Linux
Analysis Report
linux.elf
Overview
General Information
Sample name: | linux.elf |
Analysis ID: | 1670056 |
MD5: | 5410bf4b98e314450babd595e5c2c8f9 |
SHA1: | 025e2b629be0cda2a421e4f2efc11e3014f48371 |
SHA256: | b8d413b3394802500e627a8e76aac50484183e847c514bbff792a6371bf0c36a |
Tags: | elfuser-abuse_ch |
Infos: |
Detection
Score: | 1 |
Range: | 0 - 100 |
Signatures
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
Classification
Joe Sandbox version: | 42.0.0 Malachite |
Analysis ID: | 1670056 |
Start date and time: | 2025-04-21 04:19:13 +02:00 |
Joe Sandbox product: | CloudBasic |
Overall analysis duration: | 0h 4m 37s |
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: | linux.elf |
Detection: | CLEAN |
Classification: | clean1.linELF@0/0@0/0 |
Command: | /tmp/linux.elf |
PID: | 6258 |
Exit Code: | 135 |
Exit Code Info: | |
Killed: | False |
Standard Output: | |
Standard Error: |
- system is lnxubuntu20
- dash New Fork (PID: 6227, Parent: 4331)
- dash New Fork (PID: 6228, Parent: 4331)
- dash New Fork (PID: 6229, Parent: 4331)
- dash New Fork (PID: 6230, Parent: 4331)
- dash New Fork (PID: 6231, Parent: 4331)
- dash New Fork (PID: 6232, Parent: 4331)
- dash New Fork (PID: 6233, Parent: 4331)
- dash New Fork (PID: 6234, Parent: 4331)
- dash New Fork (PID: 6235, Parent: 4331)
- dash New Fork (PID: 6236, Parent: 4331)
- cleanup
⊘No yara matches
⊘No Suricata rule has matched
- • Networking
- • System Summary
- • Persistence and Installation Behavior
- • Hooking and other Techniques for Hiding and Protection
Click to jump to signature section
Show All Signature Results
There are no malicious signatures, click here to show all signatures.
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: | ||
Source: | TCP traffic detected without corresponding DNS query: |
Source: | Network traffic detected: | ||
Source: | Network traffic detected: | ||
Source: | Network traffic detected: | ||
Source: | Network traffic detected: |
Source: | Program segment: |
Source: | Classification label: |
Source: | Rm executable: | Jump to behavior | ||
Source: | Rm executable: | Jump to behavior |
Source: | Submission file: | ||
Source: | Submission file: |
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 | System Service Discovery | Remote Services | Data from Local System | 1 Encrypted Channel | 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
⊘No Antivirus matches
⊘No Antivirus matches
⊘No Antivirus matches
⊘No Antivirus matches
⊘No contacted domains info
- No. of IPs < 25%
- 25% < No. of IPs < 50%
- 50% < No. of IPs < 75%
- 75% < No. of IPs
IP | Domain | Country | Flag | ASN | ASN Name | Malicious |
---|---|---|---|---|---|---|
54.171.230.55 | unknown | United States | 16509 | AMAZON-02US | false | |
109.202.202.202 | unknown | Switzerland | 13030 | INIT7CH | false | |
91.189.91.43 | unknown | United Kingdom | 41231 | CANONICAL-ASGB | false | |
91.189.91.42 | unknown | United Kingdom | 41231 | CANONICAL-ASGB | false |
Match | Associated Sample Name / URL | SHA 256 | Detection | Threat Name | Link | Context |
---|---|---|---|---|---|---|
54.171.230.55 | Get hash | malicious | Prometei | Browse | ||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Mirai | Browse | |||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Gafgyt, Mirai, Okiru | Browse | |||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Mirai | Browse | |||
Get hash | malicious | Mirai | Browse | |||
Get hash | malicious | Mirai | Browse | |||
109.202.202.202 | Get hash | malicious | Unknown | Browse |
| |
91.189.91.43 | Get hash | malicious | Prometei | Browse | ||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Prometei | Browse | |||
91.189.91.42 | Get hash | malicious | Prometei | Browse | ||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Prometei | Browse | |||
Get hash | malicious | Prometei | Browse |
⊘No context
Match | Associated Sample Name / URL | SHA 256 | Detection | Threat Name | Link | Context |
---|---|---|---|---|---|---|
CANONICAL-ASGB | Get hash | malicious | Prometei | Browse |
| |
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
CANONICAL-ASGB | Get hash | malicious | Prometei | Browse |
| |
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
AMAZON-02US | Get hash | malicious | Prometei | Browse |
| |
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
INIT7CH | Get hash | malicious | Prometei | Browse |
| |
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
| ||
Get hash | malicious | Prometei | Browse |
|
⊘No context
⊘No context
⊘No created / dropped files found
File type: | |
Entropy (8bit): | 7.9421421794925 |
TrID: |
|
File name: | linux.elf |
File size: | 1'253'968 bytes |
MD5: | 5410bf4b98e314450babd595e5c2c8f9 |
SHA1: | 025e2b629be0cda2a421e4f2efc11e3014f48371 |
SHA256: | b8d413b3394802500e627a8e76aac50484183e847c514bbff792a6371bf0c36a |
SHA512: | 0970a9423c5df21cde6f2641a9df7bf3cdc8a995aac7ff905e53797144233141cc3244fbbb75432f83f153d6b11f3e57866c6a1cc76638cc860aac83e2d4de9b |
SSDEEP: | 24576:g0LXDY6hVwCBPq34s+hAjiy+tLTli+7E3R6w8lBSQ9UFzlsGXTTkoTP0l:gSTThuIhuiywLRV7G6w8HMl7X0oTP0l |
TLSH: | 414533A05F81504939D6EEB3733A939F22ECF91AF2BD7DA3893529BD205CC42295701C |
File Content Preview: | .ELF..............>.....x.......@...................@.8...........................@.......@...............|.............................................>V$.....>V$.............Q.td....................................................#...UPX!..........W..4T |
ELF header | |
---|---|
Class: | |
Data: | |
Version: | |
Machine: | |
Version Number: | |
Type: | |
OS/ABI: | |
ABI Version: | 0 |
Entry Point Address: | |
Flags: | |
ELF Header Size: | 64 |
Program Header Offset: | 64 |
Program Header Size: | 56 |
Number of Program Headers: | 3 |
Section Header Offset: | 0 |
Section Header Size: | 0 |
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 | 0x400000 | 0x400000 | 0x1000 | 0x7c87b0 | 7.6270 | 0x6 | RW | 0x1000 | ||
LOAD | 0x0 | 0xbc9000 | 0xbc9000 | 0x24563e | 0x24563e | 7.9421 | 0x5 | R E | 0x1000 | ||
GNU_STACK | 0x0 | 0x0 | 0x0 | 0x0 | 0x0 | 0.0000 | 0x6 | RW | 0x10 |
Download Network PCAP: filtered – full
- Total Packets: 12
Timestamp | Source Port | Dest Port | Source IP | Dest IP |
---|---|---|---|---|
Apr 21, 2025 04:19:58.132249117 CEST | 443 | 33606 | 54.171.230.55 | 192.168.2.23 |
Apr 21, 2025 04:19:58.132349968 CEST | 33606 | 443 | 192.168.2.23 | 54.171.230.55 |
Apr 21, 2025 04:19:58.133316994 CEST | 33606 | 443 | 192.168.2.23 | 54.171.230.55 |
Apr 21, 2025 04:19:58.452491045 CEST | 443 | 33606 | 54.171.230.55 | 192.168.2.23 |
Apr 21, 2025 04:19:58.452510118 CEST | 443 | 33606 | 54.171.230.55 | 192.168.2.23 |
Apr 21, 2025 04:19:58.452603102 CEST | 33606 | 443 | 192.168.2.23 | 54.171.230.55 |
Apr 21, 2025 04:19:58.452603102 CEST | 33606 | 443 | 192.168.2.23 | 54.171.230.55 |
Apr 21, 2025 04:20:01.310861111 CEST | 43928 | 443 | 192.168.2.23 | 91.189.91.42 |
