| File name: | cx5ylLPZa0WXFvQ.exe |
| Full analysis: | https://app.any.run/tasks/a0411e83-adec-4f45-bad6-201333d86805 |
| Verdict: | Malicious activity |
| Threats: | FormBook is a data stealer that is being distributed as a MaaS. FormBook differs from a lot of competing malware by its extreme ease of use that allows even the unexperienced threat actors to use FormBook virus. |
| Analysis date: | March 24, 2025, 08:14:31 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows, 3 sections |
| MD5: | 7043814725252C8CACF78B12D2002B80 |
| SHA1: | 995697CA0BB9284994D56D7948EEFA616A841E3D |
| SHA256: | EDF824F5152829EF7BE198C97A42E4ECD5AE9BE37EF57051DEDA0435CC302063 |
| SSDEEP: | 24576:ZBs8ZvOZEKCQkcOU/QNEtIeUpJTirZt16JIlWW1c7QjJZVQOST5z15:ZC8ZvOZEKCQ/OU/QNEtIeUp9irZt16JV |
MALICIOUS
Actions looks like stealing of personal data
- colorcpl.exe (PID: 5392)
FORMBOOK has been detected (YARA)
- colorcpl.exe (PID: 5392)
Connects to the CnC server
- explorer.exe (PID: 5492)
FORMBOOK has been detected (SURICATA)
- explorer.exe (PID: 5492)
SUSPICIOUS
Application launched itself
- cx5ylLPZa0WXFvQ.exe (PID: 6488)
Process drops legitimate windows executable
- cx5ylLPZa0WXFvQ.exe (PID: 6488)
Starts a Microsoft application from unusual location
- cx5ylLPZa0WXFvQ.exe (PID: 6488)
- cx5ylLPZa0WXFvQ.exe (PID: 3884)
- cx5ylLPZa0WXFvQ.exe (PID: 6700)
Contacting a server suspected of hosting an CnC
- explorer.exe (PID: 5492)
INFO
Reads the computer name
- cx5ylLPZa0WXFvQ.exe (PID: 6488)
Checks supported languages
- cx5ylLPZa0WXFvQ.exe (PID: 6488)
- cx5ylLPZa0WXFvQ.exe (PID: 6700)
Reads the machine GUID from the registry
- cx5ylLPZa0WXFvQ.exe (PID: 6488)
Manual execution by a user
- colorcpl.exe (PID: 5392)
Reads the software policy settings
- slui.exe (PID: 6048)
- slui.exe (PID: 6148)
Create files in a temporary directory
- colorcpl.exe (PID: 5392)
Reads security settings of Internet Explorer
- colorcpl.exe (PID: 5392)
Checks proxy server information
- slui.exe (PID: 6148)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (63.1) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (23.8) |
| .dll | | | Win32 Dynamic Link Library (generic) (5.6) |
| .exe | | | Win32 Executable (generic) (3.8) |
| .exe | | | Generic Win/DOS Executable (1.7) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2023:11:28 11:22:13+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 48 |
| CodeSize: | 771072 |
| InitializedDataSize: | 2560 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xbe1fe |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 1.0.0.0 |
| ProductVersionNumber: | 1.0.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | - |
| CompanyName: | Microsoft Corporation |
| FileDescription: | Performance Relogging |
| FileVersion: | 1.0.0.0 |
| InternalName: | EKeb.exe |
| LegalCopyright: | Copyright © Microsoft Corporation. All rights reserved. |
| LegalTrademarks: | - |
| OriginalFileName: | EKeb.exe |
| ProductName: | Performance Relogging |
| ProductVersion: | 1.0.0.0 |
| AssemblyVersion: | 1.0.0.0 |
Total processes
159
Monitored processes
14
Malicious processes
2
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1660 | "C:\Program Files\Mozilla Firefox\Firefox.exe" | C:\Program Files\Mozilla Firefox\firefox.exe | — | colorcpl.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Exit code: 3221225534 Version: 123.0 Modules
| |||||||||||||||
| 2196 | C:\WINDOWS\system32\svchost.exe -k NetworkService -p -s Dnscache | C:\Windows\System32\svchost.exe | services.exe | ||||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Host Process for Windows Services Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2332 | "C:\WINDOWS\system32\UCPDMgr.exe" | C:\Windows\System32\UCPDMgr.exe | — | svchost.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: User Choice Protection Manager Exit code: 0 Version: 1.0.0.414301 Modules
| |||||||||||||||
