Joe Sandbox Cloud Basic Analysis Report
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Linux Analysis Report
harm4.elf

Overview

General Information

Sample name:harm4.elf
Analysis ID:1675270
MD5:9b8f62d6a1b42f0a130fc5e032ee7736
SHA1:92fb7c36d3568003eee886e66453cf6c1de23b11
SHA256:0b666b90d734b597f3a841bb0ea7da1f3af54dc3d447a5b41e0bd5e30e4462a9
Tags:elfuser-abuse_ch

Detection

Score:48
Range:0 - 100

Signatures

Multi AV Scanner detection for submitted file
Sample has stripped symbol table
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:1675270
Start date and time:2025-04-27 03:15:19 +02:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 17s
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:harm4.elf
Detection:MAL
Classification:mal48.linELF@0/0@0/0

Runtime Messages

Command:/tmp/harm4.elf
PID:5426
Exit Code:1
Exit Code Info:
Killed:False
Standard Output:

Standard Error:

Process Tree

  • system is lnxubuntu20
  • harm4.elf (PID: 5426, Parent: 5351, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/harm4.elf
  • cleanup

Yara Signatures

⊘No yara matches

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

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

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: harm4.elfReversingLabs: Detection: 16%
Source: ELF static info symbol of initial sample.symtab present: no
Source: classification engineClassification label: mal48.linELF@0/0@0/0
Source: /tmp/harm4.elf (PID: 5426)Queries kernel information via 'uname': Jump to behavior
Source: harm4.elf, 5426.1.00007ffd9f816000.00007ffd9f837000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-arm/tmp/harm4.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/harm4.elf
Source: harm4.elf, 5426.1.0000563e6c37d000.0000563e6c4ab000.rw-.sdmpBinary or memory string: C9l>VPE9l>VPB9l>V!/etc/qemu-binfmt/arm
Source: harm4.elf, 5426.1.0000563e6c37d000.0000563e6c4ab000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: harm4.elf, 5426.1.00007ffd9f816000.00007ffd9f837000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm

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 SystemData ObfuscationExfiltration Over Other Network MediumAbuse Accessibility Features

Malware Configuration

⊘No configs have been found

Behavior Graph

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Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Number of created Files
  • Is malicious
  • Internet
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1675270 Sample: harm4.elf Startdate: 27/04/2025 Architecture: LINUX Score: 48 7 Multi AV Scanner detection for submitted file 2->7 5 harm4.elf 2->5         started        process3

Screenshots

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Thumbnails

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windows-stand

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

SourceDetectionScannerLabelLink
harm4.elf17%ReversingLabsLinux.Worm.Mirai

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 contacted IP infos

Joe Sandbox View / Context

IPs

⊘No context

Domains

⊘No context

ASNs

⊘No context

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, ARM, version 1 (ARM), statically linked, stripped
Entropy (8bit):6.064330756066944
TrID:
  • ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:harm4.elf
File size:72'340 bytes
MD5:9b8f62d6a1b42f0a130fc5e032ee7736
SHA1:92fb7c36d3568003eee886e66453cf6c1de23b11
SHA256:0b666b90d734b597f3a841bb0ea7da1f3af54dc3d447a5b41e0bd5e30e4462a9
SHA512:84448df1f47e2eca22987b941875471fba8d1ad5eae44804c853b57cf9ece40bf309d09396cd75aba958cf10dbcc2d7f2167b107d7f7b39980e891e586f4144f
SSDEEP:1536:iAEVV0bZ8W4T0mjtT+CcfDdUDu1wm2XOJJyaEvibuvTM:iAE06W4T0mjt5YdUDujP0I
TLSH:41633A91BC815A13C6D1127BFF6E428D372613A8E2EA7307DD256F21778782B0E7B142
File Content Preview:.ELF...a..........(.........4...........4. ...(.....................X...X...............\...\...\...h....S..........Q.td..................................-...L."...^?..........0@-.\P...0....S.0...P@...0... ....R......0...0...........0... ....R..... 0....S

Static ELF Info

ELF header

Class:ELF32
Data:2's complement, little endian
Version:1 (current)
Machine:ARM
Version Number:0x1
Type:EXEC (Executable file)
OS/ABI:ARM - ABI
ABI Version:0
Entry Point Address:0x8190
Flags:0x202
ELF Header Size:52
Program Header Offset:52
Program Header Size:32
Number of Program Headers:3
Section Header Offset:71940
Section Header Size:40
Number of Section Headers:10
Header String Table Index:9

Sections

NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
NULL0x00x00x00x00x0000
.initPROGBITS0x80940x940x180x00x6AX004
.textPROGBITS0x80b00xb00xfdb00x00x6AX0016
.finiPROGBITS0x17e600xfe600x140x00x6AX004
.rodataPROGBITS0x17e740xfe740x16e40x00x2A004
.ctorsPROGBITS0x2155c0x1155c0x80x00x3WA004
.dtorsPROGBITS0x215640x115640x80x00x3WA004
.dataPROGBITS0x215700x115700x3540x00x3WA004
.bssNOBITS0x218c40x118c40x50680x00x3WA004
.shstrtabSTRTAB0x00x118c40x3e0x00x0001

Program Segments

TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
LOAD0x00x80000x80000x115580x115586.09650x5R E0x8000.init .text .fini .rodata
LOAD0x1155c0x2155c0x2155c0x3680x53d02.61550x6RW 0x8000.ctors .dtors .data .bss
GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

Network Behavior

⊘No network behavior found

System Behavior

General

Start time (UTC):01:16:02
Start date (UTC):27/04/2025
Path:/tmp/harm4.elf
Arguments:/tmp/harm4.elf
File size:4956856 bytes
MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

File Activities

Process Activities

System Activities