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Linux
Analysis Report
dPOYR1HYAD.elf
Overview
General Information
Sample name: | dPOYR1HYAD.elfrenamed because original name is a hash value |
Original sample name: | 41d3ee7390ce39e60f95c0144128fc45.elf |
Analysis ID: | 1432064 |
MD5: | 41d3ee7390ce39e60f95c0144128fc45 |
SHA1: | 3c5e22a7c783a22f3de39b448911ab294847532b |
SHA256: | 2fa1aa901170e3b67af6006da325523b38bd610ac387cfeeac3dc55ea9e9aa55 |
Tags: | 32elfmipsmirai |
Infos: | |
Detection
Okiru
Score: | 60 |
Range: | 0 - 100 |
Whitelisted: | false |
Signatures
Multi AV Scanner detection for submitted file
Yara detected Okiru
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
Reads CPU information from /proc indicative of miner or evasive malware
Reads system information from the proc file system
Sample contains only a LOAD segment without any section mappings
Sample tries to kill a process (SIGKILL)
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. |
Static ELF header machine description suggests that the sample might only run correctly on MIPS or ARM architectures. |
Joe Sandbox version: | 40.0.0 Tourmaline |
Analysis ID: | 1432064 |
Start date and time: | 2024-04-26 11:16:56 +02:00 |
Joe Sandbox product: | CloudBasic |
Overall analysis duration: | 0h 4m 57s |
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: | dPOYR1HYAD.elfrenamed because original name is a hash value |
Original Sample Name: | 41d3ee7390ce39e60f95c0144128fc45.elf |
Detection: | MAL |
Classification: | mal60.troj.evad.linELF@0/0@0/0 |
- Skipping network analysis since amount of network traffic is too extensive
Command: | /tmp/dPOYR1HYAD.elf |
PID: | 6205 |
Exit Code: | 0 |
Exit Code Info: | |
Killed: | False |
Standard Output: | |
Standard Error: |
- system is lnxubuntu20
- dPOYR1HYAD.elf New Fork (PID: 6207, Parent: 6205)
- dPOYR1HYAD.elf New Fork (PID: 6209, Parent: 6205)
- dPOYR1HYAD.elf New Fork (PID: 6211, Parent: 6209)
- dPOYR1HYAD.elf New Fork (PID: 6294, Parent: 6211)
- dash New Fork (PID: 6247, Parent: 4331)
- dash New Fork (PID: 6248, Parent: 4331)
- dash New Fork (PID: 6249, Parent: 4331)
- dash New Fork (PID: 6250, Parent: 4331)
- dash New Fork (PID: 6251, Parent: 4331)
- dash New Fork (PID: 6252, Parent: 4331)
- dash New Fork (PID: 6253, Parent: 4331)
- dash New Fork (PID: 6254, Parent: 4331)
- dash New Fork (PID: 6255, Parent: 4331)
- dash New Fork (PID: 6256, Parent: 4331)
- cleanup
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Okiru | Yara detected Okiru | Joe Security | ||
JoeSecurity_Okiru | Yara detected Okiru | Joe Security | ||
JoeSecurity_Okiru | Yara detected Okiru | Joe Security | ||
JoeSecurity_Okiru | Yara detected Okiru | Joe Security | ||
JoeSecurity_Okiru | Yara detected Okiru | Joe Security | ||
Click to see the 3 entries |
⊘No Snort rule has matched
Click to jump to signature section
Show All Signature Results
AV Detection |
---|
Source: | ReversingLabs: | |||
Source: | Virustotal: | Perma Link |
Source: | Reads CPU info from proc file: | Jump to behavior |
Source: | String found in binary or memory: |
Source: | Program segment: |
Source: | SIGKILL sent: | Jump to behavior | ||
Source: | SIGKILL sent: | Jump to behavior |
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: | Reads from proc file: | Jump to behavior | ||
Source: | Reads from proc file: | Jump to behavior |
Source: | Submission file: | ||
Source: | Submission file: |
Source: | Reads CPU info from proc file: | Jump to behavior |
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: |
Stealing of Sensitive Information |
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Source: | File source: | ||
Source: | File source: | ||
Source: | File source: | ||
Source: | File source: | ||
Source: | File source: | ||
Source: | File source: | ||
Source: | File source: | ||
Source: | File source: |
Remote Access Functionality |
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Source: | File source: | ||
Source: | File source: | ||
Source: | File source: | ||
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Source: | File source: |
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 | Data Obfuscation | 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 | 2 System Information Discovery | Remote Desktop Protocol | Data from Removable Media | Junk Data | Exfiltration Over Bluetooth | Network Denial of Service |
⊘No configs have been found
This section contains all screenshots as thumbnails, including those not shown in the slideshow.
Source | Detection | Scanner | Label | Link |
---|---|---|---|---|
16% | ReversingLabs | |||
14% | Virustotal | Browse |
⊘No Antivirus matches
⊘No Antivirus matches
⊘No Antivirus matches
⊘No contacted domains info
Name | Source | Malicious | Antivirus Detection | Reputation |
---|---|---|---|---|
false | high |
⊘No contacted IP infos
⊘No created / dropped files found
File type: | |
Entropy (8bit): | 7.6853364246940234 |
TrID: |
|
File name: | dPOYR1HYAD.elf |
File size: | 52'932 bytes |
MD5: | 41d3ee7390ce39e60f95c0144128fc45 |
SHA1: | 3c5e22a7c783a22f3de39b448911ab294847532b |
SHA256: | 2fa1aa901170e3b67af6006da325523b38bd610ac387cfeeac3dc55ea9e9aa55 |
SHA512: | dde7e3e419a6b434c9dda7f84c6076112ba1daae0940a6f759a52bda2a93e6a9924751eb334b1b1074bc84cccd2d29554a3a1a1338c6123ad7c0e5ff5ddcda30 |
SSDEEP: | 1536:HbTmBAy9bBzZOhgjR8MpZdfy2EVrOJ1BBUu5IL9vo:HbynRBFOh/gKrOJ135I5Q |
TLSH: | 873301579CACA7B4D71093F3F547243E7F511A5B50C453F702A6A6671BA38C052980EB |
File Content Preview: | .ELF......................D.4...........4. ...................@...@......l....................D...D.................Q.td.............................5.. ...........h...@Y......n........?d..ELF.........@.....4........ ...(........&p...@....].d.M@.@Y..cc#.. |
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: | 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 | 0x36c04 | 7.5156 | 0x6 | RW | 0x10000 | ||
LOAD | 0x0 | 0x440000 | 0x440000 | 0xc681 | 0xc681 | 7.6806 | 0x5 | R E | 0x10000 | ||
GNU_STACK | 0x0 | 0x0 | 0x0 | 0x0 | 0x0 | 0.0000 | 0x7 | RWE | 0x4 |
⊘Skipped network analysis since the amount of network traffic is too extensive. Please download the PCAP and check manually.
System Behavior
Start time (UTC): | 09:17:35 |
Start date (UTC): | 26/04/2024 |
Path: | /tmp/dPOYR1HYAD.elf |
Arguments: | /tmp/dPOYR1HYAD.elf |
File size: | 5773336 bytes |
MD5 hash: | 0d6f61f82cf2f781c6eb0661071d42d9 |
Start time (UTC): | 09:17:36 |
Start date (UTC): | 26/04/2024 |
Path: | /tmp/dPOYR1HYAD.elf |
Arguments: | - |
File size: | 5773336 bytes |
MD5 hash: | 0d6f61f82cf2f781c6eb0661071d42d9 |
Start time (UTC): | 09:17:36 |
Start date (UTC): | 26/04/2024 |
Path: | /tmp/dPOYR1HYAD.elf |
Arguments: | - |
File size: | 5773336 bytes |
MD5 hash: | 0d6f61f82cf2f781c6eb0661071d42d9 |
Start time (UTC): | 09:17:36 |
Start date (UTC): | 26/04/2024 |
Path: | /tmp/dPOYR1HYAD.elf |
Arguments: | - |
File size: | 5773336 bytes |
MD5 hash: | 0d6f61f82cf2f781c6eb0661071d42d9 |
Start time (UTC): | 09:18:43 |
Start date (UTC): | 26/04/2024 |
Path: | /tmp/dPOYR1HYAD.elf |
Arguments: | - |
File size: | 5773336 bytes |
MD5 hash: | 0d6f61f82cf2f781c6eb0661071d42d9 |
Start time (UTC): | 09:18:04 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 09:18:04 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/rm |
Arguments: | rm -f /tmp/tmp.RsMkx57hJx /tmp/tmp.br4Wgx1gNE /tmp/tmp.pUQWfyOGYi |
File size: | 72056 bytes |
MD5 hash: | aa2b5496fdbfd88e38791ab81f90b95b |
Start time (UTC): | 09:18:04 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 09:18:04 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/cat |
Arguments: | cat /tmp/tmp.RsMkx57hJx |
File size: | 43416 bytes |
MD5 hash: | 7e9d213e404ad3bb82e4ebb2e1f2c1b3 |
Start time (UTC): | 09:18:04 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 09:18:04 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/head |
Arguments: | head -n 10 |
File size: | 47480 bytes |
MD5 hash: | fd96a67145172477dd57131396fc9608 |
Start time (UTC): | 09:18:04 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 09:18:04 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/tr |
Arguments: | tr -d \\000-\\011\\013\\014\\016-\\037 |
File size: | 51544 bytes |
MD5 hash: | fbd1402dd9f72d8ebfff00ce7c3a7bb5 |
Start time (UTC): | 09:18:04 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 09:18:04 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/cut |
Arguments: | cut -c -80 |
File size: | 47480 bytes |
MD5 hash: | d8ed0ea8f22c0de0f8692d4d9f1759d3 |
Start time (UTC): | 09:18:04 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 09:18:04 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/cat |
Arguments: | cat /tmp/tmp.RsMkx57hJx |
File size: | 43416 bytes |
MD5 hash: | 7e9d213e404ad3bb82e4ebb2e1f2c1b3 |
Start time (UTC): | 09:18:04 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 09:18:04 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/head |
Arguments: | head -n 10 |
File size: | 47480 bytes |
MD5 hash: | fd96a67145172477dd57131396fc9608 |
Start time (UTC): | 09:18:04 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 09:18:04 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/tr |
Arguments: | tr -d \\000-\\011\\013\\014\\016-\\037 |
File size: | 51544 bytes |
MD5 hash: | fbd1402dd9f72d8ebfff00ce7c3a7bb5 |
Start time (UTC): | 09:18:04 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 09:18:04 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/cut |
Arguments: | cut -c -80 |
File size: | 47480 bytes |
MD5 hash: | d8ed0ea8f22c0de0f8692d4d9f1759d3 |
Start time (UTC): | 09:18:05 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/dash |
Arguments: | - |
File size: | 129816 bytes |
MD5 hash: | 1e6b1c887c59a315edb7eb9a315fc84c |
Start time (UTC): | 09:18:05 |
Start date (UTC): | 26/04/2024 |
Path: | /usr/bin/rm |
Arguments: | rm -f /tmp/tmp.RsMkx57hJx /tmp/tmp.br4Wgx1gNE /tmp/tmp.pUQWfyOGYi |
File size: | 72056 bytes |
MD5 hash: | aa2b5496fdbfd88e38791ab81f90b95b |