Joe Sandbox Cloud Basic Analysis Report
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Linux Analysis Report
sh4.elf

Overview

General Information

Sample name:sh4.elf
Analysis ID:1617156
MD5:31ee820ff733f84f8cb04dd140fbc848
SHA1:974a0fa4784ce7ce4077ae65baf1ca6abe271138
SHA256:e57116eb6f4c83beab37d3fc97b86a4031a7c94bd0de9d98584b5403b3d92822
Tags:elfuser-abuse_ch
Infos:

Detection

Score:48
Range:0 - 100

Signatures

Multi AV Scanner detection for submitted file
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:1617156
Start date and time:2025-02-17 15:37:29 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 21s
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:mal48.linELF@0/0@0/0

Runtime Messages

Command:/tmp/sh4.elf
PID:5429
Exit Code:1
Exit Code Info:
Killed:False
Standard Output:

Standard Error:

Process Tree

  • system is lnxubuntu20
  • sh4.elf (PID: 5429, Parent: 5351, MD5: 8943e5f8f8c280467b4472c15ae93ba9) Arguments: /tmp/sh4.elf
  • cleanup

Yara Signatures

⊘No yara matches

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

  • • AV Detection
  • • Networking
  • • System Summary
  • • Malware Analysis System Evasion

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: sh4.elfReversingLabs: Detection: 18%
Source: global trafficTCP traffic: 192.168.2.13:48202 -> 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: unknownNetwork traffic detected: HTTP traffic on port 48202 -> 443
Source: ELF static info symbol of initial sample.symtab present: no
Source: classification engineClassification label: mal48.linELF@0/0@0/0
Source: /tmp/sh4.elf (PID: 5429)Queries kernel information via 'uname': Jump to behavior
Source: sh4.elf, 5429.1.00007ffded8a6000.00007ffded8c7000.rw-.sdmpBinary or memory string: /usr/bin/qemu-sh4
Source: sh4.elf, 5429.1.000055d1fdb91000.000055d1fdbf4000.rw-.sdmpBinary or memory string: U5!/etc/qemu-binfmt/sh4
Source: sh4.elf, 5429.1.000055d1fdb91000.000055d1fdbf4000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/sh4
Source: sh4.elf, 5429.1.00007ffded8a6000.00007ffded8c7000.rw-.sdmpBinary or memory string: x86_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

Mitre Att&ck Matrix

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
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: 1617156 Sample: sh4.elf Startdate: 17/02/2025 Architecture: LINUX Score: 48 8 185.125.190.26, 443 CANONICAL-ASGB United Kingdom 2->8 10 Multi AV Scanner detection for submitted file 2->10 6 sh4.elf 2->6         started        signatures3 process4

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

SourceDetectionScannerLabelLink
sh4.elf19%ReversingLabsLinux.Backdoor.Gafgyt

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
185.125.190.26kre4per.mpsl.elfGet hashmaliciousUnknownBrowse
    kre4per.x86.elfGet hashmaliciousUnknownBrowse
      kre4per.arm7.elfGet hashmaliciousMiraiBrowse
        sh4.elfGet hashmaliciousUnknownBrowse
          na.elfGet hashmaliciousPrometeiBrowse
            a-r.m-4.Sakura.elfGet hashmaliciousGafgyt, MiraiBrowse
              m-6.8-k.Sakura.elfGet hashmaliciousGafgyt, MiraiBrowse
                main_x86.elfGet hashmaliciousMiraiBrowse
                  na.elfGet hashmaliciousPrometeiBrowse
                    linux_mipsel_softfloat.elfGet hashmaliciousChaosBrowse

                      Domains

                      ⊘No context

                      ASNs

                      MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
                      CANONICAL-ASGBnshsh4.elfGet hashmaliciousUnknownBrowse
                      • 91.189.91.42
                      194.32.145.243-i-2025-02-17T12_20_09.elfGet hashmaliciousGafgytBrowse
                      • 91.189.91.42
                      na.elfGet hashmaliciousPrometeiBrowse
                      • 91.189.91.42
                      sshd.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
                      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 LSB executable, Renesas SH, version 1 (SYSV), statically linked, stripped
                      Entropy (8bit):6.809337557745318
                      TrID:
                      • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                      File name:sh4.elf
                      File size:62'776 bytes
                      MD5:31ee820ff733f84f8cb04dd140fbc848
                      SHA1:974a0fa4784ce7ce4077ae65baf1ca6abe271138
                      SHA256:e57116eb6f4c83beab37d3fc97b86a4031a7c94bd0de9d98584b5403b3d92822
                      SHA512:7b6035e9cd359e7b92c0f18153165ddc9056cdbb26e515aeb6d34fb820c109eb5c5651d805e7bce348f3b80eea25f8ec10147aa337d535e71988f3859be3cee0
                      SSDEEP:1536:xv/iDe7knPIe/FK2oJn7EotwCCo4JY4zNtm:xSSytM2CBtwCY2KNtm
                      TLSH:94538C73CC2B2E58C59886F17870CF756723A58081A71EFA599AC67A4043ECCF6063F8
                      File Content Preview:.ELF..............*.......@.4...........4. ...(...............@...@...........................A...A.h....S..........Q.td............................././"O.n........#.*@........#.*@L....o&O.n...l..............................././.../.a"O.!...n...a.b("...q.

                      Static ELF Info

                      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:0x4001a0
                      Flags:0x9
                      ELF Header Size:52
                      Program Header Offset:52
                      Program Header Size:32
                      Number of Program Headers:3
                      Section Header Offset:62376
                      Section Header Size:40
                      Number of Section Headers:10
                      Header String Table Index:9

                      Sections

                      NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
                      NULL0x00x00x00x00x0000
                      .initPROGBITS0x4000940x940x300x00x6AX004
                      .textPROGBITS0x4000e00xe00xd5600x00x6AX0032
                      .finiPROGBITS0x40d6400xd6400x240x00x6AX004
                      .rodataPROGBITS0x40d6640xd6640x171c0x00x2A004
                      .ctorsPROGBITS0x41f0000xf0000x80x00x3WA004
                      .dtorsPROGBITS0x41f0080xf0080x80x00x3WA004
                      .dataPROGBITS0x41f0140xf0140x3540x00x3WA004
                      .bssNOBITS0x41f3680xf3680x50680x00x3WA004
                      .shstrtabSTRTAB0x00xf3680x3e0x00x0001

                      Program Segments

                      TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
                      LOAD0x00x4000000x4000000xed800xed806.89890x5R E0x10000.init .text .fini .rodata
                      LOAD0xf0000x41f0000x41f0000x3680x53d02.71910x6RW 0x10000.ctors .dtors .data .bss
                      GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

                      Network Behavior

                      Download Network PCAP: filtered – full

                      TimestampSource PortDest PortSource IPDest IP
                      Feb 17, 2025 15:38:20.194200993 CET48202443192.168.2.13185.125.190.26
                      Feb 17, 2025 15:38:50.658325911 CET48202443192.168.2.13185.125.190.26

                      System Behavior

                      General

                      Start time (UTC):14:38:08
                      Start date (UTC):17/02/2025
                      Path:/tmp/sh4.elf
                      Arguments:/tmp/sh4.elf
                      File size:4139976 bytes
                      MD5 hash:8943e5f8f8c280467b4472c15ae93ba9

                      File Activities

                      Process Activities

                      System Activities