Linux
Analysis Report
.i.elf
Overview
General Information
Sample name: | .i.elf |
Analysis ID: | 1648048 |
MD5: | 4b3bd86fe87d83d973e66b4cde031058 |
SHA1: | 28c100f504c469f1b5118865e8d8e9c70a767664 |
SHA256: | 4dba95235a05789b47de3df4859c663cd58e48a03381d18a50c81a56107f5a65 |
Tags: | elfuser-abuse_ch |
Infos: |
Detection
Score: | 48 |
Range: | 0 - 100 |
Signatures
Multi AV Scanner detection for submitted file
ELF contains segments with high entropy indicating compressed/encrypted content
Sample contains only a LOAD segment without any section mappings
Uses the "uname" system call to query kernel version information (possible evasion)
Classification
Joe Sandbox version: | 42.0.0 Malachite |
Analysis ID: | 1648048 |
Start date and time: | 2025-03-25 14:11:31 +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: | .i.elf |
Detection: | MAL |
Classification: | mal48.linELF@0/0@2/0 |
Command: | /tmp/.i.elf |
PID: | 5414 |
Exit Code: | 139 |
Exit Code Info: | SIGSEGV (11) Segmentation fault invalid memory reference |
Killed: | False |
Standard Output: | |
Standard Error: | qemu: uncaught target signal 11 (Segmentation fault) - core dumped |
- system is lnxubuntu20
- cleanup
⊘No yara matches
⊘No Suricata rule has matched
- • AV Detection
- • Networking
- • System Summary
- • Hooking and other Techniques for Hiding and Protection
- • Malware Analysis System Evasion
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Virustotal: | Perma Link | ||
Source: | ReversingLabs: |
Source: | UDP traffic detected without corresponding DNS query: | ||
Source: | UDP traffic detected without corresponding DNS query: |
Source: | DNS traffic detected: |
Source: | Program segment: |
Source: | Classification label: |
Source: | Submission file: |
Source: | Queries kernel information via 'uname': | Jump to behavior |
Source: | Binary or memory string: | ||
Source: | Binary or memory string: | ||
Source: | Binary or memory string: | ||
Source: | Binary or memory string: | ||
Source: | Binary or memory string: |
Reconnaissance | Resource Development | Initial Access | Execution | Persistence | Privilege Escalation | Defense Evasion | Credential Access | Discovery | Lateral Movement | Collection | Command and Control | Exfiltration | Impact |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gather Victim Identity Information | Acquire Infrastructure | Valid Accounts | Windows Management Instrumentation | Path Interception | Path Interception | 1 Obfuscated Files or Information | OS Credential Dumping | 11 Security Software Discovery | Remote Services | Data from Local System | 1 Non-Application Layer Protocol | Exfiltration Over Other Network Medium | Abuse Accessibility Features |
Credentials | Domains | Default Accounts | Scheduled Task/Job | Boot or Logon Initialization Scripts | Boot or Logon Initialization Scripts | Rootkit | LSASS Memory | Application Window Discovery | Remote Desktop Protocol | Data from Removable Media | 1 Application Layer Protocol | Exfiltration Over Bluetooth | Network Denial of Service |
⊘No configs have been found
Source | Detection | Scanner | Label | Link |
---|---|---|---|---|
27% | Virustotal | Browse | ||
53% | ReversingLabs | Linux.Backdoor.Mirai |
⊘No Antivirus matches
⊘No Antivirus matches
⊘No Antivirus matches
Name | IP | Active | Malicious | Antivirus Detection | Reputation |
---|---|---|---|---|---|
daisy.ubuntu.com | 162.213.35.25 | true | false | high |
⊘No contacted IP infos
⊘No context
Match | Associated Sample Name / URL | SHA 256 | Detection | Threat Name | Link | Context |
---|---|---|---|---|---|---|
daisy.ubuntu.com | Get hash | malicious | Unknown | Browse |
