Analysis Overview
SHA256
057a66d3ff9ba0c8ebeb0d5e72f5a5533a92ffec743302a2464e48c4c5b66d4e
Threat Level: Known bad
The file 2024-06-02_e6332a919f6d13faa300c658360d47e2_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 WriteProcessMemory
Suspicious use of UnmapMainImage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-02 04:47
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
2024-06-02 04:47
Reported
2024-06-02 04:50
Platform
win7-20240220-en
Max time kernel
119s
Max time network
120s
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\2024-06-02_e6332a919f6d13faa300c658360d47e2_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\2024-06-02_e6332a919f6d13faa300c658360d47e2_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 2820 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\gewos.exe |
| PID 2820 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\gewos.exe |
| PID 2820 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\gewos.exe |
| PID 2820 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\gewos.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_e6332a919f6d13faa300c658360d47e2_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/2820-0-0x0000000000300000-0x0000000000306000-memory.dmp
memory/2820-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/2820-8-0x0000000000300000-0x0000000000306000-memory.dmp
\Users\Admin\AppData\Local\Temp\gewos.exe
| MD5 | 07f117d9d0fc98289ea59ac0065219ef |
| SHA1 | fc64ff823c7284aaf35e9c86e1764b12ba8ae19b |
| SHA256 | 567bae3e4a48fde04297939b3fe5b34c8c3ef1c47dba555bc33905ba0b20c9ff |
| SHA512 | da93f5679a459b20e0bc262a1c27635f74228c7bd56774d7a05bf8619b41f5cc968f77073ac79b9c86095c18aab805d5e02187a580ac804bc29c28f4ded03d11 |
memory/2616-23-0x0000000000290000-0x0000000000296000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-02 04:47
Reported
2024-06-02 04:50
Platform
win10v2004-20240508-en
Max time kernel
133s
Max time network
125s
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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\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 3452 wrote to memory of 4636 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\gewos.exe |
| PID 3452 wrote to memory of 4636 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\gewos.exe |
| PID 3452 wrote to memory of 4636 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\gewos.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_e6332a919f6d13faa300c658360d47e2_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 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | nasap.net | udp |
| US | 35.212.119.5:443 | nasap.net | tcp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 5.119.212.35.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 226.21.18.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 97.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| 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 | 31.251.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
Files
memory/3452-0-0x0000000002160000-0x0000000002166000-memory.dmp
memory/3452-1-0x0000000000400000-0x0000000000406000-memory.dmp
memory/3452-8-0x0000000002160000-0x0000000002166000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\gewos.exe
| MD5 | 07f117d9d0fc98289ea59ac0065219ef |
| SHA1 | fc64ff823c7284aaf35e9c86e1764b12ba8ae19b |
| SHA256 | 567bae3e4a48fde04297939b3fe5b34c8c3ef1c47dba555bc33905ba0b20c9ff |
| SHA512 | da93f5679a459b20e0bc262a1c27635f74228c7bd56774d7a05bf8619b41f5cc968f77073ac79b9c86095c18aab805d5e02187a580ac804bc29c28f4ded03d11 |
memory/4636-25-0x00000000020E0000-0x00000000020E6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\gewosik.exe
| MD5 | 341f0d964572da44a1c9650341665037 |
| SHA1 | 5003d7dc9b5d6dbbfb37403c8222ba83fa3d4b0f |
| SHA256 | cb213ed9ca3a1892286c1fd6552b8ba339f4e62a2d72c9c9151c4848edee4ee3 |
| SHA512 | a374a3d0c18618c9550b7cf88ce4005f42af135e46c08d08c1be7b3f3012f1184fd82f126168f280da7ead6fbddd5bebdc55547bff3d7c6a440d6f9746479353 |