Analysis Overview
SHA256
b105116ea0a9e80eae074b7337f2c23cfbdb8c2a898d0c426f5744f73c471d55
Threat Level: Known bad
The file 2024-06-13_7133857c0609a94ab0fef4dd6d7c0fc1_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of CryptoLocker Variants
Loads dropped DLL
Executes dropped EXE
Checks computer location settings
Unsigned PE
Enumerates physical storage devices
Suspicious use of UnmapMainImage
Modifies system certificate store
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
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 |
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
118s
Max time network
119s
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\2024-06-13_7133857c0609a94ab0fef4dd6d7c0fc1_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\2024-06-13_7133857c0609a94ab0fef4dd6d7c0fc1_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 1992 wrote to memory of 2524 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_7133857c0609a94ab0fef4dd6d7c0fc1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
| PID 1992 wrote to memory of 2524 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_7133857c0609a94ab0fef4dd6d7c0fc1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
| PID 1992 wrote to memory of 2524 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_7133857c0609a94ab0fef4dd6d7c0fc1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
| PID 1992 wrote to memory of 2524 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_7133857c0609a94ab0fef4dd6d7c0fc1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_7133857c0609a94ab0fef4dd6d7c0fc1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_7133857c0609a94ab0fef4dd6d7c0fc1_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/1992-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/1992-8-0x00000000003F0000-0x00000000003F6000-memory.dmp
memory/1992-0-0x00000000003F0000-0x00000000003F6000-memory.dmp
\Users\Admin\AppData\Local\Temp\demka.exe
| MD5 | 8b3072034fea1aebfb42850b890180b3 |
| SHA1 | 111afaf9c1c17466e6bdf6da8ec2a246efef424d |
| SHA256 | b470bf66168e6c5f65003ba24790f483bb8eb473804f03fd8983c956c6f4bccb |
| SHA512 | c1a812605042747fd85eabd01f59c2859e9b0cc3bad14ce288c950db791be509351c2b41d899fc052fd9a86401e46bdf21e7df50975299e531d7b0c67e5dd201 |
memory/2524-23-0x0000000000290000-0x0000000000296000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-13 03:37
Reported
2024-06-13 03:39
Platform
win10v2004-20240226-en
Max time kernel
144s
Max time network
148s
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\demka.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\2024-06-13_7133857c0609a94ab0fef4dd6d7c0fc1_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 1188 wrote to memory of 2320 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_7133857c0609a94ab0fef4dd6d7c0fc1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
| PID 1188 wrote to memory of 2320 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_7133857c0609a94ab0fef4dd6d7c0fc1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
| PID 1188 wrote to memory of 2320 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_7133857c0609a94ab0fef4dd6d7c0fc1_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\demka.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_7133857c0609a94ab0fef4dd6d7c0fc1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_7133857c0609a94ab0fef4dd6d7c0fc1_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=4240 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ttms.org | udp |
| US | 8.8.8.8:53 | 203.107.17.2.in-addr.arpa | 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 | 11.97.55.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| GB | 142.250.180.10:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 10.180.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 91.65.42.20.in-addr.arpa | udp |
Files
memory/1188-0-0x0000000002350000-0x0000000002356000-memory.dmp
memory/1188-1-0x0000000002350000-0x0000000002356000-memory.dmp
memory/1188-2-0x0000000000400000-0x0000000000406000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\demka.exe
| MD5 | 8b3072034fea1aebfb42850b890180b3 |
| SHA1 | 111afaf9c1c17466e6bdf6da8ec2a246efef424d |
| SHA256 | b470bf66168e6c5f65003ba24790f483bb8eb473804f03fd8983c956c6f4bccb |
| SHA512 | c1a812605042747fd85eabd01f59c2859e9b0cc3bad14ce288c950db791be509351c2b41d899fc052fd9a86401e46bdf21e7df50975299e531d7b0c67e5dd201 |
memory/2320-25-0x0000000002D60000-0x0000000002D66000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\medkem.exe
| MD5 | 59cd7116f1b9d03cdcba7cee2ac60bd5 |
| SHA1 | 4b4d0a01a953426a04f50b9061c7d29405964177 |
| SHA256 | 0af8247a9188818c837e16aedce49f3d7f4fd7ddaa27127cb723f8e5ba7dbb3a |
| SHA512 | 692eeb8b2a15717da1a39de23960f2e007f7e22b4a6f3e68806bd8a8e34ff38fff6965f4a3b20f96edc557521941bc65e570c5a49bd1cfe1dd7cb7572d273e99 |