Analysis Overview
SHA256
56e94a99969b8ebeca355493e48414975a1b8e9bd526d3f33355ac5c78c62a7b
Threat Level: Known bad
The file 2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of Cryptolocker Samples
UPX dump on OEP (original entry point)
Detection of CryptoLocker Variants
Detection of Cryptolocker Samples
UPX dump on OEP (original entry point)
UPX packed file
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-03 13:31
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detection of Cryptolocker Samples
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
UPX dump on OEP (original entry point)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
UPX packed file
| 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
2024-06-03 13:31
Reported
2024-06-03 13:33
Platform
win7-20240221-en
Max time kernel
149s
Max time network
155s
Command Line
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Detection of Cryptolocker Samples
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
UPX dump on OEP (original entry point)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| 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\asih.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2264 wrote to memory of 2900 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2264 wrote to memory of 2900 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2264 wrote to memory of 2900 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2264 wrote to memory of 2900 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 3.19.116.195:443 | emrlogistics.com | tcp |
| US | 3.18.7.81:443 | emrlogistics.com | tcp |
| US | 3.19.116.195:443 | emrlogistics.com | tcp |
| US | 3.18.7.81:443 | emrlogistics.com | tcp |
| US | 3.19.116.195:443 | emrlogistics.com | tcp |
| US | 3.18.7.81:443 | emrlogistics.com | tcp |
| US | 3.19.116.195:443 | emrlogistics.com | tcp |
| US | 3.18.7.81:443 | emrlogistics.com | tcp |
Files
memory/2264-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2264-1-0x0000000000240000-0x0000000000246000-memory.dmp
memory/2264-2-0x0000000000270000-0x0000000000276000-memory.dmp
memory/2264-9-0x0000000000240000-0x0000000000246000-memory.dmp
\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | 2917a1bd75e59d6e4af6e4966a5bae70 |
| SHA1 | 452dac577cb85388b0d86f69fbb35dd1bbdb3731 |
| SHA256 | 5d473e65b8bfbdf2d43e25551d695f40c6988325cf1f0294b34fde636a0f8dd8 |
| SHA512 | 5286e6165fd752186ae1442343a5072048c7d0f514ccd6587faff3cc47a36ba44ac43d5e51c44e991508e766135f92bc091e298ffa19c300c407cf7be474c93a |
memory/2264-16-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2900-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2900-26-0x00000000002C0000-0x00000000002C6000-memory.dmp
memory/2900-19-0x00000000002F0000-0x00000000002F6000-memory.dmp
memory/2264-14-0x0000000002480000-0x0000000002490000-memory.dmp
memory/2900-27-0x0000000000500000-0x0000000000510000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-03 13:31
Reported
2024-06-03 13:33
Platform
win10v2004-20240508-en
Max time kernel
149s
Max time network
151s
Command Line
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Detection of Cryptolocker Samples
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
UPX dump on OEP (original entry point)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\asih.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4188 wrote to memory of 2864 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 4188 wrote to memory of 2864 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 4188 wrote to memory of 2864 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_cf0161537c0efbaba9c6d65483acd00d_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 3.19.116.195:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 203.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.177.190.20.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 | 237.197.79.204.in-addr.arpa | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 3.18.7.81:443 | emrlogistics.com | tcp |
| 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 | 3.19.116.195:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 152.107.17.2.in-addr.arpa | udp |
| US | 3.18.7.81:443 | emrlogistics.com | tcp |
| US | 3.19.116.195:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.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 |
| US | 8.8.8.8:53 | 58.99.105.20.in-addr.arpa | udp |
| US | 3.18.7.81:443 | emrlogistics.com | tcp |
| US | 3.19.116.195:443 | emrlogistics.com | tcp |
| US | 3.18.7.81:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 26.173.189.20.in-addr.arpa | udp |
Files
memory/4188-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4188-1-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/4188-2-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/4188-9-0x00000000004D0000-0x00000000004D6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | 2917a1bd75e59d6e4af6e4966a5bae70 |
| SHA1 | 452dac577cb85388b0d86f69fbb35dd1bbdb3731 |
| SHA256 | 5d473e65b8bfbdf2d43e25551d695f40c6988325cf1f0294b34fde636a0f8dd8 |
| SHA512 | 5286e6165fd752186ae1442343a5072048c7d0f514ccd6587faff3cc47a36ba44ac43d5e51c44e991508e766135f92bc091e298ffa19c300c407cf7be474c93a |
memory/4188-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2864-19-0x00000000007D0000-0x00000000007D6000-memory.dmp
memory/2864-25-0x00000000006A0000-0x00000000006A6000-memory.dmp
memory/2864-26-0x0000000000500000-0x0000000000510000-memory.dmp