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Linux Analysis Report
x86.elf

Overview

General Information

Sample name:	x86.elf
Analysis ID:	1594535
MD5:	932a3d7aeccc1b42781d4cb6b36cebfe
SHA1:	e822ec7e9bd300baf9da5aba8d014c6c908bfea2
SHA256:	1f38834ddbb85107ca3a25282bcecfc3bd78e6ab2d78881d45118c4a7f31965b
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	52
Range:	0 - 100
Whitelisted:	false

Signatures

Malicious sample detected (through community Yara rule)

Machine Learning detection for sample

Detected TCP or UDP traffic on non-standard ports

Executes the "rm" command used to delete files or directories

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:	1594535
Start date and time:	2025-01-19 05:42:04 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 33s
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:	mal52.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/x86.elf
PID:	6265
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

dash New Fork (PID: 6236, Parent: 4336)

rm (PID: 6236, Parent: 4336, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.8PqsqQ8pJC /tmp/tmp.7JksnXmAZm /tmp/tmp.Vt6LQeX4Jz

dash New Fork (PID: 6237, Parent: 4336)

rm (PID: 6237, Parent: 4336, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.8PqsqQ8pJC /tmp/tmp.7JksnXmAZm /tmp/tmp.Vt6LQeX4Jz

x86.elf (PID: 6265, Parent: 6163, MD5: 932a3d7aeccc1b42781d4cb6b36cebfe) Arguments: /tmp/x86.elf

x86.elf New Fork (PID: 6266, Parent: 6265)

cleanup

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
x86.elf	Linux_Trojan_Gafgyt_e6d75e6f	unknown	unknown	0x64ba:$a: 00 00 00 CD 80 C3 8B 54 24 04 8B 4C 24 08 87 D3 B8 5B 00 00 00
x86.elf	Linux_Trojan_Mirai_122ff2e6	unknown	unknown	0x4733:$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	0x7cb5:$a: 31 C0 BA 01 00 00 00 B9 01 00 00 00 03 04 24 89 D7 31 D2 F7 F7 0F
x86.elf	Linux_Trojan_Mirai_8aa7b5d3	unknown	unknown	0x3bb2:$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
6265.1.0000000008048000.0000000008051000.r-x.sdmp	Linux_Trojan_Gafgyt_e6d75e6f	unknown	unknown	0x64ba:$a: 00 00 00 CD 80 C3 8B 54 24 04 8B 4C 24 08 87 D3 B8 5B 00 00 00
6265.1.0000000008048000.0000000008051000.r-x.sdmp	Linux_Trojan_Mirai_122ff2e6	unknown	unknown	0x4733:$a: 24 EB 15 89 F0 83 C8 01 EB 03 8B 5B 08 3B 43 04 72 F8 8B 4B 0C 89
6265.1.0000000008048000.0000000008051000.r-x.sdmp	Linux_Trojan_Mirai_fa48b592	unknown	unknown	0x7cb5:$a: 31 C0 BA 01 00 00 00 B9 01 00 00 00 03 04 24 89 D7 31 D2 F7 F7 0F
6265.1.0000000008048000.0000000008051000.r-x.sdmp	Linux_Trojan_Mirai_8aa7b5d3	unknown	unknown	0x3bb2:$a: 8B 4C 24 14 8B 74 24 0C 8B 5C 24 10 85 C9 74 0D 31 D2 8A 04 1A 88
6266.1.0000000008048000.0000000008051000.r-x.sdmp	Linux_Trojan_Gafgyt_e6d75e6f	unknown	unknown	0x64ba:$a: 00 00 00 CD 80 C3 8B 54 24 04 8B 4C 24 08 87 D3 B8 5B 00 00 00
6266.1.0000000008048000.0000000008051000.r-x.sdmp	Linux_Trojan_Mirai_122ff2e6	unknown	unknown	0x4733:$a: 24 EB 15 89 F0 83 C8 01 EB 03 8B 5B 08 3B 43 04 72 F8 8B 4B 0C 89
6266.1.0000000008048000.0000000008051000.r-x.sdmp	Linux_Trojan_Mirai_fa48b592	unknown	unknown	0x7cb5:$a: 31 C0 BA 01 00 00 00 B9 01 00 00 00 03 04 24 89 D7 31 D2 F7 F7 0F
6266.1.0000000008048000.0000000008051000.r-x.sdmp	Linux_Trojan_Mirai_8aa7b5d3	unknown	unknown	0x3bb2:$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 3 entries

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary
• Persistence and Installation Behavior

Click to jump to signature section

Show All Signature Results

AV Detection

Machine Learning detection for sample

Source: x86.elf

Joe Sandbox ML: detected

Source: global traffic

TCP traffic: 192.168.2.23:48744 -> 85.239.34.134:5683

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: 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: 91.189.91.43

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_e6d75e6f 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: 6265.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_e6d75e6f Author: unknown
Source: 6265.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_122ff2e6 Author: unknown
Source: 6265.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_fa48b592 Author: unknown
Source: 6265.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Source: 6266.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_e6d75e6f Author: unknown
Source: 6266.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_122ff2e6 Author: unknown
Source: 6266.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_fa48b592 Author: unknown
Source: 6266.1.0000000008048000.0000000008051000.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_e6d75e6f reference_sample = 48b15093f33c18778724c48c34199a420be4beb0d794e36034097806e1521eb8, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = e99805e8917d6526031270b6da5c2f3cc1c8235fed1d47134835a107d0df497c, id = e6d75e6f-aa04-4767-8730-6909958044a7, 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: 6265.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_e6d75e6f reference_sample = 48b15093f33c18778724c48c34199a420be4beb0d794e36034097806e1521eb8, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = e99805e8917d6526031270b6da5c2f3cc1c8235fed1d47134835a107d0df497c, id = e6d75e6f-aa04-4767-8730-6909958044a7, last_modified = 2021-09-16
Source: 6265.1.0000000008048000.0000000008051000.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: 6265.1.0000000008048000.0000000008051000.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: 6265.1.0000000008048000.0000000008051000.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: 6266.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_e6d75e6f reference_sample = 48b15093f33c18778724c48c34199a420be4beb0d794e36034097806e1521eb8, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = e99805e8917d6526031270b6da5c2f3cc1c8235fed1d47134835a107d0df497c, id = e6d75e6f-aa04-4767-8730-6909958044a7, last_modified = 2021-09-16
Source: 6266.1.0000000008048000.0000000008051000.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: 6266.1.0000000008048000.0000000008051000.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: 6266.1.0000000008048000.0000000008051000.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: mal52.linELF@0/0@0/0

Source: /usr/bin/dash (PID: 6236)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.8PqsqQ8pJC /tmp/tmp.7JksnXmAZm /tmp/tmp.Vt6LQeX4Jz			Jump to behavior
Source: /usr/bin/dash (PID: 6237)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.8PqsqQ8pJC /tmp/tmp.7JksnXmAZm /tmp/tmp.Vt6LQeX4Jz			Jump to behavior

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	1 File Deletion	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

Hide Legend

Legend:

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

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
x86.elf	11%	ReversingLabs	Linux.Trojan.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	arm7.elf	Get hash	malicious	Unknown	Browse
	arm6.elf	Get hash	malicious	Unknown	Browse
	mpsl.elf	Get hash	malicious	Unknown	Browse
	sh4.elf	Get hash	malicious	Unknown	Browse
	harm.elf	Get hash	malicious	Unknown	Browse
	arm7.elf	Get hash	malicious	Unknown	Browse
	mpsl.elf	Get hash	malicious	Unknown	Browse
	x86.elf	Get hash	malicious	Unknown	Browse
	ppc.elf	Get hash	malicious	Unknown	Browse
	arm.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	arm7.elf	Get hash	malicious	Unknown	Browse
	45.11.229.95-boatnet.arc-2025-01-19T02_22_30.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	Kloki.mpsl.elf	Get hash	malicious	Unknown	Browse
	sh4.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	Kloki.arm6.elf	Get hash	malicious	Unknown	Browse
	loki.x86.elf	Get hash	malicious	Unknown	Browse
	Kloki.mips.elf	Get hash	malicious	Unknown	Browse
	loki.arm7.elf	Get hash	malicious	Mirai	Browse
91.189.91.42	arm7.elf	Get hash	malicious	Unknown	Browse
	45.11.229.95-boatnet.x86-2025-01-19T02_22_29.elf	Get hash	malicious	Mirai	Browse
	45.11.229.95-boatnet.arc-2025-01-19T02_22_30.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	Kloki.mpsl.elf	Get hash	malicious	Unknown	Browse
	sh4.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	Kloki.arm4.elf	Get hash	malicious	Unknown	Browse
	Kloki.arm6.elf	Get hash	malicious	Unknown	Browse
	loki.x86.elf	Get hash	malicious	Unknown	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
RAINBOW-HKRainbownetworklimitedHK	arm7.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
	sh4.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	harm.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	arm7.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	mpsl.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	x86.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	ppc.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	arm.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
CANONICAL-ASGB	arm7.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	45.11.229.95-boatnet.x86-2025-01-19T02_22_29.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	45.11.229.95-boatnet.arc-2025-01-19T02_22_30.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	Kloki.mpsl.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sh4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	Kloki.arm4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	Kloki.arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	loki.x86.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
CANONICAL-ASGB	arm7.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	45.11.229.95-boatnet.x86-2025-01-19T02_22_29.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	45.11.229.95-boatnet.arc-2025-01-19T02_22_30.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	Kloki.mpsl.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sh4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	Kloki.arm4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	Kloki.arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	loki.x86.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
INIT7CH	arm7.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	45.11.229.95-boatnet.x86-2025-01-19T02_22_29.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	45.11.229.95-boatnet.arc-2025-01-19T02_22_30.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	Kloki.mpsl.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	sh4.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	Kloki.arm4.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	Kloki.arm6.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	loki.x86.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):	6.356031289814626
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:	37'764 bytes
MD5:	932a3d7aeccc1b42781d4cb6b36cebfe
SHA1:	e822ec7e9bd300baf9da5aba8d014c6c908bfea2
SHA256:	1f38834ddbb85107ca3a25282bcecfc3bd78e6ab2d78881d45118c4a7f31965b
SHA512:	f5c1780fe2a72dd69120de94fa254b0ffedfc349ba6fd0d7ba3d8d354d9e605a820e9272d508db8b580dfffe67cf0fddb59718eb46e1b7a9111f8de91c4c717b
SSDEEP:	768:lm6JG7yXDW8Hxyi3ObcvNuXQtQh/OFZ8Tg6FGTmFTs0n9l:lm6JFz7+gvNgQt0/OFZ8TZKMV9
TLSH:	F9033BC5E653D3F9C85B02F810A6F3BB2735E83A22F9CB8FE3C4D55BA8126605947146
File Content Preview:	.ELF........................4...T.......4. ...(.....................<...<...............<...<...<........6..........................................Q.td............................U..S............h........[]...$.............U......=.!...t..5..............

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:	37204
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	0x8107	0x0	0x6	AX	16
.fini	PROGBITS	0x80501d7	0x81d7	0x17	0x0	0x6	AX	1
.rodata	PROGBITS	0x80501f0	0x81f0	0x74c	0x0	0x2	A	4
.eh_frame	PROGBITS	0x805193c	0x893c	0x54c	0x0	0x3	WA	4
.tbss	NOBITS	0x8051e88	0x8e88	0x8	0x0	0x403	WAT	4
.ctors	PROGBITS	0x8051e88	0x8e88	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x8051e90	0x8e90	0x8	0x0	0x3	WA	4
.jcr	PROGBITS	0x8051e98	0x8e98	0x4	0x0	0x3	WA	4
.got.plt	PROGBITS	0x8051e9c	0x8e9c	0xc	0x4	0x3	WA	4
.data	PROGBITS	0x8051ec0	0x8ec0	0x238	0x0	0x3	WA	32
.bss	NOBITS	0x8052100	0x90f8	0x2ee4	0x0	0x3	WA	32
.shstrtab	STRTAB	0x0	0x90f8	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	0x893c	0x893c	6.4095	0x5	R E	0x1000	.init .text .fini .rodata
LOAD	0x893c	0x805193c	0x805193c	0x7bc	0x36a8	4.7004	0x6	RW	0x1000	.eh_frame .tbss .ctors .dtors .jcr .got.plt .data .bss
TLS	0x8e88	0x8051e88	0x8051e88	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: 12
• 5683 undefined
• 443 (HTTPS)
• 80 (HTTP)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jan 19, 2025 05:42:49.931457043 CET	48744	5683	192.168.2.23	85.239.34.134
Jan 19, 2025 05:42:49.936572075 CET	5683	48744	85.239.34.134	192.168.2.23
Jan 19, 2025 05:42:49.936645031 CET	48744	5683	192.168.2.23	85.239.34.134
Jan 19, 2025 05:42:51.005445004 CET	43928	443	192.168.2.23	91.189.91.42
Jan 19, 2025 05:42:56.636996984 CET	42836	443	192.168.2.23	91.189.91.43
Jan 19, 2025 05:42:57.916604996 CET	42516	80	192.168.2.23	109.202.202.202
Jan 19, 2025 05:43:00.181580067 CET	48744	5683	192.168.2.23	85.239.34.134
Jan 19, 2025 05:43:00.187266111 CET	5683	48744	85.239.34.134	192.168.2.23
Jan 19, 2025 05:43:00.187391996 CET	48744	5683	192.168.2.23	85.239.34.134
Jan 19, 2025 05:43:12.250614882 CET	43928	443	192.168.2.23	91.189.91.42
Jan 19, 2025 05:43:22.489272118 CET	42836	443	192.168.2.23	91.189.91.43
Jan 19, 2025 05:43:28.632467985 CET	42516	80	192.168.2.23	109.202.202.202
Jan 19, 2025 05:43:53.204807043 CET	43928	443	192.168.2.23	91.189.91.42
Jan 19, 2025 05:44:13.681952953 CET	42836	443	192.168.2.23	91.189.91.43

System Behavior

Analysis Process: dash PID: 6236, Parent PID: 4336

General

Start time (UTC):	04:42:46
Start date (UTC):	19/01/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6236, Parent PID: 4336

General

Start time (UTC):	04:42:46
Start date (UTC):	19/01/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.8PqsqQ8pJC /tmp/tmp.7JksnXmAZm /tmp/tmp.Vt6LQeX4Jz
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Analysis Process: dash PID: 6237, Parent PID: 4336

General

Start time (UTC):	04:42:46
Start date (UTC):	19/01/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6237, Parent PID: 4336

General

Start time (UTC):	04:42:46
Start date (UTC):	19/01/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.8PqsqQ8pJC /tmp/tmp.7JksnXmAZm /tmp/tmp.Vt6LQeX4Jz
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Analysis Process: x86.elf PID: 6265, Parent PID: 6163

General

Start time (UTC):	04:42:48
Start date (UTC):	19/01/2025
Path:	/tmp/x86.elf
Arguments:	/tmp/x86.elf
File size:	37764 bytes
MD5 hash:	932a3d7aeccc1b42781d4cb6b36cebfe

Process Activities

Process Forked

Chronological Activities

Analysis Process: x86.elf PID: 6266, Parent PID: 6265

General

Start time (UTC):	04:42:48
Start date (UTC):	19/01/2025
Path:	/tmp/x86.elf
Arguments:	-
File size:	37764 bytes
MD5 hash:	932a3d7aeccc1b42781d4cb6b36cebfe

Description:	Adversaries may delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary (ex: Ingress Tool Transfer ) may leave traces to indicate to what was done within a network and how. Removal of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary's footprint.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Deletion
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

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

Persistence and Installation Behavior

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

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: dash PID: 6236, Parent PID: 4336

General

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6236, Parent PID: 4336

General

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Analysis Process: dash PID: 6237, Parent PID: 4336

General

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6237, Parent PID: 4336

General

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Analysis Process: x86.elf PID: 6265, Parent PID: 6163

General

Linux Analysis Report
x86.elf