Linux Analysis Report
arm.b.elf

Overview

General Information

Sample name: arm.b.elf
Analysis ID: 1561848
MD5: cd343187d3c906e0f31915f0cfe530cc
SHA1: 68c74983d1be7dae6cc0fd9e4e8305bc5cfc74ff
SHA256: 9342f87d3a6d1a99f9cdb08dd90abd7a5f7e96adf5b682b96c4341624e442252
Tags: elfuser-abuse_ch
Infos:

Detection

Score: 48
Range: 0 - 100
Whitelisted: false

Signatures

Multi AV Scanner detection for submitted file
Detected TCP or UDP traffic on non-standard ports
Executes the "rm" command used to delete files or directories
Sample has stripped symbol table
Sample listens on a socket
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.b.elf ReversingLabs: Detection: 39%
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.23:59618 -> 154.213.187.68:6075
Sample listens on a socket
Source: /tmp/arm.b.elf (PID: 6243) Socket: 127.0.0.1:31243 Jump to behavior
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
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: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown TCP traffic detected without corresponding DNS query: 154.213.187.68
Source: unknown Network traffic detected: HTTP traffic on port 443 -> 33606
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: mal48.linELF@0/0@0/0
Executes the "rm" command used to delete files or directories
Source: /usr/bin/dash (PID: 6217) Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.MBi4uDqKfa /tmp/tmp.iz63md9wLs /tmp/tmp.cAMoGgC5Xb Jump to behavior
Source: /usr/bin/dash (PID: 6218) Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.MBi4uDqKfa /tmp/tmp.iz63md9wLs /tmp/tmp.cAMoGgC5Xb Jump to behavior
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/arm.b.elf (PID: 6243) Queries kernel information via 'uname': Jump to behavior
Source: arm.b.elf, 6243.1.000055f3932cf000.000055f3933fd000.rw-.sdmp, arm.b.elf, 6245.1.000055f3932cf000.000055f3933fd000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/arm
Source: arm.b.elf, 6243.1.000055f3932cf000.000055f3933fd000.rw-.sdmp, arm.b.elf, 6245.1.000055f3932cf000.000055f3933fd000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: arm.b.elf, 6243.1.00007ffe1d655000.00007ffe1d676000.rw-.sdmp, arm.b.elf, 6245.1.00007ffe1d655000.00007ffe1d676000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: arm.b.elf, 6243.1.00007ffe1d655000.00007ffe1d676000.rw-.sdmp, arm.b.elf, 6245.1.00007ffe1d655000.00007ffe1d676000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/arm.b.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.b.elf
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
154.213.187.68
 unknown Seychelles
22769 DDOSING-BGP-NETWORKUS false
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