| File name: | 2025-06-21_bbf28aa6c254c6ba41a50016b9225241_cryptolocker_elex |
| Full analysis: | https://app.any.run/tasks/d26ed107-1d89-4f85-b963-ec95a8467deb |
| Verdict: | Malicious activity |
| Analysis date: | June 21, 2025, 06:35:59 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed, 3 sections |
| MD5: | BBF28AA6C254C6BA41A50016B9225241 |
| SHA1: | D88CEE297C7CBF7D18B81F91FDA63AB36388D682 |
| SHA256: | AC1527AFAA63E3A582BAA9A064C68D63F9D28C6A34FF6ABE5E318BD37D4E6FAF |
| SSDEEP: | 384:9tRovUFK45TjWVBL2SIn070tox1yWYQOvZK6NMJ1qfsnbiISH:3kG5Tj8/In0AKXixsJPSH |
MALICIOUS
No malicious indicators.SUSPICIOUS
Executable content was dropped or overwritten
- 2025-06-21_bbf28aa6c254c6ba41a50016b9225241_cryptolocker_elex.exe (PID: 7152)
Starts itself from another location
- 2025-06-21_bbf28aa6c254c6ba41a50016b9225241_cryptolocker_elex.exe (PID: 7152)
Reads security settings of Internet Explorer
- 2025-06-21_bbf28aa6c254c6ba41a50016b9225241_cryptolocker_elex.exe (PID: 7152)
- pissa.exe (PID: 3580)
Creates file in the systems drive root
- pissa.exe (PID: 3580)
The process executes via Task Scheduler
- default-browser-agent.exe (PID: 6776)
Loads DLL from Mozilla Firefox
- default-browser-agent.exe (PID: 6776)
INFO
Create files in a temporary directory
- 2025-06-21_bbf28aa6c254c6ba41a50016b9225241_cryptolocker_elex.exe (PID: 7152)
- pissa.exe (PID: 3580)
Checks supported languages
- 2025-06-21_bbf28aa6c254c6ba41a50016b9225241_cryptolocker_elex.exe (PID: 7152)
- pissa.exe (PID: 3580)
- default-browser-agent.exe (PID: 6776)
Reads the computer name
- 2025-06-21_bbf28aa6c254c6ba41a50016b9225241_cryptolocker_elex.exe (PID: 7152)
- pissa.exe (PID: 3580)
Process checks computer location settings
- 2025-06-21_bbf28aa6c254c6ba41a50016b9225241_cryptolocker_elex.exe (PID: 7152)
- pissa.exe (PID: 3580)
Checks proxy server information
- pissa.exe (PID: 3580)
- slui.exe (PID: 5720)
Reads the software policy settings
- pissa.exe (PID: 3580)
- slui.exe (PID: 5720)
Reads the machine GUID from the registry
- pissa.exe (PID: 3580)
Creates files or folders in the user directory
- pissa.exe (PID: 3580)
Application launched itself
- firefox.exe (PID: 1816)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .dll | | | Win32 Dynamic Link Library (generic) (38.3) |
|---|---|---|
| .exe | | | Win32 Executable (generic) (26.3) |
| .exe | | | Clipper DOS Executable (11.7) |
| .exe | | | Generic Win/DOS Executable (11.6) |
| .exe | | | DOS Executable Generic (11.6) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2012:02:16 02:43:40+00:00 |
| ImageFileCharacteristics: | Executable, No line numbers, No symbols, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 16384 |
| InitializedDataSize: | 4096 |
| UninitializedDataSize: | 24576 |
| EntryPoint: | 0xa730 |
| OSVersion: | 5 |
| ImageVersion: | - |
| SubsystemVersion: | 5 |
| Subsystem: | Windows GUI |
Total processes
138
Monitored processes
6
Malicious processes
0
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1816 | "C:\Program Files\Mozilla Firefox\firefox.exe" --backgroundtask defaultagent do-task 308046B0AF4A39CB | C:\Program Files\Mozilla Firefox\firefox.exe | — | default-browser-agent.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Exit code: 0 Version: 136.0 Modules
| |||||||||||||||
| 3580 | "C:\Users\admin\AppData\Local\Temp\pissa.exe" | C:\Users\admin\AppData\Local\Temp\pissa.exe | 2025-06-21_bbf28aa6c254c6ba41a50016b9225241_cryptolocker_elex.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 4232 | "C:\Program Files\Mozilla Firefox\firefox.exe" --backgroundtask defaultagent do-task 308046B0AF4A39CB | C:\Program Files\Mozilla Firefox\firefox.exe | — | firefox.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Exit code: 0 Version: 136.0 Modules
| |||||||||||||||
| 5720 | C:\WINDOWS\System32\slui.exe -Embedding | C:\Windows\System32\slui.exe | svchost.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Activation Client Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6776 | "C:\Program Files\Mozilla Firefox\default-browser-agent.exe" do-task "308046B0AF4A39CB" | C:\Program Files\Mozilla Firefox\default-browser-agent.exe | — | svchost.exe | |||||||||||
User: admin Company: Mozilla Foundation Integrity Level: MEDIUM Exit code: 0 Version: 136.0 Modules
| |||||||||||||||
| 7152 | "C:\Users\admin\Desktop\2025-06-21_bbf28aa6c254c6ba41a50016b9225241_cryptolocker_elex.exe" | C:\Users\admin\Desktop\2025-06-21_bbf28aa6c254c6ba41a50016b9225241_cryptolocker_elex.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
Total events
8 199
Read events
8 195
Write events
4
Delete events
0
Modification events
| (PID) Process: | (3580) pissa.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content |
| Operation: | write | Name: | CachePrefix |
