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Linux Analysis Report
.i.elf

Overview

General Information

Sample name:.i.elf
Analysis ID:1648308
MD5:1ced6d847abd96637776222044272784
SHA1:c6a0a945208e9eeb794f23cc0d5122072fcd20c0
SHA256:9ca64f7012162c6b8572c26088eca7b1fae606471327295605ae91389bf19b20
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
Executes the "rm" command used to delete files or directories
Sample contains only a LOAD segment without any section mappings
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious
Joe Sandbox version:42.0.0 Malachite
Analysis ID:1648308
Start date and time:2025-03-25 18:17:02 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 37s
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:6229
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: 6229, Parent: 6150, MD5: 0083f1f0e77be34ad27f849842bbb00c) Arguments: /tmp/.i.elf
  • dash New Fork (PID: 6312, Parent: 4335)
  • rm (PID: 6312, Parent: 4335, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.YxvUg8TDVU /tmp/tmp.Sse2Z30GgE /tmp/tmp.Pklk4mX0sY
  • dash New Fork (PID: 6313, Parent: 4335)
  • rm (PID: 6313, Parent: 4335, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.YxvUg8TDVU /tmp/tmp.Sse2Z30GgE /tmp/tmp.Pklk4mX0sY
  • 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: 40%Perma Link
Source: .i.elfReversingLabs: Detection: 44%
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: 34.249.145.219
Source: unknownTCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknownTCP traffic detected without corresponding DNS query: 34.249.145.219
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: 34.249.145.219
Source: unknownNetwork traffic detected: HTTP traffic on port 39246 -> 443
Source: unknownNetwork traffic detected: HTTP traffic on port 43928 -> 443
Source: unknownNetwork traffic detected: HTTP traffic on port 443 -> 39246
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: /usr/bin/dash (PID: 6312)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.YxvUg8TDVU /tmp/tmp.Sse2Z30GgE /tmp/tmp.Pklk4mX0sYJump to behavior
Source: /usr/bin/dash (PID: 6313)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.YxvUg8TDVU /tmp/tmp.Sse2Z30GgE /tmp/tmp.Pklk4mX0sYJump to behavior
Source: .i.elfSubmission file: segment LOAD with 7.9949 entropy (max. 8.0)
Source: /tmp/.i.elf (PID: 6229)Queries kernel information via 'uname': Jump to behavior
Source: .i.elf, 6229.1.000055fe75fb1000.000055fe76038000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/mips
Source: .i.elf, 6229.1.000055fe75fb1000.000055fe76038000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/mips
Source: .i.elf, 6229.1.00007ffd22b3d000.00007ffd22b5e000.rw-.sdmpBinary or memory string: /usr/bin/qemu-mips
Source: .i.elf, 6229.1.00007ffd22b3d000.00007ffd22b5e000.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, 6229.1.00007ffd22b3d000.00007ffd22b5e000.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 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
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1648308 Sample: .i.elf Startdate: 25/03/2025 Architecture: LINUX Score: 48 12 109.202.202.202, 80 INIT7CH Switzerland 2->12 14 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->14 16 2 other IPs or domains 2->16 18 Multi AV Scanner detection for submitted file 2->18 6 dash rm 2->6         started        8 dash rm 2->8         started        10 .i.elf 2->10         started        signatures3 process4
SourceDetectionScannerLabelLink
.i.elf41%VirustotalBrowse
.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
34.249.145.219
unknownUnited States
16509AMAZON-02USfalse
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
34.249.145.219na.elfGet hashmaliciousPrometeiBrowse
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                      91.189.91.43na.elfGet hashmaliciousPrometeiBrowse
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                                                  na.elfGet hashmaliciousPrometeiBrowse
                                                    na.elfGet hashmaliciousPrometeiBrowse
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                                                        arm6.elfGet hashmaliciousUnknownBrowse
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                                                              No context
                                                              MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
                                                              CANONICAL-ASGBna.elfGet hashmaliciousPrometeiBrowse
                                                              • 91.189.91.42
                                                              na.elfGet hashmaliciousPrometeiBrowse
                                                              • 91.189.91.42
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                                                              • 91.189.91.42
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                                                              • 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
                                                              arm6.elfGet hashmaliciousUnknownBrowse
                                                              • 91.189.91.42
                                                              x86.elfGet hashmaliciousUnknownBrowse
                                                              • 91.189.91.42
                                                              CANONICAL-ASGBna.elfGet hashmaliciousPrometeiBrowse
                                                              • 91.189.91.42
                                                              na.elfGet hashmaliciousPrometeiBrowse
                                                              • 91.189.91.42
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                                                              • 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
                                                              arm6.elfGet hashmaliciousUnknownBrowse
                                                              • 91.189.91.42
                                                              x86.elfGet hashmaliciousUnknownBrowse
                                                              • 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
                                                              arm6.elfGet hashmaliciousUnknownBrowse
                                                              • 109.202.202.202
                                                              x86.elfGet hashmaliciousUnknownBrowse
                                                              • 109.202.202.202
                                                              tmpsl.elfGet hashmaliciousUnknownBrowse
                                                              • 109.202.202.202
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                                                              • 13.225.63.61
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                                                              • 34.249.145.219
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                                                              • 52.219.231.20
                                                              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):7.9949388524849825
                                                              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:47'448 bytes
                                                              MD5:1ced6d847abd96637776222044272784
                                                              SHA1:c6a0a945208e9eeb794f23cc0d5122072fcd20c0
                                                              SHA256:9ca64f7012162c6b8572c26088eca7b1fae606471327295605ae91389bf19b20
                                                              SHA512:041d7fdce6cf9a6a7a37f1596f9eb37086a2f2781a74a91501f98b9a2fa0f8f1aa3f14d21fdb718d5eeeedaa1ff346b9f590ea49da62a7cc70302276ee1a5c39
                                                              SSDEEP:768:YTYIDfYG6ZmewZ59+Nw1qsREH20j7UNqVwi7M8ghFM04ZTzEsDm1Xo0K:yYI0ARqw1qAEW67UIWi7M8gmfmJo0K
                                                              TLSH:B523028623653F72D12158F5D7BCEF8A614A7E94AFE6180F7C117698B47135C28C8C1E
                                                              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
                                                              LOAD0x00x1000000x1000000x142640x142647.99490x5R E0x10000
                                                              LOAD0xa6c00x47a6c00x47a6c00x00x00.00000x6RW 0x10000

