFM04ZTzi:yYI0ARqw1qAEW67UIWi7M8gme
                                          TLSH:7313028332953F73D5218CF5D7FCAFCA618A7D94AFDA181B68113A99B07135C28C981A
                                          File Content Preview:.ELF....................../....4.........4. ...(......................Bd..Bd.................G...G.................................................^.......?.E.h4...@b..) ..]..0...a.t<..mc.zy/..>..!c...gM\<j..W`xD'..}...\..].j.L.u...S..i...../..F...@`..'k.

                                          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:0x112fe8
                                          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
                                          LOAD0x00x1000000x1000000x142640x142647.99440x5R E0x10000
                                          LOAD0xa6c00x47a6c00x47a6c00x00x00.00000x6RW 0x10000

                                          Download Network PCAP: filteredfull

                                          • Total Packets: 7
                                          • 443 (HTTPS)
                                          • 80 (HTTP)
                                          TimestampSource PortDest PortSource IPDest IP
                                          Mar 27, 2025 05:14:03.327892065 CET43928443192.168.2.2391.189.91.42
                                          Mar 27, 2025 05:14:08.959198952 CET42836443192.168.2.2391.189.91.43
                                          Mar 27, 2025 05:14:10.495054007 CET4251680192.168.2.23109.202.202.202
                                          Mar 27, 2025 05:14:24.829821110 CET43928443192.168.2.2391.189.91.42
                                          Mar 27, 2025 05:14:35.067574024 CET42836443192.168.2.2391.189.91.43
                                          Mar 27, 2025 05:14:41.210832119 CET4251680192.168.2.23109.202.202.202
                                          Mar 27, 2025 05:15:05.784137011 CET43928443192.168.2.2391.189.91.42

                                          System Behavior

                                          Start time (UTC):04:14:02
                                          Start date (UTC):27/03/2025
                                          Path:/tmp/.i.elf
                                          Arguments:/tmp/.i.elf
                                          File size:5777432 bytes
                                          MD5 hash:0083f1f0e77be34ad27f849842bbb00c