Malware Analysis Report

2025-01-18 12:58

Sample ID 240613-d6gk1swgjm
Target 2024-06-13_7077746279c6b427bfaf07d024430b55_cryptolocker
SHA256 375bbbc7b03fad6cb636bc0bae9233785912042d8edf37d5d9419eb60b0057b2
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

375bbbc7b03fad6cb636bc0bae9233785912042d8edf37d5d9419eb60b0057b2

Threat Level: Known bad

The file 2024-06-13_7077746279c6b427bfaf07d024430b55_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Loads dropped DLL

Executes dropped EXE

Checks computer location settings

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:37

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

2024-06-13 03:37

Reported

2024-06-13 03:39

Platform

win7-20240220-en

Max time kernel

148s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_7077746279c6b427bfaf07d024430b55_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\2024-06-13_7077746279c6b427bfaf07d024430b55_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_7077746279c6b427bfaf07d024430b55_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_7077746279c6b427bfaf07d024430b55_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 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
US 3.94.41.167:443 emrlogistics.com tcp

Files

memory/2908-0-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2908-1-0x0000000000350000-0x0000000000356000-memory.dmp

memory/2908-2-0x0000000000490000-0x0000000000496000-memory.dmp

memory/2908-9-0x0000000000350000-0x0000000000356000-memory.dmp

memory/2908-15-0x0000000000500000-0x000000000050B000-memory.dmp

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

MD5 630e389b4485f04f657728ba06bfc348
SHA1 9bf7ee461dcb9eccb26fd55d2937023595a8816c
SHA256 bac303cdc0a6ed5dfad1dbf573f9e71244bc8121f39a25b19f1523e955eecd18
SHA512 03c4d58dd931255d5d38b3f13298d012d84ac56a93026406f2bceae1d454454bc3d7802ab9fbcdb67251e3f9b60aa568802632eafb764aea90d9b4c7a8787d18

memory/2508-18-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2508-17-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2508-19-0x0000000000280000-0x0000000000286000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:37

Reported

2024-06-13 03:39

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_7077746279c6b427bfaf07d024430b55_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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_7077746279c6b427bfaf07d024430b55_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\2024-06-13_7077746279c6b427bfaf07d024430b55_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_7077746279c6b427bfaf07d024430b55_cryptolocker.exe"

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

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

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3756,i,9746875443948590908,1444894342962555245,262144 --variations-seed-version --mojo-platform-channel-handle=4232 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa 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/2800-0-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2800-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/2800-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/2800-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

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

MD5 630e389b4485f04f657728ba06bfc348
SHA1 9bf7ee461dcb9eccb26fd55d2937023595a8816c
SHA256 bac303cdc0a6ed5dfad1dbf573f9e71244bc8121f39a25b19f1523e955eecd18
SHA512 03c4d58dd931255d5d38b3f13298d012d84ac56a93026406f2bceae1d454454bc3d7802ab9fbcdb67251e3f9b60aa568802632eafb764aea90d9b4c7a8787d18

memory/4356-17-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2800-18-0x0000000000500000-0x000000000050B000-memory.dmp

memory/4356-20-0x0000000000690000-0x0000000000696000-memory.dmp

memory/4356-26-0x0000000000660000-0x0000000000666000-memory.dmp

memory/4356-27-0x0000000000500000-0x000000000050B000-memory.dmp