Value: | |||
| (PID) Process: | (3580) pissa.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies |
| Operation: | write | Name: | CachePrefix |
Value: Cookie: | |||
| (PID) Process: | (3580) pissa.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History |
| Operation: | write | Name: | CachePrefix |
Value: Visited: | |||
| (PID) Process: | (4232) firefox.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Mozilla\Firefox\DllPrefetchExperiment |
| Operation: | write | Name: | C:\Program Files\Mozilla Firefox\firefox.exe |
Value: 0 | |||
Executable files
1
Suspicious files
67
Text files
4
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3580 | pissa.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\INetCache\IE\RR3E01RZ\rch[1].htm | html | |
MD5:E89F75F918DBDCEE28604D4E09DD71D7 | SHA256:6DC9C7FC93BB488BB0520A6C780A8D3C0FB5486A4711ACA49B4C53FAC7393023 | |||
| 7152 | 2025-06-21_bbf28aa6c254c6ba41a50016b9225241_cryptolocker_elex.exe | C:\Users\admin\AppData\Local\Temp\pissa.exe | executable | |
MD5:549DCAC1A4FC766EE7BFF8257F2795C5 | SHA256:A03AB4E3DDEB0EB4FF2FB198D7F813924E91554AAD26886DCE49F475C77BC7A3 | |||
| 3580 | pissa.exe | C:\Users\admin\AppData\Local\Temp\pissec.exe | html | |
MD5:E89F75F918DBDCEE28604D4E09DD71D7 | SHA256:6DC9C7FC93BB488BB0520A6C780A8D3C0FB5486A4711ACA49B4C53FAC7393023 | |||
| 4232 | firefox.exe | C:\Users\admin\AppData\Roaming\Mozilla\Firefox\Background Tasks Profiles\93u99co2.MozillaBackgroundTask-308046B0AF4A39CB-defaultagent\datareporting\glean\db\data.safe.tmp | binary | |
MD5:0CC8D264FD1DB732E59AD15F897EB626 | SHA256:1F7E3AA6AC66450BD467F889806CC634683E5CB032E8440B8C56484FB4E7464C | |||
| 4232 | firefox.exe | C:\Users\admin\AppData\Roaming\Mozilla\Firefox\Background Tasks Profiles\93u99co2.MozillaBackgroundTask-308046B0AF4A39CB-defaultagent\prefs-1.js | text | |
MD5:66EDD644CA1CECA668EBF3947690AFA4 | SHA256:A8EDD5B838DAAA952D8E94F3FC3766C5987F0859DDB366248E378C65709CAF18 | |||
| 4232 | firefox.exe | C:\Users\admin\AppData\Roaming\Mozilla\Firefox\Background Tasks Profiles\93u99co2.MozillaBackgroundTask-308046B0AF4A39CB-defaultagent\datareporting\glean\db\data.safe.bin | binary | |
MD5:0CC8D264FD1DB732E59AD15F897EB626 | SHA256:1F7E3AA6AC66450BD467F889806CC634683E5CB032E8440B8C56484FB4E7464C | |||
| 4232 | firefox.exe | C:\Users\admin\AppData\Roaming\Mozilla\Firefox\Background Tasks Profiles\93u99co2.MozillaBackgroundTask-308046B0AF4A39CB-defaultagent\prefs.js | text | |
MD5:66EDD644CA1CECA668EBF3947690AFA4 | SHA256:A8EDD5B838DAAA952D8E94F3FC3766C5987F0859DDB366248E378C65709CAF18 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
9
TCP/UDP connections
23
DNS requests
9
Threats
2
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
5944 | MoUsoCoreWorker.exe | GET | 200 | 184.24.77.6:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
6012 | RUXIMICS.exe | GET | 200 | 184.24.77.6:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
1268 | svchost.exe | GET | 200 | 184.24.77.6:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
6012 | RUXIMICS.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 76.223.54.146:443 | https://el-padrino.com/elpatio/rch.exe | unknown | — | — | — |
1268 | svchost.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
2940 | svchost.exe | GET | 200 | 69.192.161.44:80 | http://x1.c.lencr.org/ | unknown | — | — | whitelisted |
— | — | POST | 500 | 40.91.76.224:443 | https://activation-v2.sls.microsoft.com/SLActivateProduct/SLActivateProduct.asmx?configextension=Retail | unknown | xml | 512 b | whitelisted |
— | — | POST | 500 | 40.91.76.224:443 | https://activation-v2.sls.microsoft.com/SLActivateProduct/SLActivateProduct.asmx?configextension=Retail | unknown | xml | 512 b | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
1268 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
6012 | RUXIMICS.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
5944 | MoUsoCoreWorker.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
6012 | RUXIMICS.exe | 184.24.77.6:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
5944 | MoUsoCoreWorker.exe | 184.24.77.6:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
1268 | svchost.exe | 184.24.77.6:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
6012 | RUXIMICS.exe | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
1268 | svchost.exe | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
el-padrino.com |
| malicious |
activation-v2.sls.microsoft.com |
| whitelisted |
x1.c.lencr.org |
| whitelisted |
self.events.data.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | A Network Trojan was detected | ET MALWARE Downloader (P2P Zeus dropper UA) |
— | — | Potentially Bad Traffic | ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile |