Analysis Overview
SHA256
81b87de5f20ca243f95d8d87597191a84f99843b97d6b7004415bab761fc9979
Threat Level: Known bad
The file 2024-06-03_7e01817dc3ddb01bff675c1974210154_cryptolocker was found to be: Known bad.
Malicious Activity Summary
UPX dump on OEP (original entry point)
Detection of CryptoLocker Variants
Detection of Cryptolocker Samples
UPX dump on OEP (original entry point)
Detection of CryptoLocker Variants
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 10:33
Signatures
Detection of CryptoLocker Variants
| 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 |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-03 10:33
Reported
2024-06-03 10:36
Platform
win7-20240508-en
Max time kernel
148s
Max time network
148s
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 |
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_7e01817dc3ddb01bff675c1974210154_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2036 wrote to memory of 2092 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_7e01817dc3ddb01bff675c1974210154_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2036 wrote to memory of 2092 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_7e01817dc3ddb01bff675c1974210154_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2036 wrote to memory of 2092 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_7e01817dc3ddb01bff675c1974210154_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2036 wrote to memory of 2092 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_7e01817dc3ddb01bff675c1974210154_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-03_7e01817dc3ddb01bff675c1974210154_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_7e01817dc3ddb01bff675c1974210154_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 | 3.130.253.23:443 | emrlogistics.com | tcp |
| US | 3.130.204.160:443 | emrlogistics.com | tcp |
| US | 3.130.253.23:443 | emrlogistics.com | tcp |
| US | 3.130.204.160:443 | emrlogistics.com | tcp |
| US | 3.130.253.23:443 | emrlogistics.com | tcp |
| US | 3.130.204.160:443 | emrlogistics.com | tcp |
| US | 3.130.253.23:443 | emrlogistics.com | tcp |
| US | 3.130.204.160:443 | emrlogistics.com | tcp |
Files
memory/2036-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2036-1-0x0000000000420000-0x0000000000426000-memory.dmp
memory/2036-2-0x0000000000460000-0x0000000000466000-memory.dmp
memory/2036-9-0x0000000000420000-0x0000000000426000-memory.dmp
\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | d57f541d8e4fbdc01b70f1af9594c1e9 |
| SHA1 | 8724ac5296ce819aeaf3472c540213c4c52bbc3f |
| SHA256 | b1cd45893b63aa5a20fa469d78141cc49eed1b426f81c034d80289ef20a400a2 |
| SHA512 | c46d5b2c2786414307038fc00ff13da7d12c7f7ee4994d04dd01abf63992c112e06bc25af1dbb17d6fd03a4aae35d266e4090ff00d5c6c8f59d491d84821c9e4 |
memory/2036-16-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2092-18-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2092-26-0x0000000000320000-0x0000000000326000-memory.dmp
memory/2092-19-0x0000000000370000-0x0000000000376000-memory.dmp
memory/2092-27-0x0000000000500000-0x0000000000510000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-03 10:33
Reported
2024-06-03 10:36
Platform
win10v2004-20240426-en
Max time kernel
148s
Max time network
152s
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 |
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 |
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\2024-06-03_7e01817dc3ddb01bff675c1974210154_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 |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 540 wrote to memory of 4996 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_7e01817dc3ddb01bff675c1974210154_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 540 wrote to memory of 4996 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_7e01817dc3ddb01bff675c1974210154_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 540 wrote to memory of 4996 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-03_7e01817dc3ddb01bff675c1974210154_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-03_7e01817dc3ddb01bff675c1974210154_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_7e01817dc3ddb01bff675c1974210154_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 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 3.130.253.23:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 3.130.204.160:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 3.130.253.23:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 106.90.14.23.in-addr.arpa | udp |
| US | 3.130.204.160:443 | emrlogistics.com | tcp |
| US | 3.130.253.23:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 91.90.14.23.in-addr.arpa | udp |
| US | 3.130.204.160:443 | emrlogistics.com | tcp |
| US | 3.130.253.23:443 | emrlogistics.com | tcp |
| US | 3.130.204.160:443 | emrlogistics.com | tcp |
Files
memory/540-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/540-1-0x0000000000490000-0x0000000000496000-memory.dmp
memory/540-2-0x0000000000490000-0x0000000000496000-memory.dmp
memory/540-3-0x00000000005E0000-0x00000000005E6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | d57f541d8e4fbdc01b70f1af9594c1e9 |
| SHA1 | 8724ac5296ce819aeaf3472c540213c4c52bbc3f |
| SHA256 | b1cd45893b63aa5a20fa469d78141cc49eed1b426f81c034d80289ef20a400a2 |
| SHA512 | c46d5b2c2786414307038fc00ff13da7d12c7f7ee4994d04dd01abf63992c112e06bc25af1dbb17d6fd03a4aae35d266e4090ff00d5c6c8f59d491d84821c9e4 |
memory/540-16-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4996-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4996-20-0x00000000005D0000-0x00000000005D6000-memory.dmp
memory/4996-26-0x00000000005B0000-0x00000000005B6000-memory.dmp
memory/4996-27-0x0000000000500000-0x0000000000510000-memory.dmp