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Linux Analysis Report
.i.elf

Overview

General Information

Sample name:.i.elf
Analysis ID:1649765
MD5:27fddfa47e7e06845365f1d888604487
SHA1:8204cb3110fc72bd0e68da37021e9d6c44902273
SHA256:0a0b0174613e88ce1a0e8c84dba170c2e1151621bf56073ed0139f9f77e634c8
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:1649765
Start date and time:2025-03-27 03:44:19 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 36s
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:6234
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: 6234, Parent: 6156, 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: 31%Perma Link
Source: .i.elfReversingLabs: Detection: 47%
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 7.9737 entropy (max. 8.0)
Source: /tmp/.i.elf (PID: 6234)Queries kernel information via 'uname': Jump to behavior
Source: .i.elf, 6234.1.00007ffdfffd6000.00007ffdffff7000.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, 6234.1.0000562175931000.0000562175a5f000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: .i.elf, 6234.1.00007ffdfffd6000.00007ffdffff7000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
Source: .i.elf, 6234.1.00007ffdfffd6000.00007ffdffff7000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Source: .i.elf, 6234.1.0000562175931000.0000562175a5f000.rw-.sdmpBinary or memory string: u!V!/etc/qemu-binfmt/arm
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: 1649765 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.elf32%VirustotalBrowse
.i.elf47%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
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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
                                          morte.mips.elfGet hashmaliciousUnknownBrowse
                                          • 109.202.202.202
                                          morte.x64.elfGet hashmaliciousUnknownBrowse
                                          • 109.202.202.202
                                          sshd.elfGet hashmaliciousUnknownBrowse
                                          • 109.202.202.202
                                          morte.sh4.elfGet hashmaliciousUnknownBrowse
                                          • 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):7.9736692367092745
                                          TrID:
                                          • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                                          File name:.i.elf
                                          File size:11'280 bytes
                                          MD5:27fddfa47e7e06845365f1d888604487
                                          SHA1:8204cb3110fc72bd0e68da37021e9d6c44902273
                                          SHA256:0a0b0174613e88ce1a0e8c84dba170c2e1151621bf56073ed0139f9f77e634c8
                                          SHA512:cec2362cbed22a3082e4214fe604cba8b5f35c85bd6b5e98487940de1e27e17c75a96c5fe43956c1ebd388d918b2a8fe4dfab0127c916c142d63bb1283e47b5a
                                          SSDEEP:192:KXs4Lyi82so2yzXtb1MQFGKVeKJRT6XXmBrdIQG2tdaOql:yb2eX3zAKuiNPZS
                                          TLSH:8432D1A21B132356E212FFBD7F8C341FC4AC853270AD491476668647C42E72C0C7E6AE
                                          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
                                          LOAD0x00x100000x100000x137e90x137e97.97370x5R E0x10000
                                          LOAD0x6fc0x506fc0x506fc0x00x00.00000x6RW 0x10000

                                          Download Network PCAP: filteredfull

                                          • Total Packets: 7
                                          • 443 (HTTPS)
                                          • 80 (HTTP)
                                          TimestampSource PortDest PortSource IPDest IP
                                          Mar 27, 2025 03:45:06.935770988 CET43928443192.168.2.2391.189.91.42
                                          Mar 27, 2025 03:45:12.565593004 CET42836443192.168.2.2391.189.91.43
                                          Mar 27, 2025 03:45:13.333606005 CET4251680192.168.2.23109.202.202.202
                                          Mar 27, 2025 03:45:27.667768955 CET43928443192.168.2.2391.189.91.42
                                          Mar 27, 2025 03:45:39.953995943 CET42836443192.168.2.2391.189.91.43
                                          Mar 27, 2025 03:45:44.049434900 CET4251680192.168.2.23109.202.202.202
                                          Mar 27, 2025 03:46:08.622066975 CET43928443192.168.2.2391.189.91.42

                                          System Behavior

                                          Start time (UTC):02:45:08
                                          Start date (UTC):27/03/2025
                                          Path:/tmp/.i.elf
                                          Arguments:/tmp/.i.elf
                                          File size:4956856 bytes
                                          MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1