Linux Analysis Report
na.elf

Overview

General Information

Sample name: na.elf
Analysis ID: 1528829
MD5: 336557d90ec34c6a775b5d8a5052b642
SHA1: 80a00b0f4b7464a95e62b8f03823e9fece4853e2
SHA256: 936118c5e176f3aa3164d1ab0602c3e545dfee83974a97bd4604e7f7f855b9d2
Tags: elfMiraiuser-abuse_ch

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
Sample contains only a LOAD segment without any section mappings
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

AV Detection
barindex
Multi AV Scanner detection for submitted file
Source: na.elf Virustotal: Detection: 29% Perma Link
Source: na.elf ReversingLabs: Detection: 39%
Source: na.elf String found in binary or memory: http://upx.sf.net
Sample contains only a LOAD segment without any section mappings
Source: LOAD without section mappings Program segment: 0x100000
Source: classification engine Classification label: mal52.evad.linELF@0/0@0/0

Data Obfuscation
barindex
Sample is packed with UPX
Source: initial sample String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample String containing UPX found: $Id: UPX 3.94 Copyright (C) 1996-2017 the UPX Team. All Rights Reserved. $
ELF contains segments with high entropy indicating compressed/encrypted content
Source: na.elf Submission file: segment LOAD with 7.9346 entropy (max. 8.0)
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/na.elf (PID: 5527) Queries kernel information via 'uname': Jump to behavior
Source: na.elf, 5527.1.000055d51d0ef000.000055d51d176000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/mips
Source: na.elf, 5527.1.000055d51d0ef000.000055d51d176000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/mips
Source: na.elf, 5527.1.00007ffe844d7000.00007ffe844f8000.rw-.sdmp Binary or memory string: /x86_64/usr/bin/qemu-mips/tmp/na.elfSUDO_USER=saturninoPATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/binDISPLAY=:1.0XAUTHORITY=/run/user/1000/gdm/XauthoritySUDO_UID=1000TERM=xterm-256colorCOLORTERM=truecolorLOGNAME=rootUSER=rootLANG=en_US.UTF-8SUDO_COMMAND=/bin/bashHOME=/rootMAIL=/var/mail/rootSUDO_GID=1000SHELL=/bin/bash/tmp/na.elf
Source: na.elf, 5527.1.00007ffe844d7000.00007ffe844f8000.rw-.sdmp Binary or memory string: /usr/bin/qemu-mips

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