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Linux
Analysis Report
na.elf
Overview
General Information
| Sample name: | na.elf |
| Analysis ID: | 1527088 |
| MD5: | 137de3e8da2c676dfa376710d85673e2 |
| SHA1: | 3f1b5f0aaf135e63605d6635feb2d202bb8a57a8 |
| SHA256: | 687e099d9dd3f9bbf9d17bea0039c070783655bdb13782c9d9deb1f87febc88b |
| Tags: | elfuser-abuse_ch |
 | |
Detection
| Score: | 48 |
| Range: | 0 - 100 |
| Whitelisted: | false |
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
| Joe Sandbox version: | 41.0.0 Charoite |
| Analysis ID: | 1527088 |
| Start date and time: | 2024-10-06 20:59:30 +02:00 |
| Joe Sandbox product: | CloudBasic |
| Overall analysis duration: | 0h 4m 14s |
| 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: | mal48.linELF@0/0@0/0 |
- VT rate limit hit for: na.elf
| Command: | /tmp/na.elf |
| PID: | 5511 |
| Exit Code: | 1 |
| Exit Code Info: | |
| Killed: | False |
| Standard Output: | |
| Standard Error: |
- system is lnxubuntu20
- cleanup
⊘No yara matches
⊘No Suricata rule has matched
Click to jump to signature section
Show All Signature Results
AV Detection |   |
|---|
| Source: | ReversingLabs: | ||
| Source: | .symtab present: | ||
| Source: | Classification label: | ||
| 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: | ||
| 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 | Direct Volume Access | OS Credential Dumping | 11 Security Software Discovery | Remote Services | Data from Local System | Data Obfuscation | Exfiltration Over Other Network Medium | Abuse Accessibility Features |
⊘No configs have been found
Is Dropped
Number of created Files
Is malicious
InternetThis section contains all screenshots as thumbnails, including those not shown in the slideshow.
| Source | Detection | Scanner | Label | Link |
|---|---|---|---|---|
| 50% | ReversingLabs | Linux.Trojan.Mirai |
⊘No Antivirus matches
⊘No Antivirus matches
⊘No Antivirus matches
⊘No created / dropped files found
| File type: | |
| Entropy (8bit): | 6.050536761899086 |
| TrID: |
|
| File name: | na.elf |
| File size: | 75'280 bytes |
| MD5: | 137de3e8da2c676dfa376710d85673e2 |
| SHA1: | 3f1b5f0aaf135e63605d6635feb2d202bb8a57a8 |
| SHA256: | 687e099d9dd3f9bbf9d17bea0039c070783655bdb13782c9d9deb1f87febc88b |
| SHA512: | df63ba71d292bca5ed769409c9f652b31364b17a98fa690c7a97e4407c456b95da3667ba42c3bd0b0284804b03fddf2b6e177773d1ac5c358890185858955899 |
| SSDEEP: | 768:TslJRpQITMd56nT7vZXY9QYc0jz5ZS+O+lM5VVji1h91t39tIdP:TSJRpQIId56fvZo9Q/0jFZ9lM5Ktv6 |
| TLSH: | 9B735C22BA761E17C4C1697A61F74764F2F5578A25ACCA0E7D720E8EFF3064032936B4 |
| File Content Preview: | .ELF...........................4..$......4. ...(.......................................... ... ... ....@..&X........dt.Q................................@..(....@.@=................#.....`@..`.....!..... ...@.....".........`......$ ... ...@...........`.... |
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: | 74880 |
| Section Header Size: | 40 |
| Number of Section Headers: | 10 |
| Header String Table Index: | 9 |
| Name | Type | Address | Offset | Size | EntSize | Flags | Flags Description | Link | Info | Align |
|---|---|---|---|---|---|---|---|---|---|---|
| NULL | 0x0 | 0x0 | 0x0 | 0x0 | 0x0 | 0 | 0 | 0 | ||
| .init | PROGBITS | 0x10094 | 0x94 | 0x1c | 0x0 | 0x6 | AX | 0 | 0 | 4 |
| .text | PROGBITS | 0x100b0 | 0xb0 | 0x1012c | 0x0 | 0x6 | AX | 0 | 0 | 4 |
| .fini | PROGBITS | 0x201dc | 0x101dc | 0x14 | 0x0 | 0x6 | AX | 0 | 0 | 4 |
| .rodata | PROGBITS | 0x201f0 | 0x101f0 | 0x18c8 | 0x0 | 0x2 | A | 0 | 0 | 8 |
| .ctors | PROGBITS | 0x32000 | 0x12000 | 0x8 | 0x0 | 0x3 | WA | 0 | 0 | 4 |
| .dtors | PROGBITS | 0x32008 | 0x12008 | 0x8 | 0x0 | 0x3 | WA | 0 | 0 | 4 |
| .data | PROGBITS | 0x32018 | 0x12018 | 0x428 | 0x0 | 0x3 | WA | 0 | 0 | 8 |
| .bss | NOBITS | 0x32440 | 0x12440 | 0x2218 | 0x0 | 0x3 | WA | 0 | 0 | 8 |
| .shstrtab | STRTAB | 0x0 | 0x12440 | 0x3e | 0x0 | 0x0 | 0 | 0 | 1 |
| Type | Offset | Virtual Address | Physical Address | File Size | Memory Size | Entropy | Flags | Flags Description | Align | Prog Interpreter | Section Mappings |
|---|---|---|---|---|---|---|---|---|---|---|---|
| LOAD | 0x0 | 0x10000 | 0x10000 | 0x11ab8 | 0x11ab8 | 6.1460 | 0x5 | R E | 0x10000 | .init .text .fini .rodata | |
| LOAD | 0x12000 | 0x32000 | 0x32000 | 0x440 | 0x2658 | 3.3805 | 0x6 | RW | 0x10000 | .ctors .dtors .data .bss | |
| GNU_STACK | 0x0 | 0x0 | 0x0 | 0x0 | 0x0 | 0.0000 | 0x6 | RW | 0x4 |
⊘No network behavior found
System Behavior
| Start time (UTC): | 19:00:10 |
| Start date (UTC): | 06/10/2024 |
| Path: | /tmp/na.elf |
| Arguments: | /tmp/na.elf |
| File size: | 4379400 bytes |
| MD5 hash: | 7dc1c0e23cd5e102bb12e5c29403410e |