Analysis Overview
SHA256
b335c2a40e33f28f6155743c330b5fd322b6516d41764f504ef2e9398e425a2b
Threat Level: Known bad
The file 2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of Cryptolocker Samples
Detection of CryptoLocker Variants
UPX dump on OEP (original entry point)
UPX dump on OEP (original entry point)
Detection of Cryptolocker Samples
Detection of CryptoLocker Variants
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
UPX packed file
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-13 03:49
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 03:49
Reported
2024-06-13 03:52
Platform
win7-20240220-en
Max time kernel
148s
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_c978b0f40e49aeed30e93ec78c769fb7_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 840 wrote to memory of 2176 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 840 wrote to memory of 2176 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 840 wrote to memory of 2176 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 840 wrote to memory of 2176 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_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 | 18.119.154.66:443 | emrlogistics.com | tcp |
| US | 3.140.13.188:443 | emrlogistics.com | tcp |
| US | 18.119.154.66:443 | emrlogistics.com | tcp |
| US | 3.140.13.188:443 | emrlogistics.com | tcp |
| US | 18.119.154.66:443 | emrlogistics.com | tcp |
| US | 3.140.13.188:443 | emrlogistics.com | tcp |
| US | 18.119.154.66:443 | emrlogistics.com | tcp |
| US | 3.140.13.188:443 | emrlogistics.com | tcp |
Files
memory/840-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/840-1-0x00000000001D0000-0x00000000001D6000-memory.dmp
memory/840-9-0x00000000001D0000-0x00000000001D6000-memory.dmp
memory/840-2-0x0000000000290000-0x0000000000296000-memory.dmp
\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | 15b77aedc1fc0dfa22eecdd14c3cc732 |
| SHA1 | 31496c81922ea11eab2020a633294d5f937a31ff |
| SHA256 | e7b8cc3d361a9a32f8a7220137f30ebf17a97dd6171bb2b8f38692e42309c5e8 |
| SHA512 | 9bb84327d2ed0fbbf50a3ff92009afd4c2ea886a8d8a9d4f026a54fbf1a7edf3098e8b1d32ac1122ebd01c8729c30560c0623a6cafac623fcf35531bdf247667 |
memory/2176-17-0x0000000000500000-0x0000000000510000-memory.dmp
memory/840-16-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2176-26-0x0000000000240000-0x0000000000246000-memory.dmp
memory/2176-19-0x0000000000480000-0x0000000000486000-memory.dmp
memory/2176-27-0x0000000000500000-0x0000000000510000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-13 03:49
Reported
2024-06-13 03:52
Platform
win10v2004-20240226-en
Max time kernel
151s
Max time network
158s
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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_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 3532 wrote to memory of 4684 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 3532 wrote to memory of 4684 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 3532 wrote to memory of 4684 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_c978b0f40e49aeed30e93ec78c769fb7_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4072 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.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 | 71.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.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 |
| US | 54.209.32.212:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| GB | 142.250.187.234:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 234.187.250.142.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 | 28.173.189.20.in-addr.arpa | udp |
Files
memory/3532-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/3532-1-0x0000000000620000-0x0000000000626000-memory.dmp
memory/3532-2-0x0000000000620000-0x0000000000626000-memory.dmp
memory/3532-3-0x0000000000760000-0x0000000000766000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | 15b77aedc1fc0dfa22eecdd14c3cc732 |
| SHA1 | 31496c81922ea11eab2020a633294d5f937a31ff |
| SHA256 | e7b8cc3d361a9a32f8a7220137f30ebf17a97dd6171bb2b8f38692e42309c5e8 |
| SHA512 | 9bb84327d2ed0fbbf50a3ff92009afd4c2ea886a8d8a9d4f026a54fbf1a7edf3098e8b1d32ac1122ebd01c8729c30560c0623a6cafac623fcf35531bdf247667 |
memory/3532-19-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4684-26-0x00000000005A0000-0x00000000005A6000-memory.dmp
memory/4684-20-0x00000000005C0000-0x00000000005C6000-memory.dmp
memory/4684-27-0x0000000000500000-0x0000000000510000-memory.dmp