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Linux Analysis Report
dlr.m68k.elf

Overview

General Information

Sample name:dlr.m68k.elf
Analysis ID:1644393
MD5:b18f64d00b104f06de0522b35ef63bff
SHA1:0362c5b24411e654b8a495653ceca7f4b10e5bc0
SHA256:3d7164cbbe761e8a2293398e52c5c5db0dc6b5ad489d3369fdc96413ae8a93b7
Tags:elfuser-abuse_ch
Infos:

Detection

Score:48
Range:0 - 100

Signatures

Multi AV Scanner detection for submitted file
Executes the "rm" command used to delete files or directories
Sample has stripped symbol table
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious
Joe Sandbox version:42.0.0 Malachite
Analysis ID:1644393
Start date and time:2025-03-20 15:03:43 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 45s
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:dlr.m68k.elf
Detection:MAL
Classification:mal48.linELF@0/0@0/0
Command:/tmp/dlr.m68k.elf
PID:6263
Exit Code:139
Exit Code Info:SIGSEGV (11) Segmentation fault invalid memory reference
Killed:False
Standard Output:

Standard Error:
  • system is lnxubuntu20
  • dlr.m68k.elf (PID: 6263, Parent: 6186, MD5: cd177594338c77b895ae27c33f8f86cc) Arguments: /tmp/dlr.m68k.elf
  • dash New Fork (PID: 6337, Parent: 4331)
  • rm (PID: 6337, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.BFrtXsHpkb /tmp/tmp.eB1U4zLaEp /tmp/tmp.5WM1ZLPi8r
  • dash New Fork (PID: 6338, Parent: 4331)
  • rm (PID: 6338, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.BFrtXsHpkb /tmp/tmp.eB1U4zLaEp /tmp/tmp.5WM1ZLPi8r
  • cleanup
No yara matches
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: dlr.m68k.elfVirustotal: Detection: 28%Perma Link
Source: dlr.m68k.elfReversingLabs: Detection: 38%
Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknownTCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.43
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 443 -> 39254
Source: unknownNetwork traffic detected: HTTP traffic on port 43928 -> 443
Source: unknownNetwork traffic detected: HTTP traffic on port 42836 -> 443
Source: unknownNetwork traffic detected: HTTP traffic on port 39254 -> 443
Source: ELF static info symbol of initial sample.symtab present: no
Source: classification engineClassification label: mal48.linELF@0/0@0/0
Source: /usr/bin/dash (PID: 6337)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.BFrtXsHpkb /tmp/tmp.eB1U4zLaEp /tmp/tmp.5WM1ZLPi8rJump to behavior
Source: /usr/bin/dash (PID: 6338)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.BFrtXsHpkb /tmp/tmp.eB1U4zLaEp /tmp/tmp.5WM1ZLPi8rJump to behavior
Source: /tmp/dlr.m68k.elf (PID: 6263)Queries kernel information via 'uname': Jump to behavior
Source: dlr.m68k.elf, 6263.1.00007fffe68ed000.00007fffe690e000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-m68k/tmp/dlr.m68k.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/dlr.m68k.elf
Source: dlr.m68k.elf, 6263.1.000055b31507b000.000055b3150bd000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/m68k
Source: dlr.m68k.elf, 6263.1.00007fffe68ed000.00007fffe690e000.rw-.sdmpBinary or memory string: /usr/bin/qemu-m68k
Source: dlr.m68k.elf, 6263.1.000055b31507b000.000055b3150bd000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/m68k
ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
Gather Victim Identity InformationAcquire InfrastructureValid AccountsWindows Management InstrumentationPath InterceptionPath Interception1
File Deletion
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: 1644393 Sample: dlr.m68k.elf Startdate: 20/03/2025 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 dlr.m68k.elf 2->10         started        signatures3 process4
SourceDetectionScannerLabelLink
dlr.m68k.elf29%VirustotalBrowse
dlr.m68k.elf39%ReversingLabsLinux.Downloader.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
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
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                                                              No context
                                                              No created / dropped files found
                                                              File type:ELF 32-bit MSB executable, Motorola m68k, 68020, version 1 (SYSV), statically linked, stripped
                                                              Entropy (8bit):5.002951791743424
                                                              TrID:
                                                              • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                                                              File name:dlr.m68k.elf
                                                              File size:1'240 bytes
                                                              MD5:b18f64d00b104f06de0522b35ef63bff
                                                              SHA1:0362c5b24411e654b8a495653ceca7f4b10e5bc0
                                                              SHA256:3d7164cbbe761e8a2293398e52c5c5db0dc6b5ad489d3369fdc96413ae8a93b7
                                                              SHA512:706f7b8d213f97ce72d833c01fe0301c725923daa789b1b769272240ae320330a9d24f1301151874de5e0529dc7c4ff366eb4def20e890312dc32c52436ecd06
                                                              SSDEEP:24:3kZdSAa8DzSWPpbP78Pwy74+CiUTHjhHCeD8ECAfGSpiox9tNQWTNT1Z7V:0jSApP3hb/mSTjhiK8DAfUWQwNhlV
                                                              TLSH:2621FC09F3896D4FEDA71078582B023B30307A4AE4138512B3669F3F7D3B1D4121A18E
                                                              File Content Preview:.ELF.......................>...4.........4. ...(.................................. ...........#...#............... .dt.Q............................NV......p...B.....H@B@......B.........N^NuNV../...Hx..a.....P.N^NuNV../...Hx..a....hN^NuNV../.../.../...Hx.

                                                              ELF header

                                                              Class:ELF32
                                                              Data:2's complement, big endian
                                                              Version:1 (current)
                                                              Machine:MC68000
                                                              Version Number:0x1
                                                              Type:EXEC (Executable file)
                                                              OS/ABI:UNIX - System V
                                                              ABI Version:0
                                                              Entry Point Address:0x8000033e
                                                              Flags:0x0
                                                              ELF Header Size:52
                                                              Program Header Offset:52
                                                              Program Header Size:32
                                                              Number of Program Headers:3
                                                              Section Header Offset:1040
                                                              Section Header Size:40
                                                              Number of Section Headers:5
                                                              Header String Table Index:4
                                                              NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
                                                              NULL0x00x00x00x00x0000
                                                              .textPROGBITS0x800000940x940x3240x00x6AX004
                                                              .rodataPROGBITS0x800003b80x3b80x360x10x32AMS001
                                                              .bssNOBITS0x800023f00x3f00x80x00x3WA004
                                                              .shstrtabSTRTAB0x00x3f00x1e0x00x0001
                                                              TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
                                                              LOAD0x00x800000000x800000000x3ee0x3ee5.39520x5R E0x2000.text .rodata
                                                              LOAD0x3f00x800023f00x800023f00x00x80.00000x6RW 0x2000.bss
                                                              GNU_STACK0x00x00x00x00x00.00000x6RW 0x4

                                                              Download Network PCAP: filteredfull

                                                              • Total Packets: 11
                                                              • 443 (HTTPS)
                                                              • 80 (HTTP)
                                                              TimestampSource PortDest PortSource IPDest IP
                                                              Mar 20, 2025 15:04:40.761497974 CET43928443192.168.2.2391.189.91.42
                                                              Mar 20, 2025 15:04:45.620913982 CET4251680192.168.2.23109.202.202.202
                                                              Mar 20, 2025 15:04:46.132800102 CET42836443192.168.2.2391.189.91.43
                                                              Mar 20, 2025 15:04:52.126425982 CET39254443192.168.2.2334.249.145.219
                                                              Mar 20, 2025 15:04:52.126466036 CET4433925434.249.145.219192.168.2.23
                                                              Mar 20, 2025 15:04:52.126529932 CET39254443192.168.2.2334.249.145.219
                                                              Mar 20, 2025 15:04:52.126831055 CET39254443192.168.2.2334.249.145.219
                                                              Mar 20, 2025 15:04:52.126852989 CET4433925434.249.145.219192.168.2.23
                                                              Mar 20, 2025 15:05:01.234661102 CET43928443192.168.2.2391.189.91.42
                                                              Mar 20, 2025 15:05:13.520967007 CET42836443192.168.2.2391.189.91.43
                                                              Mar 20, 2025 15:05:15.568665981 CET4251680192.168.2.23109.202.202.202
                                                              Mar 20, 2025 15:05:42.188951969 CET43928443192.168.2.2391.189.91.42
                                                              Mar 20, 2025 15:05:52.118597984 CET39254443192.168.2.2334.249.145.219
                                                              Mar 20, 2025 15:05:52.160322905 CET4433925434.249.145.219192.168.2.23
                                                              Mar 20, 2025 15:06:43.857928991 CET4433925434.249.145.219192.168.2.23

                                                              System Behavior

                                                              Start time (UTC):14:04:39
                                                              Start date (UTC):20/03/2025
                                                              Path:/tmp/dlr.m68k.elf
                                                              Arguments:/tmp/dlr.m68k.elf
                                                              File size:4463432 bytes
                                                              MD5 hash:cd177594338c77b895ae27c33f8f86cc

                                                              Start time (UTC):14:05:51
                                                              Start date (UTC):20/03/2025
                                                              Path:/usr/bin/dash
                                                              Arguments:-
                                                              File size:129816 bytes
                                                              MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                                              Start time (UTC):14:05:51
                                                              Start date (UTC):20/03/2025
                                                              Path:/usr/bin/rm
                                                              Arguments:rm -f /tmp/tmp.BFrtXsHpkb /tmp/tmp.eB1U4zLaEp /tmp/tmp.5WM1ZLPi8r
                                                              File size:72056 bytes
                                                              MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b

                                                              Start time (UTC):14:05:51
                                                              Start date (UTC):20/03/2025
                                                              Path:/usr/bin/dash
                                                              Arguments:-
                                                              File size:129816 bytes
                                                              MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                                              Start time (UTC):14:05:51
                                                              Start date (UTC):20/03/2025
                                                              Path:/usr/bin/rm
                                                              Arguments:rm -f /tmp/tmp.BFrtXsHpkb /tmp/tmp.eB1U4zLaEp /tmp/tmp.5WM1ZLPi8r
                                                              File size:72056 bytes
                                                              MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b