Malware Analysis Report

2025-06-16 02:03

Sample ID 250221-zybkpaskv8
Target na.elf
SHA256 9f66108e8b2e9484a5622a29f9ae72b1f8c009db497bec5026edf096841a9eac
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

9f66108e8b2e9484a5622a29f9ae72b1f8c009db497bec5026edf096841a9eac

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

Enumerates running processes

Write file to user bin folder

Modifies systemd

UPX packed file

Reads CPU attributes

Enumerates kernel/hardware configuration

Reads runtime system information

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-02-21 21:07

Signatures

UPX packed file

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-02-21 21:07

Reported

2025-02-21 21:09

Platform

ubuntu2404-amd64-20240523-en

Max time kernel

6s

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/possible /usr/bin/pgrep N/A
File opened for reading /sys/devices/system/cpu/possible /usr/bin/pgrep N/A
File opened for reading /sys/devices/system/cpu/possible /usr/bin/pgrep N/A

Enumerates kernel/hardware configuration

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

Reads runtime system information

discovery
Description Indicator Process Target
File opened for reading /proc/80/status /usr/bin/pgrep N/A
File opened for reading /proc/1974/ctty /usr/bin/pgrep N/A
File opened for reading /proc/2/stat /usr/bin/pidof N/A
File opened for reading /proc/8/stat /usr/bin/pgrep N/A
File opened for reading /proc/66/cgroup /usr/bin/pgrep N/A
File opened for reading /proc/728/ctty /usr/bin/pgrep N/A
File opened for reading /proc/2226/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/1966/stat /usr/bin/pidof N/A
File opened for reading /proc/1396/status /usr/bin/pgrep N/A
File opened for reading /proc/1397/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/1868/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/3/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/2267/ctty /usr/bin/pgrep N/A
File opened for reading /proc/582/cmdline /usr/bin/pidof N/A
File opened for reading /proc/1055/stat /usr/bin/pgrep N/A
File opened for reading /proc/823/status /usr/bin/pgrep N/A
File opened for reading /proc/1986/cgroup /usr/bin/pgrep N/A
File opened for reading /proc/191/cgroup /usr/bin/pgrep N/A
File opened for reading /proc/891/ctty /usr/bin/pgrep N/A
File opened for reading /proc/1956/cgroup /usr/bin/pgrep N/A
File opened for reading /proc/2005/status /usr/bin/pgrep N/A
File opened for reading /proc/1121/cmdline /usr/bin/pidof N/A
File opened for reading /proc/2318/cmdline /usr/bin/pidof N/A
File opened for reading /proc/192/status /usr/bin/pgrep N/A
File opened for reading /proc/2496/stat /usr/bin/pgrep N/A
File opened for reading /proc/1933/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/27/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/30/ctty /usr/bin/pgrep N/A
File opened for reading /proc/2495/status /usr/bin/pgrep N/A
File opened for reading /proc/195/stat /usr/bin/pidof N/A
File opened for reading /proc/2263/stat /usr/bin/pidof N/A
File opened for reading /proc/1974/cgroup /usr/bin/pgrep N/A
File opened for reading /proc/2008/status /usr/bin/pgrep N/A
File opened for reading /proc/18/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/194/status /usr/bin/pgrep N/A
File opened for reading /proc/36/cmdline /usr/bin/pidof N/A
File opened for reading /proc/1887/cmdline /usr/bin/pidof N/A
File opened for reading /proc/16/stat /usr/bin/pgrep N/A
File opened for reading /proc/1868/cmdline /usr/bin/pidof N/A
File opened for reading /proc/1058/stat /usr/bin/pidof N/A
File opened for reading /proc/2009/status /usr/bin/pgrep N/A
File opened for reading /proc/2493/stat /usr/bin/pidof N/A
File opened for reading /proc/54/stat /usr/bin/pgrep N/A
File opened for reading /proc/1081/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/1957/cgroup /usr/bin/pgrep N/A
File opened for reading /proc/1901/ctty /usr/bin/pgrep N/A
File opened for reading /proc/36/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/80/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/124/cgroup /usr/bin/pgrep N/A
File opened for reading /proc/1396/stat /usr/bin/pgrep N/A
File opened for reading /proc/5/stat /usr/bin/pidof N/A
File opened for reading /proc/20/cmdline /usr/bin/pidof N/A
File opened for reading /proc/385/cgroup /usr/bin/pgrep N/A
File opened for reading /proc/15/stat /usr/bin/pgrep N/A
File opened for reading /proc/33/status /usr/bin/pgrep N/A
File opened for reading /proc/55/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/2267/cmdline /usr/bin/pgrep N/A
File opened for reading /proc/1901/ctty /usr/bin/pgrep N/A
File opened for reading /proc/198/stat /usr/bin/pidof N/A
File opened for reading /proc/24/status /usr/bin/pgrep N/A
File opened for reading /proc/2206/status /usr/bin/pgrep N/A
File opened for reading /proc/30/stat /usr/bin/pidof N/A
File opened for reading /proc/36/cgroup /usr/bin/pgrep N/A
File opened for reading /proc/385/cmdline /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.se.archive.ubuntu.com udp
US 8.8.8.8:53 security.ubuntu.com udp
US 8.8.8.8:53 security.ubuntu.com udp
US 8.8.8.8:53 se.archive.ubuntu.com udp
US 8.8.8.8:53 se.archive.ubuntu.com udp
GB 185.125.190.81:80 security.ubuntu.com tcp
SE 194.71.11.173:80 se.archive.ubuntu.com tcp
SE 194.71.11.163:80 se.archive.ubuntu.com tcp

Files

memory/2496-1-0x0000000000400000-0x00000000015640f8-memory.dmp

/usr/sbin/uplugplay

MD5 573be86be553c072f9227334859e47f8
SHA1 12854f3086102ae83753d52d3a3119333d964261
SHA256 9f66108e8b2e9484a5622a29f9ae72b1f8c009db497bec5026edf096841a9eac
SHA512 96162c4fd9444afcacf150efe266fead207eb04c673b9ce3b5e396684b8deeeae5fd1e20977794a70bc44ebf5be1d2e9cc84edbcb208e0e9e8c0841239a06029

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

MD5 8ca62d1f47880bce036c2956c9b7b272
SHA1 3bcc3a5c4fcc5b0d08c4524a59f6b8e113b62060
SHA256 c655d3d4e374fad38313ec4262207b2d7d68a870238f203ef3c33f85e66c8e32
SHA512 4cd2d9d67151fa25e833707dee2442c4a5f752053fc2c36ec73c0e2b734c66ca69c63fceb47714d9add5b9fe2eee1e45be5199e2cae7c26173e766b333877da6