Analysis Overview
SHA256
e7b0342154b711162d31e4382f3055cda32cea2bc14479746c96869140a74d92
Threat Level: Known bad
The file 2024-06-13_a55c5c5eb2e7d97c0ed5f19e4b286fcd_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of CryptoLocker Variants
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-13 03:46
Signatures
Detection of CryptoLocker Variants
| 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 03:46
Reported
2024-06-13 03:49
Platform
win7-20240221-en
Max time kernel
149s
Max time network
151s
Command Line
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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\hasfj.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_a55c5c5eb2e7d97c0ed5f19e4b286fcd_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1996 wrote to memory of 1836 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_a55c5c5eb2e7d97c0ed5f19e4b286fcd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1996 wrote to memory of 1836 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_a55c5c5eb2e7d97c0ed5f19e4b286fcd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1996 wrote to memory of 1836 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_a55c5c5eb2e7d97c0ed5f19e4b286fcd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 1996 wrote to memory of 1836 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_a55c5c5eb2e7d97c0ed5f19e4b286fcd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_a55c5c5eb2e7d97c0ed5f19e4b286fcd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_a55c5c5eb2e7d97c0ed5f19e4b286fcd_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | mytarta.com | udp |
Files
memory/1996-0-0x0000000008000000-0x000000000800D000-memory.dmp
memory/1996-1-0x0000000000390000-0x0000000000396000-memory.dmp
memory/1996-2-0x00000000003A0000-0x00000000003A6000-memory.dmp
memory/1996-9-0x0000000000390000-0x0000000000396000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | 89578034f9f9826106f764b2b27b0f37 |
| SHA1 | 8513a04985481418e569e7823cb4541e6c364412 |
| SHA256 | fa6450e0edd96964e9b248521a3f194964e9e595c52c065bfc100ac189c83aaa |
| SHA512 | e46301bd04e9cd7f282195fd992635cb0d1f177d936c9313200a8052ce31b29e6b30cbba97de924ea98b0daad7d3524adab5ca4c717dbbd4eecb7f469ef98c09 |
memory/1836-16-0x0000000008000000-0x000000000800D000-memory.dmp
memory/1996-14-0x0000000008000000-0x000000000800D000-memory.dmp
memory/1836-18-0x0000000000390000-0x0000000000396000-memory.dmp
memory/1836-25-0x0000000000380000-0x0000000000386000-memory.dmp
memory/1836-26-0x0000000008000000-0x000000000800D000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-13 03:46
Reported
2024-06-13 03:49
Platform
win10v2004-20240508-en
Max time kernel
150s
Max time network
157s
Command Line
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 |
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_a55c5c5eb2e7d97c0ed5f19e4b286fcd_cryptolocker.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\hasfj.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3068 wrote to memory of 4604 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_a55c5c5eb2e7d97c0ed5f19e4b286fcd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 3068 wrote to memory of 4604 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_a55c5c5eb2e7d97c0ed5f19e4b286fcd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
| PID 3068 wrote to memory of 4604 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_a55c5c5eb2e7d97c0ed5f19e4b286fcd_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\hasfj.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_a55c5c5eb2e7d97c0ed5f19e4b286fcd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_a55c5c5eb2e7d97c0ed5f19e4b286fcd_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
"C:\Users\Admin\AppData\Local\Temp\hasfj.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=3740,i,3724086843943218842,1026644135694712596,262144 --variations-seed-version --mojo-platform-channel-handle=3252 /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
| US | 8.8.8.8:53 | mytarta.com | udp |
Files
memory/3068-0-0x0000000008000000-0x000000000800D000-memory.dmp
memory/3068-1-0x0000000001FE0000-0x0000000001FE6000-memory.dmp
memory/3068-2-0x0000000002010000-0x0000000002016000-memory.dmp
memory/3068-9-0x0000000001FE0000-0x0000000001FE6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\hasfj.exe
| MD5 | 89578034f9f9826106f764b2b27b0f37 |
| SHA1 | 8513a04985481418e569e7823cb4541e6c364412 |
| SHA256 | fa6450e0edd96964e9b248521a3f194964e9e595c52c065bfc100ac189c83aaa |
| SHA512 | e46301bd04e9cd7f282195fd992635cb0d1f177d936c9313200a8052ce31b29e6b30cbba97de924ea98b0daad7d3524adab5ca4c717dbbd4eecb7f469ef98c09 |
memory/3068-17-0x0000000008000000-0x000000000800D000-memory.dmp
memory/4604-19-0x0000000003150000-0x0000000003156000-memory.dmp
memory/4604-25-0x0000000002250000-0x0000000002256000-memory.dmp
memory/4604-26-0x0000000008000000-0x000000000800D000-memory.dmp