Joe Sandbox Cloud Basic Analysis Report
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Linux Analysis Report
sync.sparc.elf

Overview

General Information

Sample name:sync.sparc.elf
Analysis ID:1641112
MD5:0c4c232d96f35f80a9ce3a2eb2b64e33
SHA1:dea4a02b49557fe671ccae56624206ec4dd7abd4
SHA256:44cbc10244e13b12d1a3a87b03769a4a39e93cab79ca2ba3e698692838f66dd3
Tags:elfMiraiuser-abuse_ch
Infos:
Errors
  • No or unstable Internet during analysis

Detection

Score:52
Range:0 - 100

Signatures

Multi AV Scanner detection for submitted file
Sample deletes itself
Executes the "rm" command used to delete files or directories
Sample has stripped symbol table
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

General Information

Joe Sandbox version:42.0.0 Malachite
Analysis ID:1641112
Start date and time:2025-03-18 03:12:12 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 13s
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:sync.sparc.elf
Detection:MAL
Classification:mal52.evad.linELF@0/0@0/0
  • No or unstable Internet during analysis
  • Excluded IPs from analysis (whitelisted): 8.8.4.4

Runtime Messages

Command:/tmp/sync.sparc.elf
PID:5498
Exit Code:1
Exit Code Info:
Killed:False
Standard Output:
syncne
Standard Error:

Process Tree

  • system is lnxubuntu20
  • dash New Fork (PID: 5471, Parent: 3632)
  • rm (PID: 5471, Parent: 3632, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.sOebLWs6dp /tmp/tmp.uTnrqRcl5a /tmp/tmp.CBHHh1bCKs
  • dash New Fork (PID: 5472, Parent: 3632)
  • rm (PID: 5472, Parent: 3632, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.sOebLWs6dp /tmp/tmp.uTnrqRcl5a /tmp/tmp.CBHHh1bCKs
  • cleanup

Yara Signatures

⊘No yara matches

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

  • • AV Detection
  • • Networking
  • • System Summary
  • • Persistence and Installation Behavior
  • • Hooking and other Techniques for Hiding and Protection
  • • Malware Analysis System Evasion

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: sync.sparc.elfVirustotal: Detection: 38%Perma Link
Source: sync.sparc.elfReversingLabs: Detection: 41%
Source: global trafficTCP traffic: 192.168.2.14:46540 -> 185.125.190.26:443
Source: unknownTCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknownTCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknownUDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknownUDP traffic detected without corresponding DNS query: 1.0.0.1
Source: unknownUDP traffic detected without corresponding DNS query: 1.0.0.1
Source: unknownUDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknownUDP traffic detected without corresponding DNS query: 1.0.0.1
Source: unknownNetwork traffic detected: HTTP traffic on port 46540 -> 443
Source: ELF static info symbol of initial sample.symtab present: no
Source: classification engineClassification label: mal52.evad.linELF@0/0@0/0
Source: /usr/bin/dash (PID: 5471)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.sOebLWs6dp /tmp/tmp.uTnrqRcl5a /tmp/tmp.CBHHh1bCKsJump to behavior
Source: /usr/bin/dash (PID: 5472)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.sOebLWs6dp /tmp/tmp.uTnrqRcl5a /tmp/tmp.CBHHh1bCKsJump to behavior

Hooking and other Techniques for Hiding and Protection

barindex
Source: /tmp/sync.sparc.elf (PID: 5498)File: /tmp/sync.sparc.elfJump to behavior
Source: /tmp/sync.sparc.elf (PID: 5498)Queries kernel information via 'uname': Jump to behavior
Source: sync.sparc.elf, 5498.1.000055856a1dc000.000055856a261000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/sparc
Source: sync.sparc.elf, 5498.1.000055856a1dc000.000055856a261000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/sparc
Source: sync.sparc.elf, 5498.1.00007ffc857ef000.00007ffc85810000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-sparc/tmp/sync.sparc.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/sync.sparc.elf
Source: sync.sparc.elf, 5498.1.00007ffc857ef000.00007ffc85810000.rw-.sdmpBinary or memory string: /usr/bin/qemu-sparc

Mitre Att&ck Matrix

ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
Gather Victim Identity InformationAcquire InfrastructureValid AccountsWindows Management InstrumentationPath InterceptionPath Interception11
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

Malware Configuration

⊘No configs have been found

Behavior Graph

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: 1641112 Sample: sync.sparc.elf Startdate: 18/03/2025 Architecture: LINUX Score: 52 17 185.125.190.26, 443 CANONICAL-ASGB United Kingdom 2->17 19 Multi AV Scanner detection for submitted file 2->19 8 dash rm sync.sparc.elf 2->8         started        11 dash rm 2->11         started        signatures3 process4 signatures5 21 Sample deletes itself 8->21 13 sync.sparc.elf 8->13         started        process6 process7 15 sync.sparc.elf 13->15         started       

Screenshots

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Thumbnails

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windows-stand

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

SourceDetectionScannerLabelLink
sync.sparc.elf38%VirustotalBrowse
sync.sparc.elf42%ReversingLabsLinux.Backdoor.Mirai

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

⊘No contacted domains info

World Map of Contacted IPs

  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Public IPs

IPDomainCountryFlagASNASN NameMalicious
185.125.190.26
unknownUnited Kingdom
41231CANONICAL-ASGBfalse

Joe Sandbox View / Context

IPs

MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
185.125.190.26na.elfGet hashmaliciousPrometeiBrowse
    na.elfGet hashmaliciousPrometeiBrowse
      na.elfGet hashmaliciousPrometeiBrowse
        na.elfGet hashmaliciousPrometeiBrowse
          sync.superh.elfGet hashmaliciousUnknownBrowse
            main_x86.elfGet hashmaliciousMiraiBrowse
              arm7.elfGet hashmaliciousMiraiBrowse
                mips.elfGet hashmaliciousMiraiBrowse
                  arm7.elfGet hashmaliciousMiraiBrowse
                    na.elfGet hashmaliciousPrometeiBrowse

                      Domains

                      ⊘No context

                      ASNs

                      MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
                      CANONICAL-ASGBsync.x86_64.elfGet hashmaliciousUnknownBrowse
                      • 91.189.91.42
                      sync.x86.elfGet hashmaliciousUnknownBrowse
                      • 91.189.91.42
                      sync.mipsel.elfGet hashmaliciousUnknownBrowse
                      • 91.189.91.42
                      sync.arm6.elfGet hashmaliciousUnknownBrowse
                      • 91.189.91.42
                      na.elfGet hashmaliciousPrometeiBrowse
                      • 185.125.190.26
                      sync.mips.elfGet hashmaliciousUnknownBrowse
                      • 91.189.91.42
                      gigab.mips.elfGet hashmaliciousUnknownBrowse
                      • 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

                      JA3 Fingerprints

                      ⊘No context

                      Dropped Files

                      ⊘No context

                      Created / dropped Files

                      ⊘No created / dropped files found

                      Static File Info

                      General

                      File type:ELF 32-bit MSB executable, SPARC, version 1 (SYSV), statically linked, stripped
                      Entropy (8bit):6.125701030417766
                      TrID:
                      • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                      File name:sync.sparc.elf
                      File size:63'920 bytes
                      MD5:0c4c232d96f35f80a9ce3a2eb2b64e33
                      SHA1:dea4a02b49557fe671ccae56624206ec4dd7abd4
                      SHA256:44cbc10244e13b12d1a3a87b03769a4a39e93cab79ca2ba3e698692838f66dd3
                      SHA512:44500c66ff9fbe5fc712fb24a27923f8009c5c8266705e61d57c98ce3a48fd8624922c3f2f0ea891da24a8a1d6754fd89a2f6ddd6b125738a849e35719d467d9
                      SSDEEP:768:Rs6Yrdv3DXO8elehG5VPO+s5B5LAweg1tg7wbIn/nS:Rs6YlXO8uvs5Bdt7bl
                      TLSH:BB532A35B6310A23C1D6953E61B70332F6F9574E28BDCA2A3C621F4DBF616902257F98
                      File Content Preview:.ELF...........................4... .....4. ...(....................................................................dt.Q................................@..(....@.5.................#.....c...`.....!.....#...@.....".........`......$#...#...@...........`....

                      Static ELF Info

                      ELF header

                      Class:ELF32
                      Data:2's complement, big endian
                      Version:1 (current)
                      Machine:Sparc
                      Version Number:0x1
                      Type:EXEC (Executable file)
                      OS/ABI:UNIX - System V
                      ABI Version:0
                      Entry Point Address:0x101a4
                      Flags:0x0
                      ELF Header Size:52
                      Program Header Offset:52
                      Program Header Size:32
                      Number of Program Headers:3
                      Section Header Offset:63520
                      Section Header Size:40
                      Number of Section Headers:10
                      Header String Table Index:9

