Analysis Overview
SHA256
bf3fe4a3db6ac1b4a633bdbc7929b8cc56359ababd98dba3446c2167a7e56864
Threat Level: Known bad
The file 2024-06-07_14200b1e1f17abe5c85ac1cae3d31768_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
UPX dump on OEP (original entry point)
Detection of Cryptolocker Samples
Detection of CryptoLocker Variants
UPX dump on OEP (original entry point)
Detection of Cryptolocker Samples
Loads dropped DLL
UPX packed file
Executes dropped EXE
Checks computer location settings
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-07 16:31
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
2024-06-07 16:31
Reported
2024-06-07 16:47
Platform
win7-20240215-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 |
| 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\2024-06-07_14200b1e1f17abe5c85ac1cae3d31768_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 2760 wrote to memory of 1696 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-07_14200b1e1f17abe5c85ac1cae3d31768_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2760 wrote to memory of 1696 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-07_14200b1e1f17abe5c85ac1cae3d31768_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2760 wrote to memory of 1696 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-07_14200b1e1f17abe5c85ac1cae3d31768_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2760 wrote to memory of 1696 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-07_14200b1e1f17abe5c85ac1cae3d31768_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-07_14200b1e1f17abe5c85ac1cae3d31768_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-07_14200b1e1f17abe5c85ac1cae3d31768_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/2760-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2760-1-0x0000000000240000-0x0000000000246000-memory.dmp
memory/2760-2-0x0000000000240000-0x0000000000246000-memory.dmp
memory/2760-3-0x0000000000290000-0x0000000000296000-memory.dmp
\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | 1078f5062e58d12161fe32e5fcaa80e5 |
| SHA1 | 97d5e36d79543c427ada273817c6020743815b84 |
| SHA256 | e95a6d9308fe20c680281b2adbeff02b752f32f4fe286d2cd73486b939f7607e |
| SHA512 | 420c8262cfaf04ab73fbf2da31edb76af1ef438637e5c6d3d03e36fde95020678634be7193910902f6770a81e6b7e88156b9aa92ab3ba2b7a5027cb76b2f96d9 |
memory/2760-13-0x0000000000570000-0x0000000000580000-memory.dmp
memory/2760-16-0x0000000000500000-0x0000000000510000-memory.dmp
memory/1696-26-0x0000000000500000-0x0000000000510000-memory.dmp
memory/1696-25-0x00000000001D0000-0x00000000001D6000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-07 16:31
Reported
2024-06-07 16:47
Platform
win10v2004-20240426-en
Max time kernel
148s
Max time network
154s
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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-07_14200b1e1f17abe5c85ac1cae3d31768_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 |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3860 wrote to memory of 828 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-07_14200b1e1f17abe5c85ac1cae3d31768_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 3860 wrote to memory of 828 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-07_14200b1e1f17abe5c85ac1cae3d31768_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 3860 wrote to memory of 828 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-07_14200b1e1f17abe5c85ac1cae3d31768_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-07_14200b1e1f17abe5c85ac1cae3d31768_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-07_14200b1e1f17abe5c85ac1cae3d31768_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 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 54.209.32.212:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 64.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 52.71.57.184:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 54.209.32.212:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 105.83.221.88.in-addr.arpa | udp |
| US | 52.71.57.184:443 | emrlogistics.com | tcp |
| US | 54.209.32.212:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 52.71.57.184:443 | emrlogistics.com | tcp |
| US | 54.209.32.212:443 | emrlogistics.com | tcp |
| US | 52.71.57.184:443 | emrlogistics.com | tcp |
Files
memory/3860-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/3860-1-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/3860-2-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/3860-9-0x00000000004D0000-0x00000000004D6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | 1078f5062e58d12161fe32e5fcaa80e5 |
| SHA1 | 97d5e36d79543c427ada273817c6020743815b84 |
| SHA256 | e95a6d9308fe20c680281b2adbeff02b752f32f4fe286d2cd73486b939f7607e |
| SHA512 | 420c8262cfaf04ab73fbf2da31edb76af1ef438637e5c6d3d03e36fde95020678634be7193910902f6770a81e6b7e88156b9aa92ab3ba2b7a5027cb76b2f96d9 |
memory/828-18-0x0000000000500000-0x0000000000510000-memory.dmp
memory/3860-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/828-20-0x00000000005C0000-0x00000000005C6000-memory.dmp
memory/828-26-0x00000000005A0000-0x00000000005A6000-memory.dmp
memory/828-27-0x0000000000500000-0x0000000000510000-memory.dmp