Linux Analysis Report
c0r0n4x.arm7.elf

Overview

General Information

Sample name: c0r0n4x.arm7.elf
Analysis ID: 1541840
MD5: 12ab7e12a7a0083e820eab357047e6e6
SHA1: 96f60bcb131bd782da18c0adc4abc244b6b14a7b
SHA256: 18c3d744766f93b370579e40ce952cf6c018fe6e4f54edec191852be1746e29b
Tags: elfuser-abuse_ch
Infos:

Detection

Mirai
Score: 68
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Contains symbols with names commonly found in malware
Executes the "rm" command used to delete files or directories
Sample and/or dropped files contains symbols with suspicious names
Sample listens on a socket
Uses the "uname" system call to query kernel version information (possible evasion)
Yara detected Mirai

Classification

Name Description Attribution Blogpost URLs Link
Mirai Mirai is one of the first significant botnets targeting exposed networking devices running Linux. Found in August 2016 by MalwareMustDie, its name means "future" in Japanese. Nowadays it targets a wide range of networked embedded devices such as IP cameras, home routers (many vendors involved), and other IoT devices. Since the source code was published on "Hack Forums" many variants of the Mirai family appeared, infecting mostly home networks all around the world. No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/elf.mirai

AV Detection
barindex
Antivirus / Scanner detection for submitted sample
Source: c0r0n4x.arm7.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: c0r0n4x.arm7.elf ReversingLabs: Detection: 73%
Sample listens on a socket
Source: /tmp/c0r0n4x.arm7.elf (PID: 6213) Socket: 127.0.0.1:38273 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: 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: 54.171.230.55
Source: unknown TCP traffic detected without corresponding DNS query: 54.171.230.55
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 Network traffic detected: HTTP traffic on port 443 -> 33608
Source: unknown Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 33608 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 42836 -> 443

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_get_opt_str
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_asyn
Source: ELF static info symbol of initial sample Name: attack_method_greeth
Source: ELF static info symbol of initial sample Name: attack_method_greip
Source: ELF static info symbol of initial sample Name: attack_method_std
Sample and/or dropped files contains symbols with suspicious names
Source: c0r0n4x.arm7.elf ELF static info symbol of initial sample: __gnu_unwind_execute
Source: c0r0n4x.arm7.elf ELF static info symbol of initial sample: scanner.c
Source: c0r0n4x.arm7.elf ELF static info symbol of initial sample: scanner_init
Source: c0r0n4x.arm7.elf ELF static info symbol of initial sample: scanner_pid
Source: c0r0n4x.arm7.elf ELF static info symbol of initial sample: scanner_rawpkt
Source: classification engine Classification label: mal68.troj.linELF@0/0@0/0
Executes the "rm" command used to delete files or directories
Source: /usr/bin/dash (PID: 6266) Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.asbAjmrCk1 /tmp/tmp.z6UeEg3SX7 /tmp/tmp.BaMNvxBmoN Jump to behavior
Source: /usr/bin/dash (PID: 6267) Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.asbAjmrCk1 /tmp/tmp.z6UeEg3SX7 /tmp/tmp.BaMNvxBmoN Jump to behavior
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/c0r0n4x.arm7.elf (PID: 6213) Queries kernel information via 'uname': Jump to behavior
Source: c0r0n4x.arm7.elf, 6213.1.0000557371772000.00005573718a0000.rw-.sdmp Binary or memory string: xqsU!/etc/qemu-binfmt/arm
Source: c0r0n4x.arm7.elf, 6213.1.00007ffeb5999000.00007ffeb59ba000.rw-.sdmp Binary or memory string: tx86_64/usr/bin/qemu-arm/tmp/c0r0n4x.arm7.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/c0r0n4x.arm7.elf
Source: c0r0n4x.arm7.elf, 6213.1.0000557371772000.00005573718a0000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: c0r0n4x.arm7.elf, 6213.1.00007ffeb5999000.00007ffeb59ba000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: c0r0n4x.arm7.elf, 6213.1.00007ffeb5999000.00007ffeb59ba000.rw-.sdmp Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Yara detected Mirai
Source: Yara match File source: c0r0n4x.arm7.elf, type: SAMPLE
Yara detected Mirai
Source: Yara match File source: c0r0n4x.arm7.elf, 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
54.171.230.55
 unknown United States
16509 AMAZON-02US 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