| 3268 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | UCPDMgr.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 3884 | "C:\Users\admin\AppData\Local\Temp\cx5ylLPZa0WXFvQ.exe" | C:\Users\admin\AppData\Local\Temp\cx5ylLPZa0WXFvQ.exe | — | cx5ylLPZa0WXFvQ.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Performance Relogging Exit code: 4294967295 Version: 1.0.0.0 Modules
| |||||||||||||||
| 4488 | "C:\WINDOWS\system32\UCPDMgr.exe" | C:\Windows\System32\UCPDMgr.exe | — | svchost.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: User Choice Protection Manager Exit code: 0 Version: 1.0.0.414301 Modules
| |||||||||||||||
| 4692 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | UCPDMgr.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5392 | "C:\Windows\SysWOW64\colorcpl.exe" | C:\Windows\SysWOW64\colorcpl.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Color Control Panel Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5492 | C:\WINDOWS\Explorer.EXE | C:\Windows\explorer.exe | — | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Explorer Version: 10.0.19041.3758 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6048 | "C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEvent | C:\Windows\System32\slui.exe | SppExtComObj.Exe | ||||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Windows Activation Client Exit code: 1 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
7 674
Read events
7 667
Write events
7
Delete events
0
Modification events
| (PID) Process: | (5392) colorcpl.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content |
| Operation: | write | Name: | CachePrefix |
Value: | |||
| (PID) Process: | (5392) colorcpl.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies |
| Operation: | write | Name: | CachePrefix |
Value: Cookie: | |||
| (PID) Process: | (5392) colorcpl.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History |
| Operation: | write | Name: | CachePrefix |
Value: Visited: | |||
| (PID) Process: | (5492) explorer.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Security and Maintenance\Checks\{DE7B24EA-73C8-4A09-985D-5BDADCFA9017}.check.800 |
| Operation: | write | Name: | CheckSetting |
Value: 23004100430042006C006F00620000000000000001000000800000000000000047C99E5C959CDB01000000007B00440045003700420032003400450041002D0037003300430038002D0034004100300039002D0039003800350044002D003500420044004100440043004600410039003000310037007D002E006E006F00740069006600690063006100740069006F006E002E00320000000031003800310033000000 | |||
| (PID) Process: | (5492) explorer.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Security and Maintenance\Checks\{DE7B24EA-73C8-4A09-985D-5BDADCFA9017}.check.800 |
| Operation: | write | Name: | CheckSetting |
Value: 23004100430042006C006F00620000000000000000000000010000000000000000000000 | |||
| (PID) Process: | (5492) explorer.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Security and Maintenance\Checks\{DE7B24EA-73C8-4A09-985D-5BDADCFA9017}.check.800 |
| Operation: | write | Name: | CheckSetting |
Value: 23004100430042006C006F0062000000000000000100000080000000FC7F00003260375D959CDB01000000007B00440045003700420032003400450041002D0037003300430038002D0034004100300039002D0039003800350044002D003500420044004100440043004600410039003000310037007D002E006E006F00740069006600690063006100740069006F006E002E00320000000000000000000000000000 | |||
| (PID) Process: | (5492) explorer.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Security and Maintenance\Checks\{DE7B24EA-73C8-4A09-985D-5BDADCFA9017}.check.800 |
| Operation: | write | Name: | CheckSetting |
Value: 23004100430042006C006F00620000000000000000000000010000006D00730000000000 | |||
Executable files
0
Suspicious files
1
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 5392 | colorcpl.exe | C:\Users\admin\AppData\Local\Temp\72-a1FI3Q | binary | |
