| File name: | 2025-02-12_b533dc851df32fd572f39e6c2816e341_krakencryptor |
| Full analysis: | https://app.any.run/tasks/34eaf4a2-36e8-4cb3-a1d7-a325ebf3323d |
| 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: | April 12, 2025, 23:12:12 |
| OS: | Windows 10 Professional (build: 19044, 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: | B533DC851DF32FD572F39E6C2816E341 |
| SHA1: | 59D622C862105DCA5034257E02DDC929140AF1A2 |
| SHA256: | AB324B4EDA9B5877916781820227DAD6BDCAA9EB998D5159CC9FC8310E081C5C |
| SSDEEP: | 24576:f0bf3VQSIv+LQjyHt07sSJkrYBTanWyh5fRkoGTh4kzLKWenGZJGGFLNr1AubSFj:f0bf3VQSpLQjyHt07sSJkrYBTYWyh5fH |
MALICIOUS
STEALER has been found (auto)
- 2025-02-12_b533dc851df32fd572f39e6c2816e341_krakencryptor.exe (PID: 6708)
FORMBOOK has been detected
- msdt.exe (PID: 6872)
SUSPICIOUS
Starts CMD.EXE for commands execution
- msdt.exe (PID: 6872)
Deletes system .NET executable
- cmd.exe (PID: 1184)
INFO
Manual execution by a user
- msdt.exe (PID: 6872)
Reads the machine GUID from the registry
- 2025-02-12_b533dc851df32fd572f39e6c2816e341_krakencryptor.exe (PID: 6708)
Reads the computer name
- AddInProcess32.exe (PID: 5864)
- 2025-02-12_b533dc851df32fd572f39e6c2816e341_krakencryptor.exe (PID: 6708)
Checks supported languages
- 2025-02-12_b533dc851df32fd572f39e6c2816e341_krakencryptor.exe (PID: 6708)
- AddInProcess32.exe (PID: 5864)
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: | 1986:06:08 03:00:00+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 713728 |
| InitializedDataSize: | 190464 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xb02ae |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 3.5.7.8 |
| ProductVersionNumber: | 3.5.7.8 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | 7C?:89HIC87;;8I8397 |
| CompanyName: | CDJE9?>DIB<B5:9D42 |
| FileDescription: | 2;9:3?F8F@FD4G7 |
| FileVersion: | 3.5.7.8 |
| InternalName: | gggcccc2222.exe |
| LegalCopyright: | Copyright © 1994 CDJE9?>DIB<B5:9D42 |
| OriginalFileName: | gggcccc2222.exe |
| ProductName: | 2;9:3?F8F@FD4G7 |
| ProductVersion: | 3.5.7.8 |
| AssemblyVersion: | 1.0.0.0 |
Total processes
134
Monitored processes
8
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1168 | C:\WINDOWS\system32\SppExtComObj.exe -Embedding | C:\Windows\System32\SppExtComObj.Exe | — | svchost.exe | |||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: KMS Connection Broker Version: 10.0.19041.3996 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1184 | /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe" | C:\Windows\SysWOW64\cmd.exe | — | msdt.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2096 | "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 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4300 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4696 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe | — | 2025-02-12_b533dc851df32fd572f39e6c2816e341_krakencryptor.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: AddInProcess.exe Exit code: 4294967295 Version: 4.8.9037.0 built by: NET481REL1 Modules
| |||||||||||||||
| 5864 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe | — | 2025-02-12_b533dc851df32fd572f39e6c2816e341_krakencryptor.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: AddInProcess.exe Exit code: 0 Version: 4.8.9037.0 built by: NET481REL1 Modules
| |||||||||||||||
| 6708 | "C:\Users\admin\Desktop\2025-02-12_b533dc851df32fd572f39e6c2816e341_krakencryptor.exe" | C:\Users\admin\Desktop\2025-02-12_b533dc851df32fd572f39e6c2816e341_krakencryptor.exe | — | explorer.exe | |||||||||||
User: admin Company: CDJE9?>DIB<B5:9D42 Integrity Level: MEDIUM Description: 2;9:3?F8F@FD4G7 Exit code: 0 Version: 3.5.7.8 Modules
| |||||||||||||||
| 6872 | "C:\Windows\SysWOW64\msdt.exe" | C:\Windows\SysWOW64\msdt.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Diagnostics Troubleshooting Wizard Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
382
Read events
382
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
4
TCP/UDP connections
17
DNS requests
13
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
6544 | svchost.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
3304 | SIHClient.exe | GET | 200 | 23.38.73.129:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
3304 | SIHClient.exe | GET | 200 | 23.38.73.129:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 23.216.77.28:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
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 | 192.168.100.255:138 | — | — | — | whitelisted |
— | — | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 23.216.77.28:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
3216 | svchost.exe | 172.211.123.250:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
6544 | svchost.exe | 40.126.31.3:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
6544 | svchost.exe | 2.17.190.73:80 | ocsp.digicert.com | AKAMAI-AS | DE | whitelisted |
2104 | svchost.exe | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
3304 | SIHClient.exe | 20.109.210.53:443 | slscr.update.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
3304 | SIHClient.exe | 23.38.73.129:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |