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Linux Analysis Report
sh4.elf

Overview

General Information

Sample name:sh4.elf
Analysis ID:1589772
MD5:b1fab035fef1a4ca50d4d6229a63fb1e
SHA1:61f71b5fbbaf52f7c5c5a05dd84964ca9e776f33
SHA256:10b7747e0f87f4dd6e4035208022fd00bf82a0f2f550637545f070c07b6b3e2e
Tags:elfuser-abuse_ch
Infos:

Detection

Score:56
Range:0 - 100
Whitelisted:false

Signatures

Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Detected TCP or UDP traffic on non-standard ports
Sample has stripped symbol table
Sample listens on a socket
Uses the "uname" system call to query kernel version information (possible evasion)
Yara signature match

Classification

Joe Sandbox version:42.0.0 Malachite
Analysis ID:1589772
Start date and time:2025-01-13 06:16:07 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 28s
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:sh4.elf
Detection:MAL
Classification:mal56.linELF@0/0@0/0
Command:/tmp/sh4.elf
PID:5433
Exit Code:0
Exit Code Info:
Killed:False
Standard Output:
wormbot
Standard Error:
  • system is lnxubuntu20
  • sh4.elf (PID: 5433, Parent: 5357, MD5: 8943e5f8f8c280467b4472c15ae93ba9) Arguments: /tmp/sh4.elf
    • sh4.elf New Fork (PID: 5435, Parent: 5433)
  • cleanup
SourceRuleDescriptionAuthorStrings
sh4.elfLinux_Trojan_Gafgyt_28a2fe0cunknownunknown
  • 0xb640:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb654:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb668:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb67c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb690:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb6a4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb6b8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb6cc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb6e0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb6f4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb708:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb71c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb730:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb744:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb758:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb76c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb780:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb794:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb7a8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb7bc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb7d0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
SourceRuleDescriptionAuthorStrings
5433.1.00007f6238400000.00007f623840d000.r-x.sdmpLinux_Trojan_Gafgyt_28a2fe0cunknownunknown
  • 0xb640:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb654:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb668:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb67c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb690:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb6a4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb6b8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb6cc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb6e0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb6f4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb708:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb71c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb730:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb744:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb758:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb76c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb780:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb794:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb7a8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb7bc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
  • 0xb7d0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: sh4.elfReversingLabs: Detection: 23%
Source: global trafficTCP traffic: 192.168.2.13:45926 -> 85.239.34.134:999
Source: /tmp/sh4.elf (PID: 5433)Socket: 127.0.0.1:7567Jump to behavior
Source: unknownTCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknownTCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknownTCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknownTCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknownTCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknownTCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknownTCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknownTCP traffic detected without corresponding DNS query: 85.239.34.134

System Summary

barindex
Source: sh4.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5433.1.00007f6238400000.00007f623840d000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: ELF static info symbol of initial sample.symtab present: no
Source: sh4.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: 5433.1.00007f6238400000.00007f623840d000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: classification engineClassification label: mal56.linELF@0/0@0/0
Source: /tmp/sh4.elf (PID: 5433)Queries kernel information via 'uname': Jump to behavior
Source: sh4.elf, 5433.1.00007ffd7ff35000.00007ffd7ff56000.rw-.sdmpBinary or memory string: Gpx86_64/usr/bin/qemu-sh4/tmp/sh4.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/sh4.elf
Source: sh4.elf, 5433.1.00007ffd7ff35000.00007ffd7ff56000.rw-.sdmpBinary or memory string: /usr/bin/qemu-sh4
Source: sh4.elf, 5433.1.00005619d078d000.00005619d07f0000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/sh4
Source: sh4.elf, 5433.1.00005619d078d000.00005619d07f0000.rw-.sdmpBinary or memory string: V5!/etc/qemu-binfmt/sh4
ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
Gather Victim Identity InformationAcquire InfrastructureValid AccountsWindows Management InstrumentationPath InterceptionPath InterceptionDirect Volume AccessOS Credential Dumping11
Security Software Discovery
Remote ServicesData from Local System1
Non-Standard Port
Exfiltration Over Other Network MediumAbuse Accessibility Features
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
sh4.elf24%ReversingLabsLinux.Trojan.Mirai
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
85.239.34.134
unknownRussian Federation
134121RAINBOW-HKRainbownetworklimitedHKfalse
MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
85.239.34.134x86.elfGet hashmaliciousUnknownBrowse
    arm5.elfGet hashmaliciousUnknownBrowse
      spc.elfGet hashmaliciousUnknownBrowse
        harm.elfGet hashmaliciousUnknownBrowse
          arm6.elfGet hashmaliciousUnknownBrowse
            mpsl.elfGet hashmaliciousUnknownBrowse
              arm.elfGet hashmaliciousUnknownBrowse
                sh4.elfGet hashmaliciousUnknownBrowse
                  m68k.elfGet hashmaliciousMiraiBrowse
                    x86.elfGet hashmaliciousMiraiBrowse
                      No context
                      MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
                      RAINBOW-HKRainbownetworklimitedHKx86.elfGet hashmaliciousUnknownBrowse
                      • 85.239.34.134
                      arm5.elfGet hashmaliciousUnknownBrowse
                      • 85.239.34.134
                      spc.elfGet hashmaliciousUnknownBrowse
                      • 85.239.34.134
                      harm.elfGet hashmaliciousUnknownBrowse
                      • 85.239.34.134
                      arm6.elfGet hashmaliciousUnknownBrowse
                      • 85.239.34.134
                      mpsl.elfGet hashmaliciousUnknownBrowse
                      • 85.239.34.134
                      arm.elfGet hashmaliciousUnknownBrowse
                      • 85.239.34.134
                      sh4.elfGet hashmaliciousUnknownBrowse
                      • 85.239.34.134
                      m68k.elfGet hashmaliciousMiraiBrowse
                      • 85.239.34.134
                      x86.elfGet hashmaliciousMiraiBrowse
                      • 85.239.34.134
                      No context
                      No context
                      No created / dropped files found
                      File type:ELF 32-bit LSB executable, Renesas SH, version 1 (SYSV), statically linked, stripped
                      Entropy (8bit):6.805812220385492
                      TrID:
                      • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                      File name:sh4.elf
                      File size:51'400 bytes
                      MD5:b1fab035fef1a4ca50d4d6229a63fb1e
                      SHA1:61f71b5fbbaf52f7c5c5a05dd84964ca9e776f33
                      SHA256:10b7747e0f87f4dd6e4035208022fd00bf82a0f2f550637545f070c07b6b3e2e
                      SHA512:1b1e334d4edc098874c79ed00bca1cbe53145082957ba138aa1a013385ae39dd1eb97666e3c6fc84bfc29d6a6d280f78b2953afce762818df3d74185b2750047
                      SSDEEP:768:9toJpbEoAsjiR33Z2taf82OvVdor+rjNO36qwx4gUw:9tUpHji1Zf8jdor+lO36mgV
                      TLSH:1A337E66E5211F93C40696787438DF3C0F2321E193967DB26E268AF40887D5EF859FE8
                      File Content Preview:.ELF..............*.......@.4...........4. ...(...............@...@...........................@...@.(...03....................@...@.................Q.td............................././"O.n........#.*@........#.*@,....o&O.n...l.............................

                      ELF header

                      Class:ELF32
                      Data:2's complement, little endian
                      Version:1 (current)
                      Machine:<unknown>
                      Version Number:0x1
                      Type:EXEC (Executable file)
                      OS/ABI:UNIX - System V
                      ABI Version:0
                      Entry Point Address:0x4001c0
                      Flags:0x9
                      ELF Header Size:52
                      Program Header Offset:52
                      Program Header Size:32
                      Number of Program Headers:4
                      Section Header Offset:50840
                      Section Header Size:40
                      Number of Section Headers:14
                      Header String Table Index:13
                      NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
                      NULL0x00x00x00x00x0000
                      .initPROGBITS0x4000b40xb40x300x00x6AX004
                      .textPROGBITS0x4001000x1000xb4400x00x6AX0032
                      .finiPROGBITS0x40b5400xb5400x240x00x6AX004
                      .rodataPROGBITS0x40b5640xb5640xcb20x00x2A004
                      .eh_framePROGBITS0x40d2180xc2180x7c0x00x3WA004
                      .tbssNOBITS0x40d2940xc2940x80x00x403WAT004
                      .ctorsPROGBITS0x40d2940xc2940x80x00x3WA004
                      .dtorsPROGBITS0x40d29c0xc29c0x80x00x3WA004
                      .jcrPROGBITS0x40d2a40xc2a40x40x00x3WA004
                      .dataPROGBITS0x40d2a80xc2a80x3840x00x3WA004
                      .gotPROGBITS0x40d62c0xc62c0x140x40x3WA004
                      .bssNOBITS0x40d6400xc6400x2f080x00x3WA004
                      .shstrtabSTRTAB0x00xc6400x580x00x0001
                      TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
                      LOAD0x00x4000000x4000000xc2160xc2166.84900x5R E0x1000.init .text .fini .rodata
                      LOAD0xc2180x40d2180x40d2180x4280x33304.92130x6RW 0x1000.eh_frame .tbss .ctors .dtors .jcr .data .got .bss
                      TLS0xc2940x40d2940x40d2940x00x80.00000x4R 0x4.tbss
                      GNU_STACK0x00x00x00x00x00.00000x7RWE0x4
                      TimestampSource PortDest PortSource IPDest IP
                      Jan 13, 2025 06:16:54.555823088 CET45926999192.168.2.1385.239.34.134
                      Jan 13, 2025 06:16:54.560913086 CET9994592685.239.34.134192.168.2.13
                      Jan 13, 2025 06:16:54.560969114 CET45926999192.168.2.1385.239.34.134
                      Jan 13, 2025 06:16:54.561188936 CET45926999192.168.2.1385.239.34.134
                      Jan 13, 2025 06:16:54.566051006 CET9994592685.239.34.134192.168.2.13
                      Jan 13, 2025 06:16:54.566132069 CET45926999192.168.2.1385.239.34.134
                      Jan 13, 2025 06:16:54.571026087 CET9994592685.239.34.134192.168.2.13
                      Jan 13, 2025 06:17:04.571748972 CET45926999192.168.2.1385.239.34.134
                      Jan 13, 2025 06:17:04.576947927 CET9994592685.239.34.134192.168.2.13
                      Jan 13, 2025 06:17:04.793167114 CET9994592685.239.34.134192.168.2.13
                      Jan 13, 2025 06:17:04.793422937 CET45926999192.168.2.1385.239.34.134
                      Jan 13, 2025 06:18:04.854646921 CET45926999192.168.2.1385.239.34.134
                      Jan 13, 2025 06:18:04.860598087 CET9994592685.239.34.134192.168.2.13
                      Jan 13, 2025 06:18:05.077505112 CET9994592685.239.34.134192.168.2.13
                      Jan 13, 2025 06:18:05.077718019 CET45926999192.168.2.1385.239.34.134

                      System Behavior

                      Start time (UTC):05:16:53
                      Start date (UTC):13/01/2025
                      Path:/tmp/sh4.elf
                      Arguments:/tmp/sh4.elf
                      File size:4139976 bytes
                      MD5 hash:8943e5f8f8c280467b4472c15ae93ba9

                      Start time (UTC):05:16:53
                      Start date (UTC):13/01/2025
                      Path:/tmp/sh4.elf
                      Arguments:-
                      File size:4139976 bytes
                      MD5 hash:8943e5f8f8c280467b4472c15ae93ba9