Loading Joe Sandbox Report ...

Edit tour

Linux Analysis Report
.i.elf

Overview

General Information

Sample name:.i.elf
Analysis ID:1546465
MD5:c87caec628b1f2f2510c498e2b383465
SHA1:105247710355d7f3b85e2f67d2df7ff6392b0d88
SHA256:0cf39253921fc6d900031e52c0013bb393009ebbd84e7f993efbbb22b239955e
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

Joe Sandbox version:41.0.0 Charoite
Analysis ID:1546465
Start date and time:2024-10-31 23:46:09 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 19s
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
  • VT rate limit hit for: .i.elf
Command:/tmp/.i.elf
PID:6215
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: 6215, Parent: 6131, 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.elfReversingLabs: Detection: 42%
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 7.9915 entropy (max. 8.0)
Source: /tmp/.i.elf (PID: 6215)Queries kernel information via 'uname': Jump to behavior
Source: .i.elf, 6215.1.000055d44636f000.000055d4463f6000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/mips
Source: .i.elf, 6215.1.000055d44636f000.000055d4463f6000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/mips
Source: .i.elf, 6215.1.00007ffd9969b000.00007ffd996bc000.rw-.sdmpBinary or memory string: /usr/bin/qemu-mips
Source: .i.elf, 6215.1.00007ffd9969b000.00007ffd996bc000.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, 6215.1.00007ffd9969b000.00007ffd996bc000.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

This section contains all screenshots as thumbnails, including those not shown in the slideshow.


