Linux Analysis Report
c0r0n4x.mips.elf

Overview

General Information

Sample name: c0r0n4x.mips.elf
Analysis ID: 1542842
MD5: 8dd87e19fa7969e340a20953e7a162cf
SHA1: 6a8ca427d2ac12ef3ca0ebc7204526f7346e512f
SHA256: abca56f7788a39f87b8cc274475239704ce68ebc2c5bd8f95551213ba011e3cf
Tags: elfuser-abuse_ch
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
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
Source: c0r0n4x.mips.elf ReversingLabs: Detection: 52%
Source: global traffic TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global traffic TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global traffic TCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: c0r0n4x.mips.elf String found in binary or memory: http://upx.sf.net
Source: unknown Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 42836 -> 443
Source: LOAD without section mappings Program segment: 0x400000
Source: classification engine Classification label: mal52.evad.linELF@0/0@0/0

Data Obfuscation

barindex
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. $
Source: c0r0n4x.mips.elf Submission file: segment LOAD with 7.8683 entropy (max. 8.0)
Source: /tmp/c0r0n4x.mips.elf (PID: 6220) Queries kernel information via 'uname': Jump to behavior
Source: c0r0n4x.mips.elf, 6220.1.0000557d1f553000.0000557d1f5da000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/mips
Source: c0r0n4x.mips.elf, 6220.1.00007ffe3272c000.00007ffe3274d000.rw-.sdmp Binary or memory string: /usr/bin/qemu-mips
Source: c0r0n4x.mips.elf, 6220.1.00007ffe3272c000.00007ffe3274d000.rw-.sdmp Binary or memory string: 3x86_64/usr/bin/qemu-mips/tmp/c0r0n4x.mips.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/c0r0n4x.mips.elf
Source: c0r0n4x.mips.elf, 6220.1.0000557d1f553000.0000557d1f5da000.rw-.sdmp Binary or memory string: }U!/etc/qemu-binfmt/mips
Source: c0r0n4x.mips.elf, 6220.1.00007ffe3272c000.00007ffe3274d000.rw-.sdmp Binary or memory string: qemu: uncaught target signal 5 (Trace/breakpoint trap) - core dumped
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs