Linux Analysis Report ND41FX6xbB

Overview

General Information

Sample Name: ND41FX6xbB
Analysis ID: 528752
MD5: 12043cc1462a781e9ea20eb5eeb55e5e
SHA1: e4130164d83e593541b6965e28c081bafa618ede
SHA256: f1a4ed45d580688ed0acc2e7e0aabeb44ead0011661b9a1f51fdaaa8b64bb70f
Tags: 32armelfmirai
Infos:

Detection

Score: 52
Range: 0 - 100
Whitelisted: false

Signatures

Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sample contains only a LOAD segment without any section mappings
Yara signature match
Uses the "uname" system call to query kernel version information (possible evasion)
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)

Classification

AV Detection:

barindex
Multi AV Scanner detection for submitted file
Source: ND41FX6xbB Virustotal: Detection: 30% Perma Link

Networking:

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Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
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: global traffic TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: unknown Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 42836 -> 443
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: unknown TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: ND41FX6xbB String found in binary or memory: http://upx.sf.net

System Summary:

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Sample contains only a LOAD segment without any section mappings
Source: LOAD without section mappings Program segment: 0x8000
Yara signature match
Source: ND41FX6xbB, type: SAMPLE Matched rule: SUSP_ELF_LNX_UPX_Compressed_File date = 2018-12-12, author = Florian Roth, description = Detects a suspicious ELF binary with UPX compression, reference = Internal Research, score = 038ff8b2fef16f8ee9d70e6c219c5f380afe1a21761791e8cbda21fa4d09fdb4
Source: classification engine Classification label: mal52.evad.lin@0/0@0/0

Data Obfuscation:

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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. $

Malware Analysis System Evasion:

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Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/ND41FX6xbB (PID: 5220) Queries kernel information via 'uname': Jump to behavior
Source: ND41FX6xbB, 5220.1.00000000f5095392.0000000077bc2f81.rw-.sdmp Binary or memory string: zx86_64/usr/bin/qemu-arm/tmp/ND41FX6xbBSUDO_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/ND41FX6xbB
Source: ND41FX6xbB, 5220.1.000000008353051a.000000006e463d0a.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/arm
Source: ND41FX6xbB, 5220.1.000000008353051a.000000006e463d0a.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: ND41FX6xbB, 5220.1.00000000f5095392.0000000077bc2f81.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: ND41FX6xbB, 5220.1.00000000f5095392.0000000077bc2f81.rw-.sdmp Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs