Linux Analysis Report
tdL6G32dVm.elf

Overview

General Information

Sample name: tdL6G32dVm.elf
renamed because original name is a hash value
Original sample name: bc33544302cd665667c46ec4b7d3b1af.elf
Analysis ID: 1431636
MD5: bc33544302cd665667c46ec4b7d3b1af
SHA1: c5ba53f5a815bac10dad11a05a51a5cbaf75fa62
SHA256: c8e885ea8c1018f4fbcb95a37149caa55a85bd2e06a77a93cbb88ac090ae5217
Tags: 32elfmipsmirai
Infos:

Detection

Mirai, Okiru
Score: 80
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Yara detected Okiru
Detected TCP or UDP traffic on non-standard ports
Enumerates processes within the "proc" file system
Found strings indicative of a multi-platform dropper
Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable
Sample has stripped symbol table
Uses the "uname" system call to query kernel version information (possible evasion)
Yara signature match

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: tdL6G32dVm.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: tdL6G32dVm.elf ReversingLabs: Detection: 59%
Source: tdL6G32dVm.elf Virustotal: Detection: 57% Perma Link
Found strings indicative of a multi-platform dropper
Source: tdL6G32dVm.elf String: HTTP/1.1 200 OKbot.armbot.arm5bot.arm6bot.arm7bot.mipsbot.mpslbot.x86_64bot.sh4/proc/proc/%d/cmdlinernetstatwgetcurlbusybox/bin/busybox/proc//proc/%s/exe/proc/self/exevar/Challengeapp/hi3511gmDVRiboxusr/dvr_main _8182T_1108mnt/mtd/app/guivar/Kylinl0 c/udevdanko-app/ankosample _8182T_1104var/tmp/soniahicorestm_hi3511_dvr/usr/lib/systemd/systemd/usr/libexec/openssh/sftp-serverusr/shellmnt/sys/bin/boot/media/srv/var/run/sbin/lib/etc/dev/home/Davincitelnetsshwatchdog/var/spool/var/Sofiasshd/usr/compress/bin//compress/bin/compress/usr/bashhttpdtelnetddropbearropbearencodersystem/root/dvr_gui//root/dvr_app//anko-app//opt/abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ3f
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.13:58944 -> 103.97.132.194:2509
Source: global traffic DNS traffic detected: DNS query: eclp8oz0m8mxouv96hc9p7k2btydt3iv.click

System Summary
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Malicious sample detected (through community Yara rule)
Source: tdL6G32dVm.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5464.1.00007f50f8400000.00007f50f8425000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: tdL6G32dVm.elf PID: 5464, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable
Source: Initial sample String containing 'busybox' found: busybox
Source: Initial sample String containing 'busybox' found: /bin/busybox
Source: Initial sample String containing 'busybox' found: HTTP/1.1 200 OKbot.armbot.arm5bot.arm6bot.arm7bot.mipsbot.mpslbot.x86_64bot.sh4/proc/proc/%d/cmdlinernetstatwgetcurlbusybox/bin/busybox/proc//proc/%s/exe/proc/self/exevar/Challengeapp/hi3511gmDVRiboxusr/dvr_main _8182T_1108mnt/mtd/app/guivar/Kylinl0 c/udevdanko-app/ankosample _8182T_1104var/tmp/soniahicorestm_hi3511_dvr/usr/lib/systemd/systemd/usr/libexec/openssh/sftp-serverusr/shellmnt/sys/bin/boot/media/srv/var/run/sbin/lib/etc/dev/home/Davincitelnetsshwatchdog/var/spool/var/Sofiasshd/usr/compress/bin//compress/bin/compress/usr/bashhttpdtelnetddropbearropbearencodersystem/root/dvr_gui//root/dvr_app//anko-app//opt/abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ3f
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Yara signature match
Source: tdL6G32dVm.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: 5464.1.00007f50f8400000.00007f50f8425000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: Process Memory Space: tdL6G32dVm.elf PID: 5464, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: classification engine Classification label: mal80.troj.linELF@0/1025@9/0
Enumerates processes within the "proc" file system
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/230/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/110/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/231/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/111/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/232/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/112/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/233/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/113/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/234/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/114/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/235/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/115/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/236/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/116/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/237/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/117/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/238/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/118/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/239/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/3630/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/119/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/914/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/10/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/917/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/11/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/12/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/13/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/14/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/15/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/16/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/17/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/18/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/3651/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/19/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/240/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/3095/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/120/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/241/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/121/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/242/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/1/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/122/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/243/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/2/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/123/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/244/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/3/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/124/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/245/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/1588/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/125/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/4/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/246/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/126/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/5/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/247/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/127/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/6/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/248/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/128/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/7/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/249/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/129/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/8/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/800/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/9/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/1906/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/802/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/803/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/20/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/21/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/22/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/23/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/24/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/25/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/26/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/27/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/28/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/29/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/3420/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/1482/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/490/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/1480/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/250/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/371/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/130/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/251/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/131/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/252/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/132/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/253/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/254/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/1238/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/134/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/255/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/256/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/257/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/378/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/3413/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/258/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/259/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/1475/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/936/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/30/cmdline Jump to behavior
Source: /tmp/tdL6G32dVm.elf (PID: 5468) File opened: /proc/816/cmdline Jump to behavior
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/tdL6G32dVm.elf (PID: 5464) Queries kernel information via 'uname': Jump to behavior
Source: tdL6G32dVm.elf, 5464.1.00007fff94651000.00007fff94672000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-mips/tmp/tdL6G32dVm.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/tdL6G32dVm.elf
Source: tdL6G32dVm.elf, 5464.1.0000563e8a7e1000.0000563e8a868000.rw-.sdmp Binary or memory string: >V!/etc/qemu-binfmt/mips
Source: tdL6G32dVm.elf, 5464.1.0000563e8a7e1000.0000563e8a868000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/mips
Source: tdL6G32dVm.elf, 5464.1.00007fff94651000.00007fff94672000.rw-.sdmp Binary or memory string: /usr/bin/qemu-mips

Stealing of Sensitive Information
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Yara detected Mirai
Source: Yara match File source: tdL6G32dVm.elf, type: SAMPLE
Source: Yara match File source: 5464.1.00007f50f8400000.00007f50f8425000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: tdL6G32dVm.elf PID: 5464, type: MEMORYSTR
Yara detected Okiru
Source: Yara match File source: tdL6G32dVm.elf, type: SAMPLE
Source: Yara match File source: 5464.1.00007f50f8400000.00007f50f8425000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: tdL6G32dVm.elf PID: 5464, type: MEMORYSTR

Remote Access Functionality
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Yara detected Mirai
Source: Yara match File source: tdL6G32dVm.elf, type: SAMPLE
Source: Yara match File source: 5464.1.00007f50f8400000.00007f50f8425000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: tdL6G32dVm.elf PID: 5464, type: MEMORYSTR
Yara detected Okiru
Source: Yara match File source: tdL6G32dVm.elf, type: SAMPLE
Source: Yara match File source: 5464.1.00007f50f8400000.00007f50f8425000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: tdL6G32dVm.elf PID: 5464, type: MEMORYSTR

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
103.97.132.194
 eclp8oz0m8mxouv96hc9p7k2btydt3iv.click Viet Nam
55933 CLOUDIE-AS-APCloudieLimitedHK false

Contacted Domains

Name IP Active
eclp8oz0m8mxouv96hc9p7k2btydt3iv.click 103.97.132.194 true