Malware Analysis Report

2025-08-10 21:40

Sample ID 240602-25exssbf48
Target 2024-06-02_58f4c7e33ffbef347607ecf1dbe9902c_cryptolocker
SHA256 c5eca73b2d41e179057e0ee240edf4d4801449c24c15d05081dd514b0208eb12
Tags
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

c5eca73b2d41e179057e0ee240edf4d4801449c24c15d05081dd514b0208eb12

Threat Level: Known bad

The file 2024-06-02_58f4c7e33ffbef347607ecf1dbe9902c_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-02 23:09

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-02 23:09

Reported

2024-06-02 23:12

Platform

win7-20231129-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_58f4c7e33ffbef347607ecf1dbe9902c_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

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\2024-06-02_58f4c7e33ffbef347607ecf1dbe9902c_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-02_58f4c7e33ffbef347607ecf1dbe9902c_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_58f4c7e33ffbef347607ecf1dbe9902c_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 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp

Files

memory/2152-0-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2152-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2152-2-0x0000000000210000-0x0000000000216000-memory.dmp

memory/2152-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

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

MD5 a213790a338b42761bc10f0811cac32e
SHA1 e51621858dbc1a4895d663fb27bf5fea540df19b
SHA256 c1b30fe057607588b0bc8ece7c925f29e832c6e832001b9768f1658fd1a3e251
SHA512 6c83b6414a3cda7da4e2648c82e410ba241bb1d83ee32570ebba5b49f060df4fd963484addf03a94b54a98a559f4a72a3c319f7d4178e69650bda2b20ae9bac5

memory/2152-15-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2176-17-0x0000000000280000-0x0000000000286000-memory.dmp

memory/2176-24-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2176-25-0x0000000000500000-0x000000000050B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-02 23:09

Reported

2024-06-02 23:12

Platform

win10v2004-20240426-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_58f4c7e33ffbef347607ecf1dbe9902c_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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-02_58f4c7e33ffbef347607ecf1dbe9902c_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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-02_58f4c7e33ffbef347607ecf1dbe9902c_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_58f4c7e33ffbef347607ecf1dbe9902c_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 3.94.41.167:443 emrlogistics.com tcp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 52.86.6.113:443 emrlogistics.com tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp

Files

memory/1040-0-0x0000000000500000-0x000000000050B000-memory.dmp

memory/1040-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

memory/1040-5-0x00000000006D0000-0x00000000006D6000-memory.dmp

memory/1040-9-0x00000000005B0000-0x00000000005B6000-memory.dmp

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

MD5 a213790a338b42761bc10f0811cac32e
SHA1 e51621858dbc1a4895d663fb27bf5fea540df19b
SHA256 c1b30fe057607588b0bc8ece7c925f29e832c6e832001b9768f1658fd1a3e251
SHA512 6c83b6414a3cda7da4e2648c82e410ba241bb1d83ee32570ebba5b49f060df4fd963484addf03a94b54a98a559f4a72a3c319f7d4178e69650bda2b20ae9bac5

memory/1040-17-0x0000000000500000-0x000000000050B000-memory.dmp

memory/1624-18-0x0000000000500000-0x000000000050B000-memory.dmp

memory/1624-21-0x0000000002100000-0x0000000002106000-memory.dmp

memory/1624-20-0x0000000000740000-0x0000000000746000-memory.dmp

memory/1624-27-0x0000000000500000-0x000000000050B000-memory.dmp