Apr 21, 2025 04:20:06.686120033 CEST | 42836 | 443 | 192.168.2.23 | 91.189.91.43 |
Apr 21, 2025 04:20:07.965928078 CEST | 42516 | 80 | 192.168.2.23 | 109.202.202.202 |
Apr 21, 2025 04:20:22.299997091 CEST | 43928 | 443 | 192.168.2.23 | 91.189.91.42 |
Apr 21, 2025 04:20:32.538580894 CEST | 42836 | 443 | 192.168.2.23 | 91.189.91.43 |
Apr 21, 2025 04:20:38.681687117 CEST | 42516 | 80 | 192.168.2.23 | 109.202.202.202 |
Apr 21, 2025 04:21:03.254533052 CEST | 43928 | 443 | 192.168.2.23 | 91.189.91.42 |
Apr 21, 2025 04:21:23.731563091 CEST | 42836 | 443 | 192.168.2.23 | 91.189.91.43 |
System Behavior
Start time (UTC): | 02:19:56 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 02:19:56 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/rm |
Arguments: | rm -f /tmp/tmp.Pk13JF61Yq /tmp/tmp.1X3iNxKtqs /tmp/tmp.c97Cmc6J3V |
File size: | 72056 bytes |
MD5 hash: | aa2b5496fdbfd88e38791ab81f90b95b |
Start time (UTC): | 02:19:56 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 02:19:56 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/cat |
Arguments: | cat /tmp/tmp.Pk13JF61Yq |
File size: | 43416 bytes |
MD5 hash: | 7e9d213e404ad3bb82e4ebb2e1f2c1b3 |
Start time (UTC): | 02:19:56 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 02:19:56 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/head |
Arguments: | head -n 10 |
File size: | 47480 bytes |
MD5 hash: | fd96a67145172477dd57131396fc9608 |
Start time (UTC): | 02:19:56 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 02:19:56 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/tr |
Arguments: | tr -d \\000-\\011\\013\\014\\016-\\037 |
File size: | 51544 bytes |
MD5 hash: | fbd1402dd9f72d8ebfff00ce7c3a7bb5 |
Start time (UTC): | 02:19:56 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 02:19:56 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/cut |
Arguments: | cut -c -80 |
File size: | 47480 bytes |
MD5 hash: | d8ed0ea8f22c0de0f8692d4d9f1759d3 |
Start time (UTC): | 02:19:57 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 02:19:57 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/cat |
Arguments: | cat /tmp/tmp.Pk13JF61Yq |
File size: | 43416 bytes |
MD5 hash: | 7e9d213e404ad3bb82e4ebb2e1f2c1b3 |
Start time (UTC): | 02:19:57 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 02:19:57 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/head |
Arguments: | head -n 10 |
File size: | 47480 bytes |
MD5 hash: | fd96a67145172477dd57131396fc9608 |
Start time (UTC): | 02:19:57 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 02:19:57 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/tr |
Arguments: | tr -d \\000-\\011\\013\\014\\016-\\037 |
File size: | 51544 bytes |
MD5 hash: | fbd1402dd9f72d8ebfff00ce7c3a7bb5 |
Start time (UTC): | 02:19:57 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 02:19:57 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/cut |
Arguments: | cut -c -80 |
File size: | 47480 bytes |
MD5 hash: | d8ed0ea8f22c0de0f8692d4d9f1759d3 |
Start time (UTC): | 02:19:57 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 02:19:57 |
Start date (UTC): | 21/04/2025 |
Path: | /usr/bin/rm |
Arguments: | rm -f /tmp/tmp.Pk13JF61Yq /tmp/tmp.1X3iNxKtqs /tmp/tmp.c97Cmc6J3V |
File size: | 72056 bytes |
MD5 hash: | aa2b5496fdbfd88e38791ab81f90b95b |
Start time (UTC): | 02:19:58 |
Start date (UTC): | 21/04/2025 |
Path: | /tmp/linux.elf |
Arguments: | /tmp/linux.elf |
File size: | 1253968 bytes |
MD5 hash: | 5410bf4b98e314450babd595e5c2c8f9 |