Linux Analysis Report
yB9hLLnhbx.elf

Overview

General Information

Sample Name: yB9hLLnhbx.elf
Analysis ID: 756320
MD5: f91d9aa9e9d29ae67a5d1d504050c519
SHA1: aad17596d13e5d9439141165e968f9001af29407
SHA256: b49d71d61bc5f0871a7fa5f4cb6816d9a58633440428a3ddec13346fd4386185
Tags: 32elfgafgytmips
Infos:

Detection

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

Signatures

Malicious sample detected (through community Yara rule)
Antivirus / Scanner detection for submitted sample
Yara detected Mirai
Multi AV Scanner detection for submitted file
Contains symbols with names commonly found in malware
Opens /proc/net/* files useful for finding connected devices and routers
Yara signature match
Sample contains strings that are user agent strings indicative of HTTP manipulation
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)
Detected TCP or UDP traffic on non-standard ports

Classification

AV Detection

barindex
Source: yB9hLLnhbx.elf Avira: detected
Source: yB9hLLnhbx.elf ReversingLabs: Detection: 61%
Source: yB9hLLnhbx.elf Virustotal: Detection: 63% Perma Link

Spreading

barindex
Source: /tmp/yB9hLLnhbx.elf (PID: 6229) Opens: /proc/net/route Jump to 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
Source: global traffic TCP traffic: 192.168.2.23:38500 -> 47.87.197.232:576
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: 47.87.197.232
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: 47.87.197.232
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: 47.87.197.232
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 47.87.197.232
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown TCP traffic detected without corresponding DNS query: 47.87.197.232
Source: unknown TCP traffic detected without corresponding DNS query: 47.87.197.232
Source: unknown TCP traffic detected without corresponding DNS query: 47.87.197.232
Source: unknown TCP traffic detected without corresponding DNS query: 47.87.197.232
Source: unknown TCP traffic detected without corresponding DNS query: 47.87.197.232
Source: unknown TCP traffic detected without corresponding DNS query: 47.87.197.232
Source: unknown TCP traffic detected without corresponding DNS query: 47.87.197.232

System Summary

barindex
Source: yB9hLLnhbx.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 6231.1.00007fbb84400000.00007fbb8441e000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 6232.1.00007fbb84400000.00007fbb8441e000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 6229.1.00007fbb84400000.00007fbb8441e000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: yB9hLLnhbx.elf PID: 6229, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: yB9hLLnhbx.elf PID: 6231, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: yB9hLLnhbx.elf PID: 6232, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: ELF static info symbol of initial sample Name: vseattack
Source: yB9hLLnhbx.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: 6231.1.00007fbb84400000.00007fbb8441e000.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: 6232.1.00007fbb84400000.00007fbb8441e000.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: 6229.1.00007fbb84400000.00007fbb8441e000.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: yB9hLLnhbx.elf PID: 6229, 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: Process Memory Space: yB9hLLnhbx.elf PID: 6231, 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: Process Memory Space: yB9hLLnhbx.elf PID: 6232, 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.spre.troj.linELF@0/1@0/0
Source: yB9hLLnhbx.elf ELF static info symbol of initial sample: libc/string/mips/memcpy.S
Source: yB9hLLnhbx.elf ELF static info symbol of initial sample: libc/string/mips/memset.S
Source: yB9hLLnhbx.elf ELF static info symbol of initial sample: libc/sysdeps/linux/mips/crt1.S
Source: yB9hLLnhbx.elf ELF static info symbol of initial sample: libc/sysdeps/linux/mips/crti.S
Source: yB9hLLnhbx.elf ELF static info symbol of initial sample: libc/sysdeps/linux/mips/crtn.S
Source: yB9hLLnhbx.elf ELF static info symbol of initial sample: libc/sysdeps/linux/mips/pipe.S
Source: /tmp/yB9hLLnhbx.elf (PID: 6229) Queries kernel information via 'uname': Jump to behavior
Source: yB9hLLnhbx.elf, 6229.1.00007ffcdd214000.00007ffcdd235000.rw-.sdmp Binary or memory string: U/tmp/qemu-open.LkIBrb\
Source: yB9hLLnhbx.elf, 6229.1.000055a0aa12d000.000055a0aa1b4000.rw-.sdmp, yB9hLLnhbx.elf, 6231.1.000055a0aa12d000.000055a0aa1b4000.rw-.sdmp, yB9hLLnhbx.elf, 6232.1.000055a0aa12d000.000055a0aa1b4000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/mips
Source: yB9hLLnhbx.elf, 6229.1.000055a0aa12d000.000055a0aa1b4000.rw-.sdmp, yB9hLLnhbx.elf, 6231.1.000055a0aa12d000.000055a0aa1b4000.rw-.sdmp, yB9hLLnhbx.elf, 6232.1.000055a0aa12d000.000055a0aa1b4000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/mips
Source: yB9hLLnhbx.elf, 6229.1.00007ffcdd214000.00007ffcdd235000.rw-.sdmp, yB9hLLnhbx.elf, 6231.1.00007ffcdd214000.00007ffcdd235000.rw-.sdmp, yB9hLLnhbx.elf, 6232.1.00007ffcdd214000.00007ffcdd235000.rw-.sdmp Binary or memory string: /usr/bin/qemu-mips
Source: yB9hLLnhbx.elf, 6229.1.00007ffcdd214000.00007ffcdd235000.rw-.sdmp, yB9hLLnhbx.elf, 6231.1.00007ffcdd214000.00007ffcdd235000.rw-.sdmp, yB9hLLnhbx.elf, 6232.1.00007ffcdd214000.00007ffcdd235000.rw-.sdmp Binary or memory string: Jx86_64/usr/bin/qemu-mips/tmp/yB9hLLnhbx.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/yB9hLLnhbx.elf
Source: yB9hLLnhbx.elf, 6229.1.00007ffcdd214000.00007ffcdd235000.rw-.sdmp Binary or memory string: /tmp/qemu-open.LkIBrb

Stealing of Sensitive Information

barindex
Source: Yara match File source: yB9hLLnhbx.elf, type: SAMPLE
Source: Yara match File source: 6231.1.00007fbb84400000.00007fbb8441e000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 6232.1.00007fbb84400000.00007fbb8441e000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 6229.1.00007fbb84400000.00007fbb8441e000.r-x.sdmp, type: MEMORY
Source: Initial sample User agent string found: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; pl) Opera 11.00
Source: Initial sample User agent string found: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; en) Opera 11.00
Source: Initial sample User agent string found: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; ja) Opera 11.00
Source: Initial sample User agent string found: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; de) Opera 11.01
Source: Initial sample User agent string found: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; fr) Opera 11.00
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.79 Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0
Source: Initial sample User agent string found: Mozilla/5.0 (iPhone; CPU iPhone OS 8_4 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12H143 Safari/600.1.4
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:41.0) Gecko/20100101 Firefox/41.0
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11) AppleWebKit/601.1.56 (KHTML, like Gecko) Version/9.0 Safari/601.1.56
Source: Initial sample User agent string found: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_1) AppleWebKit/601.2.7 (KHTML, like Gecko) Version/9.0.1 Safari/601.2.7
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko
Source: Initial sample User agent string found: Opera/9.80 (Windows NT 5.2; U; ru) Presto/2.5.22 Version/10.51
Source: Initial sample User agent string found: Opera/9.80 (X11; Linux i686; Ubuntu/14.10) Presto/2.12.388 Version/12.16
Source: Initial sample User agent string found: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_3) AppleWebKit/537.75.14 (KHTML, like Gecko) Version/7.0.3 Safari/7046A194A
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.94 Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (Linux; Android 4.4.3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.89 Mobile Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (Linux; Android 4.4.3; HTC_0PCV2 Build/KTU84L) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/33.0.0.0 Mobile Safari/537.36
Source: Initial sample User agent string found: Mozilla/4.0 (compatible; MSIE 8.0; X11; Linux x86_64; pl) Opera 11.00
Source: Initial sample User agent string found: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:25.0) Gecko/20100101 Firefox/25.0
Source: Initial sample User agent string found: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:21.0) Gecko/20100101 Firefox/21.0
Source: Initial sample User agent string found: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:24.0) Gecko/20100101 Firefox/24.0
Source: Initial sample User agent string found: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10; rv:33.0) Gecko/20100101 Firefox/33.0

Remote Access Functionality

barindex
Source: Yara match File source: yB9hLLnhbx.elf, type: SAMPLE
Source: Yara match File source: 6231.1.00007fbb84400000.00007fbb8441e000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 6232.1.00007fbb84400000.00007fbb8441e000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 6229.1.00007fbb84400000.00007fbb8441e000.r-x.sdmp, type: MEMORY
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs