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Linux Analysis Report
x86.elf

Overview

General Information

Sample name:	x86.elf
Analysis ID:	1589768
MD5:	70849375e90c7aae7e7b1cde0dfdf04c
SHA1:	498ae78adece280b4cd546a298ab74fd6f80dea0
SHA256:	d622de47068c7dfbfd0da545424e4da8adb282486b549278bcd6296916efb244
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	60
Range:	0 - 100
Whitelisted:	false

Signatures

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Machine Learning detection for sample

Detected TCP or UDP traffic on non-standard ports

Sample has stripped symbol table

Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)

Yara signature match

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1589768
Start date and time:	2025-01-13 05:56:08 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 25s
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:	x86.elf
Detection:	MAL
Classification:	mal60.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/x86.elf
PID:	6219
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	wormbot
Standard Error:

Process Tree

system is lnxubuntu20

x86.elf (PID: 6219, Parent: 6137, MD5: 70849375e90c7aae7e7b1cde0dfdf04c) Arguments: /tmp/x86.elf

x86.elf New Fork (PID: 6220, Parent: 6219)

cleanup

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
x86.elf	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x9788:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x979c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x97b0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x97c4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x97d8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x97ec:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9800:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9814:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9828:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x983c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9850:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9864:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9878:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x988c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x98a0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x98b4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x98c8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x98dc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x98f0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9904:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9918:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
x86.elf	Linux_Trojan_Mirai_122ff2e6	unknown	unknown	0x65ef:$a: 24 EB 15 89 F0 83 C8 01 EB 03 8B 5B 08 3B 43 04 72 F8 8B 4B 0C 89
x86.elf	Linux_Trojan_Mirai_fa48b592	unknown	unknown	0x8ef1:$a: 31 C0 BA 01 00 00 00 B9 01 00 00 00 03 04 24 89 D7 31 D2 F7 F7 0F
x86.elf	Linux_Trojan_Mirai_8aa7b5d3	unknown	unknown	0x4bf2:$a: 8B 4C 24 14 8B 74 24 0C 8B 5C 24 10 85 C9 74 0D 31 D2 8A 04 1A 88

Memory Dumps

Source	Rule	Description	Author	Strings
6219.1.0000000008048000.0000000008053000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x9788:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x979c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x97b0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x97c4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x97d8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x97ec:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9800:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9814:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9828:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x983c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9850:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9864:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9878:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x988c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x98a0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x98b4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x98c8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x98dc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x98f0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9904:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9918:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
6219.1.0000000008048000.0000000008053000.r-x.sdmp	Linux_Trojan_Mirai_122ff2e6	unknown	unknown	0x65ef:$a: 24 EB 15 89 F0 83 C8 01 EB 03 8B 5B 08 3B 43 04 72 F8 8B 4B 0C 89
6219.1.0000000008048000.0000000008053000.r-x.sdmp	Linux_Trojan_Mirai_fa48b592	unknown	unknown	0x8ef1:$a: 31 C0 BA 01 00 00 00 B9 01 00 00 00 03 04 24 89 D7 31 D2 F7 F7 0F
6219.1.0000000008048000.0000000008053000.r-x.sdmp	Linux_Trojan_Mirai_8aa7b5d3	unknown	unknown	0x4bf2:$a: 8B 4C 24 14 8B 74 24 0C 8B 5C 24 10 85 C9 74 0D 31 D2 8A 04 1A 88

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: x86.elf

ReversingLabs: Detection: 36%

Machine Learning detection for sample

Source: x86.elf

Joe Sandbox ML: detected

Source: global traffic

TCP traffic: 192.168.2.23:39346 -> 85.239.34.134:999

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: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
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: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
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: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134

Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

System Summary

Malicious sample detected (through community Yara rule)

Source: x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_122ff2e6 Author: unknown
Source: x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_fa48b592 Author: unknown
Source: x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Source: 6219.1.0000000008048000.0000000008053000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 6219.1.0000000008048000.0000000008053000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_122ff2e6 Author: unknown
Source: 6219.1.0000000008048000.0000000008053000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_fa48b592 Author: unknown
Source: 6219.1.0000000008048000.0000000008053000.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: 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: x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_122ff2e6 reference_sample = c7dd999a033fa3edc1936785b87cd69ce2f5cac5a084ddfaf527a1094e718bc4, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 3c9ffd7537e30a21eefa6c174f801264b92a85a1bc73e34e6dc9e29f84658348, id = 122ff2e6-56e6-4aa8-a3ec-c19d31eb1f80, last_modified = 2021-09-16
Source: x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_fa48b592 reference_sample = c9e33befeec133720b3ba40bb3cd7f636aad80f72f324c5fe65ac7af271c49ee, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 8838d2752b310dbf7d12f6cf023244aaff4fdf5b55cf1e3b71843210df0fcf88, id = fa48b592-8d80-45af-a3e4-232695b8f5dd, last_modified = 2021-09-16
Source: 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: 6219.1.0000000008048000.0000000008053000.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: 6219.1.0000000008048000.0000000008053000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_122ff2e6 reference_sample = c7dd999a033fa3edc1936785b87cd69ce2f5cac5a084ddfaf527a1094e718bc4, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 3c9ffd7537e30a21eefa6c174f801264b92a85a1bc73e34e6dc9e29f84658348, id = 122ff2e6-56e6-4aa8-a3ec-c19d31eb1f80, last_modified = 2021-09-16
Source: 6219.1.0000000008048000.0000000008053000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_fa48b592 reference_sample = c9e33befeec133720b3ba40bb3cd7f636aad80f72f324c5fe65ac7af271c49ee, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 8838d2752b310dbf7d12f6cf023244aaff4fdf5b55cf1e3b71843210df0fcf88, id = fa48b592-8d80-45af-a3e4-232695b8f5dd, last_modified = 2021-09-16
Source: 6219.1.0000000008048000.0000000008053000.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: mal60.linELF@0/0@0/0

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 Encrypted Channel	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 Non-Standard Port	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	1 Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact

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
x86.elf	37%	ReversingLabs	Linux.Backdoor.Mirai
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

⊘No contacted domains info

World Map of Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public IPs

IP	Domain	Country	ASN	ASN Name	Malicious
85.239.34.134	unknown	Russian Federation	134121	RAINBOW-HKRainbownetworklimitedHK	false
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

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
85.239.34.134	arm5.elf	Get hash	malicious	Unknown	Browse
	spc.elf	Get hash	malicious	Unknown	Browse
	harm.elf	Get hash	malicious	Unknown	Browse
	arm6.elf	Get hash	malicious	Unknown	Browse
	mpsl.elf	Get hash	malicious	Unknown	Browse
	arm.elf	Get hash	malicious	Unknown	Browse
	sh4.elf	Get hash	malicious	Unknown	Browse
	m68k.elf	Get hash	malicious	Mirai	Browse
	x86.elf	Get hash	malicious	Mirai	Browse
	sh4.elf	Get hash	malicious	Unknown	Browse
109.202.202.202	kpLwzBouH4.elf	Get hash	malicious	Unknown	Browse	ch.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox_92.0%2bbuild3-0ubuntu0.20.04.1_amd64.deb
91.189.91.43	byte.x86.elf	Get hash	malicious	Mirai, Okiru	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	byte.arm5.elf	Get hash	malicious	Mirai, Okiru	Browse
	byte.mpsl.elf	Get hash	malicious	Mirai, Okiru	Browse
	byte.sh4.elf	Get hash	malicious	Mirai, Okiru	Browse
	byte.ppc.elf	Get hash	malicious	Mirai, Okiru	Browse
	byte.spc.elf	Get hash	malicious	Mirai, Okiru	Browse
	byte.m68k.elf	Get hash	malicious	Mirai, Okiru	Browse
	spc.elf	Get hash	malicious	Unknown	Browse
	harm.elf	Get hash	malicious	Unknown	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
RAINBOW-HKRainbownetworklimitedHK	arm5.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	spc.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	harm.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	arm6.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	mpsl.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	arm.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	sh4.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	m68k.elf	Get hash	malicious	Mirai	Browse	85.239.34.134
	x86.elf	Get hash	malicious	Mirai	Browse	85.239.34.134
	4kN17cL4Tn.exe	Get hash	malicious	LummaC	Browse	85.239.54.77
CANONICAL-ASGB	byte.x86.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	byte.arm5.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	byte.mpsl.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	byte.sh4.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	byte.ppc.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	byte.spc.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	byte.m68k.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	spc.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	harm.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
CANONICAL-ASGB	byte.x86.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	byte.arm5.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	byte.mpsl.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	byte.sh4.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	byte.ppc.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	byte.spc.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	byte.m68k.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	spc.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	harm.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
INIT7CH	byte.x86.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	byte.arm5.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	byte.mpsl.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	byte.sh4.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	byte.ppc.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	byte.spc.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	byte.m68k.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	spc.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	harm.elf	Get hash	malicious	Unknown	Browse	109.202.202.202

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):	6.408616204139398
TrID:	ELF Executable and Linkable format (Linux) (4029/14) 50.16% ELF Executable and Linkable format (generic) (4004/1) 49.84%
File name:	x86.elf
File size:	44'660 bytes
MD5:	70849375e90c7aae7e7b1cde0dfdf04c
SHA1:	498ae78adece280b4cd546a298ab74fd6f80dea0
SHA256:	d622de47068c7dfbfd0da545424e4da8adb282486b549278bcd6296916efb244
SHA512:	59e422891eb41a07d7294720c732f691618933fd06086e2160c47799ad5d5480860da87f87efbe057f13ed4153aa5f320e6b780ea4510ee135bd618dae4ae8d7
SSDEEP:	768:1X8DBE8VaoIEbcPTWGdtCprIeRrHiv5ojQZ4T2aLtucs/O:CbgP6Pr/RrCBmQZvaLQB/
TLSH:	D8134B88F643DAF6D84311F41092FB3F5A30F1EA3298E547D3F49A76BC13911590BA9A
File Content Preview:	.ELF........................4...D.......4. ...(..............................................2...2......X8.............. ... 8.. 8..................Q.td............................U..S.......w....h........[]...$.............U......=.<...t..5....D8.....D8.

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:	0x8048184
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	4
Section Header Offset:	44100
Section Header Size:	40
Number of Section Headers:	14
Header String Table Index:	13

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x80480b4	0xb4	0x1c	0x0	0x6	AX	1
.text	PROGBITS	0x80480d0	0xd0	0x91e7	0x0	0x6	AX	16
.fini	PROGBITS	0x80512b7	0x92b7	0x17	0x0	0x6	AX	1
.rodata	PROGBITS	0x80512d0	0x92d0	0x1004	0x0	0x2	A	4
.eh_frame	PROGBITS	0x80532d4	0xa2d4	0x54c	0x0	0x3	WA	4
.tbss	NOBITS	0x8053820	0xa820	0x8	0x0	0x403	WAT	4
.ctors	PROGBITS	0x8053820	0xa820	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x8053828	0xa828	0x8	0x0	0x3	WA	4
.jcr	PROGBITS	0x8053830	0xa830	0x4	0x0	0x3	WA	4
.got.plt	PROGBITS	0x8053834	0xa834	0xc	0x4	0x3	WA	4
.data	PROGBITS	0x8053840	0xa840	0x3a8	0x0	0x3	WA	32
.bss	NOBITS	0x8053c00	0xabe8	0x2f2c	0x0	0x3	WA	32
.shstrtab	STRTAB	0x0	0xabe8	0x5c	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	0xa2d4	0xa2d4	6.4474	0x5	R E	0x1000	.init .text .fini .rodata
LOAD	0xa2d4	0x80532d4	0x80532d4	0x914	0x3858	5.0838	0x6	RW	0x1000	.eh_frame .tbss .ctors .dtors .jcr .got.plt .data .bss
TLS	0xa820	0x8053820	0x8053820	0x0	0x8	0.0000	0x4	R	0x4	.tbss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 15
• 999 undefined
• 443 (HTTPS)
• 80 (HTTP)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jan 13, 2025 05:56:47.891835928 CET	39346	999	192.168.2.23	85.239.34.134
Jan 13, 2025 05:56:47.896764040 CET	999	39346	85.239.34.134	192.168.2.23
Jan 13, 2025 05:56:47.896831989 CET	39346	999	192.168.2.23	85.239.34.134
Jan 13, 2025 05:56:47.896859884 CET	39346	999	192.168.2.23	85.239.34.134
Jan 13, 2025 05:56:47.901634932 CET	999	39346	85.239.34.134	192.168.2.23
Jan 13, 2025 05:56:47.901680946 CET	39346	999	192.168.2.23	85.239.34.134
Jan 13, 2025 05:56:47.906584978 CET	999	39346	85.239.34.134	192.168.2.23
Jan 13, 2025 05:56:48.155874968 CET	43928	443	192.168.2.23	91.189.91.42
Jan 13, 2025 05:56:53.531131029 CET	42836	443	192.168.2.23	91.189.91.43
Jan 13, 2025 05:56:55.066876888 CET	42516	80	192.168.2.23	109.202.202.202
Jan 13, 2025 05:56:57.905806065 CET	39346	999	192.168.2.23	85.239.34.134
Jan 13, 2025 05:56:57.910762072 CET	999	39346	85.239.34.134	192.168.2.23
Jan 13, 2025 05:56:58.128243923 CET	999	39346	85.239.34.134	192.168.2.23
Jan 13, 2025 05:56:58.128330946 CET	39346	999	192.168.2.23	85.239.34.134
Jan 13, 2025 05:57:08.377017975 CET	43928	443	192.168.2.23	91.189.91.42
Jan 13, 2025 05:57:20.663556099 CET	42836	443	192.168.2.23	91.189.91.43
Jan 13, 2025 05:57:24.758915901 CET	42516	80	192.168.2.23	109.202.202.202
Jan 13, 2025 05:57:49.331481934 CET	43928	443	192.168.2.23	91.189.91.42
Jan 13, 2025 05:57:58.168163061 CET	39346	999	192.168.2.23	85.239.34.134
Jan 13, 2025 05:57:58.173111916 CET	999	39346	85.239.34.134	192.168.2.23
Jan 13, 2025 05:57:58.391307116 CET	999	39346	85.239.34.134	192.168.2.23
Jan 13, 2025 05:57:58.391453981 CET	39346	999	192.168.2.23	85.239.34.134

System Behavior

Analysis Process: x86.elf PID: 6219, Parent PID: 6137

General

Start time (UTC):	04:56:47
Start date (UTC):	13/01/2025
Path:	/tmp/x86.elf
Arguments:	/tmp/x86.elf
File size:	44660 bytes
MD5 hash:	70849375e90c7aae7e7b1cde0dfdf04c

Process Activities

Process Forked

Prctl Requested

Chronological Activities

Analysis Process: x86.elf PID: 6220, Parent PID: 6219

General

Start time (UTC):	04:56:47
Start date (UTC):	13/01/2025
Path:	/tmp/x86.elf
Arguments:	-
File size:	44660 bytes
MD5 hash:	70849375e90c7aae7e7b1cde0dfdf04c

Description:	Adversaries may employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using a protocol and port pairing that are typically not associated. For example, HTTPS over port 8088or port 587as opposed to the traditional port 443. Adversaries may make changes to the standard port used by a protocol to bypass filtering or muddle analysis/parsing of network data.
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

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

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report x86.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Yara Signatures

Initial Sample

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

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

Public 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

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: x86.elf PID: 6219, Parent PID: 6137

General

Process Activities

Process Forked

Prctl Requested

Chronological Activities

Analysis Process: x86.elf PID: 6220, Parent PID: 6219

General

Linux Analysis Report
x86.elf