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Linux Analysis Report
sora.x86.elf

Overview

General Information

Sample name:	sora.x86.elf
Analysis ID:	1601928
MD5:	a5a8ac899ea29e8087a53e9e13b5bf0a
SHA1:	d034450c3defb86faa2e35556a05d15b8c03bcce
SHA256:	f2c692d647ab1fbf7814046123895d986f68364040dedaa2dd89705467550d8a
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	76
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

Machine Learning detection for sample

Sample has stripped symbol table

Yara signature match

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1601928
Start date and time:	2025-01-29 01:57:08 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 21s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	defaultlinuxfilecookbook.jbs
Analysis system description:	Ubuntu Linux 20.04 x64 (Kernel 5.4.0-72, Firefox 91.0, Evince Document Viewer 3.36.10, LibreOffice 6.4.7.2, OpenJDK 11.0.11)
Analysis Mode:	default
Sample name:	sora.x86.elf
Detection:	MAL
Classification:	mal76.troj.linELF@0/0@2/0

Runtime Messages

Command:	/tmp/sora.x86.elf
PID:	5437
Exit Code:	139
Exit Code Info:	SIGSEGV (11) Segmentation fault invalid memory reference
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

sora.x86.elf (PID: 5437, Parent: 5360, MD5: a5a8ac899ea29e8087a53e9e13b5bf0a) Arguments: /tmp/sora.x86.elf

cleanup

Malware Threat Intel

Provided by

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	http://osint.bambenekconsulting.com/feeds/ http://www.simonroses.com/2016/10/mirai-ddos-botnet-source-code-binary-analysis/ https://blog.malwaremustdie.org/2020/02/mmd-0065-2021-linuxmirai-fbot-re.html https://blog.netlab.360.com/another-lilin-dvr-0-day-being-used-to-spread-mirai-en/ https://blog.netlab.360.com/mirai_ptea-botnet-is-exploiting-undisclosed-kguard-dvr-vulnerability-en/	https://malpedia.caad.fkie.fraunhofer.de/details/elf.mirai

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
sora.x86.elf	JoeSecurity_Mirai_9	Yara detected Mirai	Joe Security
sora.x86.elf	Linux_Trojan_Mirai_fa3ad9d0	unknown	unknown	0x37ca:$a: CB 08 C1 CB 10 66 C1 CB 08 31 C9 8A 4F 14 D3 E8 01 D8 66 C1
sora.x86.elf	Linux_Trojan_Mirai_b14f4c5d	unknown	unknown	0x5610:$a: 53 31 DB 8B 4C 24 0C 8B 54 24 08 83 F9 01 76 15 66 8B 02 83 E9 02 25 FF FF 00 00 83 C2 02 01 C3 83 F9 01 77 EB 49 75 05 0F BE 02 01 C3
sora.x86.elf	Linux_Trojan_Mirai_93fc3657	unknown	unknown	0x3855:$a: 00 00 00 89 44 24 60 89 D1 31 C0 8B 7C 24 28 FC F3 AB 89 D1 8B 7C
sora.x86.elf	Linux_Trojan_Mirai_804f8e7c	unknown	unknown	0x36fb:$a: 31 ED 81 E1 FF 00 00 00 89 4C 24 58 89 EA C6 46 04 00 C1 FA 1F
sora.x86.elf	Linux_Trojan_Mirai_99d78950	unknown	unknown	0x4321:$a: 10 89 C3 80 BC 04 83 00 00 00 20 0F 94 C0 8D B4 24 83 00 00 00 25 FF 00 0x4401:$a: 10 89 C3 80 BC 04 83 00 00 00 20 0F 94 C0 8D B4 24 83 00 00 00 25 FF 00 0x44d6:$a: 10 89 C3 80 BC 04 83 00 00 00 20 0F 94 C0 8D B4 24 83 00 00 00 25 FF 00 0x4781:$a: 10 89 C3 80 BC 04 83 00 00 00 20 0F 94 C0 8D B4 24 83 00 00 00 25 FF 00 0x4c03:$a: 10 89 C3 80 BC 04 83 00 00 00 20 0F 94 C0 8D B4 24 83 00 00 00 25 FF 00
sora.x86.elf	Linux_Trojan_Mirai_a68e498c	unknown	unknown	0x3613:$a: 10 39 D0 7E 25 8B 4C 24 38 01 D1 8A 11 8D 42 9F 3C 19 77 05 8D
sora.x86.elf	Linux_Trojan_Mirai_88de437f	unknown	unknown	0xb272:$a: 24 08 8B 4C 24 04 85 D2 74 0D 31 C0 89 F6 C6 04 08 00 40 39 D0
sora.x86.elf	Linux_Trojan_Mirai_ae9d0fa6	unknown	unknown	0x192:$a: 83 EC 04 8A 44 24 18 8B 5C 24 14 88 44 24 03 8A 44 24 10 25 FF 00
sora.x86.elf	Linux_Trojan_Mirai_389ee3e9	unknown	unknown	0xd131:$a: 89 45 00 EB 2C 8B 4B 04 8B 13 8B 7B 18 8B 01 01 02 8B 02 83
sora.x86.elf	Linux_Trojan_Mirai_cc93863b	unknown	unknown	0xbc8b:$a: C3 57 8B 44 24 0C 8B 4C 24 10 8B 7C 24 08 F3 AA 8B 44 24 08
sora.x86.elf	Linux_Trojan_Mirai_8aa7b5d3	unknown	unknown	0xb242:$a: 8B 4C 24 14 8B 74 24 0C 8B 5C 24 10 85 C9 74 0D 31 D2 8A 04 1A 88
Click to see the 7 entries

