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Linux Analysis Report
i.elf

Overview

General Information

Sample name:i.elf
Analysis ID:1581844
MD5:384751ac6fcc147f9772baf912f980e7
SHA1:6ad72abf15863bf4e6c126e559934230e961c08b
SHA256:992d48d2cf51f5c699304f4df94e969fc5149bf2b7201002049ebd8ed828be6b
Tags:elfuser-abuse_ch
Infos:

Detection

Score:56
Range:0 - 100
Whitelisted:false

Signatures

Antivirus / Scanner detection for submitted sample
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:41.0.0 Charoite
Analysis ID:1581844
Start date and time:2024-12-29 04:42:04 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 30s
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:mal56.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: 6163, 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.elfAvira: detected
Source: i.elfVirustotal: Detection: 49%Perma Link
Source: i.elfReversingLabs: Detection: 63%
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: mal56.linELF@0/0@0/0
Source: i.elfSubmission file: segment LOAD with 7.9953 entropy (max. 8.0)
Source: /tmp/i.elf (PID: 6240)Queries kernel information via 'uname': Jump to behavior
Source: i.elf, 6240.1.00007ffc87390000.00007ffc873b1000.rw-.sdmpBinary or memory string: x86_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, 6240.1.0000562d6b1a9000.0000562d6b230000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/mips
Source: i.elf, 6240.1.0000562d6b1a9000.0000562d6b230000.rw-.sdmpBinary or memory string: k-V!/etc/qemu-binfmt/mips
Source: i.elf, 6240.1.00007ffc87390000.00007ffc873b1000.rw-.sdmpBinary or memory string: /usr/bin/qemu-mips
Source: i.elf, 6240.1.00007ffc87390000.00007ffc873b1000.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: 1581844 Sample: i.elf Startdate: 29/12/2024 Architecture: LINUX Score: 56 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 Antivirus / Scanner detection for submitted sample 2->14 16 Multi AV Scanner detection for submitted file 2->16 6 i.elf 2->6         started        signatures3 process4
SourceDetectionScannerLabelLink
i.elf49%VirustotalBrowse
i.elf63%ReversingLabsLinux.Infostealer.Berbew
i.elf100%AviraLINUX/AVI.Agent.rtyvn
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
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                                          • 91.189.91.42
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                                          • 91.189.91.42
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                                          • 91.189.91.42
                                          db0fa4b8db0333367e9bda3ab68b8042.ppc.elfGet hashmaliciousUnknownBrowse
                                          • 91.189.91.42
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                                          • 91.189.91.42
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                                          • 91.189.91.42
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                                          • 91.189.91.42
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                                          • 91.189.91.42
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                                          • 91.189.91.42
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                                          • 109.202.202.202
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                                          • 109.202.202.202
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                                          • 109.202.202.202
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                                          • 109.202.202.202
                                          db0fa4b8db0333367e9bda3ab68b8042.ppc.elfGet hashmaliciousUnknownBrowse
                                          • 109.202.202.202
                                          Aqua.mpsl.elfGet hashmaliciousUnknownBrowse
                                          • 109.202.202.202
                                          Aqua.ppc.elfGet hashmaliciousUnknownBrowse
                                          • 109.202.202.202
                                          Aqua.arm5.elfGet hashmaliciousUnknownBrowse
                                          • 109.202.202.202
                                          ppc.elfGet hashmaliciousUnknownBrowse
                                          • 109.202.202.202
                                          Aqua.arm6.elfGet hashmaliciousUnknownBrowse
                                          • 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):7.995265371739385
                                          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:50'246 bytes
                                          MD5:384751ac6fcc147f9772baf912f980e7
                                          SHA1:6ad72abf15863bf4e6c126e559934230e961c08b
                                          SHA256:992d48d2cf51f5c699304f4df94e969fc5149bf2b7201002049ebd8ed828be6b
                                          SHA512:1a5a2687a12b2e78b57e811c35f7774b104cfa60b7c75b2d64915a81203a64efc7a8d5592513ef8dbe9729891c2cd829384b13f3b7c9aa5b63d9c9839061647b
                                          SSDEEP:1536:yYI0ARqw1qAEW67UIWi7M8gmfmJo0Wgsz:yYI0ARqw1qAEv7UIFM8oJorFz
                                          TLSH:3433F18623A62FB2D1359DF4A7FCEF85A04A7DA49FE61C0A7C213658B47135C28C8C19
                                          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
                                          LOAD0x00x1000000x1000000x142640x142647.99530x5R E0x10000
                                          LOAD0xa6c00x47a6c00x47a6c00x00x00.00000x6RW 0x10000

                                          Download Network PCAP: filteredfull

                                          • Total Packets: 7
                                          • 443 (HTTPS)
                                          • 80 (HTTP)
                                          TimestampSource PortDest PortSource IPDest IP
                                          Dec 29, 2024 04:42:50.827033043 CET43928443192.168.2.2391.189.91.42
                                          Dec 29, 2024 04:42:56.202409029 CET42836443192.168.2.2391.189.91.43
                                          Dec 29, 2024 04:42:57.482244968 CET4251680192.168.2.23109.202.202.202
                                          Dec 29, 2024 04:43:11.304341078 CET43928443192.168.2.2391.189.91.42
                                          Dec 29, 2024 04:43:23.590648890 CET42836443192.168.2.2391.189.91.43
                                          Dec 29, 2024 04:43:27.686144114 CET4251680192.168.2.23109.202.202.202
                                          Dec 29, 2024 04:43:52.258868933 CET43928443192.168.2.2391.189.91.42

                                          System Behavior

                                          Start time (UTC):03:42:47
                                          Start date (UTC):29/12/2024
                                          Path:/tmp/i.elf
                                          Arguments:/tmp/i.elf
                                          File size:5777432 bytes
                                          MD5 hash:0083f1f0e77be34ad27f849842bbb00c