Malware Analysis Report

2025-01-18 00:08

Sample ID 240603-taj92abd6v
Target 2024-06-03_35446383acb81250f11c39433b44da88_cryptolocker
SHA256 82afb9af2752b853f0015343a9b24741a3093418c13a8c7a4d48d23d85c35428
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

82afb9af2752b853f0015343a9b24741a3093418c13a8c7a4d48d23d85c35428

Threat Level: Known bad

The file 2024-06-03_35446383acb81250f11c39433b44da88_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

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-03 15:51

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

2024-06-03 15:51

Reported

2024-06-03 15:53

Platform

win7-20240215-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_35446383acb81250f11c39433b44da88_cryptolocker.exe"

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

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\2024-06-03_35446383acb81250f11c39433b44da88_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-03_35446383acb81250f11c39433b44da88_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_35446383acb81250f11c39433b44da88_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 52.71.57.184:443 emrlogistics.com tcp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp
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 52.71.57.184:443 emrlogistics.com tcp
US 54.209.32.212:443 emrlogistics.com tcp

Files

memory/2028-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/2028-1-0x0000000000350000-0x0000000000356000-memory.dmp

memory/2028-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

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

MD5 86e0a8c6413f76af93e999502f369081
SHA1 75c8379dbcaac8cbba12d70853a3f621dcdd79cb
SHA256 b777a09ce4e77bd4a9e520ead110dbf629d306a1ed019dcc38335b3c9dbce164
SHA512 6a25bf67171ac78bba125b19fb8c32ac0557a067525618bed78edb5de2cd245cbbd4ef8186b0f67889906189d35059f6b240d5e2ece3d2f0e5c79d1247d663d6

memory/1696-22-0x0000000000240000-0x0000000000246000-memory.dmp

memory/1696-15-0x00000000004A0000-0x00000000004A6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-03 15:51

Reported

2024-06-03 15:53

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_35446383acb81250f11c39433b44da88_cryptolocker.exe"

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

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\2024-06-03_35446383acb81250f11c39433b44da88_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\2024-06-03_35446383acb81250f11c39433b44da88_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_35446383acb81250f11c39433b44da88_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=3940,i,15142778360084620907,1763097090506261076,262144 --variations-seed-version --mojo-platform-channel-handle=4456 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 3.94.41.167:443 emrlogistics.com tcp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
NL 23.62.61.72:443 www.bing.com tcp
NL 23.62.61.72:443 www.bing.com tcp
US 8.8.8.8:53 72.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 52.86.6.113:443 emrlogistics.com tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 3.94.41.167:443 emrlogistics.com tcp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa 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

Files

memory/4968-0-0x0000000000570000-0x0000000000576000-memory.dmp

memory/4968-2-0x0000000002070000-0x0000000002076000-memory.dmp

memory/4968-8-0x0000000000570000-0x0000000000576000-memory.dmp

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

MD5 86e0a8c6413f76af93e999502f369081
SHA1 75c8379dbcaac8cbba12d70853a3f621dcdd79cb
SHA256 b777a09ce4e77bd4a9e520ead110dbf629d306a1ed019dcc38335b3c9dbce164
SHA512 6a25bf67171ac78bba125b19fb8c32ac0557a067525618bed78edb5de2cd245cbbd4ef8186b0f67889906189d35059f6b240d5e2ece3d2f0e5c79d1247d663d6

memory/2864-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

memory/2864-23-0x00000000005A0000-0x00000000005A6000-memory.dmp