Linux Analysis Report
arm7-20240504-1301.elf

Overview

General Information

Sample name: arm7-20240504-1301.elf
Analysis ID: 1436349
MD5: 6b9ca0dfbb628c3abe4ab3a8eeae0ed0
SHA1: 536d3ed814df77a5a88cf3f9f6f3893d932a6744
SHA256: 8dcc8bed8d439fc5110a49797089cb45458908794417408b7adf0efef658b26d
Infos:

Detection

Score: 56
Range: 0 - 100
Whitelisted: false

Signatures

Multi AV Scanner detection for submitted file
Manipulation of devices in /dev
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
Reads system information from the proc file system
Sample contains only a LOAD segment without any section mappings
Sample listens on a socket
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

AV Detection
barindex
Multi AV Scanner detection for submitted file
Source: arm7-20240504-1301.elf ReversingLabs: Detection: 21%
Source: arm7-20240504-1301.elf Virustotal: Detection: 9% Perma Link
Sample listens on a socket
Source: /tmp/arm7-20240504-1301.elf (PID: 5427) Socket: 127.0.0.1::46373 Jump to behavior
Source: arm7-20240504-1301.elf String found in binary or memory: http://upx.sf.net
Sample contains only a LOAD segment without any section mappings
Source: LOAD without section mappings Program segment: 0x8000
Source: classification engine Classification label: mal56.evad.linELF@0/0@0/0

Data Obfuscation
barindex
Manipulation of devices in /dev
Source: /tmp/arm7-20240504-1301.elf (PID: 5433) Deleted: /dev/null Jump to behavior
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. $
Executes the "rm" command used to delete files or directories
Source: /usr/bin/dash (PID: 5439) Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.eA6gvjMZEk /tmp/tmp.jCBnesXNVP /tmp/tmp.cyr7Wvnjnh Jump to behavior
Source: /usr/bin/dash (PID: 5448) Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.eA6gvjMZEk /tmp/tmp.jCBnesXNVP /tmp/tmp.cyr7Wvnjnh Jump to behavior
Reads system information from the proc file system
Source: /tmp/arm7-20240504-1301.elf (PID: 5429) Reads from proc file: /proc/stat Jump to behavior
ELF contains segments with high entropy indicating compressed/encrypted content
Source: arm7-20240504-1301.elf Submission file: segment LOAD with 7.7346 entropy (max. 8.0)
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/arm7-20240504-1301.elf (PID: 5427) Queries kernel information via 'uname': Jump to behavior
Source: arm7-20240504-1301.elf, 5427.1.00007fffbada5000.00007fffbadc6000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/arm7-20240504-1301.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/arm7-20240504-1301.elf
Source: arm7-20240504-1301.elf, 5427.1.0000560c46469000.0000560c46679000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: arm7-20240504-1301.elf, 5427.1.0000560c46469000.0000560c46679000.rw-.sdmp Binary or memory string: V!/etc/qemu-binfmt/arm
Source: arm7-20240504-1301.elf, 5427.1.00007fffbada5000.00007fffbadc6000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm

No Screenshots

⊘No contacted IP infos