Malware Analysis Report

2025-04-03 19:46

Sample ID 241110-g8f9tavkbq
Target 2024-11-10_1e7b57dbe0f9997cb5e68087ecb1e6d6_cryptolocker
SHA256 6b4d0297f89fed9fbbcce18072130616eec55344bfafd9a9b9168e13ad6c7569
Tags
upx discovery
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

6b4d0297f89fed9fbbcce18072130616eec55344bfafd9a9b9168e13ad6c7569

Threat Level: Shows suspicious behavior

The file 2024-11-10_1e7b57dbe0f9997cb5e68087ecb1e6d6_cryptolocker was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx discovery

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

UPX packed file

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-10 06:28

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-10 06:28

Reported

2024-11-10 06:30

Platform

win7-20241010-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_1e7b57dbe0f9997cb5e68087ecb1e6d6_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\2024-11-10_1e7b57dbe0f9997cb5e68087ecb1e6d6_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\2024-11-10_1e7b57dbe0f9997cb5e68087ecb1e6d6_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\2024-11-10_1e7b57dbe0f9997cb5e68087ecb1e6d6_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_1e7b57dbe0f9997cb5e68087ecb1e6d6_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/2100-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2100-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

memory/2100-9-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2100-1-0x0000000000240000-0x0000000000246000-memory.dmp

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

MD5 03c053e14a58971709cdeffd99b0a9dd
SHA1 b1c1d963d7e7ce392ad20b3eb927c3e223515d00
SHA256 76fabf24920acbe1f8e22d775c3ba961f9118b2fe4c8594036d6579460908137
SHA512 45331b2709905d64f1d0f30978980b6abb687ebe7d3f71d27cacef1e05ee3b7a6bb2321f82c9a901bd9048ffcc46b69b1de289cc719f261eaaeddb687e029aa3

memory/2100-15-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1472-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1472-18-0x00000000001C0000-0x00000000001C6000-memory.dmp

memory/1472-19-0x0000000000270000-0x0000000000276000-memory.dmp

memory/1472-26-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-10 06:28

Reported

2024-11-10 06:30

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_1e7b57dbe0f9997cb5e68087ecb1e6d6_cryptolocker.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-11-10_1e7b57dbe0f9997cb5e68087ecb1e6d6_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\2024-11-10_1e7b57dbe0f9997cb5e68087ecb1e6d6_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\2024-11-10_1e7b57dbe0f9997cb5e68087ecb1e6d6_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_1e7b57dbe0f9997cb5e68087ecb1e6d6_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 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 66.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 3.19.116.195:443 emrlogistics.com tcp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 98.117.19.2.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 13.227.111.52.in-addr.arpa 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

Files

memory/1636-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1636-1-0x0000000000520000-0x0000000000526000-memory.dmp

memory/1636-2-0x0000000000520000-0x0000000000526000-memory.dmp

memory/1636-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

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

MD5 03c053e14a58971709cdeffd99b0a9dd
SHA1 b1c1d963d7e7ce392ad20b3eb927c3e223515d00
SHA256 76fabf24920acbe1f8e22d775c3ba961f9118b2fe4c8594036d6579460908137
SHA512 45331b2709905d64f1d0f30978980b6abb687ebe7d3f71d27cacef1e05ee3b7a6bb2321f82c9a901bd9048ffcc46b69b1de289cc719f261eaaeddb687e029aa3

memory/1636-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/4420-19-0x00000000020E0000-0x00000000020E6000-memory.dmp

memory/4420-20-0x0000000002100000-0x0000000002106000-memory.dmp

memory/4420-26-0x0000000000500000-0x0000000000510000-memory.dmp