| |
Get hash | malicious | Unknown | Browse |
| ||
Get hash | malicious | Unknown | Browse |
| ||
Get hash | malicious | Mirai | Browse |
| ||
Get hash | malicious | Unknown | Browse |
| ||
Get hash | malicious | Unknown | Browse |
| ||
Get hash | malicious | Mirai | Browse |
| ||
Get hash | malicious | Mirai | Browse |
| ||
Get hash | malicious | Unknown | Browse |
| ||
Get hash | malicious | Mirai | Browse |
|
⊘No context
⊘No context
⊘No context
⊘No created / dropped files found
File type: | |
Entropy (8bit): | 7.993570446272894 |
TrID: |
|
File name: | .i.elf |
File size: | 36'720 bytes |
MD5: | 4b3bd86fe87d83d973e66b4cde031058 |
SHA1: | 28c100f504c469f1b5118865e8d8e9c70a767664 |
SHA256: | 4dba95235a05789b47de3df4859c663cd58e48a03381d18a50c81a56107f5a65 |
SHA512: | 3e49104f6982b8c61abc5550a93365d901a5449fdcfe45a0974cc50f82c3d96e95361c4182b1a147f8702ca47145b1ea5d97f06f8d97c904e1509cfc5c008e27 |
SSDEEP: | 768:/kAKuobq1rduMGAXSEYEYv6DjbChaAUKvNvy0OQTN:87vbq1lGAXSEYQjbChaAU2yUN |
TLSH: | F0F2F1D11361178CC766DB783DBD7019C838111B32E90E402DD3A68AEA0F724A87AEFD |
File Content Preview: | .ELF..............(......'..4...........4. ...(......................7...7.............................................c........................i..........?.E.h;....#..$..O.%.......y.A.U"......-R..e....<l>=).!...O........u.....`o..*ziy"......R..~@....x2'_ |
ELF header | |
---|---|
Class: | |
Data: | |
Version: | |
Machine: | |
Version Number: | |
Type: | |
OS/ABI: | |
ABI Version: | 0 |
Entry Point Address: | |
Flags: | |
ELF Header Size: | 52 |
Program Header Offset: | 52 |
Program Header Size: | 32 |
Number of Program Headers: | 2 |
Section Header Offset: | 0 |
Section Header Size: | 40 |
Number of Section Headers: | 0 |
Header String Table Index: | 0 |
Type | Offset | Virtual Address | Physical Address | File Size | Memory Size | Entropy | Flags | Flags Description | Align | Prog Interpreter | Section Mappings |
---|---|---|---|---|---|---|---|---|---|---|---|
LOAD | 0x0 | 0x10000 | 0x10000 | 0x137e9 | 0x137e9 | 7.9936 | 0x5 | R E | 0x10000 | ||
LOAD | 0x6fc | 0x506fc | 0x506fc | 0x0 | 0x0 | 0.0000 | 0x6 | RW | 0x10000 |
Download Network PCAP: filtered – full
Timestamp | Source Port | Dest Port | Source IP | Dest IP |
---|---|---|---|---|
Mar 25, 2025 14:12:20.872162104 CET | 39092 | 53 | 192.168.2.13 | 1.1.1.1 |
Mar 25, 2025 14:12:20.872220993 CET | 54267 | 53 | 192.168.2.13 | 1.1.1.1 |
Mar 25, 2025 14:12:20.980195999 CET | 53 | 39092 | 1.1.1.1 | 192.168.2.13 |
Mar 25, 2025 14:12:20.995635033 CET | 53 | 54267 | 1.1.1.1 | 192.168.2.13 |
Timestamp | Source IP | Dest IP | Trans ID | OP Code | Name | Type | Class | DNS over HTTPS |
---|---|---|---|---|---|---|---|---|
Mar 25, 2025 14:12:20.872162104 CET | 192.168.2.13 | 1.1.1.1 | 0x4fea | Standard query (0) | A (IP address) | IN (0x0001) | false | |
Mar 25, 2025 14:12:20.872220993 CET | 192.168.2.13 | 1.1.1.1 | 0x2f82 | Standard query (0) | 28 | IN (0x0001) | false |
Timestamp | Source IP | Dest IP | Trans ID | Reply Code | Name | CName | Address | Type | Class | DNS over HTTPS |
---|---|---|---|---|---|---|---|---|---|---|
Mar 25, 2025 14:12:20.980195999 CET | 1.1.1.1 | 192.168.2.13 | 0x4fea | No error (0) | 162.213.35.25 | A (IP address) | IN (0x0001) | false | ||
Mar 25, 2025 14:12:20.980195999 CET | 1.1.1.1 | 192.168.2.13 | 0x4fea | No error (0) | 162.213.35.24 | A (IP address) | IN (0x0001) | false |
System Behavior
Start time (UTC): | 13:12:19 |
Start date (UTC): | 25/03/2025 |
Path: | /tmp/.i.elf |
Arguments: | /tmp/.i.elf |
File size: | 4956856 bytes |
MD5 hash: | 5ebfcae4fe2471fcc5695c2394773ff1 |