                                                              Download Network PCAP: filteredfull

                                                              • Total Packets: 11
                                                              • 443 (HTTPS)
                                                              • 80 (HTTP)
                                                              TimestampSource PortDest PortSource IPDest IP
                                                              Mar 25, 2025 18:17:48.410294056 CET43928443192.168.2.2391.189.91.42
                                                              Mar 25, 2025 18:17:54.041409969 CET42836443192.168.2.2391.189.91.43
                                                              Mar 25, 2025 18:17:55.577281952 CET4251680192.168.2.23109.202.202.202
                                                              Mar 25, 2025 18:18:09.638633966 CET39246443192.168.2.2334.249.145.219
                                                              Mar 25, 2025 18:18:09.638672113 CET4433924634.249.145.219192.168.2.23
                                                              Mar 25, 2025 18:18:09.638824940 CET39246443192.168.2.2334.249.145.219
                                                              Mar 25, 2025 18:18:09.639184952 CET39246443192.168.2.2334.249.145.219
                                                              Mar 25, 2025 18:18:09.639194965 CET4433924634.249.145.219192.168.2.23
                                                              Mar 25, 2025 18:18:10.167208910 CET43928443192.168.2.2391.189.91.42
                                                              Mar 25, 2025 18:18:20.405886889 CET42836443192.168.2.2391.189.91.43
                                                              Mar 25, 2025 18:18:26.549120903 CET4251680192.168.2.23109.202.202.202
                                                              Mar 25, 2025 18:18:51.121742010 CET43928443192.168.2.2391.189.91.42
                                                              Mar 25, 2025 18:19:09.631434917 CET39246443192.168.2.2334.249.145.219
                                                              Mar 25, 2025 18:19:09.676270962 CET4433924634.249.145.219192.168.2.23
                                                              Mar 25, 2025 18:19:52.781230927 CET4433924634.249.145.219192.168.2.23

                                                              System Behavior

                                                              Start time (UTC):17:17:48
                                                              Start date (UTC):25/03/2025
                                                              Path:/tmp/.i.elf
                                                              Arguments:/tmp/.i.elf
                                                              File size:5777432 bytes
                                                              MD5 hash:0083f1f0e77be34ad27f849842bbb00c

                                                              Start time (UTC):17:19:08
                                                              Start date (UTC):25/03/2025
                                                              Path:/usr/bin/dash
                                                              Arguments:-
                                                              File size:129816 bytes
                                                              MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                                              Start time (UTC):17:19:08
                                                              Start date (UTC):25/03/2025
                                                              Path:/usr/bin/rm
                                                              Arguments:rm -f /tmp/tmp.YxvUg8TDVU /tmp/tmp.Sse2Z30GgE /tmp/tmp.Pklk4mX0sY
                                                              File size:72056 bytes
                                                              MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b

                                                              Start time (UTC):17:19:08
                                                              Start date (UTC):25/03/2025
                                                              Path:/usr/bin/dash
                                                              Arguments:-
                                                              File size:129816 bytes
                                                              MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                                              Start time (UTC):17:19:08
                                                              Start date (UTC):25/03/2025
                                                              Path:/usr/bin/rm
                                                              Arguments:rm -f /tmp/tmp.YxvUg8TDVU /tmp/tmp.Sse2Z30GgE /tmp/tmp.Pklk4mX0sY
                                                              File size:72056 bytes
                                                              MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b