Analysis Overview
SHA256
4ae36a1b8b0d67615388caa82cf970cbfeb0948c6d060fdabfa0a8236dc7adef
Threat Level: Known bad
The file 2024-06-13_4fb7536f96f1a11faa58e189f2288b74_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)
Loads dropped DLL
Checks computer location settings
UPX packed file
Executes dropped EXE
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-13 03:33
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 |
Detection of Cryptolocker Samples
| Description | Indicator | Process | Target |
| 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 |
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 |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-13 03:33
Reported
2024-06-13 03:35
Platform
win7-20240508-en
Max time kernel
147s
Max time network
149s
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\2024-06-13_4fb7536f96f1a11faa58e189f2288b74_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 2060 wrote to memory of 2700 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_4fb7536f96f1a11faa58e189f2288b74_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2060 wrote to memory of 2700 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_4fb7536f96f1a11faa58e189f2288b74_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2060 wrote to memory of 2700 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_4fb7536f96f1a11faa58e189f2288b74_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 2060 wrote to memory of 2700 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_4fb7536f96f1a11faa58e189f2288b74_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_4fb7536f96f1a11faa58e189f2288b74_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_4fb7536f96f1a11faa58e189f2288b74_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 | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
Files
memory/2060-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2060-1-0x00000000001D0000-0x00000000001D6000-memory.dmp
memory/2060-3-0x00000000002A0000-0x00000000002A6000-memory.dmp
memory/2060-2-0x00000000001D0000-0x00000000001D6000-memory.dmp
\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | 15185ddc3e4b8a4de7163a75e68dc1fc |
| SHA1 | 7a202351854704e8453afcc59762bc162b0f39b8 |
| SHA256 | 5b0fd32c359ab81efa4b25b075752e3a29a6c054e03eb74cde36f540afdf6636 |
| SHA512 | 776cf8933863f06f9509ca8fc940b71f3de0230ae3663b9173e3ff8f4c655bbf4ee7228c883a646b8a1c075e07899e80b751314fb4267e9da55f3fccf9bc971f |
memory/2700-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2060-16-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2700-19-0x0000000000280000-0x0000000000286000-memory.dmp
memory/2700-26-0x0000000000240000-0x0000000000246000-memory.dmp
memory/2700-27-0x0000000000500000-0x0000000000510000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-13 03:33
Reported
2024-06-13 03:35
Platform
win10v2004-20240611-en
Max time kernel
147s
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 |
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-1-5-21-2447855248-390457009-3660902674-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-13_4fb7536f96f1a11faa58e189f2288b74_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 4936 wrote to memory of 2356 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_4fb7536f96f1a11faa58e189f2288b74_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 4936 wrote to memory of 2356 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_4fb7536f96f1a11faa58e189f2288b74_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 4936 wrote to memory of 2356 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_4fb7536f96f1a11faa58e189f2288b74_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_4fb7536f96f1a11faa58e189f2288b74_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_4fb7536f96f1a11faa58e189f2288b74_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 | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 3.18.7.81:443 | emrlogistics.com | tcp |
| 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 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 3.19.116.195:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.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 | 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 |
Files
memory/4936-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4936-1-0x00000000004D0000-0x00000000004D6000-memory.dmp
memory/4936-2-0x00000000004F0000-0x00000000004F6000-memory.dmp
memory/4936-9-0x00000000004D0000-0x00000000004D6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | 15185ddc3e4b8a4de7163a75e68dc1fc |
| SHA1 | 7a202351854704e8453afcc59762bc162b0f39b8 |
| SHA256 | 5b0fd32c359ab81efa4b25b075752e3a29a6c054e03eb74cde36f540afdf6636 |
| SHA512 | 776cf8933863f06f9509ca8fc940b71f3de0230ae3663b9173e3ff8f4c655bbf4ee7228c883a646b8a1c075e07899e80b751314fb4267e9da55f3fccf9bc971f |
memory/4936-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2356-25-0x0000000000500000-0x0000000000510000-memory.dmp