Linux Analysis Report
arm7.elf

ID:	1427776
Product:	CloudBasic
Start time:	07:00:11
Start date:	18.04.2024
Sample:	arm7.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:	5f7f793a62d71883f939e3f911743f4c
SHA1:	92caabfe14df59d1a47e5b1dbbd550b3ecb0fd8f
SHA256:	c2666c6409b6c19733c1c44751da68590fb41b6c395312766879be72aa578299
Filetype:	ELF Executable and Linkable format (generic) (4004/1) 100.00%

Name	Type	MD5	SHA1	SHA256

AV Detection

Source: arm7.elf

Virustotal: Detection: 35%

Perma Link

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: arm7.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 3.96 Copyright (C) 1996-2020 the UPX Team. All Rights Reserved. $

Hooking and other Techniques for Hiding and Protection

Source: arm7.elf

Submission file: segment LOAD with 7.9744 entropy (max. 8.0)

Malware Analysis System Evasion

Source: /tmp/arm7.elf (PID: 6217)

Queries kernel information via 'uname':

Jump to behavior

Source: arm7.elf, 6217.1.00007fff7cc70000.00007fff7cc91000.rw-.sdmp	Binary or memory string: 8x86_64/usr/bin/qemu-arm/tmp/arm7.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/arm7.elf
Source: arm7.elf, 6217.1.000055613a250000.000055613a37e000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: arm7.elf, 6217.1.00007fff7cc70000.00007fff7cc91000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: arm7.elf, 6217.1.000055613a250000.000055613a37e000.rw-.sdmp	Binary or memory string: s&:aUPu&:aUPr&:aU!/etc/qemu-binfmt/arm
Source: arm7.elf, 6217.1.00007fff7cc70000.00007fff7cc91000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped