Linux Analysis Report
gIZ1HFds2y.elf

Overview

General Information

Sample name: gIZ1HFds2y.elf
renamed because original name is a hash value
Original sample name: 8fa434253666534dcf9074ca3d981611.elf
Analysis ID: 1532250
MD5: 8fa434253666534dcf9074ca3d981611
SHA1: 9b8585f8facf7186155a20412bcc7ab7554f96ac
SHA256: 6a64c43559802cef9f4cab56e8d2f5e93b748ce154dc26cd16a916dfd791d7be
Tags: 32armelfmirai
Infos:

Detection

Mirai
Score: 72
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Yara detected Mirai
Contains symbols with names commonly found in malware
Sample deletes itself
Detected TCP or UDP traffic on non-standard ports
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)

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
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Antivirus / Scanner detection for submitted sample
Source: gIZ1HFds2y.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: gIZ1HFds2y.elf ReversingLabs: Detection: 57%
Source: gIZ1HFds2y.elf Virustotal: Detection: 43% Perma Link
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.13:45032 -> 93.123.85.140:31337
Sample listens on a socket
Source: /tmp/gIZ1HFds2y.elf (PID: 5433) Socket: 127.0.0.1:21762 Jump to behavior
Source: global traffic DNS traffic detected: DNS query: drumev.eu

System Summary
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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_http
Source: ELF static info symbol of initial sample Name: attack_method_tcpack
Source: ELF static info symbol of initial sample Name: attack_method_tcpsyn
Source: ELF static info symbol of initial sample Name: attack_method_udpgeneric
Source: ELF static info symbol of initial sample Name: attack_method_udpplain
Sample and/or dropped files contains symbols with suspicious names
Source: gIZ1HFds2y.elf ELF static info symbol of initial sample: __gnu_unwind_execute
Source: classification engine Classification label: mal72.troj.evad.linELF@0/0@49/0

Hooking and other Techniques for Hiding and Protection
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Sample deletes itself
Source: /tmp/gIZ1HFds2y.elf (PID: 5433) File: /tmp/gIZ1HFds2y.elf Jump to behavior
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/gIZ1HFds2y.elf (PID: 5433) Queries kernel information via 'uname': Jump to behavior
Source: gIZ1HFds2y.elf, 5433.1.0000558ca217a000.0000558ca22ca000.rw-.sdmp, gIZ1HFds2y.elf, 5435.1.0000558ca217a000.0000558ca22a8000.rw-.sdmp, gIZ1HFds2y.elf, 5439.1.0000558ca217a000.0000558ca22a8000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/arm
Source: gIZ1HFds2y.elf, 5433.1.00007fff0bb98000.00007fff0bbb9000.rw-.sdmp, gIZ1HFds2y.elf, 5435.1.00007fff0bb98000.00007fff0bbb9000.rw-.sdmp, gIZ1HFds2y.elf, 5439.1.00007fff0bb98000.00007fff0bbb9000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/gIZ1HFds2y.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/gIZ1HFds2y.elf
Source: gIZ1HFds2y.elf, 5433.1.0000558ca217a000.0000558ca22ca000.rw-.sdmp, gIZ1HFds2y.elf, 5435.1.0000558ca217a000.0000558ca22a8000.rw-.sdmp, gIZ1HFds2y.elf, 5439.1.0000558ca217a000.0000558ca22a8000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: gIZ1HFds2y.elf, 5433.1.00007fff0bb98000.00007fff0bbb9000.rw-.sdmp, gIZ1HFds2y.elf, 5435.1.00007fff0bb98000.00007fff0bbb9000.rw-.sdmp, gIZ1HFds2y.elf, 5439.1.00007fff0bb98000.00007fff0bbb9000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm

Stealing of Sensitive Information
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Yara detected Mirai
Source: Yara match File source: gIZ1HFds2y.elf, type: SAMPLE

Remote Access Functionality
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Yara detected Mirai
Source: Yara match File source: gIZ1HFds2y.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
93.123.85.140
 drumev.eu Bulgaria
43561 NET1-ASBG false

Contacted Domains

Name IP Active
drumev.eu 93.123.85.140 true