Linux Analysis Report
2Cn3vPj6IQ.elf

Overview

General Information

Sample name: 2Cn3vPj6IQ.elf
renamed because original name is a hash value
Original sample name: ce2d6079e351a8023560ca7fb48c66b4.elf
Analysis ID: 1468069
MD5: ce2d6079e351a8023560ca7fb48c66b4
SHA1: 02e9b60d8aa6dfa861f51d950fd9934a5b8f9f41
SHA256: 2755d1561997d82e12d05f368ebef24d30671aac0ba7c174703d2715056caa54
Tags: 32elfmipsmirai
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
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

AV Detection
barindex
Multi AV Scanner detection for submitted file
Source: 2Cn3vPj6IQ.elf ReversingLabs: Detection: 31%
Source: 2Cn3vPj6IQ.elf Virustotal: Detection: 30% Perma Link
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Source: global traffic TCP traffic: 192.168.2.14:46540 -> 185.125.190.26:443
Source: unknown TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: global traffic DNS traffic detected: DNS query: daisy.ubuntu.com
Source: 2Cn3vPj6IQ.elf String found in binary or memory: http://upx.sf.net
Source: unknown Network traffic detected: HTTP traffic on port 46540 -> 443
Sample contains only a LOAD segment without any section mappings
Source: LOAD without section mappings Program segment: 0x400000
Source: classification engine Classification label: mal52.evad.linELF@0/0@2/0

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 3.95 Copyright (C) 1996-2018 the UPX Team. All Rights Reserved. $
Executes the "rm" command used to delete files or directories
Source: /usr/bin/dash (PID: 5468) Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.aUv57CL66Y /tmp/tmp.UA3VF1uYDn /tmp/tmp.IR6MvBedQm Jump to behavior
Source: /usr/bin/dash (PID: 5469) Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.aUv57CL66Y /tmp/tmp.UA3VF1uYDn /tmp/tmp.IR6MvBedQm Jump to behavior
ELF contains segments with high entropy indicating compressed/encrypted content
Source: 2Cn3vPj6IQ.elf Submission file: segment LOAD with 7.7075 entropy (max. 8.0)
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/2Cn3vPj6IQ.elf (PID: 5479) Queries kernel information via 'uname': Jump to behavior
Source: 2Cn3vPj6IQ.elf, 5479.1.00007ffcfcb54000.00007ffcfcb75000.rw-.sdmp Binary or memory string: 6x86_64/usr/bin/qemu-mips/tmp/2Cn3vPj6IQ.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/2Cn3vPj6IQ.elf
Source: 2Cn3vPj6IQ.elf, 5479.1.00005630dd7af000.00005630dd836000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/mips
Source: 2Cn3vPj6IQ.elf, 5479.1.00007ffcfcb54000.00007ffcfcb75000.rw-.sdmp Binary or memory string: /usr/bin/qemu-mips
Source: 2Cn3vPj6IQ.elf, 5479.1.00005630dd7af000.00005630dd836000.rw-.sdmp Binary or memory string: 0V!/etc/qemu-binfmt/mips
Source: 2Cn3vPj6IQ.elf, 5479.1.00007ffcfcb54000.00007ffcfcb75000.rw-.sdmp Binary or memory string: qemu: uncaught target signal 5 (Trace/breakpoint trap) - core dumped
windows-stand
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
185.125.190.26
 unknown United Kingdom
41231 CANONICAL-ASGB false

Contacted Domains

Name IP Active
daisy.ubuntu.com 162.213.35.24 true