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Linux Analysis Report
na.elf

Overview

General Information

Sample name:	na.elf
Analysis ID:	1616917
MD5:	165f9c011ff7cc83315b9c0a2e4ff1d5
SHA1:	810be7662716f81a84d8ce771b09812b594382f6
SHA256:	8b2a2c95224cb7ddf7e91c5afa16b5c2acf4623908a68601bcad493679ceb18b
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	72
Range:	0 - 100

Signatures

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Connects to many ports of the same IP (likely port scanning)

Performs DNS TXT record lookups

Sample reads /proc/mounts (often used for finding a writable filesystem)

Uses STUN server to do NAT traversial

Detected TCP or UDP traffic on non-standard ports

Enumerates processes within the "proc" file system

Sample has stripped symbol table

Sample listens on a socket

Yara signature match

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1616917
Start date and time:	2025-02-17 10:57:15 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 5m 0s
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:	na.elf
Detection:	MAL
Classification:	mal72.troj.evad.linELF@0/0@4/0

Warnings

VT rate limit hit for: lib.libre

Runtime Messages

Command:	/tmp/na.elf
PID:	5437
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life
Standard Error:

Process Tree

system is lnxubuntu20

na.elf (PID: 5437, Parent: 5360, MD5: 165f9c011ff7cc83315b9c0a2e4ff1d5) Arguments: /tmp/na.elf

na.elf New Fork (PID: 5441, Parent: 5437)

na.elf New Fork (PID: 5442, Parent: 5437)

na.elf New Fork (PID: 5464, Parent: 5437)

cleanup

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
na.elf	Linux_Trojan_Gafgyt_9e9530a7	unknown	unknown	0xb2ac:$a: F6 48 63 FF B8 36 00 00 00 0F 05 48 3D 00 F0 FF FF 48 89 C3
na.elf	Linux_Trojan_Gafgyt_807911a2	unknown	unknown	0xba9b:$a: FE 48 39 F3 0F 94 C2 48 83 F9 FF 0F 94 C0 84 D0 74 16 4B 8D
na.elf	Linux_Trojan_Gafgyt_d4227dbf	unknown	unknown	0x7dd6:$a: FF 48 81 EC D0 00 00 00 48 8D 84 24 E0 00 00 00 48 89 54 24 30 C7 04 24 18 00 0x7f38:$a: FF 48 81 EC D0 00 00 00 48 8D 84 24 E0 00 00 00 48 89 54 24 30 C7 04 24 18 00
na.elf	Linux_Trojan_Gafgyt_d996d335	unknown	unknown	0xe08a:$a: D0 EB 0F 40 38 37 75 04 48 89 F8 C3 49 FF C8 48 FF C7 4D 85 C0
na.elf	Linux_Trojan_Gafgyt_620087b9	unknown	unknown	0xb65b:$a: 48 89 D8 48 83 C8 01 EB 04 48 8B 76 10 48 3B 46 08 72 F6 48 8B
na.elf	Linux_Trojan_Gafgyt_33b4111a	unknown	unknown	0xb926:$a: C1 83 E1 0F 74 1A B8 10 00 00 00 48 29 C8 48 8D 0C 02 48 89 DA 48
na.elf	Linux_Trojan_Mirai_1cb033f3	unknown	unknown	0x4152:$a: C3 EB 06 8A 46 FF 88 47 FF FF CA 48 FF C7 48 FF C6 83 FA FF 0x42ce:$a: C3 EB 06 8A 46 FF 88 47 FF FF CA 48 FF C7 48 FF C6 83 FA FF
Click to see the 2 entries

Memory Dumps

Source	Rule	Description	Author	Strings
5437.1.0000000000400000.0000000000411000.r-x.sdmp	Linux_Trojan_Gafgyt_9e9530a7	unknown	unknown	0xb2ac:$a: F6 48 63 FF B8 36 00 00 00 0F 05 48 3D 00 F0 FF FF 48 89 C3
5437.1.0000000000400000.0000000000411000.r-x.sdmp	Linux_Trojan_Gafgyt_807911a2	unknown	unknown	0xba9b:$a: FE 48 39 F3 0F 94 C2 48 83 F9 FF 0F 94 C0 84 D0 74 16 4B 8D
5437.1.0000000000400000.0000000000411000.r-x.sdmp	Linux_Trojan_Gafgyt_d4227dbf	unknown	unknown	0x7dd6:$a: FF 48 81 EC D0 00 00 00 48 8D 84 24 E0 00 00 00 48 89 54 24 30 C7 04 24 18 00 0x7f38:$a: FF 48 81 EC D0 00 00 00 48 8D 84 24 E0 00 00 00 48 89 54 24 30 C7 04 24 18 00
5437.1.0000000000400000.0000000000411000.r-x.sdmp	Linux_Trojan_Gafgyt_d996d335	unknown	unknown	0xe08a:$a: D0 EB 0F 40 38 37 75 04 48 89 F8 C3 49 FF C8 48 FF C7 4D 85 C0
5437.1.0000000000400000.0000000000411000.r-x.sdmp	Linux_Trojan_Gafgyt_620087b9	unknown	unknown	0xb65b:$a: 48 89 D8 48 83 C8 01 EB 04 48 8B 76 10 48 3B 46 08 72 F6 48 8B
5437.1.0000000000400000.0000000000411000.r-x.sdmp	Linux_Trojan_Gafgyt_33b4111a	unknown	unknown	0xb926:$a: C1 83 E1 0F 74 1A B8 10 00 00 00 48 29 C8 48 8D 0C 02 48 89 DA 48
5437.1.0000000000400000.0000000000411000.r-x.sdmp	Linux_Trojan_Mirai_1cb033f3	unknown	unknown	0x4152:$a: C3 EB 06 8A 46 FF 88 47 FF FF CA 48 FF C7 48 FF C6 83 FA FF 0x42ce:$a: C3 EB 06 8A 46 FF 88 47 FF FF CA 48 FF C7 48 FF C6 83 FA FF
Click to see the 2 entries

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary
• Persistence and Installation Behavior
• HIPS / PFW / Operating System Protection Evasion

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: na.elf

ReversingLabs: Detection: 21%

Networking

Connects to many ports of the same IP (likely port scanning)

Source: global traffic

TCP traffic: 64.23.188.144 ports 0,1,2,8,9,10298

Uses STUN server to do NAT traversial

Source: unknown

DNS query: name: stun.l.google.com

Source: global traffic	TCP traffic: 192.168.2.13:52778 -> 64.23.188.144:10298
Source: global traffic	UDP traffic: 192.168.2.13:54689 -> 74.125.250.129:19302

Source: /tmp/na.elf (PID: 5437)

Socket: 127.0.0.1:43478

Jump to behavior

Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	TCP traffic detected without corresponding DNS query: 64.23.188.144
Source: unknown	UDP traffic detected without corresponding DNS query: 162.243.19.47
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: lib.libre
Source: global traffic	DNS traffic detected: DNS query: stun.l.google.com
Source: global traffic	DNS traffic detected: DNS query: daisy.ubuntu.com

System Summary

Malicious sample detected (through community Yara rule)

Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_9e9530a7 Author: unknown
Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_807911a2 Author: unknown
Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_d4227dbf Author: unknown
Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_d996d335 Author: unknown
Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_620087b9 Author: unknown
Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_33b4111a Author: unknown
Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_1cb033f3 Author: unknown
Source: 5437.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_9e9530a7 Author: unknown
Source: 5437.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_807911a2 Author: unknown
Source: 5437.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_d4227dbf Author: unknown
Source: 5437.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_d996d335 Author: unknown
Source: 5437.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_620087b9 Author: unknown
Source: 5437.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_33b4111a Author: unknown
Source: 5437.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_1cb033f3 Author: unknown

Source: ELF static info symbol of initial sample

.symtab present: no

Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_9e9530a7 reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = d6ad6512051e87c8c35dc168d82edd071b122d026dce21d39b9782b3d6a01e50, id = 9e9530a7-ad4d-4a44-b764-437b7621052f, last_modified = 2021-09-16
Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_807911a2 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = f409037091b7372f5a42bbe437316bd11c655e7a5fe1fcf83d1981cb5c4a389f, id = 807911a2-f6ec-4e65-924f-61cb065dafc6, last_modified = 2021-09-16
Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_d4227dbf reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 58c4b1d4d167876b64cfa10f609911a80284180e4db093917fea16fae8ccd4e3, id = d4227dbf-6ab4-4637-a6ba-0e604acaafb4, last_modified = 2021-09-16
Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_d996d335 reference_sample = b511eacd4b44744c8cf82d1b4a9bc6f1022fe6be7c5d17356b171f727ddc6eda, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = e9ccb8412f32187c309b0e9afcc3a6da21ad2f1ffa251c27f9f720ccb284e3ac, id = d996d335-e049-4052-bf36-6cd07c911a8b, last_modified = 2021-09-16
Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_620087b9 reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 06cd7e6eb62352ec2ccb9ed48e58c0583c02fefd137cd048d053ab30b5330307, id = 620087b9-c87d-4752-89e8-ca1c16486b28, last_modified = 2021-09-16
Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_33b4111a reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 9c3b63b9a0f54006bae12abcefdb518904a85f78be573f0780f0a265b12d2d6e, id = 33b4111a-e59e-48db-9d74-34ca44fcd9f5, last_modified = 2021-09-16
Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_1cb033f3 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 49201ab37ff0b5cdfa9b0b34b6faa170bd25f04df51c24b0b558b7534fecc358, id = 1cb033f3-68c1-4fe5-9cd1-b5d066c1d86e, last_modified = 2021-09-16
Source: 5437.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_9e9530a7 reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = d6ad6512051e87c8c35dc168d82edd071b122d026dce21d39b9782b3d6a01e50, id = 9e9530a7-ad4d-4a44-b764-437b7621052f, last_modified = 2021-09-16
Source: 5437.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_807911a2 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = f409037091b7372f5a42bbe437316bd11c655e7a5fe1fcf83d1981cb5c4a389f, id = 807911a2-f6ec-4e65-924f-61cb065dafc6, last_modified = 2021-09-16
Source: 5437.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_d4227dbf reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 58c4b1d4d167876b64cfa10f609911a80284180e4db093917fea16fae8ccd4e3, id = d4227dbf-6ab4-4637-a6ba-0e604acaafb4, last_modified = 2021-09-16
Source: 5437.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_d996d335 reference_sample = b511eacd4b44744c8cf82d1b4a9bc6f1022fe6be7c5d17356b171f727ddc6eda, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = e9ccb8412f32187c309b0e9afcc3a6da21ad2f1ffa251c27f9f720ccb284e3ac, id = d996d335-e049-4052-bf36-6cd07c911a8b, last_modified = 2021-09-16
Source: 5437.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_620087b9 reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 06cd7e6eb62352ec2ccb9ed48e58c0583c02fefd137cd048d053ab30b5330307, id = 620087b9-c87d-4752-89e8-ca1c16486b28, last_modified = 2021-09-16
Source: 5437.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_33b4111a reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 9c3b63b9a0f54006bae12abcefdb518904a85f78be573f0780f0a265b12d2d6e, id = 33b4111a-e59e-48db-9d74-34ca44fcd9f5, last_modified = 2021-09-16
Source: 5437.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_1cb033f3 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 49201ab37ff0b5cdfa9b0b34b6faa170bd25f04df51c24b0b558b7534fecc358, id = 1cb033f3-68c1-4fe5-9cd1-b5d066c1d86e, last_modified = 2021-09-16

Source: classification engine

Classification label: mal72.troj.evad.linELF@0/0@4/0

Persistence and Installation Behavior

Sample reads /proc/mounts (often used for finding a writable filesystem)

Source: /tmp/na.elf (PID: 5437)	File: /proc/5437/mounts			Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File: /proc/5441/mounts			Jump to behavior

Source: /tmp/na.elf (PID: 5441)	File opened: /proc/5420/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/5420/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/5420/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/5421/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/5421/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/5421/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3122/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3122/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3122/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3117/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3117/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3117/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3114/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3114/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3114/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/914/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/914/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/914/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/917/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/917/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/917/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/5277/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/5277/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/5277/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3134/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3134/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3134/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3375/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3375/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3375/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3132/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3132/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3132/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3095/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3095/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3095/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1745/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1745/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1745/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1866/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1866/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1866/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1588/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1588/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1588/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/884/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/884/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/884/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1982/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1982/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1982/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/765/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/765/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/765/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3246/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3246/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3246/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/800/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/800/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/800/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/767/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/767/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/767/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3641/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3641/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3641/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1906/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1906/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1906/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/802/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/802/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/802/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/803/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/803/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/803/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1748/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1748/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1748/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/5442/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3420/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3420/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3420/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1482/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1482/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1482/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/490/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/490/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/490/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1480/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1480/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1480/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1755/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1755/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1755/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1875/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1875/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/1875/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/2964/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/2964/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/2964/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3413/maps	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3413/status	Jump to behavior
Source: /tmp/na.elf (PID: 5441)	File opened: /proc/3413/cmdline	Jump to behavior

HIPS / PFW / Operating System Protection Evasion

Performs DNS TXT record lookups

Source: Traffic

DNS traffic detected: queries for: lib.libre

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	1 OS Credential Dumping	1 File and Directory Discovery	Remote Services	Data from Local System	1 Non-Standard Port	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-Application Layer Protocol	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

Screenshots

Download Video

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
na.elf	22%	ReversingLabs	Linux.Backdoor.Gafgyt

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	Reputation
daisy.ubuntu.com	162.213.35.24	true	false	high
stun.l.google.com	74.125.250.129	true	false	high
lib.libre	unknown	unknown	true	unknown

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	Flag	ASN	ASN Name	Malicious
64.23.188.144	unknown	United States		3064	AFFINITY-FTLUS	true
74.125.250.129	stun.l.google.com	United States		15169	GOOGLEUS	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
64.23.188.144	i686.elf	Get hash	malicious	Unknown	Browse
64.23.188.144	na.elf	Get hash	malicious	Unknown	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	sh4.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	na.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	arm.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	armv5l.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	arm5.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	i686.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	i-5.8-6.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.25
	a-r.m-6.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.24
	a-r.m-4.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.25
	m-6.8-k.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.25

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
AFFINITY-FTLUS	i686.elf	Get hash	malicious	Unknown	Browse	64.23.188.144
	na.elf	Get hash	malicious	Unknown	Browse	64.23.188.144
	arm7.elf	Get hash	malicious	Mirai, Moobot	Browse	207.36.98.138
	arm7.elf	Get hash	malicious	Mirai, Moobot	Browse	64.159.94.16
	https://gffd-5ru.pages.dev/?email=nobody@wp.pl&mail=wp.pl	Get hash	malicious	HTMLPhisher	Browse	66.113.135.6
	sh4.elf	Get hash	malicious	Mirai, Moobot	Browse	66.232.157.134
	telnet.x86.elf	Get hash	malicious	Unknown	Browse	216.219.155.110
	powerpc.elf	Get hash	malicious	Unknown	Browse	207.234.192.3
	3.elf	Get hash	malicious	Unknown	Browse	64.157.90.120
	https://eldivan.mx/?data=c2dlcmplc0BmaXJzdGFyLWJhbmsuY29t	Get hash	malicious	HTMLPhisher	Browse	64.23.136.73

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Static File Info

General

File type:	ELF 64-bit LSB executable, x86-64, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.269628637721311
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	na.elf
File size:	71'712 bytes
MD5:	165f9c011ff7cc83315b9c0a2e4ff1d5
SHA1:	810be7662716f81a84d8ce771b09812b594382f6
SHA256:	8b2a2c95224cb7ddf7e91c5afa16b5c2acf4623908a68601bcad493679ceb18b
SHA512:	109fc0c53f66b1e007aa0ad5baff9e66c61915ee83d4ff50593ba86fc15965f401e23225be8caa6e8cc77fe2340f162fa4f2881d8986b64f541a6f9a945f4dab
SSDEEP:	1536:L4IwaYm7H0VuCryiU/wrmzTlaRabyqkiUIOlK9ov1:LeaYm7HqNyihrMERadkiU9K9ov1
TLSH:	EF636B176880C0FDC4AAD6714B6EA62BD737B07D1239B1592BD9BD2B7E5FD201F1A200
File Content Preview:	.ELF..............>.......@.....@...................@.8...@.......................@.......@...............................................Q.......Q.....`........o..............Q.td....................................................H...._........H........

Static ELF Info

ELF header
Class:	ELF64
Data:	2's complement, little endian
Version:	1 (current)
Machine:	Advanced Micro Devices X86-64
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x400194
Flags:	0x0
ELF Header Size:	64
Program Header Offset:	64
Program Header Size:	56
Number of Program Headers:	3
Section Header Offset:	71072
Section Header Size:	64
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	0x4000e8	0xe8	0x13	0x0	0x6	AX	1
.text	PROGBITS	0x400100	0x100	0xe406	0x0	0x6	AX	16
.fini	PROGBITS	0x40e506	0xe506	0xe	0x0	0x6	AX	1
.rodata	PROGBITS	0x40e520	0xe520	0x27d0	0x0	0x2	A	32
.ctors	PROGBITS	0x511000	0x11000	0x10	0x0	0x3	WA	8
.dtors	PROGBITS	0x511010	0x11010	0x10	0x0	0x3	WA	8
.data	PROGBITS	0x511040	0x11040	0x520	0x0	0x3	WA	32
.bss	NOBITS	0x511560	0x11560	0x6a88	0x0	0x3	WA	32
.shstrtab	STRTAB	0x0	0x11560	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	0x400000	0x400000	0x10cf0	0x10cf0	6.3915	0x5	R E	0x100000	.init .text .fini .rodata
LOAD	0x11000	0x511000	0x511000	0x560	0x6fe8	2.3514	0x6	RW	0x100000	.ctors .dtors .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x8

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 39
• 19302 undefined
• 10298 undefined
• 53 (DNS)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Feb 17, 2025 10:58:04.715455055 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 10:58:04.721726894 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 10:58:04.722016096 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 10:58:05.276698112 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 10:58:05.277082920 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 10:58:05.363409996 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 10:58:05.363511086 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 10:58:09.637425900 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 10:58:09.642271042 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 10:58:19.647489071 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 10:58:19.652399063 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 10:58:19.652465105 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 10:58:19.657820940 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 10:58:33.251982927 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 10:58:33.256920099 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 10:58:33.256968975 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 10:58:33.261805058 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 10:58:46.526992083 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 10:58:46.527065992 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 10:58:56.537156105 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 10:58:56.541992903 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 10:58:56.542046070 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 10:58:56.546822071 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 10:59:11.075551987 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 10:59:11.082266092 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 10:59:11.082344055 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 10:59:11.088819981 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 10:59:25.165926933 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 10:59:25.170857906 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 10:59:25.170919895 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 10:59:25.175753117 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 10:59:39.041024923 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 10:59:39.046139002 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 10:59:39.046221018 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 10:59:39.051506042 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 10:59:52.549364090 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 10:59:52.549438000 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 11:00:02.556231022 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 11:00:02.561389923 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 11:00:02.561475992 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 11:00:02.566333055 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 11:00:16.255815983 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 11:00:16.260674000 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 11:00:16.260730028 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 11:00:16.266261101 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 11:00:31.264338970 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 11:00:31.269490004 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 11:00:31.269567013 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 11:00:31.274468899 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 11:00:45.616314888 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 11:00:45.623044968 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 11:00:45.623099089 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 11:00:45.628266096 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 11:00:59.616339922 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 11:00:59.621546984 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 11:00:59.621682882 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 11:00:59.626588106 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 11:01:06.569900990 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 11:01:06.569977045 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 11:01:16.580174923 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 11:01:16.709111929 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 11:01:16.709242105 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 11:01:16.714040041 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 11:01:29.148597956 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 11:01:29.153675079 CET	10298	52778	64.23.188.144	192.168.2.13
Feb 17, 2025 11:01:29.153768063 CET	52778	10298	192.168.2.13	64.23.188.144
Feb 17, 2025 11:01:29.158601999 CET	10298	52778	64.23.188.144	192.168.2.13

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Feb 17, 2025 10:58:04.625294924 CET	34830	53	192.168.2.13	162.243.19.47
Feb 17, 2025 10:58:04.711393118 CET	53	34830	162.243.19.47	192.168.2.13
Feb 17, 2025 10:58:05.725697041 CET	55641	53	192.168.2.13	8.8.8.8
Feb 17, 2025 10:58:05.735340118 CET	53	55641	8.8.8.8	192.168.2.13
Feb 17, 2025 10:58:05.735445976 CET	54689	19302	192.168.2.13	74.125.250.129
Feb 17, 2025 10:58:06.195111036 CET	19302	54689	74.125.250.129	192.168.2.13
Feb 17, 2025 11:00:47.306750059 CET	35045	53	192.168.2.13	1.1.1.1
Feb 17, 2025 11:00:47.306794882 CET	46801	53	192.168.2.13	1.1.1.1
Feb 17, 2025 11:00:47.314429045 CET	53	35045	1.1.1.1	192.168.2.13
Feb 17, 2025 11:00:47.314532995 CET	53	46801	1.1.1.1	192.168.2.13

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Feb 17, 2025 10:58:04.625294924 CET	192.168.2.13	162.243.19.47	0xf7f9	Standard query (0)	lib.libre	16	IN (0x0001)	false
Feb 17, 2025 10:58:05.725697041 CET	192.168.2.13	8.8.8.8	0x9068	Standard query (0)	stun.l.google.com	A (IP address)	IN (0x0001)	false
Feb 17, 2025 11:00:47.306750059 CET	192.168.2.13	1.1.1.1	0x353	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Feb 17, 2025 11:00:47.306794882 CET	192.168.2.13	1.1.1.1	0x4489	Standard query (0)	daisy.ubuntu.com	28	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	Address	Type	Class	DNS over HTTPS
Feb 17, 2025 10:58:04.711393118 CET	162.243.19.47	192.168.2.13	0xf7f9	No error (0)	lib.libre		TXT (Text strings)	IN (0x0001)	false
Feb 17, 2025 10:58:05.735340118 CET	8.8.8.8	192.168.2.13	0x9068	No error (0)	stun.l.google.com	74.125.250.129	A (IP address)	IN (0x0001)	false
Feb 17, 2025 11:00:47.314429045 CET	1.1.1.1	192.168.2.13	0x353	No error (0)	daisy.ubuntu.com	162.213.35.24	A (IP address)	IN (0x0001)	false
Feb 17, 2025 11:00:47.314429045 CET	1.1.1.1	192.168.2.13	0x353	No error (0)	daisy.ubuntu.com	162.213.35.25	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: na.elf PID: 5437, Parent PID: 5360

General

Start time (UTC):	09:58:02
Start date (UTC):	17/02/2025
Path:	/tmp/na.elf
Arguments:	/tmp/na.elf
File size:	71712 bytes
MD5 hash:	165f9c011ff7cc83315b9c0a2e4ff1d5

File Activities

File Opened

File Read

File Moved

Directory Enumerated

Process Activities

Process Forked

Prctl Requested

Network Activities

Socket Listening

Socket Connecting

Chronological Activities

Analysis Process: na.elf PID: 5441, Parent PID: 5437

General

Start time (UTC):	09:58:03
Start date (UTC):	17/02/2025
Path:	/tmp/na.elf
Arguments:	-
File size:	71712 bytes
MD5 hash:	165f9c011ff7cc83315b9c0a2e4ff1d5

File Activities

File Opened

File Read

Directory Enumerated

Process Activities

Thread Sleep

Chronological Activities

Analysis Process: na.elf PID: 5442, Parent PID: 5437

General

Start time (UTC):	09:58:03
Start date (UTC):	17/02/2025
Path:	/tmp/na.elf
Arguments:	-
File size:	71712 bytes
MD5 hash:	165f9c011ff7cc83315b9c0a2e4ff1d5

File Activities

File Opened

File Read

Directory Enumerated

Process Activities

Prctl Requested

Thread Sleep

Chronological Activities

Analysis Process: na.elf PID: 5464, Parent PID: 5437

General

Start time (UTC):	09:58:03
Start date (UTC):	17/02/2025
Path:	/tmp/na.elf
Arguments:	-
File size:	71712 bytes
MD5 hash:	165f9c011ff7cc83315b9c0a2e4ff1d5

Description:	Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password, from the operating system and software. Credentials can then be used to perform Lateral Movement and access restricted information.
Tactics:	Credential Access
Data Sources:	Active Directory: Active Directory Object Access, Command: Command Execution, File: File Access, Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow, Process: OS API Execution, Process: Process Access, Process: Process Creation, Windows Registry: Windows Registry Key Access
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system. Adversaries may use the information from File and Directory Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Network, 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 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

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report na.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Yara Signatures

Initial Sample

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Persistence and Installation Behavior

HIPS / PFW / Operating System Protection Evasion

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

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: na.elf PID: 5437, Parent PID: 5360

General

File Activities

File Opened

File Read

File Moved

Directory Enumerated

Process Activities

Process Forked

Prctl Requested

Network Activities

Socket Listening

Socket Connecting

Chronological Activities

Analysis Process: na.elf PID: 5441, Parent PID: 5437

General

File Activities

File Opened

File Read

Linux Analysis Report
na.elf