Analysis Overview
SHA256
09da49c224362ada42401cb498b51ded042b803df53447a443a4fc1bfc97f17c
Threat Level: Known bad
The file 2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_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
2024-06-11 02:33
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
2024-06-11 02:33
Reported
2024-06-11 02:36
Platform
win7-20231129-en
Max time kernel
147s
Max time network
148s
Command Line
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 |
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\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_cryptolocker.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1720 wrote to memory of 2948 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 1720 wrote to memory of 2948 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 1720 wrote to memory of 2948 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 1720 wrote to memory of 2948 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_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/1720-1-0x0000000000340000-0x0000000000346000-memory.dmp
memory/1720-0-0x0000000000300000-0x0000000000306000-memory.dmp
memory/1720-8-0x0000000000300000-0x0000000000306000-memory.dmp
\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | 52799cfa88f102f30001567ecf1c56e9 |
| SHA1 | f55583bd76d5dc8248b1816f909fcbe7d479f62e |
| SHA256 | 81b0475007c49491b2d92732ad936d8958fb7d087cec766126f36fdeafffbd6d |
| SHA512 | 4d22ea0d5d8e1e78d0b259567d7f34343b1025b2e4db89375f65e682696db8da0c238c6143984c14813aa087e5ed99d75396b6bd79ba4702cf9dfb687ac6c47b |
memory/2948-22-0x0000000000240000-0x0000000000246000-memory.dmp
memory/2948-15-0x0000000000380000-0x0000000000386000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-11 02:33
Reported
2024-06-11 02:36
Platform
win10v2004-20240226-en
Max time kernel
142s
Max time network
155s
Command Line
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 |
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\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_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 652 wrote to memory of 4692 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 652 wrote to memory of 4692 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
| PID 652 wrote to memory of 4692 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\asih.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_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=1420 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.160.77.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | emrlogistics.com | udp |
| US | 3.130.204.160:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 3.130.253.23:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 3.130.204.160:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | 6.160.77.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 3.130.253.23:443 | emrlogistics.com | tcp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| GB | 216.58.212.234:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 234.212.58.216.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 | 26.73.42.20.in-addr.arpa | udp |
Files
memory/652-0-0x00000000007B0000-0x00000000007B6000-memory.dmp
memory/652-1-0x00000000007B0000-0x00000000007B6000-memory.dmp
memory/652-2-0x0000000002070000-0x0000000002076000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\asih.exe
| MD5 | 52799cfa88f102f30001567ecf1c56e9 |
| SHA1 | f55583bd76d5dc8248b1816f909fcbe7d479f62e |
| SHA256 | 81b0475007c49491b2d92732ad936d8958fb7d087cec766126f36fdeafffbd6d |
| SHA512 | 4d22ea0d5d8e1e78d0b259567d7f34343b1025b2e4db89375f65e682696db8da0c238c6143984c14813aa087e5ed99d75396b6bd79ba4702cf9dfb687ac6c47b |
memory/4692-23-0x00000000006A0000-0x00000000006A6000-memory.dmp
memory/4692-17-0x00000000007D0000-0x00000000007D6000-memory.dmp