Malware Analysis Report

2025-01-18 14:03

Sample ID 240613-dzlamasfmf
Target 2024-06-13_1968606da708ea5f77e4714ac1b8ca33_cryptolocker
SHA256 a2c9ef352c30baad21d4e2c2fc96d45553ce1f2757f39f551c5a6ce5d1a5c19d
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

a2c9ef352c30baad21d4e2c2fc96d45553ce1f2757f39f551c5a6ce5d1a5c19d

Threat Level: Known bad

The file 2024-06-13_1968606da708ea5f77e4714ac1b8ca33_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Checks computer location settings

UPX packed file

Executes dropped EXE

Loads dropped DLL

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:26

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

2024-06-13 03:26

Reported

2024-06-13 03:29

Platform

win7-20240221-en

Max time kernel

148s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_1968606da708ea5f77e4714ac1b8ca33_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

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\2024-06-13_1968606da708ea5f77e4714ac1b8ca33_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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_1968606da708ea5f77e4714ac1b8ca33_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_1968606da708ea5f77e4714ac1b8ca33_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 3.18.7.81:443 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
US 3.19.116.195:443 emrlogistics.com tcp

Files

memory/1724-0-0x0000000000240000-0x0000000000246000-memory.dmp

memory/1724-1-0x0000000000280000-0x0000000000286000-memory.dmp

memory/1724-9-0x0000000000240000-0x0000000000246000-memory.dmp

memory/1724-8-0x0000000000500000-0x0000000000510000-memory.dmp

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

MD5 5811c8248c37a72abd92d2fe09f6851f
SHA1 2c6855cd5605c2dfa2dc594d2dbc30fb8bf5512a
SHA256 500522ac3eabd9681de686089ff229a0320f9c6259c23e074174f4b2e605f1af
SHA512 be5e7fb0c53f6e7217b486d2b516fa1da488ed4a336206d73957ed99283d36f7eaf33aa04ff65999a3a6d6dc22651f239bfde9a0f4e4a7f8e8988286a3f945eb

memory/1584-15-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1584-17-0x0000000000490000-0x0000000000496000-memory.dmp

memory/1584-24-0x0000000000350000-0x0000000000356000-memory.dmp

memory/1584-25-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:26

Reported

2024-06-13 03:29

Platform

win10v2004-20240611-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_1968606da708ea5f77e4714ac1b8ca33_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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_1968606da708ea5f77e4714ac1b8ca33_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
N/A N/A N/A N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_1968606da708ea5f77e4714ac1b8ca33_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_1968606da708ea5f77e4714ac1b8ca33_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 54.209.32.212:443 emrlogistics.com tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 52.71.57.184:443 emrlogistics.com tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp

Files

memory/2036-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2036-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/2036-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/2036-3-0x00000000005E0000-0x00000000005E6000-memory.dmp

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

MD5 5811c8248c37a72abd92d2fe09f6851f
SHA1 2c6855cd5605c2dfa2dc594d2dbc30fb8bf5512a
SHA256 500522ac3eabd9681de686089ff229a0320f9c6259c23e074174f4b2e605f1af
SHA512 be5e7fb0c53f6e7217b486d2b516fa1da488ed4a336206d73957ed99283d36f7eaf33aa04ff65999a3a6d6dc22651f239bfde9a0f4e4a7f8e8988286a3f945eb

memory/1372-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2036-25-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1372-26-0x00000000006A0000-0x00000000006A6000-memory.dmp

memory/1372-19-0x00000000006D0000-0x00000000006D6000-memory.dmp

memory/1372-27-0x0000000000500000-0x0000000000510000-memory.dmp