Malware Analysis Report

2025-06-16 02:03

Sample ID 250222-flcsfayper
Target na.elf
SHA256 5e053aa31d60cd6cb4f818d138d606293015012809155b419bdf8c7d6cf0da87
Tags
upx prometei_elf botnet discovery miner persistence privilege_escalation
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

5e053aa31d60cd6cb4f818d138d606293015012809155b419bdf8c7d6cf0da87

Threat Level: Known bad

The file na.elf was found to be: Known bad.

Malicious Activity Summary

upx prometei_elf botnet discovery miner persistence privilege_escalation

Prometei

Prometei_elf family

Deletes itself

Modifies hosts file

Modifies systemd

Enumerates running processes

Write file to user bin folder

UPX packed file

Reads CPU attributes

Reads runtime system information

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-02-22 04:57

Signatures

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-02-22 04:57

Reported

2025-02-22 04:59

Platform

ubuntu2204-amd64-20240729-en

Max time kernel

5s

Max time network

128s

Command Line

[/tmp/na.elf]

Signatures

Prometei

botnet miner prometei_elf

Prometei_elf family

prometei_elf

Deletes itself

Description Indicator Process Target
N/A N/A /tmp/na.elf N/A

Modifies hosts file

Description Indicator Process Target
File opened for modification /etc/hosts /tmp/na.elf N/A

Enumerates running processes

Modifies systemd

persistence privilege_escalation
Description Indicator Process Target
File opened for modification /lib/systemd/system/uplugplay.service /tmp/na.elf N/A

Write file to user bin folder

persistence
Description Indicator Process Target
File opened for modification /usr/sbin/uplugplay /tmp/na.elf N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A

Reads CPU attributes

discovery
Description Indicator Process Target
File opened for reading /sys/devices/system/cpu/online /usr/bin/pgrep N/A
File opened for reading /sys/devices/system/cpu/online /usr/bin/pgrep N/A
File opened for reading /sys/devices/system/cpu/online /usr/bin/pgrep N/A

Reads runtime system information

discovery
Description Indicator Process Target
File opened for reading /proc/1129/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/159/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/639/status /usr/bin/pgrep N/A
File opened for reading /proc/209/stat /usr/bin/pidof N/A
File opened for reading /proc/1170/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/1075/stat /usr/bin/pidof N/A
File opened for reading /proc/1163/cmdline /usr/bin/pidof N/A
File opened for reading /proc/1202/stat /usr/bin/pidof N/A
File opened for reading /proc/1571/cmdline /usr/bin/pidof N/A
File opened for reading /proc/748/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/585/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/1202/status /usr/bin/pgrep N/A
File opened for reading /proc/88/stat /usr/bin/pidof N/A
File opened for reading /proc/1593/stat /usr/bin/pidof N/A
File opened for reading /proc/1152/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/870/cmdline /usr/bin/pidof N/A
File opened for reading /proc/1245/status /usr/bin/pgrep N/A
File opened for reading /proc/88/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/982/status /usr/bin/pgrep N/A
File opened for reading /proc/506/stat /usr/bin/pidof N/A
File opened for reading /proc/19/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/91/cmdline /usr/bin/pidof N/A
File opened for reading /proc/855/stat /usr/bin/pidof N/A
File opened for reading /proc/870/stat /usr/bin/pidof N/A
File opened for reading /proc/193/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/1571/status /usr/bin/pgrep N/A
File opened for reading /proc/92/cmdline /usr/bin/pidof N/A
File opened for reading /proc/1573/cmdline /usr/bin/pidof N/A
File opened for reading /proc/1191/status /usr/bin/pgrep N/A
File opened for reading /proc/24/status /usr/bin/pgrep N/A
File opened for reading /proc/26/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/1258/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/196/status /usr/bin/pgrep N/A
File opened for reading /proc/27/status /usr/bin/pgrep N/A
File opened for reading /proc/14/cmdline /usr/bin/pidof N/A
File opened for reading /proc/209/status /usr/bin/pgrep N/A
File opened for reading /proc/213/cmdline /usr/bin/pidof N/A
File opened for reading /proc/831/status /usr/bin/pgrep N/A
File opened for reading /proc/1174/status /usr/bin/pgrep N/A
File opened for reading /proc/1340/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/1107/stat /usr/bin/pidof N/A
File opened for reading /proc/2/status /usr/bin/pgrep N/A
File opened for reading /proc/1039/status /usr/bin/pgrep N/A
File opened for reading /proc/1444/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/315/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/412/status /usr/bin/pgrep N/A
File opened for reading /proc/1315/stat /usr/bin/pidof N/A
File opened for reading /proc/671/status /usr/bin/pgrep N/A
File opened for reading /proc/15/cmdline /usr/bin/pidof N/A
File opened for reading /proc/22/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/195/stat /usr/bin/pidof N/A
File opened for reading /proc/642/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/748/cmdline /usr/bin/pidof N/A
File opened for reading /proc/21/stat /usr/bin/pidof N/A
File opened for reading /proc/85/status /usr/bin/pgrep N/A
File opened for reading /proc/86/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/1163/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/96/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/78/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/1163/cmdline /usr/bin/pidof N/A
File opened for reading /proc/1375/stat /usr/bin/pidof N/A
File opened for reading /proc/6/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/21/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/1597/stat /usr/bin/pidof N/A

Processes

/tmp/na.elf

[/tmp/na.elf]

/bin/sh

[sh -c pgrep na.elf]

/usr/bin/pgrep

[pgrep na.elf]

/bin/sh

[sh -c pgrep uplugplay]

/usr/bin/pgrep

[pgrep uplugplay]

/bin/sh

[sh -c pidof uplugplay]

/usr/bin/pidof

[pidof uplugplay]

/bin/sh

[sh -c pgrep upnpsetup]

/usr/bin/pgrep

[pgrep upnpsetup]

/bin/sh

[sh -c pidof upnpsetup]

/usr/bin/pidof

[pidof upnpsetup]

/bin/sh

[sh -c systemctl daemon-reload]

/usr/bin/systemctl

[systemctl daemon-reload]

/bin/sh

[sh -c systemctl enable uplugplay.service]

/usr/bin/systemctl

[systemctl enable uplugplay.service]

/bin/sh

[sh -c systemctl start uplugplay.service]

/usr/bin/systemctl

[systemctl start uplugplay.service]

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 8.8.8.8:53 p3.feefreepool.net udp
DE 88.198.246.242:80 p3.feefreepool.net tcp
US 8.8.8.8:53 _http._tcp.security.ubuntu.com udp
US 8.8.8.8:53 _http._tcp.archive.ubuntu.com udp
US 8.8.8.8:53 archive.ubuntu.com udp
US 8.8.8.8:53 archive.ubuntu.com udp
US 8.8.8.8:53 security.ubuntu.com udp
US 8.8.8.8:53 security.ubuntu.com udp
GB 185.125.190.83:80 security.ubuntu.com tcp
GB 185.125.190.83:80 security.ubuntu.com tcp
GB 185.125.190.83:80 security.ubuntu.com tcp
GB 185.125.190.81:80 security.ubuntu.com tcp

Files

memory/1574-1-0x0000000000400000-0x00000000015640f8-memory.dmp

/usr/sbin/uplugplay

MD5 af8c56f2b914f4889574a7e7a48fc13c
SHA1 ea7623492e80819c7251e1c1e35b4d22b6095b23
SHA256 5e053aa31d60cd6cb4f818d138d606293015012809155b419bdf8c7d6cf0da87
SHA512 7479fef3b1e87accb5c9e9faa6a112e56eff8da4bc498d50c510f2be74f12083b997041997946a4a6a366ecc8565e17ea982960d95cb1897bed13c34813425b4

/usr/lib/systemd/system/uplugplay.service

MD5 8ca62d1f47880bce036c2956c9b7b272
SHA1 3bcc3a5c4fcc5b0d08c4524a59f6b8e113b62060
SHA256 c655d3d4e374fad38313ec4262207b2d7d68a870238f203ef3c33f85e66c8e32
SHA512 4cd2d9d67151fa25e833707dee2442c4a5f752053fc2c36ec73c0e2b734c66ca69c63fceb47714d9add5b9fe2eee1e45be5199e2cae7c26173e766b333877da6