| File name: | 85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659 |
| Full analysis: | https://app.any.run/tasks/83878522-98a5-431b-8513-e3e9faa442a4 |
| Verdict: | Malicious activity |
| Threats: | First identified in March 2021, PureCrypter is a .NET-based loader that employs obfuscation techniques, such as SmartAssembly, to evade detection. It has been used to distribute malware families including AgentTesla, RedLine Stealer, and SnakeKeylogger. The malware is typically delivered through phishing campaigns and malicious downloads, often masquerading as legitimate files with extensions like .mp4 or .pdf. PureCrypter utilizes encryption and compression to conceal its payloads and can inject malicious code into legitimate processes to maintain persistence on the infected system. |
| Analysis date: | July 21, 2025, 15:03:50 |
| 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: | B4C236405FDE2D29E8FCF24C4DBE8E1C |
| SHA1: | CADC9E4432A8C13FC3EE70F2B0A305F1C72D233E |
| SHA256: | 85346857515BCFF04F4EC8AA4B906E12EFF6073DE9273D99113621CD30CCE659 |
| SSDEEP: | 24576:Dwhs0n1owl8aIYxY1Tye+1P09Q/Ucza7EqFWKZEWt+tQmXTGJg:Dwhs0n1owWaIYxY1Tye+1P09Q/Ucza7i |
MALICIOUS
PURECRYPTER has been detected (YARA)
- 85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe (PID: 3656)
Changes the autorun value in the registry
- 85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe (PID: 3656)
SUSPICIOUS
Executes application which crashes
- 85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe (PID: 4800)
Application launched itself
- 85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe (PID: 3656)
Executable content was dropped or overwritten
- 85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe (PID: 3656)
INFO
.NET Reactor protector has been detected
- 85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe (PID: 3656)
Checks supported languages
- 85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe (PID: 3656)
Creates files or folders in the user directory
- 85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe (PID: 3656)
- WerFault.exe (PID: 3896)
Reads the machine GUID from the registry
- 85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe (PID: 3656)
Reads the computer name
- 85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe (PID: 3656)
Launching a file from a Registry key
- 85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe (PID: 3656)
Checks proxy server information
- WerFault.exe (PID: 3896)
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.) (82.9) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (7.4) |
| .exe | | | Win32 Executable (generic) (5.1) |
| .exe | | | Generic Win/DOS Executable (2.2) |
| .exe | | | DOS Executable Generic (2.2) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2024:01:12 08:18:30+00:00 |
| ImageFileCharacteristics: | Executable, No line numbers, No symbols, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 850944 |
| InitializedDataSize: | 2048 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xd1bde |
| 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: | - |
| FileDescription: | - |
| FileVersion: | 1.0.0.0 |
| InternalName: | Ofcau.exe |
| LegalCopyright: | - |
| LegalTrademarks: | - |
| OriginalFileName: | Ofcau.exe |
| ProductName: | - |
| ProductVersion: | 1.0.0.0 |
| AssemblyVersion: | 1.0.0.0 |
Total processes
138
Monitored processes
5
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3656 | "C:\Users\admin\AppData\Local\Temp\85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe" | C:\Users\admin\AppData\Local\Temp\85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 3896 | C:\WINDOWS\SysWOW64\WerFault.exe -u -p 4800 -s 228 | C:\Windows\SysWOW64\WerFault.exe | 85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Problem Reporting Exit code: 0 Version: 10.0.19041.3996 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4528 | C:\Users\admin\AppData\Local\Temp\85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe | C:\Users\admin\AppData\Local\Temp\85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe | — | 85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 4294967295 Version: 1.0.0.0 Modules
| |||||||||||||||
| 4800 | C:\Users\admin\AppData\Local\Temp\85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe | C:\Users\admin\AppData\Local\Temp\85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe | 85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 3221225477 Version: 1.0.0.0 Modules
| |||||||||||||||
| 4948 | 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 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
3 318
Read events
3 317
Write events
1
Delete events
0
Modification events
| (PID) Process: | (3656) 85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | Hveadlow |
Value: C:\Users\admin\AppData\Roaming\Hveadlow.exe | |||
Executable files
1
Suspicious files
0
Text files
2
Unknown types
2
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3896 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_85346857515bcff0_8df466df07e24a439cddac6a86de4b797e5c34_2dc33318_98330dd8-7610-4f1a-b0da-16bbc6ab58b2\Report.wer | — | |
MD5:— | SHA256:— | |||
| 3896 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\Temp\WER5079.tmp.WERInternalMetadata.xml | xml | |
MD5:417581D7A2996474C01CF265ECEB9D3B | SHA256:64ABA86CCB32EF70148125297044FE8E9B5983A1E4A5C06F982FA41779405C8D | |||
| 3896 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\Temp\WER5049.tmp.dmp | dmp | |
MD5:593B4A4BFA0A86F722BF3C0C00E774F2 | SHA256:ADD17708D07D15A13CBCD9D70F7F182F438AB54E4EC391B9C3E2BE9D67291A4C | |||
| 3656 | 85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe | C:\Users\admin\AppData\Roaming\Hveadlow.exe | executable | |
MD5:B4C236405FDE2D29E8FCF24C4DBE8E1C | SHA256:85346857515BCFF04F4EC8AA4B906E12EFF6073DE9273D99113621CD30CCE659 | |||
| 3896 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\Temp\WER50A8.tmp.xml | xml | |
MD5:65D392C5477A0BDBF9827CBDB9D9D9CC | SHA256:BCC0FA166B8038E58F8BF555D5FE20B69ECF19A46199FCA34E6C1E17C1AE82A8 | |||
| 3896 | WerFault.exe | C:\Users\admin\AppData\Local\CrashDumps\85346857515bcff04f4ec8aa4b906e12eff6073de9273d99113621cd30cce659.exe.4800.dmp | dmp | |
MD5:75CD5BEE4F80EEE2E77C2D7FC0218CF0 | SHA256:F075E7C6D4B132667094A3B984141BA21CC29BD669FAE9ED6A4953F45AFB3C2E | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
67
DNS requests
7
Threats
0
HTTP requests
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 | — | — | — | whitelisted |
5944 | MoUsoCoreWorker.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
1268 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
1568 | RUXIMICS.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
5944 | MoUsoCoreWorker.exe | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
1268 | svchost.exe | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
6024 | svchost.exe | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
3896 | WerFault.exe | 135.234.160.245:443 | watson.events.data.microsoft.com | LUCENT-CIO | US | whitelisted |
4892 | slui.exe | 40.91.76.224:443 | activation-v2.sls.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
watson.events.data.microsoft.com |
| whitelisted |
self.events.data.microsoft.com |
| whitelisted |
activation-v2.sls.microsoft.com |
| whitelisted |