Linux Analysis Report
tftp.elf

ID:	1668992
Product:	CloudBasic
Start time:	03:39:33
Start date:	19.04.2025
Sample:	tftp.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:	a3ab7e62b0bd2d6efa7a4897de3c403f
SHA1:	30c4cfa6ce2a7bdb5c051ad5a01be391eff762f2
SHA256:	b5c27e4e16ecd8b317540374ad1f3a75b8dd21f5e9628fb6c814aadaa546353b
Filetype:	ELF Executable and Linkable format (generic) (4004/1) 100.00%

Name	Type	MD5	SHA1	SHA256

AV Detection

Source: tftp.elf	Virustotal: Detection: 21%			Perma Link
Source: tftp.elf	ReversingLabs: Detection: 19%

Networking

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: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
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: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43

Source: unknown	Network traffic detected: HTTP traffic on port 39246 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 39246
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

System Summary

Source: classification engine

Classification label: mal48.linELF@0/0@0/0

Persistence and Installation Behavior

Source: /usr/bin/dash (PID: 6314)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.OGgumjUYWx /tmp/tmp.4dxlHcGEqS /tmp/tmp.pynADpsMy4			Jump to behavior
Source: /usr/bin/dash (PID: 6315)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.OGgumjUYWx /tmp/tmp.4dxlHcGEqS /tmp/tmp.pynADpsMy4			Jump to behavior

Malware Analysis System Evasion

Source: /tmp/tftp.elf (PID: 6234)

Queries kernel information via 'uname':

Jump to behavior

Source: tftp.elf, 6234.1.00005560ee95d000.00005560eea69000.rw-.sdmp	Binary or memory string: `U!/etc/qemu-binfmt/arm
Source: tftp.elf, 6234.1.00007fff6ef68000.00007fff6ef89000.rw-.sdmp	Binary or memory string: &+x86_64/usr/bin/qemu-arm/tmp/tftp.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/tftp.elf
Source: tftp.elf, 6234.1.00005560ee95d000.00005560eea69000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: tftp.elf, 6234.1.00007fff6ef68000.00007fff6ef89000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: tftp.elf, 6234.1.00005560ee95d000.00005560eea69000.rw-.sdmp	Binary or memory string: rg.qemu.gdb.arm.sys.regs">
Source: tftp.elf, 6234.1.00005560ee95d000.00005560eea69000.rw-.sdmp	Binary or memory string: `Urg.qemu.gdb.arm.sys.regs">