Joe Sandbox Cloud Basic Analysis Report

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Linux Analysis Report
CSS2FGGrkv.elf

Overview

General Information

Sample name:CSS2FGGrkv.elf
renamed because original name is a hash value
Original sample name:1e3db0836cdb18fde7ce5073c7ffd7a7.elf
Analysis ID:1431541
MD5:1e3db0836cdb18fde7ce5073c7ffd7a7
SHA1:3f442dab4484e9ec0fa34ced352ca4986a6f99e3
SHA256:98f6a02c38ad242826abc3a7d5628ffa4e1e0802c4a86215ead21001f5b9566e
Tags:32elfmirairenesas
Infos:

Detection

Score:56
Range:0 - 100
Whitelisted:false

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Detected TCP or UDP traffic on non-standard ports
Sample has stripped symbol table
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

Analysis Advice

Static ELF header machine description suggests that the sample might not execute correctly on this machine.

General Information

Joe Sandbox version:40.0.0 Tourmaline
Analysis ID:1431541
Start date and time:2024-04-25 12:20:11 +02:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 44s
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:CSS2FGGrkv.elf
renamed because original name is a hash value
Original Sample Name:1e3db0836cdb18fde7ce5073c7ffd7a7.elf
Detection:MAL
Classification:mal56.linELF@0/0@0/0

Runtime Messages

Command:/tmp/CSS2FGGrkv.elf
PID:5522
Exit Code:0
Exit Code Info:
Killed:False
Standard Output:
DaddyL33T Infected Your Shit
Standard Error:

Process Tree

  • system is lnxubuntu20
  • cleanup

Yara Signatures

⊘No yara matches

Snort Signatures

⊘No Snort rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Antivirus / Scanner detection for submitted sample
Source: CSS2FGGrkv.elfAvira: detected
Multi AV Scanner detection for submitted file
Source: CSS2FGGrkv.elfReversingLabs: Detection: 70%
Source: CSS2FGGrkv.elfVirustotal: Detection: 57%Perma Link
Source: global trafficTCP traffic: 192.168.2.15:37202 -> 209.14.69.249:666
Source: unknownTCP traffic detected without corresponding DNS query: 209.14.69.249
Source: unknownTCP traffic detected without corresponding DNS query: 209.14.69.249
Source: unknownTCP traffic detected without corresponding DNS query: 209.14.69.249
Source: unknownTCP traffic detected without corresponding DNS query: 209.14.69.249
Source: unknownTCP traffic detected without corresponding DNS query: 209.14.69.249
Source: unknownTCP traffic detected without corresponding DNS query: 209.14.69.249
Source: unknownTCP traffic detected without corresponding DNS query: 209.14.69.249
Source: unknownTCP traffic detected without corresponding DNS query: 209.14.69.249
Source: unknownTCP traffic detected without corresponding DNS query: 209.14.69.249
Source: unknownTCP traffic detected without corresponding DNS query: 209.14.69.249
Source: unknownTCP traffic detected without corresponding DNS query: 209.14.69.249
Source: unknownTCP traffic detected without corresponding DNS query: 209.14.69.249
Source: unknownTCP traffic detected without corresponding DNS query: 209.14.69.249
Source: unknownTCP traffic detected without corresponding DNS query: 209.14.69.249
Source: ELF static info symbol of initial sample.symtab present: no
Source: classification engineClassification label: mal56.linELF@0/0@0/0
Source: /tmp/CSS2FGGrkv.elf (PID: 5522)Queries kernel information via 'uname': Jump to behavior
Source: CSS2FGGrkv.elf, 5522.1.00007ffdd8814000.00007ffdd8835000.rw-.sdmp, CSS2FGGrkv.elf, 5524.1.00007ffdd8814000.00007ffdd8835000.rw-.sdmp, CSS2FGGrkv.elf, 5528.1.00007ffdd8814000.00007ffdd8835000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-sh4/tmp/CSS2FGGrkv.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/CSS2FGGrkv.elf
Source: CSS2FGGrkv.elf, 5522.1.00007ffdd8814000.00007ffdd8835000.rw-.sdmp, CSS2FGGrkv.elf, 5524.1.00007ffdd8814000.00007ffdd8835000.rw-.sdmp, CSS2FGGrkv.elf, 5528.1.00007ffdd8814000.00007ffdd8835000.rw-.sdmpBinary or memory string: /usr/bin/qemu-sh4
Source: CSS2FGGrkv.elf, 5522.1.000055fb73ee1000.000055fb73f44000.rw-.sdmp, CSS2FGGrkv.elf, 5524.1.000055fb73ee1000.000055fb73f44000.rw-.sdmp, CSS2FGGrkv.elf, 5528.1.000055fb73ee1000.000055fb73f44000.rw-.sdmpBinary or memory string: U5!/etc/qemu-binfmt/sh4
Source: CSS2FGGrkv.elf, 5522.1.000055fb73ee1000.000055fb73f44000.rw-.sdmp, CSS2FGGrkv.elf, 5524.1.000055fb73ee1000.000055fb73f44000.rw-.sdmp, CSS2FGGrkv.elf, 5528.1.000055fb73ee1000.000055fb73f44000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/sh4

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
Non-Standard Port		Exfiltration Over Other Network MediumAbuse Accessibility Features

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: 1431541 Sample: CSS2FGGrkv.elf Startdate: 25/04/2024 Architecture: LINUX Score: 56 16 209.14.69.249, 37202, 666 AS6220US United States 2->16 18 Antivirus / Scanner detection for submitted sample 2->18 20 Multi AV Scanner detection for submitted file 2->20 8 CSS2FGGrkv.elf 2->8         started        signatures3 process4 process5 10 CSS2FGGrkv.elf 8->10         started        12 CSS2FGGrkv.elf 8->12         started        process6 14 CSS2FGGrkv.elf 10->14         started       

Screenshots

Thumbnails

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


windows-stand

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

SourceDetectionScannerLabelLink
CSS2FGGrkv.elf70%ReversingLabsLinux.Trojan.Mirai
CSS2FGGrkv.elf57%VirustotalBrowse
CSS2FGGrkv.elf100%AviraEXP/ELF.Mirai.T

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

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
209.14.69.249
unknownUnited States
6220AS6220USfalse

Joe Sandbox View / Context

IPs

⊘No context

Domains

⊘No context

ASNs

MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
AS6220USsora.armGet hashmaliciousMiraiBrowse
  • 207.166.94.107
s422uUu30YGet hashmaliciousMiraiBrowse
  • 209.14.76.114
37F1aDw0RcGet hashmaliciousMiraiBrowse
  • 207.166.94.118

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):6.736941137707603
TrID:
  • ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:CSS2FGGrkv.elf
File size:48'976 bytes
MD5:1e3db0836cdb18fde7ce5073c7ffd7a7
SHA1:3f442dab4484e9ec0fa34ced352ca4986a6f99e3
SHA256:98f6a02c38ad242826abc3a7d5628ffa4e1e0802c4a86215ead21001f5b9566e
SHA512:5fbde963d4eb827abb34a00b28f03fe4ef1d5b1a7b2b31c9093df8ddeb26bf61c4c1f9e781130881d709cde9debc50c2ba42735e04389a966b43a8111fd9eaf1
SSDEEP:768:Mbaves4MYeZGG7VJwt1pfwHU6g4TOLEECcoAtPdp+:yavEJORJwt+goOLEEoA/p
TLSH:FA238D76C96AAED4DC588174AC35EE741B93F00983662EF71AC584BA404FF78F6093E1
File Content Preview:.ELF..............*.......@.4...........4. ...(...............@...@.X...X...............\...\.A.\.A.$...P...........Q.td............................././"O.n........#.*@........#.*@,....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:48576
Section Header Size:40
Number of Section Headers:10
Header String Table Index:9

Sections

NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
NULL0x00x00x00x00x0000
.initPROGBITS0x4000940x940x300x00x6AX004
.textPROGBITS0x4000e00xe00xa9400x00x6AX0032
.finiPROGBITS0x40aa200xaa200x240x00x6AX004
.rodataPROGBITS0x40aa440xaa440x11140x00x2A004
.ctorsPROGBITS0x41bb5c0xbb5c0x80x00x3WA004
.dtorsPROGBITS0x41bb640xbb640x80x00x3WA004
.dataPROGBITS0x41bb700xbb700x2100x00x3WA004
.bssNOBITS0x41bd800xbd800x22c0x00x3WA004
.shstrtabSTRTAB0x00xbd800x3e0x00x0001

Program Segments

TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
LOAD0x00x4000000x4000000xbb580xbb586.78350x5R E0x10000.init .text .fini .rodata
LOAD0xbb5c0x41bb5c0x41bb5c0x2240x4503.00180x6RW 0x10000.ctors .dtors .data .bss
GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

Network Behavior

Network Port Distribution

TCP Packets

TimestampSource PortDest PortSource IPDest IP
Apr 25, 2024 12:20:54.900849104 CEST37202666192.168.2.15209.14.69.249
Apr 25, 2024 12:20:55.142981052 CEST66637202209.14.69.249192.168.2.15
Apr 25, 2024 12:20:55.143065929 CEST37202666192.168.2.15209.14.69.249
Apr 25, 2024 12:20:55.143368006 CEST37202666192.168.2.15209.14.69.249
Apr 25, 2024 12:20:55.385252953 CEST66637202209.14.69.249192.168.2.15
Apr 25, 2024 12:20:55.385530949 CEST37202666192.168.2.15209.14.69.249
Apr 25, 2024 12:20:55.627599955 CEST66637202209.14.69.249192.168.2.15
Apr 25, 2024 12:21:05.151191950 CEST37202666192.168.2.15209.14.69.249
Apr 25, 2024 12:21:05.393227100 CEST66637202209.14.69.249192.168.2.15
Apr 25, 2024 12:21:05.393294096 CEST66637202209.14.69.249192.168.2.15
Apr 25, 2024 12:21:05.393385887 CEST37202666192.168.2.15209.14.69.249
Apr 25, 2024 12:21:20.656470060 CEST66637202209.14.69.249192.168.2.15
Apr 25, 2024 12:21:20.656641960 CEST37202666192.168.2.15209.14.69.249
Apr 25, 2024 12:21:35.901446104 CEST66637202209.14.69.249192.168.2.15
Apr 25, 2024 12:21:35.901722908 CEST37202666192.168.2.15209.14.69.249
Apr 25, 2024 12:21:51.150660038 CEST66637202209.14.69.249192.168.2.15
Apr 25, 2024 12:21:51.151015997 CEST37202666192.168.2.15209.14.69.249
Apr 25, 2024 12:22:05.438333988 CEST37202666192.168.2.15209.14.69.249
Apr 25, 2024 12:22:05.682982922 CEST66637202209.14.69.249192.168.2.15
Apr 25, 2024 12:22:05.683228970 CEST37202666192.168.2.15209.14.69.249
Apr 25, 2024 12:22:20.976227045 CEST66637202209.14.69.249192.168.2.15
Apr 25, 2024 12:22:20.976556063 CEST37202666192.168.2.15209.14.69.249
Apr 25, 2024 12:22:36.219182968 CEST66637202209.14.69.249192.168.2.15
Apr 25, 2024 12:22:36.219436884 CEST37202666192.168.2.15209.14.69.249
Apr 25, 2024 12:22:51.461179018 CEST66637202209.14.69.249192.168.2.15
Apr 25, 2024 12:22:51.461641073 CEST37202666192.168.2.15209.14.69.249

System Behavior

General

Start time (UTC):10:20:54
Start date (UTC):25/04/2024
Path:/tmp/CSS2FGGrkv.elf
Arguments:/tmp/CSS2FGGrkv.elf
File size:4139976 bytes
MD5 hash:8943e5f8f8c280467b4472c15ae93ba9

Chronological Activities


General

Start time (UTC):10:20:54
Start date (UTC):25/04/2024
Path:/tmp/CSS2FGGrkv.elf
Arguments:-
File size:4139976 bytes
MD5 hash:8943e5f8f8c280467b4472c15ae93ba9

Chronological Activities


General

Start time (UTC):10:20:54
Start date (UTC):25/04/2024
Path:/tmp/CSS2FGGrkv.elf
Arguments:-
File size:4139976 bytes
MD5 hash:8943e5f8f8c280467b4472c15ae93ba9

Chronological Activities


General

Start time (UTC):10:20:54
Start date (UTC):25/04/2024
Path:/tmp/CSS2FGGrkv.elf
Arguments:-
File size:4139976 bytes
MD5 hash:8943e5f8f8c280467b4472c15ae93ba9

Chronological Activities