                      Sections

                      NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
                      NULL0x00x00x00x00x0000
                      .initPROGBITS0x100940x940x1c0x00x6AX004
                      .textPROGBITS0x100b00xb00xd70c0x00x6AX004
                      .finiPROGBITS0x1d7bc0xd7bc0x140x00x6AX004
                      .rodataPROGBITS0x1d7d00xd7d00x1c080x00x2A008
                      .ctorsPROGBITS0x2f3dc0xf3dc0x80x00x3WA004
                      .dtorsPROGBITS0x2f3e40xf3e40x80x00x3WA004
                      .dataPROGBITS0x2f3f00xf3f00x3f00x00x3WA008
                      .bssNOBITS0x2f7e00xf7e00xa2b00x00x3WA008
                      .shstrtabSTRTAB0x00xf7e00x3e0x00x0001

                      Program Segments

                      TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
                      LOAD0x00x100000x100000xf3d80xf3d86.15990x5R E0x10000.init .text .fini .rodata
                      LOAD0xf3dc0x2f3dc0x2f3dc0x4040xa6b43.50290x6RW 0x10000.ctors .dtors .data .bss
                      GNU_STACK0x00x00x00x00x00.00000x6RW 0x4

                      Network Behavior

                      Download Network PCAP: filtered – full

                      Network Port Distribution

                      • Total Packets: 10
                      • • 443 (HTTPS)
                      • • 53 (DNS)
                      TimestampSource PortDest PortSource IPDest IP
                      Mar 18, 2025 03:13:01.446090937 CET46540443192.168.2.14185.125.190.26
                      Mar 18, 2025 03:13:32.420718908 CET46540443192.168.2.14185.125.190.26
                      TimestampSource PortDest PortSource IPDest IP
                      Mar 18, 2025 03:12:59.031255960 CET4192853192.168.2.141.1.1.1
                      Mar 18, 2025 03:13:09.038743973 CET4948053192.168.2.148.8.8.8
                      Mar 18, 2025 03:13:39.061594009 CET5403953192.168.2.141.0.0.1
                      Mar 18, 2025 03:13:49.068897963 CET5188653192.168.2.148.8.8.8
                      Mar 18, 2025 03:14:19.091830969 CET3313953192.168.2.141.0.0.1
                      Mar 18, 2025 03:14:29.099762917 CET3928753192.168.2.148.8.8.8
                      Mar 18, 2025 03:14:39.106889963 CET3374753192.168.2.141.1.1.1
                      Mar 18, 2025 03:14:49.114599943 CET4513953192.168.2.141.0.0.1

                      System Behavior

                      General

                      Start time (UTC):02:12:44
                      Start date (UTC):18/03/2025
                      Path:/usr/bin/dash
                      Arguments:-
                      File size:129816 bytes
                      MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                      Process Activities


                      General

                      Start time (UTC):02:12:44
                      Start date (UTC):18/03/2025
                      Path:/usr/bin/rm
                      Arguments:rm -f /tmp/tmp.sOebLWs6dp /tmp/tmp.uTnrqRcl5a /tmp/tmp.CBHHh1bCKs
                      File size:72056 bytes
                      MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b

                      File Activities


                      General

                      Start time (UTC):02:12:44
                      Start date (UTC):18/03/2025
                      Path:/usr/bin/dash
                      Arguments:-
                      File size:129816 bytes
                      MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                      Process Activities


                      General

                      Start time (UTC):02:12:44
                      Start date (UTC):18/03/2025
                      Path:/usr/bin/rm
                      Arguments:rm -f /tmp/tmp.sOebLWs6dp /tmp/tmp.uTnrqRcl5a /tmp/tmp.CBHHh1bCKs
                      File size:72056 bytes
                      MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b

                      File Activities


                      General

                      Start time (UTC):02:12:48
                      Start date (UTC):18/03/2025
                      Path:/tmp/sync.sparc.elf
                      Arguments:/tmp/sync.sparc.elf
                      File size:4379400 bytes
                      MD5 hash:7dc1c0e23cd5e102bb12e5c29403410e

                      File Activities

                      Process Activities

                      System Activities

                      Network Activities


                      General

                      Start time (UTC):02:12:48
                      Start date (UTC):18/03/2025
                      Path:/tmp/sync.sparc.elf
                      Arguments:-
                      File size:4379400 bytes
                      MD5 hash:7dc1c0e23cd5e102bb12e5c29403410e

                      Process Activities

                      Network Activities


                      General

                      Start time (UTC):02:12:48
                      Start date (UTC):18/03/2025
                      Path:/tmp/sync.sparc.elf
                      Arguments:-
                      File size:4379400 bytes
                      MD5 hash:7dc1c0e23cd5e102bb12e5c29403410e

                      Process Activities