Malware Analysis Report

2025-03-15 03:35

Sample ID 240111-vlyr8schd9
Target Keystrokes v1.05.exe
SHA256 b3eac493af9af76dcea70745bc294b6fbb9ffdc7c0564e341f4666af6ff153e7
Tags
pyinstaller empyrean upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b3eac493af9af76dcea70745bc294b6fbb9ffdc7c0564e341f4666af6ff153e7

Threat Level: Known bad

The file Keystrokes v1.05.exe was found to be: Known bad.

Malicious Activity Summary

pyinstaller empyrean upx

Detects Empyrean stealer

Empyrean family

Loads dropped DLL

UPX packed file

Detects Pyinstaller

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-01-11 17:05

Signatures

Detects Empyrean stealer

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

Empyrean family

empyrean

Detects Pyinstaller

pyinstaller
Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-11 17:05

Reported

2024-01-11 17:08

Platform

win7-20231215-en

Max time kernel

120s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Keystrokes v1.05.exe"

Signatures

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Keystrokes v1.05.exe N/A

UPX packed file

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

Processes

C:\Users\Admin\AppData\Local\Temp\Keystrokes v1.05.exe

"C:\Users\Admin\AppData\Local\Temp\Keystrokes v1.05.exe"

C:\Users\Admin\AppData\Local\Temp\Keystrokes v1.05.exe

"C:\Users\Admin\AppData\Local\Temp\Keystrokes v1.05.exe"

Network

N/A

Files

C:\Users\Admin\AppData\Local\Temp\_MEI21242\python39.dll

MD5 25c2f126b06b7b2f6188d89224c4a277
SHA1 db0a08bd014bd61f91319b19730a6647febd16ad
SHA256 f37a76eced4d25f4f652cb2e4fc7aac2592156a38652cab7e87f1e63892e6a02
SHA512 aed3321475b3437abb614c1a927a6ce337dc0507f8ade6d86d3b31642eedb6c771cd113307c7f3cc8162a9903b90e89c1513cf1e4549914cbe8d7a55bd9ad0ef

memory/2972-43-0x000007FEF5F90000-0x000007FEF6411000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-11 17:05

Reported

2024-01-11 17:09

Platform

win10v2004-20231215-en

Max time kernel

170s

Max time network

134s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Keystrokes v1.05.exe"

Signatures

UPX packed file

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

Processes

C:\Users\Admin\AppData\Local\Temp\Keystrokes v1.05.exe

"C:\Users\Admin\AppData\Local\Temp\Keystrokes v1.05.exe"

C:\Users\Admin\AppData\Local\Temp\Keystrokes v1.05.exe

"C:\Users\Admin\AppData\Local\Temp\Keystrokes v1.05.exe"

Network

Country Destination Domain Proto
US 20.231.121.79:80 tcp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 182.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 17.53.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 57.110.18.2.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 167.109.18.2.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 175.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 100.5.17.2.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
GB 88.221.135.217:80 tcp
GB 88.221.135.217:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
US 8.8.8.8:53 udp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 88.221.134.50:80 tcp
GB 88.221.135.217:80 tcp
GB 88.221.135.217:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
US 8.8.8.8:53 udp
N/A 104.46.162.226:443 tcp
GB 96.17.178.174:80 tcp
US 192.229.221.95:80 tcp
GB 96.17.178.174:80 tcp
US 8.8.8.8:53 udp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
FR 2.18.110.57:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
US 8.8.8.8:53 udp
N/A 138.91.171.81:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
GB 96.17.178.174:80 tcp
US 8.8.8.8:53 udp
N/A 88.221.134.18:80 tcp
N/A 88.221.134.18:80 tcp
US 8.8.8.8:53 udp
N/A 96.17.178.210:80 tcp
N/A 96.17.178.210:80 tcp
US 8.8.8.8:53 udp
N/A 96.17.178.210:80 tcp
US 8.8.8.8:53 udp
N/A 96.17.178.210:80 tcp
N/A 96.17.178.210:80 tcp
N/A 96.17.178.210:80 tcp
N/A 96.17.178.210:80 tcp
N/A 96.17.178.210:80 tcp
N/A 96.17.178.210:80 tcp
N/A 96.17.178.210:80 tcp
N/A 96.17.178.210:80 tcp
N/A 96.17.178.210:80 tcp
N/A 96.17.178.210:80 tcp
N/A 96.17.178.210:80 tcp
N/A 96.17.178.210:80 tcp
FR 2.18.110.57:80 tcp
N/A 96.17.178.210:80 tcp
US 8.8.8.8:53 udp
N/A 138.91.171.81:80 tcp
N/A 96.17.178.210:80 tcp
N/A 96.17.178.210:80 tcp

Files

C:\Users\Admin\AppData\Local\Temp\_MEI46122\python39.dll

MD5 77f6e91a27fc2c5c878980c763f1b32e
SHA1 5c288e3e69d32bb60b340f66ffadae751e1d5900
SHA256 2acc0d58a618c937280b64ed6ac9839c115523f806797bc2a68acb21abc63152
SHA512 f6214421f7c63a7bd527cc5df039e9b157f74587d279d03af6d0fd795a20c5e32b8c4208a96a81a196b99cad6e8ddeb896730fa31e6667381b89971393ceab89

C:\Users\Admin\AppData\Local\Temp\_MEI46122\VCRUNTIME140.dll

MD5 8701ecfaf4541be06b841900ee14c6d7
SHA1 e055eeccf7699d8770fdbc235a53bf0e147964e0
SHA256 9fe6a9c47103e06bb11121e30979de9e94cc74c314884325beab4ca54e043153
SHA512 1d7d29ee2f79e7c170a48e585f2d3f127246fe64913e99e7aba74393fc0f8278b125a67ba396cd56858f9923fc5600aee6f26e07e91efe72c45e058de273e00d

memory/3776-45-0x00007FFD73B50000-0x00007FFD73FD1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\_MEI46122\VCRUNTIME140.dll

MD5 4a365ffdbde27954e768358f4a4ce82e
SHA1 a1b31102eee1d2a4ed1290da2038b7b9f6a104a3
SHA256 6a0850419432735a98e56857d5cfce97e9d58a947a9863ca6afadd1c7bcab27c
SHA512 54e4b6287c4d5a165509047262873085f50953af63ca0dcb7649c22aba5b439ab117a7e0d6e7f0a3e51a23e28a255ffd1ca1ddce4b2ea7f87bca1c9b0dbe2722

C:\Users\Admin\AppData\Local\Temp\_MEI46122\base_library.zip

MD5 91b0898d43f059356616474436c0861b
SHA1 6077b4d524c992303dff755f9eeebf91a3639b74
SHA256 90c24bbd1c2de746f59c6d3664300a96954a0a8feb3095b388dff2cde4f6dbcf
SHA512 d6e0c2835396cf0b3e6db4c071fbec5e06ae31eff71009c1b5660086e804b1ecf3860016e6b553f755359fab0fcd24c3400458d94e37fe66f92c6c8ad60e279c

memory/3776-52-0x00007FFD83750000-0x00007FFD8375F000-memory.dmp

memory/3776-58-0x00007FFD830C0000-0x00007FFD830CE000-memory.dmp

memory/3776-56-0x00007FFD82C80000-0x00007FFD82C9A000-memory.dmp

memory/3776-51-0x00007FFD82CA0000-0x00007FFD82CC7000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\_MEI46122\_ctypes.pyd

MD5 b8f801273f7a5eb69d3c29f24a44d08c
SHA1 3a5a6e5a03aaf44a80d3798c48f4e38e62271cc1
SHA256 9a2dcd673697f0af45baf74b0e8151668a1553478214296c50e30a8ee491c023
SHA512 acc23f6ea88a6a0f0baba6e5541b362408e3de55d0bc051de8c84f4c95e9bd74e1ab7744551fede9e2cd8aaa0b31cc637af40a6e6b8dd2fdb434c582c5c256bd

memory/3776-62-0x00007FFD82C80000-0x00007FFD82C9A000-memory.dmp

memory/3776-60-0x00007FFD82CA0000-0x00007FFD82CC7000-memory.dmp

memory/3776-59-0x00007FFD73B50000-0x00007FFD73FD1000-memory.dmp