Memory Dumps

Source	Rule	Description	Author	Strings
5437.1.0000000008048000.0000000008058000.r-x.sdmp	JoeSecurity_Mirai_9	Yara detected Mirai	Joe Security
5437.1.0000000008048000.0000000008058000.r-x.sdmp	Linux_Trojan_Mirai_fa3ad9d0	unknown	unknown	0x37ca:$a: CB 08 C1 CB 10 66 C1 CB 08 31 C9 8A 4F 14 D3 E8 01 D8 66 C1
5437.1.0000000008048000.0000000008058000.r-x.sdmp	Linux_Trojan_Mirai_b14f4c5d	unknown	unknown	0x5610:$a: 53 31 DB 8B 4C 24 0C 8B 54 24 08 83 F9 01 76 15 66 8B 02 83 E9 02 25 FF FF 00 00 83 C2 02 01 C3 83 F9 01 77 EB 49 75 05 0F BE 02 01 C3
5437.1.0000000008048000.0000000008058000.r-x.sdmp	Linux_Trojan_Mirai_93fc3657	unknown	unknown	0x3855:$a: 00 00 00 89 44 24 60 89 D1 31 C0 8B 7C 24 28 FC F3 AB 89 D1 8B 7C
5437.1.0000000008048000.0000000008058000.r-x.sdmp	Linux_Trojan_Mirai_804f8e7c	unknown	unknown	0x36fb:$a: 31 ED 81 E1 FF 00 00 00 89 4C 24 58 89 EA C6 46 04 00 C1 FA 1F
5437.1.0000000008048000.0000000008058000.r-x.sdmp	Linux_Trojan_Mirai_99d78950	unknown	unknown	0x4321:$a: 10 89 C3 80 BC 04 83 00 00 00 20 0F 94 C0 8D B4 24 83 00 00 00 25 FF 00 0x4401:$a: 10 89 C3 80 BC 04 83 00 00 00 20 0F 94 C0 8D B4 24 83 00 00 00 25 FF 00 0x44d6:$a: 10 89 C3 80 BC 04 83 00 00 00 20 0F 94 C0 8D B4 24 83 00 00 00 25 FF 00 0x4781:$a: 10 89 C3 80 BC 04 83 00 00 00 20 0F 94 C0 8D B4 24 83 00 00 00 25 FF 00 0x4c03:$a: 10 89 C3 80 BC 04 83 00 00 00 20 0F 94 C0 8D B4 24 83 00 00 00 25 FF 00
5437.1.0000000008048000.0000000008058000.r-x.sdmp	Linux_Trojan_Mirai_a68e498c	unknown	unknown	0x3613:$a: 10 39 D0 7E 25 8B 4C 24 38 01 D1 8A 11 8D 42 9F 3C 19 77 05 8D
5437.1.0000000008048000.0000000008058000.r-x.sdmp	Linux_Trojan_Mirai_88de437f	unknown	unknown	0xb272:$a: 24 08 8B 4C 24 04 85 D2 74 0D 31 C0 89 F6 C6 04 08 00 40 39 D0
5437.1.0000000008048000.0000000008058000.r-x.sdmp	Linux_Trojan_Mirai_ae9d0fa6	unknown	unknown	0x192:$a: 83 EC 04 8A 44 24 18 8B 5C 24 14 88 44 24 03 8A 44 24 10 25 FF 00
5437.1.0000000008048000.0000000008058000.r-x.sdmp	Linux_Trojan_Mirai_389ee3e9	unknown	unknown	0xd131:$a: 89 45 00 EB 2C 8B 4B 04 8B 13 8B 7B 18 8B 01 01 02 8B 02 83
5437.1.0000000008048000.0000000008058000.r-x.sdmp	Linux_Trojan_Mirai_cc93863b	unknown	unknown	0xbc8b:$a: C3 57 8B 44 24 0C 8B 4C 24 10 8B 7C 24 08 F3 AA 8B 44 24 08
5437.1.0000000008048000.0000000008058000.r-x.sdmp	Linux_Trojan_Mirai_8aa7b5d3	unknown	unknown	0xb242:$a: 8B 4C 24 14 8B 74 24 0C 8B 5C 24 10 85 C9 74 0D 31 D2 8A 04 1A 88
Click to see the 7 entries

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary
• Stealing of Sensitive Information
• Remote Access Functionality

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: sora.x86.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: sora.x86.elf	Virustotal: Detection: 60%			Perma Link
Source: sora.x86.elf	ReversingLabs: Detection: 71%

Machine Learning detection for sample

Source: sora.x86.elf

Joe Sandbox ML: detected

Source: global traffic

DNS traffic detected: DNS query: daisy.ubuntu.com

System Summary

Malicious sample detected (through community Yara rule)

Source: sora.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_fa3ad9d0 Author: unknown
Source: sora.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_b14f4c5d Author: unknown
Source: sora.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_93fc3657 Author: unknown
Source: sora.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_804f8e7c Author: unknown
Source: sora.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_99d78950 Author: unknown
Source: sora.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_a68e498c Author: unknown
Source: sora.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_88de437f Author: unknown
Source: sora.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_ae9d0fa6 Author: unknown
Source: sora.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: sora.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: sora.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Source: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_fa3ad9d0 Author: unknown
Source: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_b14f4c5d Author: unknown
Source: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_93fc3657 Author: unknown
Source: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_804f8e7c Author: unknown
Source: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_99d78950 Author: unknown
Source: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_a68e498c Author: unknown
Source: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_88de437f Author: unknown
Source: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_ae9d0fa6 Author: unknown
Source: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown

Source: ELF static info symbol of initial sample

.symtab present: no

Source: sora.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_fa3ad9d0 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 = fe93a3552b72b107f95cc5a7e59da64fe84d31df833bf36c81d8f31d8d79d7ca, id = fa3ad9d0-7c55-4621-90fc-6b154c44a67b, last_modified = 2021-09-16
Source: sora.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: sora.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_93fc3657 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 = d01a9e85a01fad913ca048b60bda1e5a2762f534e5308132c1d3098ac3f561ee, id = 93fc3657-fd21-4e93-a728-c084fc0a6a4a, last_modified = 2021-09-16
Source: sora.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_804f8e7c 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 = 1080d8502848d532a0b38861437485d98a41d945acaf3cb676a7a2a2f6793ac6, id = 804f8e7c-4786-42bc-92e4-c68c24ca530e, last_modified = 2021-09-16
Source: sora.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_99d78950 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 = 3008edc4e7a099b64139a77d15ec0e2c3c1b55fc23ab156304571c4d14bc654c, id = 99d78950-ea23-4166-a85a-7a029209f5b1, last_modified = 2021-09-16
Source: sora.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_a68e498c 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 = 951c9dfcba531e5112c872395f6c144c4bc8b71c666d2c7d9d8574a23c163883, id = a68e498c-0768-4321-ab65-42dd6ef85323, last_modified = 2021-09-16
Source: sora.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: sora.x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_ae9d0fa6 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = ca2bf2771844bec95563800d19a35dd230413f8eff0bd44c8ab0b4c596f81bfc, id = ae9d0fa6-be06-4656-9b13-8edfc0ee9e71, last_modified = 2021-09-16
Source: sora.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: sora.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: sora.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: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_fa3ad9d0 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 = fe93a3552b72b107f95cc5a7e59da64fe84d31df833bf36c81d8f31d8d79d7ca, id = fa3ad9d0-7c55-4621-90fc-6b154c44a67b, last_modified = 2021-09-16
Source: 5437.1.0000000008048000.0000000008058000.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: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_93fc3657 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 = d01a9e85a01fad913ca048b60bda1e5a2762f534e5308132c1d3098ac3f561ee, id = 93fc3657-fd21-4e93-a728-c084fc0a6a4a, last_modified = 2021-09-16
Source: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_804f8e7c 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 = 1080d8502848d532a0b38861437485d98a41d945acaf3cb676a7a2a2f6793ac6, id = 804f8e7c-4786-42bc-92e4-c68c24ca530e, last_modified = 2021-09-16
Source: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_99d78950 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 = 3008edc4e7a099b64139a77d15ec0e2c3c1b55fc23ab156304571c4d14bc654c, id = 99d78950-ea23-4166-a85a-7a029209f5b1, last_modified = 2021-09-16
Source: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_a68e498c 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 = 951c9dfcba531e5112c872395f6c144c4bc8b71c666d2c7d9d8574a23c163883, id = a68e498c-0768-4321-ab65-42dd6ef85323, last_modified = 2021-09-16
Source: 5437.1.0000000008048000.0000000008058000.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: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_ae9d0fa6 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = ca2bf2771844bec95563800d19a35dd230413f8eff0bd44c8ab0b4c596f81bfc, id = ae9d0fa6-be06-4656-9b13-8edfc0ee9e71, last_modified = 2021-09-16
Source: 5437.1.0000000008048000.0000000008058000.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: 5437.1.0000000008048000.0000000008058000.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: 5437.1.0000000008048000.0000000008058000.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: classification engine

Classification label: mal76.troj.linELF@0/0@2/0

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: sora.x86.elf, type: SAMPLE
Source: Yara match	File source: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: sora.x86.elf, type: SAMPLE
Source: Yara match	File source: 5437.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	Path Interception	Path Interception	Direct Volume Access	OS Credential Dumping	System Service Discovery	Remote Services	Data from Local System	1 Non-Application Layer Protocol	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	Rootkit	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	1 Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service

Malware Configuration

⊘No configs have been found

Behavior Graph

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Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Number of created Files
Is malicious
Internet

Screenshots

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Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
sora.x86.elf	61%	Virustotal		Browse
sora.x86.elf	71%	ReversingLabs	Linux.Trojan.Mirai
sora.x86.elf	100%	Avira	EXP/ELF.Mirai.M
sora.x86.elf	100%	Joe Sandbox ML

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
daisy.ubuntu.com	162.213.35.24	true	false		high

World Map of Contacted IPs

⊘No contacted IP infos

Joe Sandbox View / Context

IPs

⊘No context

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	sora.sh4.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	hidakibest.arm4.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	hidakibest.mpsl.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.25
	sora.i686.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	hidakibest.ppc.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.25
	hidakibest.arm6.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	hidakibest.x86.elf	Get hash	malicious	Mirai, Gafgyt	Browse	162.213.35.24
	sora.ppc.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	h.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	arm6.elf	Get hash	malicious	Unknown	Browse	162.213.35.24

