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Linux Analysis Report
dlr.x86.elf

Overview

General Information

Sample name:dlr.x86.elf
Analysis ID:1590187
MD5:e20fe07a1dc39a881b29b6f1f7f636a8
SHA1:dd91b45a3bfe93e85e66e13e63fc5649a4eb8b0d
SHA256:c930ffafdac0d9e12ac3d6c95aec2260d80359342ffb24bb22153b8b02e23169
Tags:elfuser-abuse_ch
Infos:

Detection

Score:60
Range:0 - 100
Whitelisted:false

Signatures

Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Machine Learning detection for sample
HTTP GET or POST without a user agent
Sample has stripped symbol table
Yara signature match

Classification

Joe Sandbox version:42.0.0 Malachite
Analysis ID:1590187
Start date and time:2025-01-13 17:47:04 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 6m 48s
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.x86.elf
Detection:MAL
Classification:mal60.linELF@0/0@0/0
Command:/tmp/dlr.x86.elf
PID:6232
Exit Code:
Exit Code Info:
Killed:True
Standard Output:
LIZRD
Standard Error:
  • system is lnxubuntu20
  • dlr.x86.elf (PID: 6232, Parent: 6157, MD5: e20fe07a1dc39a881b29b6f1f7f636a8) Arguments: /tmp/dlr.x86.elf
  • cleanup
SourceRuleDescriptionAuthorStrings
dlr.x86.elfLinux_Trojan_Mirai_88a1b067unknownunknown
  • 0x91:$a: 00 00 00 55 89 E5 0F B6 55 08 0F B6 45 0C C1 E2 18 C1 E0 10
SourceRuleDescriptionAuthorStrings
6232.1.0000000008049000.000000000804a000.rw-.sdmpLinux_Trojan_Mirai_88a1b067unknownunknown
  • 0x91:$a: 00 00 00 55 89 E5 0F B6 55 08 0F B6 45 0C C1 E2 18 C1 E0 10
6232.1.0000000008048000.0000000008049000.r-x.sdmpLinux_Trojan_Mirai_88a1b067unknownunknown
  • 0x91:$a: 00 00 00 55 89 E5 0F B6 55 08 0F B6 45 0C C1 E2 18 C1 E0 10
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: dlr.x86.elfVirustotal: Detection: 63%Perma Link
Source: dlr.x86.elfReversingLabs: Detection: 65%
Source: dlr.x86.elfJoe Sandbox ML: detected
Source: global trafficHTTP traffic detected: GET /hiddenbin/boatnet.x86 HTTP/Data Raw: Data Ascii:
Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknownTCP traffic detected without corresponding DNS query: 185.189.13.91
Source: unknownTCP traffic detected without corresponding DNS query: 185.189.13.91
Source: unknownTCP traffic detected without corresponding DNS query: 185.189.13.91
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: 185.189.13.91
Source: unknownTCP traffic detected without corresponding DNS query: 185.189.13.91
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: global trafficHTTP traffic detected: GET /hiddenbin/boatnet.x86 HTTP/Data Raw: Data Ascii:
Source: unknownNetwork traffic detected: HTTP traffic on port 43928 -> 443
Source: unknownNetwork traffic detected: HTTP traffic on port 42836 -> 443

System Summary

barindex
Source: dlr.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Mirai_88a1b067 Author: unknown
Source: 6232.1.0000000008049000.000000000804a000.rw-.sdmp, type: MEMORYMatched rule: Linux_Trojan_Mirai_88a1b067 Author: unknown
Source: 6232.1.0000000008048000.0000000008049000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Mirai_88a1b067 Author: unknown
Source: ELF static info symbol of initial sample.symtab present: no
Source: dlr.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Mirai_88a1b067 severity = 100, os = linux, arch_context = x86, creation_date = 2021-06-28, scan_context = file, memory, reference = 1a62db02343edda916cbbf463d8e07ec2ad4509fd0f15a5f6946d0ec6c332dd9, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = b32b42975297aed7cef72668ee272a5cfb753dce7813583f0c3ec91e52f8601f, id = 88a1b067-11d5-4128-b763-2d1747c95eef, last_modified = 2021-09-16
Source: 6232.1.0000000008049000.000000000804a000.rw-.sdmp, type: MEMORYMatched rule: Linux_Trojan_Mirai_88a1b067 severity = 100, os = linux, arch_context = x86, creation_date = 2021-06-28, scan_context = file, memory, reference = 1a62db02343edda916cbbf463d8e07ec2ad4509fd0f15a5f6946d0ec6c332dd9, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = b32b42975297aed7cef72668ee272a5cfb753dce7813583f0c3ec91e52f8601f, id = 88a1b067-11d5-4128-b763-2d1747c95eef, last_modified = 2021-09-16
Source: 6232.1.0000000008048000.0000000008049000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Mirai_88a1b067 severity = 100, os = linux, arch_context = x86, creation_date = 2021-06-28, scan_context = file, memory, reference = 1a62db02343edda916cbbf463d8e07ec2ad4509fd0f15a5f6946d0ec6c332dd9, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = b32b42975297aed7cef72668ee272a5cfb753dce7813583f0c3ec91e52f8601f, id = 88a1b067-11d5-4128-b763-2d1747c95eef, last_modified = 2021-09-16
Source: classification engineClassification label: mal60.linELF@0/0@0/0
ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
Gather Victim Identity InformationAcquire InfrastructureValid AccountsWindows Management InstrumentationPath InterceptionPath InterceptionDirect Volume AccessOS Credential DumpingSystem Service DiscoveryRemote 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
Non-Application Layer Protocol
Exfiltration Over BluetoothNetwork Denial of Service
Email AddressesDNS ServerDomain AccountsAtLogon Script (Windows)Logon Script (Windows)Obfuscated Files or InformationSecurity Account ManagerQuery RegistrySMB/Windows Admin SharesData from Network Shared Drive2
Application Layer Protocol
Automated ExfiltrationData Encrypted for Impact
Employee NamesVirtual Private ServerLocal AccountsCronLogin HookLogin HookBinary PaddingNTDSSystem Network Configuration DiscoveryDistributed Component Object ModelInput Capture1
Ingress Tool Transfer
Traffic DuplicationData Destruction
No configs have been found

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


windows-stand
SourceDetectionScannerLabelLink
dlr.x86.elf63%VirustotalBrowse
dlr.x86.elf66%ReversingLabsLinux.Backdoor.Mirai
dlr.x86.elf100%Joe Sandbox ML
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
185.189.13.91
unknownRussian Federation
50113SUPERSERVERSDATACENTERRUfalse
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
185.189.13.91armv4l.elfGet hashmaliciousGafgyt, MiraiBrowse
    armv6l.elfGet hashmaliciousGafgyt, MiraiBrowse
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            91.189.91.43armv4l.elfGet hashmaliciousGafgyt, MiraiBrowse
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                                91.189.91.42armv4l.elfGet hashmaliciousGafgyt, MiraiBrowse
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                                    na.elfGet hashmaliciousPrometeiBrowse
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                                                    No context
                                                    MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
                                                    CANONICAL-ASGBarmv4l.elfGet hashmaliciousGafgyt, MiraiBrowse
                                                    • 91.189.91.42
                                                    armv6l.elfGet hashmaliciousGafgyt, MiraiBrowse
                                                    • 185.125.190.26
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                                                    • 91.189.91.42
                                                    na.elfGet hashmaliciousPrometeiBrowse
                                                    • 91.189.91.42
                                                    na.elfGet hashmaliciousPrometeiBrowse
                                                    • 91.189.91.42
                                                    96.62.214.10-boatnet.x86-2025-01-13T13_31_47.elfGet hashmaliciousMiraiBrowse
                                                    • 185.125.190.26
                                                    na.elfGet hashmaliciousPrometeiBrowse
                                                    • 91.189.91.42
                                                    na.elfGet hashmaliciousPrometeiBrowse
                                                    • 91.189.91.42
                                                    t3.elfGet hashmaliciousUnknownBrowse
                                                    • 91.189.91.42
                                                    t2.elfGet hashmaliciousUnknownBrowse
                                                    • 91.189.91.42
                                                    CANONICAL-ASGBarmv4l.elfGet hashmaliciousGafgyt, MiraiBrowse
                                                    • 91.189.91.42
                                                    armv6l.elfGet hashmaliciousGafgyt, MiraiBrowse
                                                    • 185.125.190.26
                                                    armv5l.elfGet hashmaliciousGafgyt, MiraiBrowse
                                                    • 91.189.91.42
                                                    na.elfGet hashmaliciousPrometeiBrowse
                                                    • 91.189.91.42
                                                    na.elfGet hashmaliciousPrometeiBrowse
                                                    • 91.189.91.42
                                                    96.62.214.10-boatnet.x86-2025-01-13T13_31_47.elfGet hashmaliciousMiraiBrowse
                                                    • 185.125.190.26
                                                    na.elfGet hashmaliciousPrometeiBrowse
                                                    • 91.189.91.42
                                                    na.elfGet hashmaliciousPrometeiBrowse
                                                    • 91.189.91.42
                                                    t3.elfGet hashmaliciousUnknownBrowse
                                                    • 91.189.91.42
                                                    t2.elfGet hashmaliciousUnknownBrowse
                                                    • 91.189.91.42
                                                    SUPERSERVERSDATACENTERRUarmv4l.elfGet hashmaliciousGafgyt, MiraiBrowse
                                                    • 185.189.13.91
                                                    armv6l.elfGet hashmaliciousGafgyt, MiraiBrowse
                                                    • 185.189.13.91
                                                    armv5l.elfGet hashmaliciousGafgyt, MiraiBrowse
                                                    • 185.189.13.91
                                                    armv7l.elfGet hashmaliciousGafgyt, MiraiBrowse
                                                    • 185.189.13.91
                                                    mipsel.elfGet hashmaliciousGafgyt, MiraiBrowse
                                                    • 185.189.13.91
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                                                    • 185.255.135.104
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                                                    • 185.255.135.104
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                                                    • 109.202.202.202
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                                                    • 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
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                                                    • 109.202.202.202
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                                                    • 109.202.202.202
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                                                    • 109.202.202.202
                                                    hikarm6.elfGet hashmaliciousUnknownBrowse
                                                    • 109.202.202.202
                                                    No context
                                                    No context
                                                    No created / dropped files found
                                                    File type:ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), statically linked, stripped
                                                    Entropy (8bit):5.459336039399656
                                                    TrID:
                                                    • ELF Executable and Linkable format (Linux) (4029/14) 50.16%
                                                    • ELF Executable and Linkable format (generic) (4004/1) 49.84%
                                                    File name:dlr.x86.elf
                                                    File size:1'184 bytes
                                                    MD5:e20fe07a1dc39a881b29b6f1f7f636a8
                                                    SHA1:dd91b45a3bfe93e85e66e13e63fc5649a4eb8b0d
                                                    SHA256:c930ffafdac0d9e12ac3d6c95aec2260d80359342ffb24bb22153b8b02e23169
                                                    SHA512:ab54eaf33093132edf69782a531da32e4befaabeb5cbb65b0aaa93c3a1fa2b2c916beb6482c8635070798103fbe49e57a6b9a36cfed24222a3bab62db203b6d6
                                                    SSDEEP:24:FlRM85FHxgxCl6ZSiSZSLRURJ2ifGt+wyrGuWpo/ruQ6N7XNfTBj:fR15sSi0SLRURJ2io+wyrSpoDHg7XNFj
                                                    TLSH:3421C266E2E4EC33D66201B665C2AF5A1771CDA15456FF0B8E614402ED2E1D0D232374
                                                    File Content Preview:.ELF....................!...4...........4. ...(.....................................................................Q.td............................U....U...E...........M...E........].....................................U......u.j..@........U......u.j..+.

