Linux Analysis Report
most-x86.elf

Overview

General Information

Sample name: most-x86.elf
Analysis ID: 1447159
MD5: 1377bc582b1460fb6d7af9308d8c275f
SHA1: 57e736d17fea0ceff08a49e5c514b90f6da6e4a5
SHA256: 2d35d56fba74f7e9c8da180ccdcb479f291389827105b5c2295e466facf379f7
Tags: elf
Infos:

Detection

Mirai
Score: 96
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Detected Mirai
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Yara detected Mirai
Machine Learning detection for sample
Sample tries to kill multiple processes (SIGKILL)
Creates hidden files and/or directories
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
Sample tries to kill a process (SIGKILL)
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
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
barindex
Antivirus / Scanner detection for submitted sample
Source: most-x86.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: most-x86.elf ReversingLabs: Detection: 71%
Source: most-x86.elf Virustotal: Detection: 64% Perma Link
Machine Learning detection for sample
Source: most-x86.elf Joe Sandbox ML: detected
Found strings indicative of a multi-platform dropper
Source: most-x86.elf String: HTTP/1.1 200 OKmost-armmost-arm5most-arm6most-arm7most-mipsmost-mpslmost-x86_64most-sh4./dvr_gui./upnp_server./dvr_app/proc/proc/%s/cmdline./pkillkillallwgetbusyboxtopcurltftppgrepxargsawktoyboxKh

Networking
barindex
Snort IDS alert for network traffic
Source: Traffic Snort IDS: 2030490 ET TROJAN ELF/MooBot Mirai DDoS Variant CnC Checkin M1 (Group String Len 1) 192.168.2.23:35218 -> 103.151.239.121:2023
Source: Traffic Snort IDS: 2030489 ET TROJAN ELF/MooBot Mirai DDoS Variant Server Response 103.151.239.121:2023 -> 192.168.2.23:35218
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.23:35218 -> 103.151.239.121:2023
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Source: global traffic TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
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: 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: 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: 91.189.91.43
Source: global traffic DNS traffic detected: DNS query: net-killer.ooguy.com
Source: unknown Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 42836 -> 443

System Summary
barindex
Malicious sample detected (through community Yara rule)
Source: most-x86.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: most-x86.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_b14f4c5d Author: unknown
Source: most-x86.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_5f7b67b8 Author: unknown
Source: most-x86.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_88de437f Author: unknown
Source: most-x86.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: most-x86.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: most-x86.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Source: 6224.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 6224.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_b14f4c5d Author: unknown
Source: 6224.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_5f7b67b8 Author: unknown
Source: 6224.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_88de437f Author: unknown
Source: 6224.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: 6224.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: 6224.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Source: 6221.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 6221.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_b14f4c5d Author: unknown
Source: 6221.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_5f7b67b8 Author: unknown
Source: 6221.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_88de437f Author: unknown
Source: 6221.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: 6221.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: 6221.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Source: Process Memory Space: most-x86.elf PID: 6221, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: most-x86.elf PID: 6224, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Sample tries to kill multiple processes (SIGKILL)
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 904, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 910, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 912, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 918, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 936, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 1207, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 2074, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 6239, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 6240, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 6243, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 6246, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 6249, result: successful Jump to behavior
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: HTTP/1.1 200 OKmost-armmost-arm5most-arm6most-arm7most-mipsmost-mpslmost-x86_64most-sh4./dvr_gui./upnp_server./dvr_app/proc/proc/%s/cmdline./pkillkillallwgetbusyboxtopcurltftppgrepxargsawktoyboxKh
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Sample tries to kill a process (SIGKILL)
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 904, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 910, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 912, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 918, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 936, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 1207, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 2074, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 6239, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 6240, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 6243, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 6246, result: successful Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) SIGKILL sent: pid: 6249, result: successful Jump to behavior
Yara signature match
Source: most-x86.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: most-x86.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_b14f4c5d os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = a70d052918dd2fbc66db241da6438015130f0fb6929229bfe573546fe98da817, id = b14f4c5d-054f-46e6-9fa8-3588f1ef68b7, last_modified = 2021-09-16
Source: most-x86.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_5f7b67b8 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 6cb5fb0b7c132e9c11ac72da43278025b60810ea3733c9c6d6ca966163185940, id = 5f7b67b8-3d7b-48a4-8f03-b6f2c92be92e, last_modified = 2021-09-16
Source: most-x86.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_88de437f reference_sample = 8dc745a6de6f319cd6021c3e147597315cc1be02099d78fc8aae94de0e1e4bc6, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = c19eb595c2b444a809bef8500c20342c9f46694d3018e268833f9b884133a1ea, id = 88de437f-9c98-4e1d-96c0-7b433c99886a, last_modified = 2021-09-16
Source: most-x86.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_389ee3e9 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 59f2359dc1f41d385d639d157b4cd9fc73d76d8abb7cc09d47632bb4c9a39e6e, id = 389ee3e9-70c1-4c93-a999-292cf6ff1652, last_modified = 2022-01-26
Source: most-x86.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_cc93863b reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f3ecd30f0b511a8e92cfa642409d559e7612c3f57a1659ca46c77aca809a00ac, id = cc93863b-1050-40ba-9d02-5ec9ce6a3a28, last_modified = 2022-01-26
Source: most-x86.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_8aa7b5d3 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 02a2c18c362df4b1fceb33f3b605586514ba9a00c7afedf71c04fa54d8146444, id = 8aa7b5d3-e1eb-4b55-b36a-0d3a242c06e9, last_modified = 2022-01-26
Source: 6224.1.0000000008048000.000000000805b000.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: 6224.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_b14f4c5d os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = a70d052918dd2fbc66db241da6438015130f0fb6929229bfe573546fe98da817, id = b14f4c5d-054f-46e6-9fa8-3588f1ef68b7, last_modified = 2021-09-16
Source: 6224.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_5f7b67b8 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 6cb5fb0b7c132e9c11ac72da43278025b60810ea3733c9c6d6ca966163185940, id = 5f7b67b8-3d7b-48a4-8f03-b6f2c92be92e, last_modified = 2021-09-16
Source: 6224.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_88de437f reference_sample = 8dc745a6de6f319cd6021c3e147597315cc1be02099d78fc8aae94de0e1e4bc6, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = c19eb595c2b444a809bef8500c20342c9f46694d3018e268833f9b884133a1ea, id = 88de437f-9c98-4e1d-96c0-7b433c99886a, last_modified = 2021-09-16
Source: 6224.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_389ee3e9 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 59f2359dc1f41d385d639d157b4cd9fc73d76d8abb7cc09d47632bb4c9a39e6e, id = 389ee3e9-70c1-4c93-a999-292cf6ff1652, last_modified = 2022-01-26
Source: 6224.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_cc93863b reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f3ecd30f0b511a8e92cfa642409d559e7612c3f57a1659ca46c77aca809a00ac, id = cc93863b-1050-40ba-9d02-5ec9ce6a3a28, last_modified = 2022-01-26
Source: 6224.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_8aa7b5d3 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 02a2c18c362df4b1fceb33f3b605586514ba9a00c7afedf71c04fa54d8146444, id = 8aa7b5d3-e1eb-4b55-b36a-0d3a242c06e9, last_modified = 2022-01-26
Source: 6221.1.0000000008048000.000000000805b000.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: 6221.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_b14f4c5d os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = a70d052918dd2fbc66db241da6438015130f0fb6929229bfe573546fe98da817, id = b14f4c5d-054f-46e6-9fa8-3588f1ef68b7, last_modified = 2021-09-16
Source: 6221.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_5f7b67b8 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 6cb5fb0b7c132e9c11ac72da43278025b60810ea3733c9c6d6ca966163185940, id = 5f7b67b8-3d7b-48a4-8f03-b6f2c92be92e, last_modified = 2021-09-16
Source: 6221.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_88de437f reference_sample = 8dc745a6de6f319cd6021c3e147597315cc1be02099d78fc8aae94de0e1e4bc6, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = c19eb595c2b444a809bef8500c20342c9f46694d3018e268833f9b884133a1ea, id = 88de437f-9c98-4e1d-96c0-7b433c99886a, last_modified = 2021-09-16
Source: 6221.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_389ee3e9 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 59f2359dc1f41d385d639d157b4cd9fc73d76d8abb7cc09d47632bb4c9a39e6e, id = 389ee3e9-70c1-4c93-a999-292cf6ff1652, last_modified = 2022-01-26
Source: 6221.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_cc93863b reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f3ecd30f0b511a8e92cfa642409d559e7612c3f57a1659ca46c77aca809a00ac, id = cc93863b-1050-40ba-9d02-5ec9ce6a3a28, last_modified = 2022-01-26
Source: 6221.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_8aa7b5d3 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 02a2c18c362df4b1fceb33f3b605586514ba9a00c7afedf71c04fa54d8146444, id = 8aa7b5d3-e1eb-4b55-b36a-0d3a242c06e9, last_modified = 2022-01-26
Source: Process Memory Space: most-x86.elf PID: 6221, 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: most-x86.elf PID: 6224, 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: mal96.spre.troj.linELF@0/0@1/0
Creates hidden files and/or directories
Source: /usr/bin/xfdesktop (PID: 6240) Directory: /home/saturnino/.Xdefaults-galassia Jump to behavior
Source: /usr/bin/xfdesktop (PID: 6243) Directory: /home/saturnino/.Xdefaults-galassia Jump to behavior
Source: /usr/bin/xfdesktop (PID: 6246) Directory: /home/saturnino/.Xdefaults-galassia Jump to behavior
Source: /usr/bin/xfdesktop (PID: 6249) Directory: /home/saturnino/.Xdefaults-galassia Jump to behavior
Enumerates processes within the "proc" file system
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/6230/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/6232/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/6231/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/6234/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/6233/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/6236/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/6235/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/1582/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/3088/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/230/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/110/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/231/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/111/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/232/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/1579/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/112/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/233/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/1699/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/113/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/234/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/1335/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/1698/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/114/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/235/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/1334/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/1576/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/2302/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/115/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/236/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/116/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/237/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/117/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/118/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/910/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/6227/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/119/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/6226/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/912/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/6229/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/6228/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/10/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/2307/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/11/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/918/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/12/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/6240/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/13/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/6243/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/14/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/15/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/16/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/17/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/18/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/6246/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/1594/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/120/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/121/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/1349/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/1/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/122/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/243/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/123/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/2/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/124/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/3/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/4/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/125/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/126/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/1344/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/1465/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/1586/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/127/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/6/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/248/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/128/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/249/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/1463/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/800/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/6238/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/9/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/801/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/6237/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/6239/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/20/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/21/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/1900/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/22/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/23/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/24/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/25/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/26/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/27/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/28/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/29/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/491/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/250/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/130/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/251/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/252/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/132/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/253/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/254/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/255/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/256/cmdline Jump to behavior
Source: /tmp/most-x86.elf (PID: 6223) File opened: /proc/1599/cmdline Jump to behavior
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /usr/bin/xfdesktop (PID: 6240) Queries kernel information via 'uname': Jump to behavior
Source: /usr/bin/xfdesktop (PID: 6243) Queries kernel information via 'uname': Jump to behavior
Source: /usr/bin/xfdesktop (PID: 6246) Queries kernel information via 'uname': Jump to behavior
Source: /usr/bin/xfdesktop (PID: 6249) Queries kernel information via 'uname': Jump to behavior

Stealing of Sensitive Information
barindex
Yara detected Mirai
Source: Yara match File source: most-x86.elf, type: SAMPLE
Source: Yara match File source: 6224.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 6221.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: most-x86.elf PID: 6221, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: most-x86.elf PID: 6224, type: MEMORYSTR

Remote Access Functionality
barindex
Detected Mirai
Source: Traffic Snort IDS: ET TROJAN ELF/MooBot Mirai DDoS Variant CnC Checkin M1 (Group String Len 1)
Source: Traffic Snort IDS: ET TROJAN ELF/MooBot Mirai DDoS Variant Server Response
Source: Traffic Snort IDS: ET TROJAN ELF/MooBot Mirai DDoS Variant Server Response
Source: Traffic Snort IDS: ET TROJAN ELF/MooBot Mirai DDoS Variant Server Response
Source: Traffic Snort IDS: ET TROJAN ELF/MooBot Mirai DDoS Variant Server Response
Source: Traffic Snort IDS: ET TROJAN ELF/MooBot Mirai DDoS Variant Server Response
Source: Traffic Snort IDS: ET TROJAN ELF/MooBot Mirai DDoS Variant Server Response
Source: Traffic Snort IDS: ET TROJAN ELF/MooBot Mirai DDoS Variant Server Response
Yara detected Mirai
Source: Yara match File source: most-x86.elf, type: SAMPLE
Source: Yara match File source: 6224.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 6221.1.0000000008048000.000000000805b000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: most-x86.elf PID: 6221, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: most-x86.elf PID: 6224, type: MEMORYSTR
windows-stand
  • 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
103.151.239.121
 net-killer.ooguy.com unknown
38245 VIETBRANDS-AS-VNVIETBRANDSCOMPANYLIMITEDVN true
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

Contacted Domains

Name IP Active
net-killer.ooguy.com 103.151.239.121 true