| File name: | 1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe |
| Full analysis: | https://app.any.run/tasks/0e6cb925-f435-4b6a-b041-2d5de8e14b99 |
| Verdict: | Malicious activity |
| Threats: | Cobalt Strike is a legitimate penetration software toolkit developed by Forta. But its cracked versions are widely adopted by bad actors, who use it as a C2 system of choice for targeted attacks. |
| Analysis date: | December 13, 2024, 19:13:40 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32+ executable (GUI) x86-64, for MS Windows, 6 sections |
| MD5: | 3FEB212900A0F894836CAFA28C047C51 |
| SHA1: | 6EDEC384E1992E3A0A00F939D98995EB7BF007D5 |
| SHA256: | 1C51620BEB680F07EC05D44399817F9B16A8F855560FA5A2FEFDF632EC5EBAFE |
| SSDEEP: | 49152:nrUwk5CnKofJ3AK7gd2xf0a9BJL/0SEKoKRuvsuP8F1zyUcWScHE:nrUwkIJpBs2xsa9BJLKzv |
MALICIOUS
Executing a file with an untrusted certificate
- 1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe.exe (PID: 5728)
Actions looks like stealing of personal data
- 1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe.exe (PID: 5728)
COBALTSTRIKE has been detected (YARA)
- 1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe.exe (PID: 5728)
SUSPICIOUS
Reads security settings of Internet Explorer
- 1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe.exe (PID: 5728)
Checks Windows Trust Settings
- 1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe.exe (PID: 5728)
INFO
Checks supported languages
- 1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe.exe (PID: 5728)
Reads the computer name
- 1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe.exe (PID: 5728)
Checks proxy server information
- 1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe.exe (PID: 5728)
Reads CPU info
- 1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe.exe (PID: 5728)
The sample compiled with english language support
- 1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe.exe (PID: 5728)
Reads the software policy settings
- 1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe.exe (PID: 5728)
Reads the machine GUID from the registry
- 1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe.exe (PID: 5728)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
CobalStrike
(PID) Process(5728) 1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe.exe
BeaconTypeHTTP
C2139.180.156.199:443/jquery-3.3.2.slim.min.js
HeadersAccept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Referer: http://code.jquery.com/
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko
TRiD
| .exe | | | Generic Win/DOS Executable (50) |
|---|---|---|
| .exe | | | DOS Executable Generic (49.9) |
EXIF
EXE
| CompanyName: | Krzysztof Kowalczyk |
|---|---|
| ProductVersion: | 3.6 |
| ProductName: | SumatraPDF |
| LegalCopyright: | Copyright 2006-2024 all authors (GPLv3) |
| FileVersion: | 3.6 |
| FileDescription: | SumatraPDF |
| CharacterSet: | Windows, Latin1 |
| LanguageCode: | English (U.S.) |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Windows NT 32-bit |
| FileFlags: | (none) |
| FileFlagsMask: | 0x0000 |
| ProductVersionNumber: | 3.6.0.0 |
| FileVersionNumber: | 3.6.0.0 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 6 |
| ImageVersion: | - |
| OSVersion: | 6 |
| EntryPoint: | 0xf4494 |
| UninitializedDataSize: | - |
| InitializedDataSize: | 1030144 |
| CodeSize: | 1225728 |
| LinkerVersion: | 14.4 |
| PEType: | PE32+ |
| ImageFileCharacteristics: | Executable, Large address aware |
| TimeStamp: | 2024:09:19 09:14:02+00:00 |
| MachineType: | AMD AMD64 |
Total processes
118
Monitored processes
1
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5728 | "C:\Users\admin\Desktop\1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe.exe" | C:\Users\admin\Desktop\1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe.exe | explorer.exe | ||||||||||||
User: admin Company: Krzysztof Kowalczyk Integrity Level: MEDIUM Description: SumatraPDF Version: 3.6 Modules
CobalStrike(PID) Process(5728) 1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe.exe BeaconTypeHTTP (PID) Process(5728) 1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe.exe C2139.180.156.199:443/jquery-3.3.2.slim.min.js HeadersAccept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Referer: http://code.jquery.com/
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko | |||||||||||||||
Total events
3 501
Read events
3 501
Write events
0
Delete events
0
Modification events
Executable files
0
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
9
TCP/UDP connections
22
DNS requests
5
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
5892 | svchost.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
5892 | svchost.exe | GET | 200 | 23.48.23.176:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
4712 | MoUsoCoreWorker.exe | GET | 200 | 23.48.23.176:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
4712 | MoUsoCoreWorker.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 139.180.156.199:443 | https://139.180.156.199/jquery-3.3.2.slim.min.js | unknown | binary | 264 Kb | — |
— | — | GET | 200 | 139.180.156.199:443 | https://139.180.156.199/jquery-3.3.1.min.js | unknown | binary | 5.48 Kb | — |
— | — | GET | 200 | 139.180.156.199:443 | https://139.180.156.199/jquery-3.3.1.min.js | unknown | binary | 5.58 Kb | — |
— | — | GET | 200 | 139.180.156.199:443 | https://139.180.156.199/jquery-3.3.1.min.js | unknown | binary | 5.52 Kb | — |
— | — | GET | 200 | 139.180.156.199:443 | https://139.180.156.199/jquery-3.3.1.min.js | unknown | binary | 5.56 Kb | — |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4712 | MoUsoCoreWorker.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
— | — | 192.168.100.255:137 | — | — | — | whitelisted |
5892 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
— | — | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
— | — | 192.168.100.255:138 | — | — | — | whitelisted |
5892 | svchost.exe | 23.48.23.176:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
4712 | MoUsoCoreWorker.exe | 23.48.23.176:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
5892 | svchost.exe | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
4712 | MoUsoCoreWorker.exe | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
5728 | 1c51620beb680f07ec05d44399817f9b16a8f855560fa5a2fefdf632ec5ebafe.exe | 139.180.156.199:443 | — | AS-CHOOPA | SG | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
self.events.data.microsoft.com |
| whitelisted |