                                                    ELF header

                                                    Class:ELF32
                                                    Data:2's complement, little endian
                                                    Version:1 (current)
                                                    Machine:Intel 80386
                                                    Version Number:0x1
                                                    Type:EXEC (Executable file)
                                                    OS/ABI:UNIX - System V
                                                    ABI Version:0
                                                    Entry Point Address:0x8048321
                                                    Flags:0x0
                                                    ELF Header Size:52
                                                    Program Header Offset:52
                                                    Program Header Size:32
                                                    Number of Program Headers:3
                                                    Section Header Offset:984
                                                    Section Header Size:40
                                                    Number of Section Headers:5
                                                    Header String Table Index:4
                                                    NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
                                                    NULL0x00x00x00x00x0000
                                                    .textPROGBITS0x80480940x940x2e50x00x6AX004
                                                    .rodataPROGBITS0x80483790x3790x3e0x10x32AMS001
                                                    .bssNOBITS0x80493b80x3b80x40x00x3WA004
                                                    .shstrtabSTRTAB0x00x3b80x1e0x00x0001
                                                    TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
                                                    LOAD0x00x80480000x80480000x3b70x3b75.88390x5R E0x1000.text .rodata
                                                    LOAD0x3b80x80493b80x80493b80x00x40.00000x6RW 0x1000.bss
                                                    GNU_STACK0x00x00x00x00x00.00000x6RW 0x4
                                                    TimestampSource PortDest PortSource IPDest IP
                                                    Jan 13, 2025 17:47:52.948842049 CET43928443192.168.2.2391.189.91.42
                                                    Jan 13, 2025 17:47:53.423078060 CET5346480192.168.2.23185.189.13.91
                                                    Jan 13, 2025 17:47:53.428049088 CET8053464185.189.13.91192.168.2.23
                                                    Jan 13, 2025 17:47:53.428122997 CET5346480192.168.2.23185.189.13.91
                                                    Jan 13, 2025 17:47:53.428879976 CET5346480192.168.2.23185.189.13.91
                                                    Jan 13, 2025 17:47:53.433671951 CET8053464185.189.13.91192.168.2.23
                                                    Jan 13, 2025 17:47:58.580444098 CET42836443192.168.2.2391.189.91.43
                                                    Jan 13, 2025 17:47:59.347930908 CET4251680192.168.2.23109.202.202.202
                                                    Jan 13, 2025 17:48:14.193883896 CET43928443192.168.2.2391.189.91.42
                                                    Jan 13, 2025 17:48:24.432759047 CET42836443192.168.2.2391.189.91.43
                                                    Jan 13, 2025 17:48:30.576231956 CET4251680192.168.2.23109.202.202.202
                                                    Jan 13, 2025 17:48:38.412374973 CET5346480192.168.2.23185.189.13.91
                                                    Jan 13, 2025 17:48:38.418045998 CET8053464185.189.13.91192.168.2.23
                                                    Jan 13, 2025 17:48:38.418139935 CET5346480192.168.2.23185.189.13.91
                                                    Jan 13, 2025 17:48:55.148860931 CET43928443192.168.2.2391.189.91.42
                                                    Jan 13, 2025 17:49:15.625920057 CET42836443192.168.2.2391.189.91.43
                                                    Session IDSource IPSource PortDestination IPDestination Port
                                                    0192.168.2.2353464185.189.13.9180
                                                    TimestampBytes transferredDirectionData
                                                    Jan 13, 2025 17:47:53.428879976 CET45OUTGET /hiddenbin/boatnet.x86 HTTP/
                                                    Data Raw:
                                                    Data Ascii:


                                                    System Behavior

                                                    Start time (UTC):16:47:52
                                                    Start date (UTC):13/01/2025
                                                    Path:/tmp/dlr.x86.elf
                                                    Arguments:/tmp/dlr.x86.elf
                                                    File size:1184 bytes
                                                    MD5 hash:e20fe07a1dc39a881b29b6f1f7f636a8