Linux Analysis Report
na.elf

Overview

General Information

Sample name: na.elf
Analysis ID: 1528836
MD5: 8ef966a2f485a72bc42746ae4745cefa
SHA1: 1ce26f48ab05a314fb9ddb9818c634e6617ca4a7
SHA256: 56ccebabf40f7191e11afdf659584d9c15bb12070ec9e01293cabc78d78cf0c2
Tags: elfMiraiuser-abuse_ch
Infos:

Detection

Mirai
Score: 76
Range: 0 - 100
Whitelisted: false

Signatures

Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Machine Learning detection for sample
Sample deletes itself
Sample is packed with UPX
Detected TCP or UDP traffic on non-standard ports
ELF contains segments with high entropy indicating compressed/encrypted content
Enumerates processes within the "proc" file system
Executes commands using a shell command-line interpreter
Executes the "ps" command used to list the status of processes
Reads CPU information from /sys indicative of miner or evasive malware
Reads system information from the proc file system
Sample contains only a LOAD segment without any section mappings
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
Multi AV Scanner detection for submitted file
Source: na.elf ReversingLabs: Detection: 44%
Source: na.elf Virustotal: Detection: 46% Perma Link
Machine Learning detection for sample
Source: na.elf Joe Sandbox ML: detected
Reads CPU information from /sys indicative of miner or evasive malware
Source: /usr/bin/ps (PID: 5724) Reads CPU info from /sys: /sys/devices/system/cpu/online Jump to behavior
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.13:44992 -> 194.120.230.54:57899
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: global traffic DNS traffic detected: DNS query: cnc.merisprivate.net
Source: global traffic DNS traffic detected: DNS query: daisy.ubuntu.com
Source: na.elf String found in binary or memory: http://upx.sf.net

System Summary
barindex
Malicious sample detected (through community Yara rule)
Source: 5718.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5718.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_5bf62ce4 Author: unknown
Source: 5718.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_b14f4c5d Author: unknown
Source: 5718.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_449937aa Author: unknown
Source: 5718.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_88de437f Author: unknown
Source: 5718.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: 5718.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: 5718.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Source: 5720.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5720.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_5bf62ce4 Author: unknown
Source: 5720.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_b14f4c5d Author: unknown
Source: 5720.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_449937aa Author: unknown
Source: 5720.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_88de437f Author: unknown
Source: 5720.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: 5720.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: 5720.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Source: 5719.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5719.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_5bf62ce4 Author: unknown
Source: 5719.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_b14f4c5d Author: unknown
Source: 5719.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_449937aa Author: unknown
Source: 5719.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_88de437f Author: unknown
Source: 5719.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: 5719.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: 5719.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Source: Process Memory Space: na.elf PID: 5718, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: na.elf PID: 5719, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: na.elf PID: 5720, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Sample contains only a LOAD segment without any section mappings
Source: LOAD without section mappings Program segment: 0xc01000
Yara signature match
Source: 5718.1.0000000008048000.000000000805c000.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: 5718.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_5bf62ce4 reference_sample = 4c6aeaa6f6a0c40a3f4116a2e19e669188a8b1678a8930350889da1bab531c68, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 3ffc398303f7208e77c4fbdfb50ac896e531b7cee3be2fa820bc8d70cfb20af3, id = 5bf62ce4-619b-4d46-b221-c5bf552474bb, last_modified = 2021-09-16
Source: 5718.1.0000000008048000.000000000805c000.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: 5718.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_449937aa reference_sample = 6f27766534445cffb097c7c52db1fca53b2210c1b10b75594f77c34dc8b994fe, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = cf2c6b86830099f039b41aeaafbffedfb8294a1124c499e99a11f48a06cd1dfd, id = 449937aa-682a-4906-89ab-80d7127e461e, last_modified = 2021-09-16
Source: 5718.1.0000000008048000.000000000805c000.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: 5718.1.0000000008048000.000000000805c000.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: 5718.1.0000000008048000.000000000805c000.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: 5718.1.0000000008048000.000000000805c000.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: 5720.1.0000000008048000.000000000805c000.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: 5720.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_5bf62ce4 reference_sample = 4c6aeaa6f6a0c40a3f4116a2e19e669188a8b1678a8930350889da1bab531c68, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 3ffc398303f7208e77c4fbdfb50ac896e531b7cee3be2fa820bc8d70cfb20af3, id = 5bf62ce4-619b-4d46-b221-c5bf552474bb, last_modified = 2021-09-16
Source: 5720.1.0000000008048000.000000000805c000.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: 5720.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_449937aa reference_sample = 6f27766534445cffb097c7c52db1fca53b2210c1b10b75594f77c34dc8b994fe, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = cf2c6b86830099f039b41aeaafbffedfb8294a1124c499e99a11f48a06cd1dfd, id = 449937aa-682a-4906-89ab-80d7127e461e, last_modified = 2021-09-16
Source: 5720.1.0000000008048000.000000000805c000.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: 5720.1.0000000008048000.000000000805c000.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: 5720.1.0000000008048000.000000000805c000.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: 5720.1.0000000008048000.000000000805c000.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: 5719.1.0000000008048000.000000000805c000.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: 5719.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_5bf62ce4 reference_sample = 4c6aeaa6f6a0c40a3f4116a2e19e669188a8b1678a8930350889da1bab531c68, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 3ffc398303f7208e77c4fbdfb50ac896e531b7cee3be2fa820bc8d70cfb20af3, id = 5bf62ce4-619b-4d46-b221-c5bf552474bb, last_modified = 2021-09-16
Source: 5719.1.0000000008048000.000000000805c000.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: 5719.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_449937aa reference_sample = 6f27766534445cffb097c7c52db1fca53b2210c1b10b75594f77c34dc8b994fe, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = cf2c6b86830099f039b41aeaafbffedfb8294a1124c499e99a11f48a06cd1dfd, id = 449937aa-682a-4906-89ab-80d7127e461e, last_modified = 2021-09-16
Source: 5719.1.0000000008048000.000000000805c000.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: 5719.1.0000000008048000.000000000805c000.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: 5719.1.0000000008048000.000000000805c000.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: 5719.1.0000000008048000.000000000805c000.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: na.elf PID: 5718, 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: na.elf PID: 5719, 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: na.elf PID: 5720, 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: mal76.troj.evad.linELF@0/0@3/0

