Analysis Overview
SHA256
21fbbb42740331a233b03f870b5f6569da8e4bd3685a780cd4360b9cfc02fe65
Threat Level: Known bad
The file 2024-06-09_e39669415f908c3c7975f2977e207ca7_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of Cryptolocker Samples
Detection of CryptoLocker Variants
Detection of Cryptolocker Samples
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
2024-06-09 07:35
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 |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-09 07:35
Reported
2024-06-09 07:38
Platform
win7-20240221-en
Max time kernel
133s
Max time network
144s
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 |
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\2024-06-09_e39669415f908c3c7975f2977e207ca7_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1640 wrote to memory of 2040 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-09_e39669415f908c3c7975f2977e207ca7_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 1640 wrote to memory of 2040 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-09_e39669415f908c3c7975f2977e207ca7_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 1640 wrote to memory of 2040 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-09_e39669415f908c3c7975f2977e207ca7_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 1640 wrote to memory of 2040 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-09_e39669415f908c3c7975f2977e207ca7_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-09_e39669415f908c3c7975f2977e207ca7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-09_e39669415f908c3c7975f2977e207ca7_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 | 34.205.242.146:443 | emrlogistics.com | tcp |
| US | 54.161.222.85:443 | emrlogistics.com | tcp |
| US | 34.205.242.146:443 | emrlogistics.com | tcp |
| US | 54.161.222.85:443 | emrlogistics.com | tcp |
| US | 34.205.242.146:443 | emrlogistics.com | tcp |
| US | 54.161.222.85:443 | emrlogistics.com | tcp |
| US | 34.205.242.146:443 | emrlogistics.com | tcp |
Files
memory/1640-0-0x0000000000500000-0x000000000050B000-memory.dmp
memory/1640-1-0x0000000000420000-0x0000000000426000-memory.dmp
memory/1640-3-0x0000000000450000-0x0000000000456000-memory.dmp
memory/1640-2-0x0000000000420000-0x0000000000426000-memory.dmp
\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | c9287127c7c06d1a0e3ab26a8f62903e |
| SHA1 | 0e09055b04abdd2c835b0fe5f480d00542edf193 |
| SHA256 | ab0a153fd3570efe34b2a6a115c9ee63213752f5cc6fb6e1b4002db321f446af |
| SHA512 | 896064ec8f5cb77f41a5a7b3d5426cb4065da447ce1d1ca581d702da97b2cd6d41198deecad0bef5732cd016c7b542250ddc62197456e890b62f18deda1ed6b0 |
memory/1640-14-0x0000000001FE0000-0x0000000001FEB000-memory.dmp
memory/2040-17-0x0000000000500000-0x000000000050B000-memory.dmp
memory/1640-16-0x0000000000500000-0x000000000050B000-memory.dmp
memory/2040-19-0x00000000002D0000-0x00000000002D6000-memory.dmp
memory/2040-20-0x0000000000340000-0x0000000000346000-memory.dmp
memory/2040-27-0x0000000000500000-0x000000000050B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-09 07:35
Reported
2024-06-09 07:38
Platform
win10v2004-20240508-en
Max time kernel
148s
Max time network
157s
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 |
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\2024-06-09_e39669415f908c3c7975f2977e207ca7_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 4140 wrote to memory of 736 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-09_e39669415f908c3c7975f2977e207ca7_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 4140 wrote to memory of 736 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-09_e39669415f908c3c7975f2977e207ca7_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 4140 wrote to memory of 736 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-09_e39669415f908c3c7975f2977e207ca7_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-09_e39669415f908c3c7975f2977e207ca7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-09_e39669415f908c3c7975f2977e207ca7_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 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 34.205.242.146:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 54.161.222.85:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 34.205.242.146:443 | emrlogistics.com | tcp |
| US | 54.161.222.85:443 | emrlogistics.com | tcp |
| US | 34.205.242.146:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 144.107.17.2.in-addr.arpa | udp |
| US | 54.161.222.85:443 | emrlogistics.com | tcp |
| US | 34.205.242.146:443 | emrlogistics.com | tcp |
| US | 54.161.222.85:443 | emrlogistics.com | tcp |
Files
memory/4140-0-0x0000000000500000-0x000000000050B000-memory.dmp
memory/4140-1-0x00000000006A0000-0x00000000006A6000-memory.dmp
memory/4140-2-0x00000000006C0000-0x00000000006C6000-memory.dmp
memory/4140-9-0x00000000006A0000-0x00000000006A6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | c9287127c7c06d1a0e3ab26a8f62903e |
| SHA1 | 0e09055b04abdd2c835b0fe5f480d00542edf193 |
| SHA256 | ab0a153fd3570efe34b2a6a115c9ee63213752f5cc6fb6e1b4002db321f446af |
| SHA512 | 896064ec8f5cb77f41a5a7b3d5426cb4065da447ce1d1ca581d702da97b2cd6d41198deecad0bef5732cd016c7b542250ddc62197456e890b62f18deda1ed6b0 |
memory/736-17-0x0000000000500000-0x000000000050B000-memory.dmp
memory/4140-18-0x0000000000500000-0x000000000050B000-memory.dmp
memory/736-20-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/736-21-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/736-27-0x0000000000500000-0x000000000050B000-memory.dmp