Linux Analysis Report
arm.elf

Overview

General Information

Sample name: arm.elf
Analysis ID: 1545006
MD5: a811d4d3004094e19bee8119da2282af
SHA1: 7dd7d1a540fff0da34a517554ee6a11b7858ce61
SHA256: e351fbfc77691d62595e3e261876024a1a31a8586d72805a333f0b4ce8d00699
Tags: elfuser-abuse_ch
Infos:

Detection

Score: 52
Range: 0 - 100
Whitelisted: false

Signatures

Multi AV Scanner detection for submitted file
Connects to many ports of the same IP (likely port scanning)
Detected TCP or UDP traffic on non-standard ports
Enumerates processes within the "proc" file system
Sample has stripped symbol table
Sample listens on a socket
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Tries to resolve domain names, but no domain seems valid (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: arm.elf ReversingLabs: Detection: 52%

Networking
barindex
Connects to many ports of the same IP (likely port scanning)
Source: global traffic TCP traffic: 193.84.71.119 ports 38241,1,2,3,4,8
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.23:35438 -> 193.84.71.119:38241
Sample listens on a socket
Source: /tmp/arm.elf (PID: 6233) Socket: 127.0.0.1:63841 Jump to behavior
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
Tries to resolve domain names, but no domain seems valid (expired dropper behavior)
Source: unknown DNS traffic detected: query: 193.84.71.119 replaycode: Name error (3)
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
Source: unknown TCP traffic detected without corresponding DNS query: 193.84.71.119
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: global traffic DNS traffic detected: DNS query: 193.84.71.119
Source: unknown Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 42836 -> 443
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Source: classification engine Classification label: mal52.troj.linELF@0/0@645/0
Enumerates processes within the "proc" file system
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1582/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2033/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1612/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1579/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1699/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1335/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1698/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2028/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1334/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1576/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2025/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2146/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/910/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/912/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/517/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/759/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/918/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1594/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1349/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1623/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/761/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1622/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/884/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1983/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2038/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1344/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1465/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1586/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1860/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1463/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2156/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/800/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/801/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1629/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1627/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1900/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/491/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2050/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1877/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/772/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1633/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1599/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1632/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/774/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1477/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/654/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/896/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1476/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1872/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2048/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/655/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1475/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/656/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/777/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/657/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/658/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/419/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/936/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1639/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1638/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2180/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1809/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1494/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1890/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2063/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2062/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1888/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1886/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/420/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1489/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/785/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1642/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/788/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/667/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/789/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1648/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2078/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2077/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2074/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/670/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/793/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1656/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1654/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/674/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1532/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/796/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/675/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/797/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/676/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/677/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2069/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2102/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/799/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2080/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2084/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2083/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1668/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1664/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1389/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/840/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/720/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2114/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/721/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/1661/maps Jump to behavior
Source: /tmp/arm.elf (PID: 6240) File opened: /proc/2079/maps Jump to behavior
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/arm.elf (PID: 6233) Queries kernel information via 'uname': Jump to behavior
Source: arm.elf, 6233.1.000055fc3885d000.000055fc3898b000.rw-.sdmp, arm.elf, 6235.1.000055fc3885d000.000055fc3898b000.rw-.sdmp, arm.elf, 6239.1.000055fc3885d000.000055fc3898b000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/arm
Source: arm.elf, 6233.1.00007ffcfacb7000.00007ffcfacd8000.rw-.sdmp, arm.elf, 6235.1.00007ffcfacb7000.00007ffcfacd8000.rw-.sdmp, arm.elf, 6239.1.00007ffcfacb7000.00007ffcfacd8000.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, 6233.1.000055fc3885d000.000055fc3898b000.rw-.sdmp, arm.elf, 6235.1.000055fc3885d000.000055fc3898b000.rw-.sdmp, arm.elf, 6239.1.000055fc3885d000.000055fc3898b000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: arm.elf, 6233.1.00007ffcfacb7000.00007ffcfacd8000.rw-.sdmp, arm.elf, 6235.1.00007ffcfacb7000.00007ffcfacd8000.rw-.sdmp, arm.elf, 6239.1.00007ffcfacb7000.00007ffcfacd8000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm

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
193.84.71.119
 unknown Poland
199478 RADIOCABLE-ASES true
91.189.91.43
 unknown United Kingdom
41231 CANONICAL-ASGB false
91.189.91.42
 unknown United Kingdom
41231 CANONICAL-ASGB false

Contacted Domains

Name IP Active
193.84.71.119 unknown unknown