Linux Analysis Report
arm.elf

Overview

General Information

Sample name: arm.elf
Analysis ID: 1543425
MD5: 857d0eb12441c4af22f9b0288ab2300c
SHA1: d83e8b6f80cf9142bb152ae9cef590c3dec6bd22
SHA256: 18b5860085625e6e38dd48fd586c2031a3c7f6606490943c7c693f3165764c60
Tags: elfuser-abuse_ch
Infos:

Detection

Score: 1
Range: 0 - 100
Whitelisted: false

Signatures

Sample has stripped symbol table
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

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: ELF static info symbol of initial sample .symtab present: no
Source: classification engine Classification label: clean1.linELF@0/0@0/0
Source: /tmp/arm.elf (PID: 6234) Queries kernel information via 'uname': Jump to behavior
Source: arm.elf, 6234.1.000055f009a0f000.000055f009b3d000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/arm
Source: arm.elf, 6234.1.00007ffefcce6000.00007ffefcd07000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/arm.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/arm.elf
Source: arm.elf, 6234.1.000055f009a0f000.000055f009b3d000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: arm.elf, 6234.1.00007ffefcce6000.00007ffefcd07000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs