Linux Analysis Report
tftp.elf

Overview

General Information

Sample name: tftp.elf
Analysis ID: 1543501
MD5: a7a64459fc777199626a0112311ece64
SHA1: 398b1868db068d9fd968d4b17942852964339e14
SHA256: d8332267b97104558310187113772b222046507d27bfba9f6148157698127f39
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: 6256) Queries kernel information via 'uname': Jump to behavior
Source: tftp.elf, 6256.1.000055f72ef1b000.000055f72f027000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/arm
Source: tftp.elf, 6256.1.00007fffdf581000.00007fffdf5a2000.rw-.sdmp Binary or memory string: sx86_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, 6256.1.000055f72ef1b000.000055f72f027000.rw-.sdmp Binary or memory string: Urg.qemu.gdb.arm.sys.regs">
Source: tftp.elf, 6256.1.000055f72ef1b000.000055f72f027000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: tftp.elf, 6256.1.00007fffdf581000.00007fffdf5a2000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: tftp.elf, 6256.1.000055f72ef1b000.000055f72f027000.rw-.sdmp Binary or memory string: rg.qemu.gdb.arm.sys.regs">

No Screenshots

  • 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