Linux Analysis Report
sora.arm7

Overview

General Information

Sample Name: sora.arm7
Analysis ID: 626485
MD5: 5af0f40eec19ef4da80207788a5b6a97
SHA1: b570d2ec88d6384d68885c4671537903bbd7e640
SHA256: 64fada1edd66124152f083a8499411e0599bb5a005cc5b8cd31a89b97cb6c0a1
Infos:

Detection

Mirai
Score: 56
Range: 0 - 100
Whitelisted: false

Signatures

Yara detected Mirai
Sample is packed with UPX
Uses known network protocols on non-standard ports
Sample contains only a LOAD segment without any section mappings
Yara signature match
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

Networking

barindex
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48628
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48632
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48636
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48640
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48642
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48644
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48646
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48648
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48650
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48656
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33518
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33524
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33532
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33554
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33570
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33582
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33598
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33612
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33626
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33630
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: global traffic TCP traffic: 192.168.2.23:45728 -> 104.131.58.204:1312
Source: /tmp/sora.arm7 (PID: 6240) Socket: 0.0.0.0::0 Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) 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: 104.131.58.204
Source: unknown TCP traffic detected without corresponding DNS query: 147.90.130.90
Source: unknown TCP traffic detected without corresponding DNS query: 201.115.11.88
Source: unknown TCP traffic detected without corresponding DNS query: 168.183.253.152
Source: unknown TCP traffic detected without corresponding DNS query: 169.17.72.41
Source: unknown TCP traffic detected without corresponding DNS query: 70.41.126.72
Source: unknown TCP traffic detected without corresponding DNS query: 206.86.190.170
Source: unknown TCP traffic detected without corresponding DNS query: 54.125.78.236
Source: unknown TCP traffic detected without corresponding DNS query: 102.164.184.245
Source: unknown TCP traffic detected without corresponding DNS query: 111.225.54.176
Source: unknown TCP traffic detected without corresponding DNS query: 103.178.194.150
Source: unknown TCP traffic detected without corresponding DNS query: 162.65.244.93
Source: unknown TCP traffic detected without corresponding DNS query: 247.206.45.219
Source: unknown TCP traffic detected without corresponding DNS query: 122.98.143.130
Source: unknown TCP traffic detected without corresponding DNS query: 24.173.174.99
Source: unknown TCP traffic detected without corresponding DNS query: 107.51.108.10
Source: unknown TCP traffic detected without corresponding DNS query: 66.24.90.51
Source: unknown TCP traffic detected without corresponding DNS query: 69.240.67.229
Source: unknown TCP traffic detected without corresponding DNS query: 125.22.22.195
Source: unknown TCP traffic detected without corresponding DNS query: 151.106.68.40
Source: unknown TCP traffic detected without corresponding DNS query: 116.32.79.218
Source: unknown TCP traffic detected without corresponding DNS query: 219.11.182.128
Source: unknown TCP traffic detected without corresponding DNS query: 74.222.152.155
Source: unknown TCP traffic detected without corresponding DNS query: 244.223.188.78
Source: unknown TCP traffic detected without corresponding DNS query: 79.254.242.106
Source: unknown TCP traffic detected without corresponding DNS query: 73.158.16.171
Source: unknown TCP traffic detected without corresponding DNS query: 46.40.199.102
Source: unknown TCP traffic detected without corresponding DNS query: 252.187.91.63
Source: unknown TCP traffic detected without corresponding DNS query: 206.52.153.7
Source: unknown TCP traffic detected without corresponding DNS query: 221.207.132.32
Source: unknown TCP traffic detected without corresponding DNS query: 249.174.106.133
Source: unknown TCP traffic detected without corresponding DNS query: 209.152.198.90
Source: unknown TCP traffic detected without corresponding DNS query: 213.221.221.58
Source: unknown TCP traffic detected without corresponding DNS query: 125.223.238.229
Source: unknown TCP traffic detected without corresponding DNS query: 183.252.212.185
Source: unknown TCP traffic detected without corresponding DNS query: 111.57.57.230
Source: unknown TCP traffic detected without corresponding DNS query: 44.91.219.197
Source: unknown TCP traffic detected without corresponding DNS query: 189.225.250.246
Source: unknown TCP traffic detected without corresponding DNS query: 66.198.60.234
Source: unknown TCP traffic detected without corresponding DNS query: 166.25.186.173
Source: unknown TCP traffic detected without corresponding DNS query: 5.157.253.240
Source: unknown TCP traffic detected without corresponding DNS query: 19.250.241.195
Source: unknown TCP traffic detected without corresponding DNS query: 241.125.130.132
Source: unknown TCP traffic detected without corresponding DNS query: 187.117.138.193
Source: unknown TCP traffic detected without corresponding DNS query: 146.117.255.83
Source: unknown TCP traffic detected without corresponding DNS query: 19.160.122.0
Source: unknown TCP traffic detected without corresponding DNS query: 18.154.92.193
Source: unknown TCP traffic detected without corresponding DNS query: 126.11.207.77
Source: unknown TCP traffic detected without corresponding DNS query: 201.105.75.126
Source: unknown TCP traffic detected without corresponding DNS query: 220.130.75.25
Source: sora.arm7 String found in binary or memory: http://upx.sf.net
Source: LOAD without section mappings Program segment: 0x8000
Source: sora.arm7, type: SAMPLE Matched rule: SUSP_ELF_LNX_UPX_Compressed_File date = 2018-12-12, author = Florian Roth, description = Detects a suspicious ELF binary with UPX compression, reference = Internal Research, score = 038ff8b2fef16f8ee9d70e6c219c5f380afe1a21761791e8cbda21fa4d09fdb4
Source: /tmp/sora.arm7 (PID: 6240) SIGKILL sent: pid: 936, result: successful Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) SIGKILL sent: pid: 936, result: successful Jump to behavior
Source: classification engine Classification label: mal56.troj.evad.linARM7@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.arm7 (PID: 6240) File opened: /proc/491/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/793/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/772/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/796/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/774/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/797/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/777/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/799/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/658/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/912/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/759/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/936/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/918/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/1/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/761/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/785/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/884/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/720/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/721/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/788/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/789/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/800/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/801/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/847/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6240) File opened: /proc/904/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/491/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/793/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/772/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/796/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/774/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/797/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/777/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/799/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/658/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/912/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/759/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/936/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/918/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/1/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/761/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/785/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/884/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/720/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/721/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/788/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/789/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/800/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/801/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/847/fd Jump to behavior
Source: /tmp/sora.arm7 (PID: 6246) File opened: /proc/904/fd Jump to behavior

Hooking and other Techniques for Hiding and Protection

barindex
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48628
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48632
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48636
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48640
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48642
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48644
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48646
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48648
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48650
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 48656
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33518
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33524
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33532
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33554
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33570
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33582
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33598
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33612
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33626
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 33630
Source: /tmp/sora.arm7 (PID: 6237) Queries kernel information via 'uname': Jump to behavior
Source: sora.arm7, 6237.1.0000000026c28b2d.000000007e79824a.rw-.sdmp, sora.arm7, 6240.1.0000000026c28b2d.000000007e79824a.rw-.sdmp, sora.arm7, 6344.1.0000000026c28b2d.000000007e79824a.rw-.sdmp, sora.arm7, 6358.1.0000000026c28b2d.000000007e79824a.rw-.sdmp, sora.arm7, 6351.1.0000000026c28b2d.000000007e79824a.rw-.sdmp, sora.arm7, 6241.1.0000000026c28b2d.000000007e79824a.rw-.sdmp, sora.arm7, 6341.1.0000000026c28b2d.000000007e79824a.rw-.sdmp, sora.arm7, 6247.1.0000000026c28b2d.000000007e79824a.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/sora.arm7SUDO_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.arm7
Source: sora.arm7, 6237.1.0000000002bd700b.00000000241738ea.rw-.sdmp, sora.arm7, 6240.1.0000000002bd700b.00000000241738ea.rw-.sdmp, sora.arm7, 6344.1.0000000002bd700b.00000000241738ea.rw-.sdmp, sora.arm7, 6358.1.0000000002bd700b.00000000241738ea.rw-.sdmp, sora.arm7, 6351.1.0000000002bd700b.00000000241738ea.rw-.sdmp, sora.arm7, 6241.1.0000000002bd700b.00000000241738ea.rw-.sdmp, sora.arm7, 6341.1.0000000002bd700b.00000000241738ea.rw-.sdmp, sora.arm7, 6247.1.0000000002bd700b.00000000241738ea.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: sora.arm7, 6237.1.0000000026c28b2d.000000007e79824a.rw-.sdmp, sora.arm7, 6240.1.0000000026c28b2d.000000007e79824a.rw-.sdmp, sora.arm7, 6344.1.0000000026c28b2d.000000007e79824a.rw-.sdmp, sora.arm7, 6358.1.0000000026c28b2d.000000007e79824a.rw-.sdmp, sora.arm7, 6351.1.0000000026c28b2d.000000007e79824a.rw-.sdmp, sora.arm7, 6241.1.0000000026c28b2d.000000007e79824a.rw-.sdmp, sora.arm7, 6341.1.0000000026c28b2d.000000007e79824a.rw-.sdmp, sora.arm7, 6247.1.0000000026c28b2d.000000007e79824a.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: sora.arm7, 6237.1.0000000002bd700b.00000000241738ea.rw-.sdmp, sora.arm7, 6240.1.0000000002bd700b.00000000241738ea.rw-.sdmp, sora.arm7, 6344.1.0000000002bd700b.00000000241738ea.rw-.sdmp, sora.arm7, 6358.1.0000000002bd700b.00000000241738ea.rw-.sdmp, sora.arm7, 6351.1.0000000002bd700b.00000000241738ea.rw-.sdmp, sora.arm7, 6241.1.0000000002bd700b.00000000241738ea.rw-.sdmp, sora.arm7, 6341.1.0000000002bd700b.00000000241738ea.rw-.sdmp, sora.arm7, 6247.1.0000000002bd700b.00000000241738ea.rw-.sdmp Binary or memory string: &V!/etc/qemu-binfmt/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