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Linux
Analysis Report
na.elf
Overview
General Information
Sample name: | na.elf |
Analysis ID: | 1533409 |
MD5: | 942a4c72715f07a61b8b964496eceed0 |
SHA1: | a854637de45fc554fb4a6a91041f22d21f7da229 |
SHA256: | 0312908f4074edd1b4078635da54c9a730f213c25b3b079d140f7a48e5c3448a |
Tags: | elfuser-abuse_ch |
Infos: |
Detection
Score: | 52 |
Range: | 0 - 100 |
Whitelisted: | false |
Signatures
Multi AV Scanner detection for submitted file
Sample is packed with UPX
ELF contains segments with high entropy indicating compressed/encrypted content
Executes the "rm" command used to delete files or directories
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: | 41.0.0 Charoite |
Analysis ID: | 1533409 |
Start date and time: | 2024-10-14 17:29:12 +02:00 |
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: | na.elf |
Detection: | MAL |
Classification: | mal52.evad.linELF@0/0@2/0 |
- VT rate limit hit for: na.elf
Command: | /tmp/na.elf |
PID: | 5437 |
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
- dash New Fork (PID: 5413, Parent: 3587)
- dash New Fork (PID: 5414, Parent: 3587)
- dash New Fork (PID: 5415, Parent: 3587)
- dash New Fork (PID: 5416, Parent: 3587)
- dash New Fork (PID: 5417, Parent: 3587)
- dash New Fork (PID: 5418, Parent: 3587)
- dash New Fork (PID: 5419, Parent: 3587)
- dash New Fork (PID: 5420, Parent: 3587)
- dash New Fork (PID: 5421, Parent: 3587)
- dash New Fork (PID: 5422, Parent: 3587)
- cleanup
⊘No yara matches
⊘No Suricata rule has matched
Click to jump to signature section
Show All Signature Results
AV Detection |
---|
Source: | ReversingLabs: |
Source: | DNS traffic detected: |
Source: | String found in binary or memory: |
Source: | Program segment: |
Source: | Classification label: |
Data Obfuscation |
---|
Source: | String containing UPX found: | ||
Source: | String containing UPX found: | ||
Source: | String containing UPX found: |
Source: | Rm executable: | Jump to behavior | ||
Source: | Rm executable: | Jump to behavior |
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 | 11 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 | 1 File Deletion | 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 |
---|---|---|---|---|
75% | ReversingLabs | Linux.Trojan.Mirai |
⊘No Antivirus matches
⊘No Antivirus matches
Source | Detection | Scanner | Label | Link |
---|---|---|---|---|
0% | URL Reputation | safe |
Name | IP | Active | Malicious | Antivirus Detection | Reputation |
---|---|---|---|---|---|
daisy.ubuntu.com | 162.213.35.24 | true | false | unknown |
Name | Source | Malicious | Antivirus Detection | Reputation |
---|---|---|---|---|
true |
| unknown |
⊘No contacted IP infos
⊘No context
Match | Associated Sample Name / URL | SHA 256 | Detection | Threat Name | Link | Context |
---|---|---|---|---|---|---|
daisy.ubuntu.com | Get hash | malicious | Mirai, Moobot | Browse |
| |
Get hash | malicious | Gafgyt, Mirai | Browse |
| ||
Get hash | malicious | Gafgyt, Mirai | Browse |
| ||
Get hash | malicious | Gafgyt, Mirai | Browse |
| ||
Get hash | malicious | Gafgyt, Mirai | Browse |
| ||
Get hash | malicious | Gafgyt, Mirai | Browse |
| ||
Get hash | malicious | Gafgyt, Mirai | Browse |
| ||
Get hash | malicious | Gafgyt, Mirai | Browse |
| ||
Get hash | malicious | Gafgyt, Mirai | Browse |
| ||
Get hash | malicious | Unknown | Browse |
|
⊘No context
⊘No context
⊘No context
⊘No created / dropped files found
File type: | |
Entropy (8bit): | 7.982959745814702 |
TrID: |
|
File name: | na.elf |
File size: | 59'796 bytes |
MD5: | 942a4c72715f07a61b8b964496eceed0 |
SHA1: | a854637de45fc554fb4a6a91041f22d21f7da229 |
SHA256: | 0312908f4074edd1b4078635da54c9a730f213c25b3b079d140f7a48e5c3448a |
SHA512: | 03bb381dbb3e38f46167083b062139eeb4c841531d625331458de75457b80ea9c998a18d2c08869ae88fbeafbd09a4947879bdf197beadc31df3e6fb3eb43f95 |
SSDEEP: | 1536:CsiKu8lNkFCpjmo777/BfX9IM3/AosCiTBX:Nu8l6F0Cozp+O49CgX |
TLSH: | 6843F2F0E18B25B2AA301C739D2710D39679F9F49DF5986A780549FB7B8B4822638C47 |
File Content Preview: | .ELF..............(.....d...4...........4. ...(.....................g...g...............................,U..........Q.td............................x.?.UPX!........bu..bu......m..........?.E.h;....#..$...o...G...1XfO....S..p.ouAT..lo../4..S ..J.....k...V. |
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: | 3 |
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 | 0x8000 | 0x8000 | 0xab67 | 0xab67 | 7.9739 | 0x5 | R E | 0x8000 | ||
LOAD | 0x0 | 0x18000 | 0x18000 | 0x0 | 0x1552c | 0.0000 | 0x6 | RW | 0x8000 | ||
GNU_STACK | 0x0 | 0x0 | 0x0 | 0x0 | 0x0 | 0.0000 | 0x7 | RWE | 0x4 |
Timestamp | Source Port | Dest Port | Source IP | Dest IP |
---|---|---|---|---|
Oct 14, 2024 17:30:02.248428106 CEST | 36124 | 53 | 192.168.2.13 | 8.8.8.8 |
Oct 14, 2024 17:30:02.248477936 CEST | 43307 | 53 | 192.168.2.13 | 8.8.8.8 |
Oct 14, 2024 17:30:03.041325092 CEST | 53 | 43307 | 8.8.8.8 | 192.168.2.13 |
Oct 14, 2024 17:30:03.042274952 CEST | 53 | 36124 | 8.8.8.8 | 192.168.2.13 |
Timestamp | Source IP | Dest IP | Trans ID | OP Code | Name | Type | Class | DNS over HTTPS |
---|---|---|---|---|---|---|---|---|
Oct 14, 2024 17:30:02.248428106 CEST | 192.168.2.13 | 8.8.8.8 | 0x27de | Standard query (0) | A (IP address) | IN (0x0001) | false | |
Oct 14, 2024 17:30:02.248477936 CEST | 192.168.2.13 | 8.8.8.8 | 0x19fc | Standard query (0) | 28 | IN (0x0001) | false |
Timestamp | Source IP | Dest IP | Trans ID | Reply Code | Name | CName | Address | Type | Class | DNS over HTTPS |
---|---|---|---|---|---|---|---|---|---|---|
Oct 14, 2024 17:30:03.042274952 CEST | 8.8.8.8 | 192.168.2.13 | 0x27de | No error (0) | 162.213.35.24 | A (IP address) | IN (0x0001) | false | ||
Oct 14, 2024 17:30:03.042274952 CEST | 8.8.8.8 | 192.168.2.13 | 0x27de | No error (0) | 162.213.35.25 | A (IP address) | IN (0x0001) | false |
System Behavior
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/rm |
Arguments: | rm -f /tmp/tmp.wLvzvVYRft /tmp/tmp.vP5TwQfjr0 /tmp/tmp.yrXQFuHbHk |
File size: | 72056 bytes |
MD5 hash: | aa2b5496fdbfd88e38791ab81f90b95b |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/cat |
Arguments: | cat /tmp/tmp.wLvzvVYRft |
File size: | 43416 bytes |
MD5 hash: | 7e9d213e404ad3bb82e4ebb2e1f2c1b3 |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/head |
Arguments: | head -n 10 |
File size: | 47480 bytes |
MD5 hash: | fd96a67145172477dd57131396fc9608 |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/tr |
Arguments: | tr -d \\000-\\011\\013\\014\\016-\\037 |
File size: | 51544 bytes |
MD5 hash: | fbd1402dd9f72d8ebfff00ce7c3a7bb5 |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/cut |
Arguments: | cut -c -80 |
File size: | 47480 bytes |
MD5 hash: | d8ed0ea8f22c0de0f8692d4d9f1759d3 |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/cat |
Arguments: | cat /tmp/tmp.wLvzvVYRft |
File size: | 43416 bytes |
MD5 hash: | 7e9d213e404ad3bb82e4ebb2e1f2c1b3 |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/head |
Arguments: | head -n 10 |
File size: | 47480 bytes |
MD5 hash: | fd96a67145172477dd57131396fc9608 |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/tr |
Arguments: | tr -d \\000-\\011\\013\\014\\016-\\037 |
File size: | 51544 bytes |
MD5 hash: | fbd1402dd9f72d8ebfff00ce7c3a7bb5 |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/cut |
Arguments: | cut -c -80 |
File size: | 47480 bytes |
MD5 hash: | d8ed0ea8f22c0de0f8692d4d9f1759d3 |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 15:29:49 |
Start date (UTC): | 14/10/2024 |
Path: | /usr/bin/rm |
Arguments: | rm -f /tmp/tmp.wLvzvVYRft /tmp/tmp.vP5TwQfjr0 /tmp/tmp.yrXQFuHbHk |
File size: | 72056 bytes |
MD5 hash: | aa2b5496fdbfd88e38791ab81f90b95b |
Start time (UTC): | 15:30:00 |
Start date (UTC): | 14/10/2024 |
Path: | /tmp/na.elf |
Arguments: | /tmp/na.elf |
File size: | 4956856 bytes |
MD5 hash: | 5ebfcae4fe2471fcc5695c2394773ff1 |