Linux Analysis Report
tftp.elf

Overview

General Information

Sample name: tftp.elf
Analysis ID: 1542673
MD5: b9302bfe07d3b40761862df2d6c1136b
SHA1: 18bf6a9a39111bfa5ddd2159364111443ed91801
SHA256: e579b9628dfac1af6839499f629bf6e3390df5e2307fa5320b2449e6488d400d
Tags: elfuser-abuse_ch
Infos:

Detection

Score: 1
Range: 0 - 100
Whitelisted: false

Signatures

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

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: clean1.linELF@0/0@0/0
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/tftp.elf (PID: 6228) Queries kernel information via 'uname': Jump to behavior
Source: tftp.elf, 6228.1.00007ffe03f10000.00007ffe03f31000.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, 6228.1.0000564cf21f3000.0000564cf22ff000.rw-.sdmp Binary or memory string: LVrg.qemu.gdb.arm.sys.regs">
Source: tftp.elf, 6228.1.0000564cf21f3000.0000564cf22ff000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: tftp.elf, 6228.1.00007ffe03f10000.00007ffe03f31000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: tftp.elf, 6228.1.0000564cf21f3000.0000564cf22ff000.rw-.sdmp Binary or memory string: LV!/etc/qemu-binfmt/arm
Source: tftp.elf, 6228.1.0000564cf21f3000.0000564cf22ff000.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