Data Obfuscation
barindex
Sample is packed with UPX
Source: initial sample String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample String containing UPX found: $Id: UPX 3.94 Copyright (C) 1996-2017 the UPX Team. All Rights Reserved. $
Enumerates processes within the "proc" file system
Source: /usr/bin/ps (PID: 5724) File opened: /proc/230/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/230/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/230/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/110/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/110/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/110/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/231/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/231/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/231/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/111/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/111/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/111/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/232/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/232/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/232/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/112/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/112/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/112/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/233/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/233/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/233/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/113/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/113/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/113/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/234/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/234/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/234/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/114/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/114/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/114/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/235/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/235/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/235/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/115/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/115/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/115/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/236/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/236/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/236/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/116/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/116/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/116/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/237/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/237/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/237/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/117/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/117/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/117/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/238/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/238/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/238/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/118/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/118/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/118/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/239/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/239/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/239/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/119/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/119/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/119/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/914/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/914/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/914/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/10/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/10/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/10/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/917/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/917/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/917/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/11/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/11/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/11/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/12/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/12/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/12/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/13/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/13/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/13/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/14/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/14/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/14/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/15/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/15/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/15/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/16/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/16/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/16/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/17/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/17/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/17/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/18/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/18/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/18/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/19/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/19/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/19/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/240/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/240/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/240/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/3095/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/3095/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/3095/cmdline Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/120/stat Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/120/status Jump to behavior
Source: /usr/bin/ps (PID: 5724) File opened: /proc/120/cmdline Jump to behavior
Executes commands using a shell command-line interpreter
Source: /tmp/na.elf (PID: 5723) Shell command executed: sh -c "ps -A -o pid,cmd --no-headers" Jump to behavior
Executes the "ps" command used to list the status of processes
Source: /bin/sh (PID: 5724) Ps executable: /usr/bin/ps -> ps -A -o pid,cmd --no-headers Jump to behavior
Reads system information from the proc file system
Source: /usr/bin/ps (PID: 5724) Reads from proc file: /proc/meminfo Jump to behavior

Hooking and other Techniques for Hiding and Protection
barindex
Sample deletes itself
Source: /tmp/na.elf (PID: 5718) File: /tmp/na.elf Jump to behavior
ELF contains segments with high entropy indicating compressed/encrypted content
Source: na.elf Submission file: segment LOAD with 7.9673 entropy (max. 8.0)
Reads CPU information from /sys indicative of miner or evasive malware
Source: /usr/bin/ps (PID: 5724) Reads CPU info from /sys: /sys/devices/system/cpu/online Jump to behavior
Source: na.elf, 5720.1.0000000008a98000.0000000008ab1000.rw-.sdmp Binary or memory string: /usr/bin/vmtoolsd
Source: na.elf, 5720.1.0000000008a97000.0000000008a98000.rw-.sdmp Binary or memory string: /usr/bin/vmtoolsdrvicemd-journald
Source: na.elf, 5720.1.0000000008a98000.0000000008ab1000.rw-.sdmp Binary or memory string: /usr/bin/vmtoolsd

Stealing of Sensitive Information
barindex
Yara detected Mirai
Source: Yara match File source: 5718.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 5720.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 5719.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: na.elf PID: 5720, type: MEMORYSTR

Remote Access Functionality
barindex
Yara detected Mirai
Source: Yara match File source: 5718.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 5720.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 5719.1.0000000008048000.000000000805c000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: na.elf PID: 5720, 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
194.120.230.54
 cnc.merisprivate.net unknown
133115 HKKFGL-AS-APHKKwaifongGroupLimitedHK false

Contacted Domains

Name IP Active
daisy.ubuntu.com 162.213.35.25 true
cnc.merisprivate.net 194.120.230.54 true