Linux Analysis Report
sora.arm

Overview

General Information

Sample Name: sora.arm
Analysis ID: 626479
MD5: 7799db04192fa39c4d8d2986fbc472a8
SHA1: 15dbc1cc83b869cd3eab35cd02c994507d4d0604
SHA256: 600656d40c15432fe35987fec3d346cf9f34ee9b1ae1d23706925d6c8b6e57b8
Infos:

Detection

Mirai
Score: 60
Range: 0 - 100
Whitelisted: false

Signatures

Yara detected Mirai
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sample contains only a LOAD segment without any section mappings
Uses the "uname" system call to query kernel version information (possible evasion)
Enumerates processes within the "proc" file system
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Detected TCP or UDP traffic on non-standard ports
Sample listens on a socket
Sample tries to kill a process (SIGKILL)

Classification

AV Detection

barindex
Source: sora.arm Virustotal: Detection: 42% Perma Link
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: global traffic TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global traffic TCP traffic: 192.168.2.23:45728 -> 104.131.58.204:1312
Source: /tmp/sora.arm (PID: 6228) Socket: 0.0.0.0::0 Jump to behavior
Source: /tmp/sora.arm (PID: 6228) Socket: 0.0.0.0::53413 Jump to behavior
Source: /tmp/sora.arm (PID: 6228) Socket: 0.0.0.0::80 Jump to behavior
Source: /tmp/sora.arm (PID: 6228) Socket: 0.0.0.0::37215 Jump to behavior
Source: /tmp/sora.arm (PID: 6234) Socket: 0.0.0.0::0 Jump to behavior
Source: unknown Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 42836 -> 443
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: 104.131.58.204
Source: unknown TCP traffic detected without corresponding DNS query: 90.142.129.13
Source: unknown TCP traffic detected without corresponding DNS query: 112.220.25.155
Source: unknown TCP traffic detected without corresponding DNS query: 218.116.26.13
Source: unknown TCP traffic detected without corresponding DNS query: 41.49.140.15
Source: unknown TCP traffic detected without corresponding DNS query: 211.14.213.103
Source: unknown TCP traffic detected without corresponding DNS query: 221.214.104.243
Source: unknown TCP traffic detected without corresponding DNS query: 14.27.145.200
Source: unknown TCP traffic detected without corresponding DNS query: 89.175.35.111
Source: unknown TCP traffic detected without corresponding DNS query: 171.15.147.154
Source: unknown TCP traffic detected without corresponding DNS query: 221.201.182.216
Source: unknown TCP traffic detected without corresponding DNS query: 190.174.174.34
Source: unknown TCP traffic detected without corresponding DNS query: 78.239.7.93
Source: unknown TCP traffic detected without corresponding DNS query: 45.15.75.43
Source: unknown TCP traffic detected without corresponding DNS query: 194.50.244.199
Source: unknown TCP traffic detected without corresponding DNS query: 108.77.125.24
Source: unknown TCP traffic detected without corresponding DNS query: 253.173.219.103
Source: unknown TCP traffic detected without corresponding DNS query: 181.156.71.179
Source: unknown TCP traffic detected without corresponding DNS query: 181.119.86.241
Source: unknown TCP traffic detected without corresponding DNS query: 57.103.122.74
Source: unknown TCP traffic detected without corresponding DNS query: 86.26.239.206
Source: unknown TCP traffic detected without corresponding DNS query: 202.102.229.41
Source: unknown TCP traffic detected without corresponding DNS query: 146.35.195.126
Source: unknown TCP traffic detected without corresponding DNS query: 197.108.214.179
Source: unknown TCP traffic detected without corresponding DNS query: 243.16.11.26
Source: unknown TCP traffic detected without corresponding DNS query: 165.168.142.144
Source: unknown TCP traffic detected without corresponding DNS query: 162.169.120.3
Source: unknown TCP traffic detected without corresponding DNS query: 244.165.245.90
Source: unknown TCP traffic detected without corresponding DNS query: 62.50.50.73
Source: unknown TCP traffic detected without corresponding DNS query: 24.56.245.123
Source: unknown TCP traffic detected without corresponding DNS query: 169.120.116.184
Source: unknown TCP traffic detected without corresponding DNS query: 57.177.179.33
Source: unknown TCP traffic detected without corresponding DNS query: 219.180.250.187
Source: unknown TCP traffic detected without corresponding DNS query: 251.71.75.190
Source: unknown TCP traffic detected without corresponding DNS query: 156.225.109.220
Source: unknown TCP traffic detected without corresponding DNS query: 91.65.68.150
Source: unknown TCP traffic detected without corresponding DNS query: 188.144.215.180
Source: unknown TCP traffic detected without corresponding DNS query: 16.130.211.183
Source: unknown TCP traffic detected without corresponding DNS query: 14.231.82.209
Source: unknown TCP traffic detected without corresponding DNS query: 165.114.156.179
Source: unknown TCP traffic detected without corresponding DNS query: 146.104.86.150
Source: unknown TCP traffic detected without corresponding DNS query: 156.67.159.142
Source: unknown TCP traffic detected without corresponding DNS query: 162.58.175.53
Source: unknown TCP traffic detected without corresponding DNS query: 91.209.199.175
Source: unknown TCP traffic detected without corresponding DNS query: 128.1.51.63
Source: unknown TCP traffic detected without corresponding DNS query: 62.128.207.203
Source: unknown TCP traffic detected without corresponding DNS query: 207.21.144.165
Source: unknown TCP traffic detected without corresponding DNS query: 13.193.175.91
Source: sora.arm String found in binary or memory: http://upx.sf.net
Source: LOAD without section mappings Program segment: 0x8000
Source: /tmp/sora.arm (PID: 6228) SIGKILL sent: pid: 936, result: successful Jump to behavior
Source: /tmp/sora.arm (PID: 6234) SIGKILL sent: pid: 936, result: successful Jump to behavior
Source: classification engine Classification label: mal60.troj.evad.linARM@0/0@0/0

Data Obfuscation

barindex
Source: initial sample String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample String containing UPX found: $Id: UPX 3.94 Copyright (C) 1996-2017 the UPX Team. All Rights Reserved. $
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/491/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/793/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/772/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/796/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/774/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/797/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/777/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/799/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/658/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/912/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/759/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/936/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/918/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/1/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/761/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/785/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/884/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/720/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/721/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/788/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/789/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/800/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/801/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/847/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6234) File opened: /proc/904/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/491/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/793/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/772/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/796/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/774/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/797/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/777/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/799/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/658/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/912/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/759/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/936/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/918/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/1/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/761/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/785/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/884/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/720/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/721/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/788/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/789/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/800/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/801/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/847/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6228) File opened: /proc/904/fd Jump to behavior
Source: /tmp/sora.arm (PID: 6226) Queries kernel information via 'uname': Jump to behavior
Source: sora.arm, 6226.1.00000000a25b81b1.00000000ff87532e.rw-.sdmp, sora.arm, 6228.1.00000000a25b81b1.00000000ff87532e.rw-.sdmp, sora.arm, 6326.1.00000000a25b81b1.00000000ff87532e.rw-.sdmp, sora.arm, 6344.1.00000000a25b81b1.00000000ff87532e.rw-.sdmp, sora.arm, 6335.1.00000000a25b81b1.00000000ff87532e.rw-.sdmp, sora.arm, 6230.1.00000000a25b81b1.00000000ff87532e.rw-.sdmp, sora.arm, 6325.1.00000000a25b81b1.00000000ff87532e.rw-.sdmp, sora.arm, 6235.1.00000000a25b81b1.00000000ff87532e.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/arm
Source: sora.arm, 6226.1.00000000d4f1622b.00000000bf8ca384.rw-.sdmp, sora.arm, 6228.1.00000000d4f1622b.00000000bf8ca384.rw-.sdmp, sora.arm, 6326.1.00000000d4f1622b.00000000bf8ca384.rw-.sdmp, sora.arm, 6344.1.00000000d4f1622b.00000000bf8ca384.rw-.sdmp, sora.arm, 6335.1.00000000d4f1622b.00000000bf8ca384.rw-.sdmp, sora.arm, 6230.1.00000000d4f1622b.00000000bf8ca384.rw-.sdmp, sora.arm, 6325.1.00000000d4f1622b.00000000bf8ca384.rw-.sdmp, sora.arm, 6235.1.00000000d4f1622b.00000000bf8ca384.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/sora.armSUDO_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/sora.arm
Source: sora.arm, 6226.1.00000000a25b81b1.00000000ff87532e.rw-.sdmp, sora.arm, 6228.1.00000000a25b81b1.00000000ff87532e.rw-.sdmp, sora.arm, 6326.1.00000000a25b81b1.00000000ff87532e.rw-.sdmp, sora.arm, 6344.1.00000000a25b81b1.00000000ff87532e.rw-.sdmp, sora.arm, 6335.1.00000000a25b81b1.00000000ff87532e.rw-.sdmp, sora.arm, 6230.1.00000000a25b81b1.00000000ff87532e.rw-.sdmp, sora.arm, 6325.1.00000000a25b81b1.00000000ff87532e.rw-.sdmp, sora.arm, 6235.1.00000000a25b81b1.00000000ff87532e.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: sora.arm, 6226.1.00000000d4f1622b.00000000bf8ca384.rw-.sdmp, sora.arm, 6228.1.00000000d4f1622b.00000000bf8ca384.rw-.sdmp, sora.arm, 6326.1.00000000d4f1622b.00000000bf8ca384.rw-.sdmp, sora.arm, 6344.1.00000000d4f1622b.00000000bf8ca384.rw-.sdmp, sora.arm, 6335.1.00000000d4f1622b.00000000bf8ca384.rw-.sdmp, sora.arm, 6230.1.00000000d4f1622b.00000000bf8ca384.rw-.sdmp, sora.arm, 6325.1.00000000d4f1622b.00000000bf8ca384.rw-.sdmp, sora.arm, 6235.1.00000000d4f1622b.00000000bf8ca384.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm

Stealing of Sensitive Information

barindex
Source: Yara match File source: dump.pcap, type: PCAP

Remote Access Functionality

barindex
Source: Yara match File source: dump.pcap, type: PCAP
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs