Analysis Overview
SHA256
7f8297a5240f75cc7cdbade449f70fa495ab5355c75c2df9f1fe1dcaf57ac95a
Threat Level: Known bad
The file 2024-06-10_c70ac706b4157167d03227532fc5a71e_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of CryptoLocker Variants
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Modifies system certificate store
Suspicious use of UnmapMainImage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-10 06:28
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
2024-06-10 06:25
Reported
2024-06-10 06:39
Platform
win7-20240215-en
Max time kernel
121s
Max time network
123s
Command Line
Signatures
Detection of CryptoLocker Variants
| 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\demka.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_c70ac706b4157167d03227532fc5a71e_cryptolocker.exe | N/A |
Enumerates physical storage devices
Modifies system certificate store
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8 | C:\Users\Admin\AppData\Local\Temp\demka.exe | N/A |
| Set value (data) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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 | C:\Users\Admin\AppData\Local\Temp\demka.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_c70ac706b4157167d03227532fc5a71e_cryptolocker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\demka.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2916 wrote to memory of 2532 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_c70ac706b4157167d03227532fc5a71e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
| PID 2916 wrote to memory of 2532 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_c70ac706b4157167d03227532fc5a71e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
| PID 2916 wrote to memory of 2532 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_c70ac706b4157167d03227532fc5a71e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
| PID 2916 wrote to memory of 2532 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_c70ac706b4157167d03227532fc5a71e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-10_c70ac706b4157167d03227532fc5a71e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_c70ac706b4157167d03227532fc5a71e_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\demka.exe
"C:\Users\Admin\AppData\Local\Temp\demka.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ttms.org | udp |
| US | 35.215.114.222:443 | ttms.org | tcp |
Files
memory/2916-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/2916-0-0x0000000000380000-0x0000000000386000-memory.dmp
memory/2916-8-0x0000000000380000-0x0000000000386000-memory.dmp
\Users\Admin\AppData\Local\Temp\demka.exe
| MD5 | 3424207893b64a11f8bcb4538a86477d |
| SHA1 | e5833fdc92822500598f2a1b596cdf21a7ba9dc0 |
| SHA256 | 1830c36acd4a2425c92b3b133bed7c3d5990d87c0f1e9bf1fde19a9bec7bdc85 |
| SHA512 | 87918f07baebd97ab1a6d9fc75ed80a5e93535ec23155809cf6ae106ad0b87ac0eba5b6b283c80a5a0cc5d450abae8bffbb0acd3f1e866fb5eb12dfbccf06f40 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-10 06:25
Reported
2024-06-10 06:39
Platform
win10v2004-20240226-en
Max time kernel
21s
Max time network
151s
Command Line
Signatures
Detection of CryptoLocker Variants
| 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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-10_c70ac706b4157167d03227532fc5a71e_cryptolocker.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\demka.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\demka.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 452 wrote to memory of 1720 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_c70ac706b4157167d03227532fc5a71e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
| PID 452 wrote to memory of 1720 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_c70ac706b4157167d03227532fc5a71e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
| PID 452 wrote to memory of 1720 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_c70ac706b4157167d03227532fc5a71e_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-10_c70ac706b4157167d03227532fc5a71e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_c70ac706b4157167d03227532fc5a71e_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\demka.exe
"C:\Users\Admin\AppData\Local\Temp\demka.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 --mojo-platform-channel-handle=4136 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| GB | 172.217.169.74:443 | tcp | |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ttms.org | udp |
| US | 35.215.114.222:443 | ttms.org | tcp |
| US | 8.8.8.8:53 | 222.114.215.35.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.97.55.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 13.107.253.64:443 | tcp | |
| US | 8.8.8.8:53 | 144.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 195.98.74.40.in-addr.arpa | udp |
Files
memory/452-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/452-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/452-2-0x0000000000400000-0x0000000000406000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\demka.exe
| MD5 | 3424207893b64a11f8bcb4538a86477d |
| SHA1 | e5833fdc92822500598f2a1b596cdf21a7ba9dc0 |
| SHA256 | 1830c36acd4a2425c92b3b133bed7c3d5990d87c0f1e9bf1fde19a9bec7bdc85 |
| SHA512 | 87918f07baebd97ab1a6d9fc75ed80a5e93535ec23155809cf6ae106ad0b87ac0eba5b6b283c80a5a0cc5d450abae8bffbb0acd3f1e866fb5eb12dfbccf06f40 |
memory/1720-25-0x00000000006F0000-0x00000000006F6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\medkem.exe
| MD5 | 16cdf4d2a37b9fbcb247c515277c4915 |
| SHA1 | 51532c70c8fb7b87ec740a5241b3ccd243ec466d |
| SHA256 | 53b33e8fded234c01d97ba1cd36b99baa4da06237249727be1caf37bd2776d4e |
| SHA512 | e3c065408fba9aa45441af570206ebbc6d7644ef7788608ee36e2919f2124e67696aa3a59f51689646b0fe0758919d9bc278b90137f21bbc2fbb9e82b57bc257 |