windows-stand
SourceDetectionScannerLabelLink
.i.elf42%ReversingLabsLinux.Infostealer.Berbew
.i.elf100%AviraLINUX/Siggen.aqirl
No Antivirus matches
No Antivirus matches
No Antivirus matches
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
91.189.91.43linux_arm6.elfGet hashmaliciousChaosBrowse
    linux_mips64.elfGet hashmaliciousChaosBrowse
      linux_arm5.elfGet hashmaliciousChaosBrowse
        Mozi.m.elfGet hashmaliciousUnknownBrowse
          x.rar.elfGet hashmaliciousXmrigBrowse
            boatnet.arm.elfGet hashmaliciousMiraiBrowse
              boatnet.m68k.elfGet hashmaliciousMiraiBrowse
                boatnet.x86.elfGet hashmaliciousMiraiBrowse
                  tftp.elfGet hashmaliciousUnknownBrowse
                    .i.elfGet hashmaliciousUnknownBrowse
                      91.189.91.42linux_arm6.elfGet hashmaliciousChaosBrowse
                        linux_mips64.elfGet hashmaliciousChaosBrowse
                          linux_arm5.elfGet hashmaliciousChaosBrowse
                            Mozi.m.elfGet hashmaliciousUnknownBrowse
                              x.rar.elfGet hashmaliciousXmrigBrowse
                                boatnet.arm.elfGet hashmaliciousMiraiBrowse
                                  boatnet.m68k.elfGet hashmaliciousMiraiBrowse
                                    boatnet.x86.elfGet hashmaliciousMiraiBrowse
                                      tftp.elfGet hashmaliciousUnknownBrowse
                                        .i.elfGet hashmaliciousUnknownBrowse
                                          No context
                                          MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
                                          CANONICAL-ASGBlinux_arm6.elfGet hashmaliciousChaosBrowse
                                          • 91.189.91.42
                                          linux_mips64.elfGet hashmaliciousChaosBrowse
                                          • 91.189.91.42
                                          linux_arm5.elfGet hashmaliciousChaosBrowse
                                          • 91.189.91.42
                                          Mozi.m.elfGet hashmaliciousUnknownBrowse
                                          • 91.189.91.42
                                          x.rar.elfGet hashmaliciousXmrigBrowse
                                          • 91.189.91.42
                                          boatnet.arm6.elfGet hashmaliciousMiraiBrowse
                                          • 185.125.190.26
                                          boatnet.arm.elfGet hashmaliciousMiraiBrowse
                                          • 91.189.91.42
                                          boatnet.mpsl.elfGet hashmaliciousMiraiBrowse
                                          • 185.125.190.26
                                          boatnet.m68k.elfGet hashmaliciousMiraiBrowse
                                          • 91.189.91.42
                                          boatnet.sh4.elfGet hashmaliciousMiraiBrowse
                                          • 185.125.190.26
                                          CANONICAL-ASGBlinux_arm6.elfGet hashmaliciousChaosBrowse
                                          • 91.189.91.42
                                          linux_mips64.elfGet hashmaliciousChaosBrowse
                                          • 91.189.91.42
                                          linux_arm5.elfGet hashmaliciousChaosBrowse
                                          • 91.189.91.42
                                          Mozi.m.elfGet hashmaliciousUnknownBrowse
                                          • 91.189.91.42
                                          x.rar.elfGet hashmaliciousXmrigBrowse
                                          • 91.189.91.42
                                          boatnet.arm6.elfGet hashmaliciousMiraiBrowse
                                          • 185.125.190.26
                                          boatnet.arm.elfGet hashmaliciousMiraiBrowse
                                          • 91.189.91.42
                                          boatnet.mpsl.elfGet hashmaliciousMiraiBrowse
                                          • 185.125.190.26
                                          boatnet.m68k.elfGet hashmaliciousMiraiBrowse
                                          • 91.189.91.42
                                          boatnet.sh4.elfGet hashmaliciousMiraiBrowse
                                          • 185.125.190.26
                                          INIT7CHlinux_arm6.elfGet hashmaliciousChaosBrowse
                                          • 109.202.202.202
                                          linux_mips64.elfGet hashmaliciousChaosBrowse
                                          • 109.202.202.202
                                          linux_arm5.elfGet hashmaliciousChaosBrowse
                                          • 109.202.202.202
                                          Mozi.m.elfGet hashmaliciousUnknownBrowse
                                          • 109.202.202.202
                                          x.rar.elfGet hashmaliciousXmrigBrowse
                                          • 109.202.202.202
                                          boatnet.arm.elfGet hashmaliciousMiraiBrowse
                                          • 109.202.202.202
                                          boatnet.m68k.elfGet hashmaliciousMiraiBrowse
                                          • 109.202.202.202
                                          boatnet.x86.elfGet hashmaliciousMiraiBrowse
                                          • 109.202.202.202
                                          tftp.elfGet hashmaliciousUnknownBrowse
                                          • 109.202.202.202
                                          .i.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):7.991521990359222
                                          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:29'988 bytes
                                          MD5:c87caec628b1f2f2510c498e2b383465
                                          SHA1:105247710355d7f3b85e2f67d2df7ff6392b0d88
                                          SHA256:0cf39253921fc6d900031e52c0013bb393009ebbd84e7f993efbbb22b239955e
                                          SHA512:ebed591b6a57626bcb78ea4e6fe2e622f78615cd9ae65fc5493b23af98e579a7494eb22d88c404db0045b5c97800be718b2600e67f8d62d77519940fcef6e50d
                                          SSDEEP:768:YTYIDfYG6ZmewZ59+Nw1qsREH20j7UNqj:yYI0ARqw1qAEW67UIj
                                          TLSH:08D2E1D333843B13E16265F8E3BDAFCA61163D649FEE142B94513622707311D599DC2B
                                          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
                                          LOAD0x00x1000000x1000000x142640x142647.99150x5R E0x10000
                                          LOAD0xa6c00x47a6c00x47a6c00x00x00.00000x6RW 0x10000
                                          TimestampSource PortDest PortSource IPDest IP
                                          Oct 31, 2024 23:46:50.144614935 CET43928443192.168.2.2391.189.91.42
                                          Oct 31, 2024 23:46:55.518234015 CET42836443192.168.2.2391.189.91.43
                                          Oct 31, 2024 23:46:57.054028988 CET4251680192.168.2.23109.202.202.202
                                          Oct 31, 2024 23:47:10.108212948 CET43928443192.168.2.2391.189.91.42
                                          Oct 31, 2024 23:47:22.394499063 CET42836443192.168.2.2391.189.91.43
                                          Oct 31, 2024 23:47:26.489948988 CET4251680192.168.2.23109.202.202.202
                                          Oct 31, 2024 23:47:51.062622070 CET43928443192.168.2.2391.189.91.42

                                          System Behavior

                                          Start time (UTC):22:46:47
                                          Start date (UTC):31/10/2024
                                          Path:/tmp/.i.elf
                                          Arguments:/tmp/.i.elf
                                          File size:5777432 bytes
                                          MD5 hash:0083f1f0e77be34ad27f849842bbb00c