ASNs

⊘No context

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Static File Info

General

File type:	ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.491254128578865
TrID:	ELF Executable and Linkable format (Linux) (4029/14) 50.16% ELF Executable and Linkable format (generic) (4004/1) 49.84%
File name:	sora.x86.elf
File size:	62'832 bytes
MD5:	a5a8ac899ea29e8087a53e9e13b5bf0a
SHA1:	d034450c3defb86faa2e35556a05d15b8c03bcce
SHA256:	f2c692d647ab1fbf7814046123895d986f68364040dedaa2dd89705467550d8a
SHA512:	31e6021d18222e7f8e1d37c32004feea93c8b2054b05d4e14d255f9f5a8e134ba1a6d5d2f3b9ab535cecd6cd09e99948b621f375dba4f7c0dd07c59bfccd51ad
SSDEEP:	768:WBeRPmk5OHOmG1wTclXnZJlORAUqKpODG2BWOvF/j0u40nwM4tin3Y3jq4GC:vRPp5OHOmG1wut3TWOWf0P4tinI3jq
TLSH:	C5532AC4B1D3E9F9DC100978307A6B629E73F13FB436EA9BD3D964639902702E20665D
File Content Preview:	.ELF....................d...4...........4. ...(.....................@...@...............D...D...D...\...\...........Q.td............................U..S............h....s...[]...$.............U......=.....t..5...................u........t....h@r..........

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	Intel 80386
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x8048164
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	62432
Section Header Size:	40
Number of Section Headers:	10
Header String Table Index:	9

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x8048094	0x94	0x1c	0x0	0x6	AX	1
.text	PROGBITS	0x80480b0	0xb0	0xdf96	0x0	0x6	AX	16
.fini	PROGBITS	0x8056046	0xe046	0x17	0x0	0x6	AX	1
.rodata	PROGBITS	0x8056060	0xe060	0x11e0	0x0	0x2	A	32
.ctors	PROGBITS	0x8058244	0xf244	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x805824c	0xf24c	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x8058280	0xf280	0x120	0x0	0x3	WA	32
.bss	NOBITS	0x80583a0	0xf3a0	0x600	0x0	0x3	WA	32
.shstrtab	STRTAB	0x0	0xf3a0	0x3e	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x8048000	0x8048000	0xf240	0xf240	6.5118	0x5	R E	0x1000	.init .text .fini .rodata
LOAD	0xf244	0x8058244	0x8058244	0x15c	0x75c	4.2398	0x6	RW	0x1000	.ctors .dtors .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

Download Network PCAP: filtered – full

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jan 29, 2025 01:57:57.570905924 CET	38207	53	192.168.2.13	8.8.8.8
Jan 29, 2025 01:57:57.571094036 CET	42962	53	192.168.2.13	8.8.8.8
Jan 29, 2025 01:57:57.578104019 CET	53	42962	8.8.8.8	192.168.2.13
Jan 29, 2025 01:57:57.578136921 CET	53	38207	8.8.8.8	192.168.2.13

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Jan 29, 2025 01:57:57.570905924 CET	192.168.2.13	8.8.8.8	0x4827	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Jan 29, 2025 01:57:57.571094036 CET	192.168.2.13	8.8.8.8	0x1a96	Standard query (0)	daisy.ubuntu.com	28	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Jan 29, 2025 01:57:57.578136921 CET	8.8.8.8	192.168.2.13	0x4827	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false
Jan 29, 2025 01:57:57.578136921 CET	8.8.8.8	192.168.2.13	0x4827	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: sora.x86.elf PID: 5437, Parent PID: 5360

General

Start time (UTC):	00:57:56
Start date (UTC):	29/01/2025
Path:	/tmp/sora.x86.elf
Arguments:	/tmp/sora.x86.elf
File size:	62832 bytes
MD5 hash:	a5a8ac899ea29e8087a53e9e13b5bf0a

Description:	Adversaries may use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using OSI application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Linux Analysis Report sora.x86.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Malware Threat Intel

Yara Signatures

Initial Sample

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Stealing of Sensitive Information

Remote Access Functionality

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

World Map of Contacted IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: sora.x86.elf PID: 5437, Parent PID: 5360

General

Linux Analysis Report
sora.x86.elf