Malware Analysis Report

2025-01-17 22:48

Sample ID 240603-qsdcnahd78
Target 2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker
SHA256 56e94a99969b8ebeca355493e48414975a1b8e9bd526d3f33355ac5c78c62a7b
Tags
upx
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

56e94a99969b8ebeca355493e48414975a1b8e9bd526d3f33355ac5c78c62a7b

Threat Level: Known bad

The file 2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

UPX dump on OEP (original entry point)

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

UPX dump on OEP (original entry point)

UPX packed file

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-03 13:31

Signatures

Detection of CryptoLocker Variants

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

Detection of Cryptolocker Samples

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

UPX dump on OEP (original entry point)

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

UPX packed file

upx
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

2024-06-03 13:31

Reported

2024-06-03 13:33

Platform

win7-20240221-en

Max time kernel

149s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

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

Detection of Cryptolocker Samples

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

UPX dump on OEP (original entry point)

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

Executes dropped EXE

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.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
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe"

C:\Users\Admin\AppData\Local\Temp\asih.exe

"C:\Users\Admin\AppData\Local\Temp\asih.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 emrlogistics.com udp
US 3.19.116.195:443 emrlogistics.com tcp
US 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp
US 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp
US 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp
US 3.18.7.81:443 emrlogistics.com tcp

Files

memory/2264-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2264-1-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2264-2-0x0000000000270000-0x0000000000276000-memory.dmp

memory/2264-9-0x0000000000240000-0x0000000000246000-memory.dmp

\Users\Admin\AppData\Local\Temp\asih.exe

MD5 2917a1bd75e59d6e4af6e4966a5bae70
SHA1 452dac577cb85388b0d86f69fbb35dd1bbdb3731
SHA256 5d473e65b8bfbdf2d43e25551d695f40c6988325cf1f0294b34fde636a0f8dd8
SHA512 5286e6165fd752186ae1442343a5072048c7d0f514ccd6587faff3cc47a36ba44ac43d5e51c44e991508e766135f92bc091e298ffa19c300c407cf7be474c93a

memory/2264-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2900-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2900-26-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/2900-19-0x00000000002F0000-0x00000000002F6000-memory.dmp

memory/2264-14-0x0000000002480000-0x0000000002490000-memory.dmp

memory/2900-27-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-03 13:31

Reported

2024-06-03 13:33

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

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

Detection of Cryptolocker Samples

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

UPX dump on OEP (original entry point)

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\asih.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
N/A N/A N/A N/A
N/A N/A N/A N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe"

C:\Users\Admin\AppData\Local\Temp\asih.exe

"C:\Users\Admin\AppData\Local\Temp\asih.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 3.19.116.195:443 emrlogistics.com tcp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 20.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 3.18.7.81:443 emrlogistics.com tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 3.19.116.195:443 emrlogistics.com tcp
US 8.8.8.8:53 152.107.17.2.in-addr.arpa udp
US 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.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 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp
US 3.18.7.81:443 emrlogistics.com tcp
US 8.8.8.8:53 26.173.189.20.in-addr.arpa udp

Files

memory/4188-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/4188-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/4188-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/4188-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\asih.exe

MD5 2917a1bd75e59d6e4af6e4966a5bae70
SHA1 452dac577cb85388b0d86f69fbb35dd1bbdb3731
SHA256 5d473e65b8bfbdf2d43e25551d695f40c6988325cf1f0294b34fde636a0f8dd8
SHA512 5286e6165fd752186ae1442343a5072048c7d0f514ccd6587faff3cc47a36ba44ac43d5e51c44e991508e766135f92bc091e298ffa19c300c407cf7be474c93a

memory/4188-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2864-19-0x00000000007D0000-0x00000000007D6000-memory.dmp

memory/2864-25-0x00000000006A0000-0x00000000006A6000-memory.dmp

memory/2864-26-0x0000000000500000-0x0000000000510000-memory.dmp