Linux Analysis Report
rubix.arm7-20220514-0500

Overview

General Information

Sample Name: rubix.arm7-20220514-0500
Analysis ID: 626516
MD5: a4e3a4990f81cd4d51a5641cdc891e9f
SHA1: a1a56aa4bee86f64cb408ef12b1683873e0c1a72
SHA256: 8bf8a96bf64539b242fb0d3a0902b683b9c871a0d3fa64a9871f4b1503336121
Infos:

Detection

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

Signatures

Yara detected Mirai
Multi AV Scanner detection for submitted file
Contains symbols with names commonly found in malware
Sample contains symbols with suspicious names
Uses the "uname" system call to query kernel version information (possible evasion)
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Sample listens on a socket

Classification

AV Detection
barindex
Multi AV Scanner detection for submitted file
Source: rubix.arm7-20220514-0500 Virustotal: Detection: 50% Perma Link
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
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
Sample listens on a socket
Source: /tmp/rubix.arm7-20220514-0500 (PID: 6234) Socket: 127.0.0.1::9473 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: 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

System Summary
barindex
Contains symbols with names commonly found in malware
Source: ELF static info symbol of initial sample Name: attack.c
Source: ELF static info symbol of initial sample Name: attack_get_opt_int
Source: ELF static info symbol of initial sample Name: attack_get_opt_ip
Source: ELF static info symbol of initial sample Name: attack_gre_ip
Source: ELF static info symbol of initial sample Name: attack_init
Source: ELF static info symbol of initial sample Name: attack_method.c
Source: ELF static info symbol of initial sample Name: attack_method_nudp
Source: ELF static info symbol of initial sample Name: attack_method_std
Source: ELF static info symbol of initial sample Name: attack_method_stdhex
Source: ELF static info symbol of initial sample Name: attack_method_tcpack
Sample contains symbols with suspicious names
Source: ELF static info symbol of initial sample Name: hexPayload
Source: classification engine Classification label: mal60.troj.linARM7-20220514-0500@0/0@0/0
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/rubix.arm7-20220514-0500 (PID: 6234) Queries kernel information via 'uname': Jump to behavior
Source: rubix.arm7-20220514-0500, 6234.1.00000000b763ca26.0000000073530d75.rw-.sdmp Binary or memory string: Fx86_64/usr/bin/qemu-arm/tmp/rubix.arm7-20220514-0500SUDO_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/rubix.arm7-20220514-0500
Source: rubix.arm7-20220514-0500, 6234.1.00000000624627ff.0000000053a2855b.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: rubix.arm7-20220514-0500, 6234.1.00000000b763ca26.0000000073530d75.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: rubix.arm7-20220514-0500, 6234.1.00000000624627ff.0000000053a2855b.rw-.sdmp Binary or memory string: O&V!/etc/qemu-binfmt/arm
Source: rubix.arm7-20220514-0500, 6234.1.00000000b763ca26.0000000073530d75.rw-.sdmp Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

Stealing of Sensitive Information
barindex
Yara detected Mirai
Source: Yara match File source: rubix.arm7-20220514-0500, type: SAMPLE

Remote Access Functionality
barindex
Yara detected Mirai
Source: Yara match File source: rubix.arm7-20220514-0500, type: SAMPLE

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
91.189.91.43
 unknown United Kingdom
41231 CANONICAL-ASGB false
91.189.91.42
 unknown United Kingdom
41231 CANONICAL-ASGB false