MD5:A45465CDCDC6CB30C8906F3DA4EC114C | SHA256:4412319EF944EBCCA9581CBACB1D4E1DC614C348D1DFC5D2FAAAAD863D300209 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
68
TCP/UDP connections
149
DNS requests
34
Threats
61
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 404 | 91.195.240.19:80 | http://www.taxhwangeub.com/rre4/?DNZ0=a5jzZh2E5AmzaRHPWPg6tqoa5RKVMXckIwS4VzZgjWxtoZM+ru9b9MUqJGgstYPRP0kuMcR6BbnlMkdtSuJBwd47q9kIPGv2hw==&tTD=AZU9BTG-3Ct2sbWK | unknown | — | — | unknown |
5492 | explorer.exe | POST | 404 | 49.13.77.253:80 | http://www.infinite-7.com/rre4/ | unknown | — | — | unknown |
5492 | explorer.exe | POST | 404 | 49.13.77.253:80 | http://www.infinite-7.com/rre4/ | unknown | — | — | unknown |
5492 | explorer.exe | GET | 404 | 49.13.77.253:80 | http://www.infinite-7.com/rre4/?DNZ0=2SxzK01BkM7zVXLHq3JICzTH4cqRiy/UbhPSpgIhAwYDcRjzM7gaYv4G4JOfo98THcwN/iufb0C1mQMz3IY3hj4T1Vqcy4BKPw==&tTD=AZU9BTG-3Ct2sbWK | unknown | — | — | unknown |
5492 | explorer.exe | POST | 404 | 49.13.77.253:80 | http://www.terranovaservices.top/rre4/ | unknown | — | — | unknown |
5492 | explorer.exe | POST | 404 | 49.13.77.253:80 | http://www.terranovaservices.top/rre4/ | unknown | — | — | unknown |
5492 | explorer.exe | POST | 404 | 49.13.77.253:80 | http://www.infinite-7.com/rre4/ | unknown | — | — | unknown |
5492 | explorer.exe | POST | 404 | 49.13.77.253:80 | http://www.terranovaservices.top/rre4/ | unknown | — | — | unknown |
5492 | explorer.exe | POST | 404 | 49.13.77.253:80 | http://www.infinite-7.com/rre4/ | unknown | — | — | unknown |
5492 | explorer.exe | POST | 404 | 49.13.77.253:80 | http://www.terranovaservices.top/rre4/ | unknown | — | — | unknown |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:137 | — | — | — | unknown |
— | — | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | unknown |
4 | System | 192.168.100.255:138 | — | — | — | unknown |
5496 | MoUsoCoreWorker.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | unknown |
2104 | svchost.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | unknown |
2112 | svchost.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | unknown |
6048 | slui.exe | 40.91.76.224:443 | activation-v2.sls.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | unknown |
5492 | explorer.exe | 91.195.240.19:80 | www.taxhwangeub.com | SEDO GmbH | DE | unknown |
5492 | explorer.exe | 49.13.77.253:80 | www.infinite-7.com | Hetzner Online GmbH | DE | unknown |
3216 | svchost.exe | 40.115.3.253:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| unknown |
google.com |
| unknown |
activation-v2.sls.microsoft.com |
| unknown |
www.taxhwangeub.com |
| unknown |
www.infinite-7.com |
| unknown |
client.wns.windows.com |
| unknown |
login.live.com |
| unknown |
arc.msn.com |
| unknown |
www.terranovaservices.top |
| unknown |
slscr.update.microsoft.com |
| unknown |
Threats
PID | Process | Class | Message |
|---|---|---|---|
5492 | explorer.exe | Malware Command and Control Activity Detected | ET MALWARE FormBook CnC Checkin (GET) M5 |
5492 | explorer.exe | A Network Trojan was detected | STEALER [ANY.RUN] Formbook HTTP Header |
5492 | explorer.exe | A Network Trojan was detected | STEALER [ANY.RUN] Formbook HTTP Header |
5492 | explorer.exe | Malware Command and Control Activity Detected | ET MALWARE FormBook CnC Checkin (GET) M5 |
2196 | svchost.exe | Potentially Bad Traffic | ET DNS Query to a *.top domain - Likely Hostile |
5492 | explorer.exe | Potentially Bad Traffic | ET INFO HTTP Request to a *.top domain |
5492 | explorer.exe | A Network Trojan was detected | STEALER [ANY.RUN] Formbook HTTP Header |
5492 | explorer.exe | A Network Trojan was detected | STEALER [ANY.RUN] Formbook HTTP Header |
5492 | explorer.exe | A Network Trojan was detected | STEALER [ANY.RUN] Formbook HTTP Header |
5492 | explorer.exe | A Network Trojan was detected | STEALER [ANY.RUN] Formbook HTTP Header |