Malware Analysis Report

2025-04-03 19:52

Sample ID 241109-xczz2sypfv
Target 2024-11-09_b15c1004d8b7c9002f77b4951b4fb532_cryptolocker
SHA256 151514f9a73af491e0c96f4c647f98b91e183f8a1c911ff459fcc1acc4417596
Tags
discovery upx
score
7/10

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
7/10

SHA256

151514f9a73af491e0c96f4c647f98b91e183f8a1c911ff459fcc1acc4417596

Threat Level: Shows suspicious behavior

The file 2024-11-09_b15c1004d8b7c9002f77b4951b4fb532_cryptolocker was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery upx

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

UPX packed file

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-09 18:43

Signatures

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
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 18:43

Reported

2024-11-09 18:45

Platform

win7-20241023-en

Max time kernel

140s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-09_b15c1004d8b7c9002f77b4951b4fb532_cryptolocker.exe"

Signatures

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\2024-11-09_b15c1004d8b7c9002f77b4951b4fb532_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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-11-09_b15c1004d8b7c9002f77b4951b4fb532_cryptolocker.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\asih.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-09_b15c1004d8b7c9002f77b4951b4fb532_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-09_b15c1004d8b7c9002f77b4951b4fb532_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 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp
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 3.130.253.23:443 emrlogistics.com tcp

Files

memory/2580-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2580-2-0x0000000000460000-0x0000000000466000-memory.dmp

memory/2580-9-0x0000000000420000-0x0000000000426000-memory.dmp

memory/2580-1-0x0000000000420000-0x0000000000426000-memory.dmp

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

MD5 b814a065fda5f3860f185697a51adce6
SHA1 cc82510976427a8831dd98e69894a6ebb2778f3a
SHA256 8e096e5e258407e95fb95fcfb397c0365d7a197161ab454c97b25a3b2eeee427
SHA512 981eef2c0c9b4cb3082f94b558f0abfeef8609d3d942c8a4aa0f0f6a5294727f04e41a6096496b4b0c1c8b977523e65314b664cc209a05164e2dcbaf23fa1343

memory/2580-15-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2112-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2112-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

memory/2112-26-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2112-27-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 18:43

Reported

2024-11-09 18:45

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-09_b15c1004d8b7c9002f77b4951b4fb532_cryptolocker.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-11-09_b15c1004d8b7c9002f77b4951b4fb532_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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-11-09_b15c1004d8b7c9002f77b4951b4fb532_cryptolocker.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\asih.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-09_b15c1004d8b7c9002f77b4951b4fb532_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-09_b15c1004d8b7c9002f77b4951b4fb532_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 54.209.32.212:443 emrlogistics.com tcp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 52.71.57.184:443 emrlogistics.com tcp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 68.209.201.84.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 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
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/4624-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/4624-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

memory/4624-2-0x00000000021D0000-0x00000000021D6000-memory.dmp

memory/4624-3-0x00000000020D0000-0x00000000020D6000-memory.dmp

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

MD5 b814a065fda5f3860f185697a51adce6
SHA1 cc82510976427a8831dd98e69894a6ebb2778f3a
SHA256 8e096e5e258407e95fb95fcfb397c0365d7a197161ab454c97b25a3b2eeee427
SHA512 981eef2c0c9b4cb3082f94b558f0abfeef8609d3d942c8a4aa0f0f6a5294727f04e41a6096496b4b0c1c8b977523e65314b664cc209a05164e2dcbaf23fa1343

memory/4624-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/3488-19-0x00000000006D0000-0x00000000006D6000-memory.dmp

memory/3488-25-0x00000000006B0000-0x00000000006B6000-memory.dmp

memory/3488-26-0x0000000000500000-0x0000000000510000-memory.dmp