Analysis Overview
SHA256
e52eb26a8ee2d0becc4d385b6a80713ba6a9596afda22dc6a4ed9acc6b5a0e9b
Threat Level: Known bad
The file 2024-06-10_07736eb5cf17a27831daade0d377be51_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
Modifies system certificate store
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-10 06:25
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 06:22
Reported
2024-06-10 06:38
Platform
win7-20240508-en
Max time kernel
122s
Max time network
122s
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_07736eb5cf17a27831daade0d377be51_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_07736eb5cf17a27831daade0d377be51_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 1276 wrote to memory of 2816 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
| PID 1276 wrote to memory of 2816 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
| PID 1276 wrote to memory of 2816 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
| PID 1276 wrote to memory of 2816 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_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/1276-0-0x0000000000290000-0x0000000000296000-memory.dmp
memory/1276-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/1276-7-0x0000000000290000-0x0000000000296000-memory.dmp
\Users\Admin\AppData\Local\Temp\demka.exe
| MD5 | 1e5d9f0a015973378d5a03e496b25543 |
| SHA1 | af902f323d058c552e9cb5f5dac3c3f171ba0001 |
| SHA256 | cd02d9a83cc8bbc902766a039cde59f59f3f3633252404dee5569de9c83ba915 |
| SHA512 | fe467665030928a1a469da9b582e0a0d27cc4f5223826794a45c0fb2f392fc6f28d8de274c6cc5bc0c5aab0a4c7327baf2aa1956ab4b53f183a6725397b0d0a6 |
memory/2816-23-0x0000000000410000-0x0000000000416000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-10 06:22
Reported
2024-06-10 06:39
Platform
win10v2004-20240226-en
Max time kernel
23s
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_07736eb5cf17a27831daade0d377be51_cryptolocker.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 3544 wrote to memory of 1204 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
| PID 3544 wrote to memory of 1204 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
| PID 3544 wrote to memory of 1204 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_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=4004 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 97.17.167.52.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 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 222.114.215.35.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.97.55.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| GB | 142.250.187.202:443 | tcp | |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 144.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 195.98.74.40.in-addr.arpa | udp |
Files
memory/3544-0-0x0000000000740000-0x0000000000746000-memory.dmp
memory/3544-1-0x0000000000740000-0x0000000000746000-memory.dmp
memory/3544-2-0x0000000000400000-0x0000000000406000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\demka.exe
| MD5 | 1e5d9f0a015973378d5a03e496b25543 |
| SHA1 | af902f323d058c552e9cb5f5dac3c3f171ba0001 |
| SHA256 | cd02d9a83cc8bbc902766a039cde59f59f3f3633252404dee5569de9c83ba915 |
| SHA512 | fe467665030928a1a469da9b582e0a0d27cc4f5223826794a45c0fb2f392fc6f28d8de274c6cc5bc0c5aab0a4c7327baf2aa1956ab4b53f183a6725397b0d0a6 |
memory/1204-25-0x0000000002210000-0x0000000002216000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\medkem.exe
| MD5 | d808d9a55784b6d67a0b030f7d802673 |
| SHA1 | f7280cb07462353336cb58f567484ec69d2232b5 |
| SHA256 | bdea95bc2512fa84d9793027746019e462dde6bd563ad7c6cf61f20dd0e223c1 |
| SHA512 | 76bc9ea582e12eddced8d6c89c1cde093d88c1e45592b93dadf12638299f0c442e65839a63ca0adfdb2f0f8bd1114fcbfaa9ebe0fca590c6a9c57300e9474f30 |