Linux Analysis Report
tftp.elf

Overview

General Information

Sample name: tftp.elf
Analysis ID: 1546356
MD5: 6ac3efa406e009a976fb4247d6241a80
SHA1: e137b87099cd9e15b6fc08f658673a1bf03d4d1e
SHA256: b51e9d3e0fb2363e217706688dfe1a56ffb29ed7eaf6259f82efc328ec56cddd
Tags: elfuser-abuse_ch
Infos:

Detection

Score: 48
Range: 0 - 100
Whitelisted: false

Signatures

Multi AV Scanner detection for submitted file
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

AV Detection
barindex
Multi AV Scanner detection for submitted file
Source: tftp.elf ReversingLabs: Detection: 15%
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
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: unknown Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 42836 -> 443
Source: classification engine Classification label: mal48.linELF@0/0@0/0
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/tftp.elf (PID: 6212) Queries kernel information via 'uname': Jump to behavior
Source: tftp.elf, 6212.1.00005599e491c000.00005599e4a28000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/arm
Source: tftp.elf, 6212.1.00007ffecaec2000.00007ffecaee3000.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, 6212.1.00005599e491c000.00005599e4a28000.rw-.sdmp Binary or memory string: Urg.qemu.gdb.arm.sys.regs">
Source: tftp.elf, 6212.1.00005599e491c000.00005599e4a28000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: tftp.elf, 6212.1.00007ffecaec2000.00007ffecaee3000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: tftp.elf, 6212.1.00005599e491c000.00005599e4a28000.rw-.sdmp Binary or memory string: rg.qemu.gdb.arm.sys.regs">
windows-stand
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
109.202.202.202
 unknown Switzerland
13030 INIT7CH false
91.189.91.43
 unknown United Kingdom
41231 CANONICAL-ASGB false
91.189.91.42
 unknown United Kingdom
41231 CANONICAL-ASGB false