Malware Analysis Report

2025-04-03 19:48

Sample ID 241110-hd5jlavkhr
Target 2024-11-10_62d6a5147e799ca5dfb0b74dab2dedb9_cryptolocker
SHA256 75c5a730af65b6f62fb78eaba1b9a7be484380aab10090992cb69953e67c85d2
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

75c5a730af65b6f62fb78eaba1b9a7be484380aab10090992cb69953e67c85d2

Threat Level: Shows suspicious behavior

The file 2024-11-10_62d6a5147e799ca5dfb0b74dab2dedb9_cryptolocker was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx discovery

Executes dropped EXE

Checks computer location settings

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

2024-11-10 06:38

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 06:38

Reported

2024-11-10 06:40

Platform

win7-20241023-en

Max time kernel

132s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_62d6a5147e799ca5dfb0b74dab2dedb9_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_62d6a5147e799ca5dfb0b74dab2dedb9_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_62d6a5147e799ca5dfb0b74dab2dedb9_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_62d6a5147e799ca5dfb0b74dab2dedb9_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_62d6a5147e799ca5dfb0b74dab2dedb9_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 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp

Files

memory/1556-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1556-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/1556-2-0x0000000000300000-0x0000000000306000-memory.dmp

memory/1556-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

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

MD5 2449c6911e864bdf1dec5da2d1fecae3
SHA1 20da86d889e2cad2c4836a8ccfbea520db7383a9
SHA256 0927ebf7a6bbc439944261a455bdffa45f4f800e14d2efae3baebcf4b08caf4e
SHA512 94c53520bb270d99bbe2a75f0bcbc759ca49294d79e3e3162f4c2c8ae4bc0c8396847f0ba8cbd5af2518609ddd5f320011bb0113a6c63e2127ca5fb30913b5ee

memory/1832-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1556-15-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1832-18-0x0000000000240000-0x0000000000246000-memory.dmp

memory/1832-26-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-10 06:38

Reported

2024-11-10 06:40

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_62d6a5147e799ca5dfb0b74dab2dedb9_cryptolocker.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-11-10_62d6a5147e799ca5dfb0b74dab2dedb9_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\asih.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-11-10_62d6a5147e799ca5dfb0b74dab2dedb9_cryptolocker.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-10_62d6a5147e799ca5dfb0b74dab2dedb9_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_62d6a5147e799ca5dfb0b74dab2dedb9_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 3.19.116.195:443 emrlogistics.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
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 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 3.18.7.81:443 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 75.117.19.2.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
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.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 67.112.168.52.in-addr.arpa udp

Files

memory/2384-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2384-1-0x0000000000620000-0x0000000000626000-memory.dmp

memory/2384-2-0x0000000000620000-0x0000000000626000-memory.dmp

memory/2384-3-0x0000000000650000-0x0000000000656000-memory.dmp

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

MD5 2449c6911e864bdf1dec5da2d1fecae3
SHA1 20da86d889e2cad2c4836a8ccfbea520db7383a9
SHA256 0927ebf7a6bbc439944261a455bdffa45f4f800e14d2efae3baebcf4b08caf4e
SHA512 94c53520bb270d99bbe2a75f0bcbc759ca49294d79e3e3162f4c2c8ae4bc0c8396847f0ba8cbd5af2518609ddd5f320011bb0113a6c63e2127ca5fb30913b5ee

memory/2384-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1668-19-0x00000000006A0000-0x00000000006A6000-memory.dmp

memory/1668-20-0x00000000006C0000-0x00000000006C6000-memory.dmp

memory/1668-26-0x0000000000500000-0x0000000000510000-memory.dmp