Linux Analysis Report
na.elf

ID:	1527089
Product:	CloudBasic
Start time:	21:02:24
Start date:	06.10.2024
Sample:	na.elf
Cookbook:	defaultlinuxfilecookbook.jbs
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)
Architecture:	LINUX
MD5:	69dd230498c2faab43689ce330e58f97
SHA1:	72ffc51ae38c762eb71854019bc923f3c8cfc671
SHA256:	aa024e75a8c64b74d1cd6c48da903189c62537ea629a96a7fb5b476f285673ec
Filetype:	ELF Executable and Linkable format (generic) (4004/1) 100.00%

Name	Type	MD5	SHA1	SHA256

AV Detection

Source: na.elf

ReversingLabs: Detection: 47%

Networking

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: na.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

System Summary

Source: LOAD without section mappings

Program segment: 0x8000

Source: classification engine

Classification label: mal52.evad.linELF@0/0@0/0

Data Obfuscation

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. $

Hooking and other Techniques for Hiding and Protection

Source: na.elf

Submission file: segment LOAD with 7.9628 entropy (max. 8.0)

Malware Analysis System Evasion

Source: /tmp/na.elf (PID: 6237)

Queries kernel information via 'uname':

Jump to behavior

Source: na.elf, 6237.1.00007ffd08b41000.00007ffd08b62000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/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, 6237.1.000055ec59292000.000055ec59460000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: na.elf, 6237.1.000055ec59292000.000055ec59460000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: na.elf, 6237.1.00007ffd08b41000.00007ffd08b62000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: na.elf, 6237.1.00007ffd08b41000.00007ffd08b62000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped