Linux Analysis Report
Aqua.arm7.elf

Overview

General Information

Sample name: Aqua.arm7.elf
Analysis ID: 1580699
MD5: 707f6a09c63e7c2ea16645b991beece2
SHA1: 9d84b9d10704c06098b4eaec5f96e34d4ba47635
SHA256: 87f1ad61c3f9896c05477b1598f701f33ea9017b0691a19d6ac152b1c4cecf0d
Tags: elfuser-abuse_ch
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
Sample and/or dropped files contains symbols with suspicious names
Tries to resolve domain names, but no domain seems valid (expired dropper behavior)
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: Aqua.arm7.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: Aqua.arm7.elf Virustotal: Detection: 31% Perma Link
Source: Aqua.arm7.elf ReversingLabs: Detection: 36%
Tries to resolve domain names, but no domain seems valid (expired dropper behavior)
Source: unknown DNS traffic detected: query: 45.148.10.84 replaycode: Name error (3)
Source: global traffic DNS traffic detected: DNS query: 45.148.10.84

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.c
Source: ELF static info symbol of initial sample Name: attack_gre_eth
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_parse
Source: ELF static info symbol of initial sample Name: attack_start
Source: ELF static info symbol of initial sample Name: attack_std
Sample and/or dropped files contains symbols with suspicious names
Source: Aqua.arm7.elf ELF static info symbol of initial sample: __gnu_unwind_execute
Source: Aqua.arm7.elf ELF static info symbol of initial sample: hide_process
Source: classification engine Classification label: mal72.troj.evad.linELF@0/1@100/0

Hooking and other Techniques for Hiding and Protection
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Sample deletes itself
Source: /tmp/Aqua.arm7.elf (PID: 5830) File: /tmp/Aqua.arm7.elf Jump to behavior
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/Aqua.arm7.elf (PID: 5828) Queries kernel information via 'uname': Jump to behavior
Source: Aqua.arm7.elf, 5828.1.000055865b46c000.000055865b5bd000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/arm
Source: Aqua.arm7.elf, 5828.1.000055865b46c000.000055865b5bd000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: Aqua.arm7.elf, 5828.1.00007ffef798d000.00007ffef79ae000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: Aqua.arm7.elf, 5828.1.00007ffef798d000.00007ffef79ae000.rw-.sdmp Binary or memory string: U/tmp/qemu-open.f7nSNS:
Source: Aqua.arm7.elf, 5828.1.00007ffef798d000.00007ffef79ae000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/Aqua.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/Aqua.arm7.elf
Source: Aqua.arm7.elf, 5828.1.00007ffef798d000.00007ffef79ae000.rw-.sdmp Binary or memory string: /tmp/qemu-open.f7nSNS

Stealing of Sensitive Information
barindex
Yara detected Mirai
Source: Yara match File source: Aqua.arm7.elf, type: SAMPLE

Remote Access Functionality
barindex
Yara detected Mirai
Source: Yara match File source: Aqua.arm7.elf, type: SAMPLE

No Screenshots

⊘No contacted IP infos

Contacted Domains

Name IP Active
45.148.10.84 unknown unknown