Malware Analysis Report

2025-08-05 16:33

Sample ID 240611-czgf1a1gqn
Target 2024-06-11_6b58f9f66d844179fad64670891d9f65_cryptolocker
SHA256 f8c124c9359304a07cadf151087d125be91c9f44def0596b6bab7a79719f7fbd
Tags
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

f8c124c9359304a07cadf151087d125be91c9f44def0596b6bab7a79719f7fbd

Threat Level: Known bad

The file 2024-06-11_6b58f9f66d844179fad64670891d9f65_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

UPX dump on OEP (original entry point)

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

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

2024-06-11 02:30

Signatures

Detection of CryptoLocker Variants

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

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-11 02:30

Reported

2024-06-11 02:33

Platform

win10v2004-20240426-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_6b58f9f66d844179fad64670891d9f65_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

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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-11_6b58f9f66d844179fad64670891d9f65_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\2024-06-11_6b58f9f66d844179fad64670891d9f65_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_6b58f9f66d844179fad64670891d9f65_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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 3.130.204.160:443 emrlogistics.com tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 6.160.77.104.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 3.130.253.23:443 emrlogistics.com tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp

Files

memory/3700-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/3700-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

memory/3700-2-0x0000000002080000-0x0000000002086000-memory.dmp

memory/3700-9-0x00000000006B0000-0x00000000006B6000-memory.dmp

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

MD5 9ed914be6690d0b17ff85530527b4275
SHA1 e467d7e5e631678337b16cab794b1793747f3bd0
SHA256 506d7ce8581058daff2c1d2bf9c503a97b920fd8a2d09c732ef776c448381b54
SHA512 f72a7ac577f4be06289c7937ea066ec6bfc1417be792913f104b8c67c222789ee14a38aedff73f2ae2e22a216480da673df382b4949dceb2eded5dc7b95513ee

memory/3700-18-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2836-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2836-26-0x00000000006A0000-0x00000000006A6000-memory.dmp

memory/2836-20-0x0000000000860000-0x0000000000866000-memory.dmp

memory/2836-27-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-11 02:30

Reported

2024-06-11 02:33

Platform

win7-20240419-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_6b58f9f66d844179fad64670891d9f65_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

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\2024-06-11_6b58f9f66d844179fad64670891d9f65_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-11_6b58f9f66d844179fad64670891d9f65_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_6b58f9f66d844179fad64670891d9f65_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 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp

Files

memory/2176-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2176-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2176-2-0x0000000000210000-0x0000000000216000-memory.dmp

memory/2176-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

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

MD5 9ed914be6690d0b17ff85530527b4275
SHA1 e467d7e5e631678337b16cab794b1793747f3bd0
SHA256 506d7ce8581058daff2c1d2bf9c503a97b920fd8a2d09c732ef776c448381b54
SHA512 f72a7ac577f4be06289c7937ea066ec6bfc1417be792913f104b8c67c222789ee14a38aedff73f2ae2e22a216480da673df382b4949dceb2eded5dc7b95513ee

memory/2176-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1648-26-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1648-25-0x0000000000320000-0x0000000000326000-memory.dmp

memory/1648-18-0x0000000000460000-0x0000000000466000-memory.dmp