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Linux Analysis Report
na.elf

Overview

General Information

Sample name:	na.elf
Analysis ID:	1527154
MD5:	81dd71e9f03de8f7b5d7bd0066e9c205
SHA1:	0edf3d61c024022d383bfc979bb975baa97eb8da
SHA256:	f10799c82050872254a29aa22acbb636db36d6a2d9c48311bbb4f6c6ac8ccf84
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	72
Range:	0 - 100
Whitelisted:	false

Signatures

Antivirus / Scanner detection for submitted sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Machine Learning detection for sample

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

Enumerates processes within the "proc" file system

Reads system information from the proc file system

Sample contains strings that are user agent strings indicative of HTTP manipulation

Sample has stripped symbol table

Sample tries to kill a process (SIGKILL)

Yara signature match

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1527154
Start date and time:	2024-10-06 21:30:15 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 43s
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.linELF@0/1@0/0

Warnings

Skipping network analysis since amount of network traffic is too extensive
VT rate limit hit for: na.elf

Runtime Messages

Command:	/tmp/na.elf
PID:	5519
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	eshay
Standard Error:

Process Tree

system is lnxubuntu20

na.elf (PID: 5519, Parent: 5445, MD5: 81dd71e9f03de8f7b5d7bd0066e9c205) Arguments: /tmp/na.elf

na.elf New Fork (PID: 5521, Parent: 5519)

na.elf New Fork (PID: 5522, Parent: 5519)

na.elf New Fork (PID: 5561, Parent: 5519)

na.elf New Fork (PID: 5562, Parent: 5561)

na.elf New Fork (PID: 5575, Parent: 5562)

udisksd New Fork (PID: 5533, Parent: 803)

dumpe2fs (PID: 5533, Parent: 803, MD5: 5c66f7d8f7681a40562cf049ad4b72b4) Arguments: dumpe2fs -h /dev/dm-0

udisksd New Fork (PID: 5601, Parent: 803)

dumpe2fs (PID: 5601, Parent: 803, MD5: 5c66f7d8f7681a40562cf049ad4b72b4) Arguments: dumpe2fs -h /dev/dm-0

udisksd New Fork (PID: 5603, Parent: 803)

dumpe2fs (PID: 5603, Parent: 803, MD5: 5c66f7d8f7681a40562cf049ad4b72b4) Arguments: dumpe2fs -h /dev/dm-0

udisksd New Fork (PID: 5604, Parent: 803)

dumpe2fs (PID: 5604, Parent: 803, MD5: 5c66f7d8f7681a40562cf049ad4b72b4) Arguments: dumpe2fs -h /dev/dm-0

gnome-session-binary New Fork (PID: 5660, Parent: 1498)

sh (PID: 5660, Parent: 1498, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: /bin/sh -e -u -c "export GIO_LAUNCHED_DESKTOP_FILE_PID=$$; exec \"$@\"" sh /usr/bin/gnome-shell

gnome-shell (PID: 5660, Parent: 1498, MD5: da7a257239677622fe4b3a65972c9e87) Arguments: /usr/bin/gnome-shell

gnome-session-binary New Fork (PID: 5663, Parent: 1498)

sh (PID: 5663, Parent: 1498, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: /bin/sh -e -u -c "export GIO_LAUNCHED_DESKTOP_FILE_PID=$$; exec \"$@\"" sh /usr/libexec/gsd-sharing

gsd-sharing (PID: 5663, Parent: 1498, MD5: e29d9025d98590fbb69f89fdbd4438b3) Arguments: /usr/libexec/gsd-sharing

gdm3 New Fork (PID: 5667, Parent: 1333)

Default (PID: 5667, Parent: 1333, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: /etc/gdm3/PrimeOff/Default

gdm3 New Fork (PID: 5688, Parent: 1333)

Default (PID: 5688, Parent: 1333, MD5: 1e6b1c887c59a315edb7eb9a315fc84c) Arguments: /etc/gdm3/PrimeOff/Default

systemd New Fork (PID: 5694, Parent: 1)

systemd-user-runtime-dir (PID: 5694, Parent: 1, MD5: d55f4b0847f88131dbcfb07435178e54) Arguments: /lib/systemd/systemd-user-runtime-dir stop 127

cleanup

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
na.elf	Linux_Trojan_Mirai_389ee3e9	unknown	unknown	0xa64d:$a: 89 45 00 EB 2C 8B 4B 04 8B 13 8B 7B 18 8B 01 01 02 8B 02 83
na.elf	Linux_Trojan_Mirai_cc93863b	unknown	unknown	0x8e23:$a: C3 57 8B 44 24 0C 8B 4C 24 10 8B 7C 24 08 F3 AA 8B 44 24 08

Memory Dumps

Source	Rule	Description	Author	Strings
5519.1.0000000008048000.0000000008058000.r-x.sdmp	Linux_Trojan_Mirai_389ee3e9	unknown	unknown	0xa64d:$a: 89 45 00 EB 2C 8B 4B 04 8B 13 8B 7B 18 8B 01 01 02 8B 02 83
5519.1.0000000008048000.0000000008058000.r-x.sdmp	Linux_Trojan_Mirai_cc93863b	unknown	unknown	0x8e23:$a: C3 57 8B 44 24 0C 8B 4C 24 10 8B 7C 24 08 F3 AA 8B 44 24 08
5575.1.0000000008048000.0000000008058000.r-x.sdmp	Linux_Trojan_Mirai_389ee3e9	unknown	unknown	0xa64d:$a: 89 45 00 EB 2C 8B 4B 04 8B 13 8B 7B 18 8B 01 01 02 8B 02 83
5575.1.0000000008048000.0000000008058000.r-x.sdmp	Linux_Trojan_Mirai_cc93863b	unknown	unknown	0x8e23:$a: C3 57 8B 44 24 0C 8B 4C 24 10 8B 7C 24 08 F3 AA 8B 44 24 08

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: na.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: na.elf

ReversingLabs: Detection: 28%

Machine Learning detection for sample

Source: na.elf

Joe Sandbox ML: detected

System Summary

Malicious sample detected (through community Yara rule)

Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: 5519.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: 5519.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: 5575.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: 5575.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown

Source: ELF static info symbol of initial sample

.symtab present: no

Source: /tmp/na.elf (PID: 5521)	SIGKILL sent: pid: 1553, result: successful	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	SIGKILL sent: pid: 1659, result: successful	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	SIGKILL sent: pid: 5660, result: successful	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	SIGKILL sent: pid: 5663, result: successful	Jump to behavior

Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_389ee3e9 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 59f2359dc1f41d385d639d157b4cd9fc73d76d8abb7cc09d47632bb4c9a39e6e, id = 389ee3e9-70c1-4c93-a999-292cf6ff1652, last_modified = 2022-01-26
Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_cc93863b reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f3ecd30f0b511a8e92cfa642409d559e7612c3f57a1659ca46c77aca809a00ac, id = cc93863b-1050-40ba-9d02-5ec9ce6a3a28, last_modified = 2022-01-26
Source: 5519.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_389ee3e9 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 59f2359dc1f41d385d639d157b4cd9fc73d76d8abb7cc09d47632bb4c9a39e6e, id = 389ee3e9-70c1-4c93-a999-292cf6ff1652, last_modified = 2022-01-26
Source: 5519.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_cc93863b reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f3ecd30f0b511a8e92cfa642409d559e7612c3f57a1659ca46c77aca809a00ac, id = cc93863b-1050-40ba-9d02-5ec9ce6a3a28, last_modified = 2022-01-26
Source: 5575.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_389ee3e9 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 59f2359dc1f41d385d639d157b4cd9fc73d76d8abb7cc09d47632bb4c9a39e6e, id = 389ee3e9-70c1-4c93-a999-292cf6ff1652, last_modified = 2022-01-26
Source: 5575.1.0000000008048000.0000000008058000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_cc93863b reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f3ecd30f0b511a8e92cfa642409d559e7612c3f57a1659ca46c77aca809a00ac, id = cc93863b-1050-40ba-9d02-5ec9ce6a3a28, last_modified = 2022-01-26

Source: classification engine

Classification label: mal72.troj.linELF@0/1@0/0

Persistence and Installation Behavior

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

Source: /tmp/na.elf (PID: 5519)

File: /proc/5519/mounts

Jump to behavior

Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5660/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5663/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3241/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3483/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1732/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1333/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1695/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3235/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3234/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5533/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5654/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5655/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1617/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1615/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/917/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5670/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5671/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5672/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5673/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5674/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5675/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3255/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3253/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1591/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3252/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3251/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3250/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1623/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1588/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3249/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/764/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3368/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1585/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3246/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3488/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/766/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/800/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/888/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/802/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1509/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5667/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/803/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5668/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/804/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5669/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1867/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3407/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5680/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5681/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5682/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5683/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5684/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5685/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5686/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1484/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/490/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1514/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5717/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5718/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1479/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5719/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3379/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/777/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/931/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1595/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5676/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/658/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/779/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/812/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/933/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5677/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5678/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5679/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3419/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5694/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5695/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5696/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5697/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5730/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3310/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3275/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3274/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3273/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3394/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3272/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5728/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/782/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5729/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3303/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1762/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/3027/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1486/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/789/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5687/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5720/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5721/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5601/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/1806/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5722/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5723/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5603/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5724/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5604/cmdline	Jump to behavior
Source: /tmp/na.elf (PID: 5521)	File opened: /proc/5725/cmdline	Jump to behavior

Source: /tmp/na.elf (PID: 5575)

Reads from proc file: /proc/stat

Jump to behavior

Source: Initial sample	User agent string found: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36
Source: Initial sample	User agent string found: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36
Source: Initial sample	User agent string found: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36
Source: Initial sample	User agent string found: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36
Source: Initial sample	User agent string found: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/601.7.7 (KHTML, like Gecko) Version/9.1.2 Safari/601.7.7

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 Data Obfuscation	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	1 System Information Discovery	Remote Desktop Protocol	Data from Removable Media	Junk Data	Exfiltration Over Bluetooth	Network Denial of Service

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

Thumbnails

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Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label
na.elf	29%	ReversingLabs	Linux.Backdoor.Mirai
na.elf	100%	Avira	EXP/ELF.Mirai.Bot.Hua.d
na.elf	100%	Joe Sandbox ML

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

World Map of Contacted IPs

⊘No contacted IP infos

Joe Sandbox View / Context

IPs

⊘No context

Domains

⊘No context

ASNs

⊘No context

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

/run/user/127/dconf/user

Download File

Process:	/usr/libexec/gsd-sharing
File Type:	very short file (no magic)
Category:	dropped
Size (bytes):	1
Entropy (8bit):	0.0
Encrypted:	false
SSDEEP:	3::
MD5:	93B885ADFE0DA089CDF634904FD59F71
SHA1:	5BA93C9DB0CFF93F52B521D7420E43F6EDA2784F
SHA-256:	6E340B9CFFB37A989CA544E6BB780A2C78901D3FB33738768511A30617AFA01D
SHA-512:	B8244D028981D693AF7B456AF8EFA4CAD63D282E19FF14942C246E50D9351D22704A802A71C3580B6370DE4CEB293C324A8423342557D4E5C38438F0E36910EE
Malicious:	false
Reputation:	high, very likely benign file
Preview:	.

Static File Info

General

File type:	ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.563015313506456
TrID:	ELF Executable and Linkable format (Linux) (4029/14) 50.16% ELF Executable and Linkable format (generic) (4004/1) 49.84%
File name:	na.elf
File size:	62'816 bytes
MD5:	81dd71e9f03de8f7b5d7bd0066e9c205
SHA1:	0edf3d61c024022d383bfc979bb975baa97eb8da
SHA256:	f10799c82050872254a29aa22acbb636db36d6a2d9c48311bbb4f6c6ac8ccf84
SHA512:	eb4c29e66bebe5ebd9f691babc228faf7d904e9a57dd5226f43c3fa70a979622208e66c5a37d3f0595ac184411a4f1da9ebc8fbfcbfd7ca99e6582568b487224
SSDEEP:	1536:WOAdzrxaedED0wAcrQZNSCSTsYi7IlUvanvimH8WSzm:WOA9tzdED0wAcUZULs7IWSvhH8q
TLSH:	A9537CC19B82D9F5ED4701B1203B63128B73E57A9139FB93CB9A3831EE12701961B79D
File Content Preview:	.ELF....................d...4...........4. ...(..........................................................8..........Q.td............................U..S.......7....h....3...[]...$.............U......=.....t..5...................u........t....h.p..........

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	Intel 80386
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x8048164
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	62416
Section Header Size:	40
Number of Section Headers:	10
Header String Table Index:	9

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x8048094	0x94	0x1c	0x0	0x6	AX	1
.text	PROGBITS	0x80480b0	0xb0	0xd456	0x0	0x6	AX	16
.fini	PROGBITS	0x8055506	0xd506	0x17	0x0	0x6	AX	1
.rodata	PROGBITS	0x8055520	0xd520	0x1b9c	0x0	0x2	A	32
.ctors	PROGBITS	0x80580c0	0xf0c0	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x80580c8	0xf0c8	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x80580e0	0xf0e0	0x2b0	0x0	0x3	WA	32
.bss	NOBITS	0x80583a0	0xf390	0x3520	0x0	0x3	WA	32
.shstrtab	STRTAB	0x0	0xf390	0x3e	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x8048000	0x8048000	0xf0bc	0xf0bc	6.5964	0x5	R E	0x1000	.init .text .fini .rodata
LOAD	0xf0c0	0x80580c0	0x80580c0	0x2d0	0x3800	3.6341	0x6	RW	0x1000	.ctors .dtors .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

⊘Skipped network analysis since the amount of network traffic is too extensive. Please download the PCAP and check manually.

System Behavior

Analysis Process: na.elf PID: 5519, Parent PID: 5445

General

Start time (UTC):	19:30:55
Start date (UTC):	06/10/2024
Path:	/tmp/na.elf
Arguments:	/tmp/na.elf
File size:	62816 bytes
MD5 hash:	81dd71e9f03de8f7b5d7bd0066e9c205

Chronological Activities

Analysis Process: na.elf PID: 5521, Parent PID: 5519

General

Start time (UTC):	19:30:55
Start date (UTC):	06/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	62816 bytes
MD5 hash:	81dd71e9f03de8f7b5d7bd0066e9c205

Chronological Activities

Analysis Process: na.elf PID: 5522, Parent PID: 5519

General

Start time (UTC):	19:30:55
Start date (UTC):	06/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	62816 bytes
MD5 hash:	81dd71e9f03de8f7b5d7bd0066e9c205

Chronological Activities

Analysis Process: na.elf PID: 5561, Parent PID: 5519

General

Start time (UTC):	19:30:56
Start date (UTC):	06/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	62816 bytes
MD5 hash:	81dd71e9f03de8f7b5d7bd0066e9c205

Chronological Activities

Analysis Process: na.elf PID: 5562, Parent PID: 5561

General

Start time (UTC):	19:30:56
Start date (UTC):	06/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	62816 bytes
MD5 hash:	81dd71e9f03de8f7b5d7bd0066e9c205

Chronological Activities

Analysis Process: na.elf PID: 5575, Parent PID: 5562

General

Start time (UTC):	19:30:56
Start date (UTC):	06/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	62816 bytes
MD5 hash:	81dd71e9f03de8f7b5d7bd0066e9c205

Chronological Activities

Analysis Process: udisksd PID: 5533, Parent PID: 803

General

Start time (UTC):	19:30:55
Start date (UTC):	06/10/2024
Path:	/usr/lib/udisks2/udisksd
Arguments:	-
File size:	483056 bytes
MD5 hash:	1d7ae439cc3d82fa6b127671ce037a24

Chronological Activities

Analysis Process: dumpe2fs PID: 5533, Parent PID: 803

General

Start time (UTC):	19:30:55
Start date (UTC):	06/10/2024
Path:	/usr/sbin/dumpe2fs
Arguments:	dumpe2fs -h /dev/dm-0
File size:	31112 bytes
MD5 hash:	5c66f7d8f7681a40562cf049ad4b72b4

Chronological Activities

Analysis Process: udisksd PID: 5601, Parent PID: 803

General

Start time (UTC):	19:30:56
Start date (UTC):	06/10/2024
Path:	/usr/lib/udisks2/udisksd
Arguments:	-
File size:	483056 bytes
MD5 hash:	1d7ae439cc3d82fa6b127671ce037a24

Chronological Activities

Analysis Process: dumpe2fs PID: 5601, Parent PID: 803

General

Start time (UTC):	19:30:56
Start date (UTC):	06/10/2024
Path:	/usr/sbin/dumpe2fs
Arguments:	dumpe2fs -h /dev/dm-0
File size:	31112 bytes
MD5 hash:	5c66f7d8f7681a40562cf049ad4b72b4

Chronological Activities

Analysis Process: udisksd PID: 5603, Parent PID: 803

General

Start time (UTC):	19:30:56
Start date (UTC):	06/10/2024
Path:	/usr/lib/udisks2/udisksd
Arguments:	-
File size:	483056 bytes
MD5 hash:	1d7ae439cc3d82fa6b127671ce037a24

Chronological Activities

Analysis Process: dumpe2fs PID: 5603, Parent PID: 803

General

Start time (UTC):	19:30:56
Start date (UTC):	06/10/2024
Path:	/usr/sbin/dumpe2fs
Arguments:	dumpe2fs -h /dev/dm-0
File size:	31112 bytes
MD5 hash:	5c66f7d8f7681a40562cf049ad4b72b4

Chronological Activities

Analysis Process: udisksd PID: 5604, Parent PID: 803

General

Start time (UTC):	19:30:56
Start date (UTC):	06/10/2024
Path:	/usr/lib/udisks2/udisksd
Arguments:	-
File size:	483056 bytes
MD5 hash:	1d7ae439cc3d82fa6b127671ce037a24

Chronological Activities

Analysis Process: dumpe2fs PID: 5604, Parent PID: 803

General

Start time (UTC):	19:30:56
Start date (UTC):	06/10/2024
Path:	/usr/sbin/dumpe2fs
Arguments:	dumpe2fs -h /dev/dm-0
File size:	31112 bytes
MD5 hash:	5c66f7d8f7681a40562cf049ad4b72b4

Chronological Activities

Analysis Process: gnome-session-binary PID: 5660, Parent PID: 1498

General

Start time (UTC):	19:31:25
Start date (UTC):	06/10/2024
Path:	/usr/libexec/gnome-session-binary
Arguments:	-
File size:	334664 bytes
MD5 hash:	d9b90be4f7db60cb3c2d3da6a1d31bfb

Chronological Activities

Analysis Process: sh PID: 5660, Parent PID: 1498

General

Start time (UTC):	19:31:25
Start date (UTC):	06/10/2024
Path:	/bin/sh
Arguments:	/bin/sh -e -u -c "export GIO_LAUNCHED_DESKTOP_FILE_PID=$$; exec \"$@\"" sh /usr/bin/gnome-shell
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: gnome-shell PID: 5660, Parent PID: 1498

General

Start time (UTC):	19:31:25
Start date (UTC):	06/10/2024
Path:	/usr/bin/gnome-shell
Arguments:	/usr/bin/gnome-shell
File size:	23168 bytes
MD5 hash:	da7a257239677622fe4b3a65972c9e87

Chronological Activities

Analysis Process: gnome-session-binary PID: 5663, Parent PID: 1498

General

Start time (UTC):	19:31:25
Start date (UTC):	06/10/2024
Path:	/usr/libexec/gnome-session-binary
Arguments:	-
File size:	334664 bytes
MD5 hash:	d9b90be4f7db60cb3c2d3da6a1d31bfb

Chronological Activities

Analysis Process: sh PID: 5663, Parent PID: 1498

General

Start time (UTC):	19:31:25
Start date (UTC):	06/10/2024
Path:	/bin/sh
Arguments:	/bin/sh -e -u -c "export GIO_LAUNCHED_DESKTOP_FILE_PID=$$; exec \"$@\"" sh /usr/libexec/gsd-sharing
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: gsd-sharing PID: 5663, Parent PID: 1498

General

Start time (UTC):	19:31:25
Start date (UTC):	06/10/2024
Path:	/usr/libexec/gsd-sharing
Arguments:	/usr/libexec/gsd-sharing
File size:	35424 bytes
MD5 hash:	e29d9025d98590fbb69f89fdbd4438b3

Chronological Activities

Analysis Process: gdm3 PID: 5667, Parent PID: 1333

General

Start time (UTC):	19:31:26
Start date (UTC):	06/10/2024
Path:	/usr/sbin/gdm3
Arguments:	-
File size:	453296 bytes
MD5 hash:	2492e2d8d34f9377e3e530a61a15674f

Chronological Activities

Analysis Process: Default PID: 5667, Parent PID: 1333

General

Start time (UTC):	19:31:26
Start date (UTC):	06/10/2024
Path:	/etc/gdm3/PrimeOff/Default
Arguments:	/etc/gdm3/PrimeOff/Default
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: gdm3 PID: 5688, Parent PID: 1333

General

Start time (UTC):	19:31:26
Start date (UTC):	06/10/2024
Path:	/usr/sbin/gdm3
Arguments:	-
File size:	453296 bytes
MD5 hash:	2492e2d8d34f9377e3e530a61a15674f

Chronological Activities

Analysis Process: Default PID: 5688, Parent PID: 1333

General

Start time (UTC):	19:31:26
Start date (UTC):	06/10/2024
Path:	/etc/gdm3/PrimeOff/Default
Arguments:	/etc/gdm3/PrimeOff/Default
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: systemd PID: 5694, Parent PID: 1

General

Start time (UTC):	19:31:36
Start date (UTC):	06/10/2024
Path:	/usr/lib/systemd/systemd
Arguments:	-
File size:	1620224 bytes
MD5 hash:	9b2bec7092a40488108543f9334aab75

Chronological Activities

Analysis Process: systemd-user-runtime-dir PID: 5694, Parent PID: 1

General

Start time (UTC):	19:31:36
Start date (UTC):	06/10/2024
Path:	/lib/systemd/systemd-user-runtime-dir
Arguments:	/lib/systemd/systemd-user-runtime-dir stop 127
File size:	22672 bytes
MD5 hash:	d55f4b0847f88131dbcfb07435178e54

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:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information 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:	IaaS, Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may obfuscate command and control traffic to make it more difficult to detect. Command and control (C2) communications are hidden (but not necessarily encrypted) in an attempt to make the content more difficult to discover or decipher and to make the communication less conspicuous and hide commands from being seen. This encompasses many methods, such as adding junk data to protocol traffic, using steganography, or impersonating legitimate protocols.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content
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

System Summary

Persistence and Installation Behavior

Stealing of Sensitive Information

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

World Map of Contacted IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

/run/user/127/dconf/user

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

System Behavior

Analysis Process: na.elf PID: 5519, Parent PID: 5445

General

Chronological Activities

Analysis Process: na.elf PID: 5521, Parent PID: 5519

General

Chronological Activities

Analysis Process: na.elf PID: 5522, Parent PID: 5519

General

Chronological Activities

Analysis Process: na.elf PID: 5561, Parent PID: 5519

General

Chronological Activities

Analysis Process: na.elf PID: 5562, Parent PID: 5561

General

Chronological Activities

Analysis Process: na.elf PID: 5575, Parent PID: 5562

General

Chronological Activities

Analysis Process: udisksd PID: 5533, Parent PID: 803

General

Chronological Activities

Analysis Process: dumpe2fs PID: 5533, Parent PID: 803

General

Chronological Activities

Analysis Process: udisksd PID: 5601, Parent PID: 803

Linux Analysis Report
na.elf