Analysis Overview
SHA256
2dbd3499a95db5520d651f827c94496c89382759cf910c69ec27cc320710d391
Threat Level: Known bad
The file 2024-06-01_6ca26d69ffe24566a19c28869500b828_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
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-01 20:04
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: behavioral2
Detonation Overview
Submitted
2024-06-01 20:04
Reported
2024-06-01 20:07
Platform
win10v2004-20240426-en
Max time kernel
150s
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-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\gewos.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\gewos.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3216 wrote to memory of 5076 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\gewos.exe |
| PID 3216 wrote to memory of 5076 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\gewos.exe |
| PID 3216 wrote to memory of 5076 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\gewos.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\gewos.exe
"C:\Users\Admin\AppData\Local\Temp\gewos.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | nasap.net | udp |
| US | 35.212.119.5:443 | nasap.net | tcp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 5.119.212.35.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 226.21.18.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| 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 | 8.8.8.8:53 | 8.24.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | udp |
Files
memory/3216-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/3216-2-0x0000000002EA0000-0x0000000002EA6000-memory.dmp
memory/3216-1-0x0000000000400000-0x0000000000406000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\gewos.exe
| MD5 | c3764873bd8a61ddfac7b2567dc805a9 |
| SHA1 | 223ef2d4277a9c572c5e09da0f91bd8182e9f755 |
| SHA256 | 261ed4c7e64d90816e079122e2e8e891cb75fc513da9c226e94d0f171779c9eb |
| SHA512 | 616b0a624773a94d1019783ea4d4046c4473d2188792829c889d308b1e195823b02937c639eb570078f69ddd04c5a9ca73a5723ce0886cd0ad30d43fcf2b4ca4 |
memory/5076-25-0x0000000002D60000-0x0000000002D66000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\gewosik.exe
| MD5 | 562001dc7e0704b16170f68bed259c02 |
| SHA1 | 0e98c6e294c299608d650314640ef8efe0c9f212 |
| SHA256 | 4ebbb50c4055d9838d2c43058bbb0cff8ebd7eed465cefe4b9e2a639424759bc |
| SHA512 | 48c2aa64eb8f0805497bff4b7dffe34546a62cdb691329cc6e3c69bf6169e46c80405d0918776c755923a007f1e5224290788672de972fe567414c730252760a |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-01 20:04
Reported
2024-06-01 20:07
Platform
win7-20240221-en
Max time kernel
122s
Max time network
128s
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\gewos.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\gewos.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2740 wrote to memory of 2116 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\gewos.exe |
| PID 2740 wrote to memory of 2116 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\gewos.exe |
| PID 2740 wrote to memory of 2116 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\gewos.exe |
| PID 2740 wrote to memory of 2116 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\gewos.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\gewos.exe
"C:\Users\Admin\AppData\Local\Temp\gewos.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | nasap.net | udp |
| US | 35.212.119.5:443 | nasap.net | tcp |
Files
memory/2740-0-0x0000000000260000-0x0000000000266000-memory.dmp
memory/2740-8-0x0000000000260000-0x0000000000266000-memory.dmp
memory/2740-1-0x0000000000400000-0x0000000000406000-memory.dmp
\Users\Admin\AppData\Local\Temp\gewos.exe
| MD5 | c3764873bd8a61ddfac7b2567dc805a9 |
| SHA1 | 223ef2d4277a9c572c5e09da0f91bd8182e9f755 |
| SHA256 | 261ed4c7e64d90816e079122e2e8e891cb75fc513da9c226e94d0f171779c9eb |
| SHA512 | 616b0a624773a94d1019783ea4d4046c4473d2188792829c889d308b1e195823b02937c639eb570078f69ddd04c5a9ca73a5723ce0886cd0ad30d43fcf2b4ca4 |
memory/2116-23-0x0000000000350000-0x0000000000356000-memory.dmp