| File name: | Bootstrapper.exe |
| Full analysis: | https://app.any.run/tasks/321e40de-f84e-4437-94d3-f2b6eb9492ec |
| Verdict: | Malicious activity |
| Threats: | DCrat, also known as Dark Crystal RAT, is a remote access trojan (RAT), which was first introduced in 2018. It is a modular malware that can be customized to perform different tasks. For instance, it can steal passwords, crypto wallet information, hijack Telegram and Steam accounts, and more. Attackers may use a variety of methods to distribute DCrat, but phishing email campaigns are the most common. |
| Analysis date: | April 07, 2025, 20:09:51 |
| 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: | 07D2556AAA00C402E69DCAE9252670C8 |
| SHA1: | 6037766C4D631CAFCB75A75387F5A3D497F65478 |
| SHA256: | 20C15275B328C43DD315930E77FB57EB613B61308900E745552B42CC2C13B7D4 |
| SSDEEP: | 98304:/YTDWlPLpc3XNsG0u2mPYI+nWNmxnru1/JJ7HoIoELHBRfZyQN+kqFHr61hKYJtS:48Ny1W |
| .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) |
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2025:04:05 18:33:19+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 11 |
| CodeSize: | 4563456 |
| InitializedDataSize: | 6656 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x45c0ee |
| 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 |
| FileDescription: | |
| FileVersion: | 1.0.0.0 |
| InternalName: | sdadasd.exe |
| LegalCopyright: | |
| OriginalFileName: | sdadasd.exe |
| ProductVersion: | 1.0.0.0 |
| AssemblyVersion: | 1.0.0.0 |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 896 | schtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\Users\Default\Music\sihost.exe'" /rl HIGHEST /f | C:\Windows\System32\schtasks.exe | — | WmiPrvSE.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Task Scheduler Configuration Tool Exit code: 1 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1072 | schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 7 /tr "'C:\Users\Default\Music\sihost.exe'" /rl HIGHEST /f | C:\Windows\System32\schtasks.exe | — | WmiPrvSE.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Task Scheduler Configuration Tool Exit code: 1 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1128 | schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 9 /tr "'C:\Users\Default\Cookies\WmiPrvSE.exe'" /rl HIGHEST /f | C:\Windows\System32\schtasks.exe | — | WmiPrvSE.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Task Scheduler Configuration Tool Exit code: 1 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1180 | "C:\Users\admin\AppData\Local\Temp\BootstrapperNew.exe" | C:\Users\admin\AppData\Local\Temp\BootstrapperNew.exe | — | Bootstrapper.exe | |||||||||||
User: admin Integrity Level: MEDIUM Description: Bootstrapper Exit code: 3221226540 Version: 1.0.0.0 Modules
| |||||||||||||||
| 1228 | C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\admin\AppData\Local\Temp\RES4EC9.tmp" "c:\Users\admin\AppData\Local\Microsoft\OneDrive\CSC8C09A1B87F7C47E783128F845A1DEFF7.TMP" | C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe | — | csc.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft® Resource File To COFF Object Conversion Utility Exit code: 0 Version: 14.32.31326.0 Modules
| |||||||||||||||
| 1240 | C:\WINDOWS\system32\cmd.exe /c ""C:\Users\admin\AppData\Local\Temp\MQ0F9KGgxD.bat" " | C:\Windows\System32\cmd.exe | — | portfontreviewhostMonitor.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 1 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2088 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | csc.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
| |||||||||||||||
| 2140 | "C:\Users\admin\AppData\Local\Temp\Bootstrapper.exe" | C:\Users\admin\AppData\Local\Temp\Bootstrapper.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 2152 | schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 10 /tr "'C:\Users\Default\Cookies\WmiPrvSE.exe'" /f | C:\Windows\System32\schtasks.exe | — | WmiPrvSE.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Task Scheduler Configuration Tool Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) 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
| |||||||||||||||
| (PID) Process: | (2140) Bootstrapper.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | DCRatBuild |
Value: C:\Users\admin\AppData\Local\Temp\DCRatBuild.exe | |||
| (PID) Process: | (7676) DCRatBuild.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.vbe\OpenWithProgids |
| Operation: | write | Name: | VBEFile |
Value: | |||
| (PID) Process: | (4212) BootstrapperNew.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\CTF\CUAS\DefaultCompositionWindow |
| Operation: | write | Name: | Left |
Value: 0 | |||
| (PID) Process: | (4212) BootstrapperNew.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\CTF\CUAS\DefaultCompositionWindow |
| Operation: | write | Name: | Top |
Value: 0 | |||
| (PID) Process: | (8112) portfontreviewhostMonitor.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\6a7865df83c4c3eef5007cf5b7b0ff3afea22de7 |
| Operation: | write | Name: | 89b0a9f5403943670b3a93648c48dea6c43e82fb |
Value: H4sIAAAAAAAEAHWOzQrCMBCE36Vn8QG82R/wUist4sH1EMxWl6ZZSTatj2+0IgXpcT4+ZuacZBuAo0fnAZTuyQLkPFrDSkfiTaA1PjFZzb0cWxWMAJTB0zVadGcvM297Qys1DoQjQB2sUI+p4w7df9l3dI+yY9YTrqq0WPJ/4xlzRxjJqaeDG5pi6cCDnbRsxX3y+2rJloSn8ssL009L0QMBAAA= | |||
| (PID) Process: | (8112) portfontreviewhostMonitor.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | RuntimeBroker |
Value: "C:\AgentReview\RuntimeBroker.exe" | |||
| (PID) Process: | (8112) portfontreviewhostMonitor.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | UserOOBEBroker |
Value: "C:\Users\admin\NetHood\UserOOBEBroker.exe" | |||
| (PID) Process: | (8112) portfontreviewhostMonitor.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | WmiPrvSE |
Value: "C:\Users\Default\Cookies\WmiPrvSE.exe" | |||
| (PID) Process: | (8112) portfontreviewhostMonitor.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | portfontreviewhostMonitor |
Value: "C:\AgentReview\portfontreviewhostMonitor.exe" | |||
| (PID) Process: | (8112) portfontreviewhostMonitor.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | slui |
Value: "C:\Users\admin\Downloads\slui.exe" | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 4776 | powershell.exe | C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_540fhfpf.yba.ps1 | text | |
MD5:D17FE0A3F47BE24A6453E9EF58C94641 | SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7 | |||
| 4776 | powershell.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive | binary | |
MD5:77BD0A70E922F55F429FF4CB33F30A34 | SHA256:E5581EDAFC88082D117CC6740EE4F335C7EC8B0ABE47546547BF275288A0D05F | |||
| 7676 | DCRatBuild.exe | C:\AgentReview\CGpX.bat | text | |
MD5:69AE7742D41B70F14B4BE6D545688294 | SHA256:0E935CE286DBBF9C567114D950A1DAFE8E698D6ACD6202CE9439438EE7E981C8 | |||
| 7676 | DCRatBuild.exe | C:\AgentReview\portfontreviewhostMonitor.exe | executable | |
MD5:A1D40E22366851823A7D742A48E1CE01 | SHA256:BA71C40260BFDA9162126572BC1131E93EC463CC962CA967B5106476B3747172 | |||
| 8112 | portfontreviewhostMonitor.exe | C:\Users\admin\Desktop\LkWUEZGq.log | executable | |
MD5:D8BF2A0481C0A17A634D066A711C12E9 | SHA256:2B93377EA087225820A9F8E4F331005A0C600D557242366F06E0C1EAE003D669 | |||
| 2140 | Bootstrapper.exe | C:\Users\admin\AppData\Local\Temp\DCRatBuild.exe | executable | |
MD5:08E2F119BB2C189C6861F07740B07DE8 | SHA256:4CE9706F1C0FD1515E600A9D44EDEF425CFA39BE896913B394A4A9F268A393CC | |||
| 4776 | powershell.exe | C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_ggwrd5ez.ibp.psm1 | text | |
MD5:D17FE0A3F47BE24A6453E9EF58C94641 | SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7 | |||
| 2140 | Bootstrapper.exe | C:\Users\admin\AppData\Local\Temp\BootstrapperNew.exe | executable | |
MD5:07B2ED9AF56F55A999156738B17848DF | SHA256:73427B83BD00A8745E5182D2CDB3727E654AE9AF5E42BEFC45903027F6606597 | |||
| 4212 | BootstrapperNew.exe | C:\Users\admin\AppData\Local\Temp\CONFIG | binary | |
MD5:0284FA0391784125AD3B12BE8C92C6AE | SHA256:789075B8C810F2B63F86DD1F8B7BE836178AC679A32F2CB2376E013BC78C68C0 | |||
| 8112 | portfontreviewhostMonitor.exe | C:\Users\Default\AppData\Local\Microsoft\Windows\INetCookies\24dbde2999530e | text | |
MD5:430AF7D53814C662EF94C4CA1120EBDB | SHA256:FA424CE0D8B48E12D75DA61968F1F5A7CE5BEF3D0F6BED9D8FD9AD819124C18A | |||
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 |
— | — | GET | 200 | 23.216.77.20:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
7896 | SIHClient.exe | GET | 200 | 2.16.253.202:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
7896 | SIHClient.exe | GET | 200 | 2.16.253.202:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
7648 | UserOOBEBroker.exe | POST | 200 | 104.21.16.1:80 | http://696575cm.nyashware.ru/Vmlongpoll.php | unknown | — | — | malicious |
7648 | UserOOBEBroker.exe | POST | 200 | 104.21.16.1:80 | http://696575cm.nyashware.ru/Vmlongpoll.php | unknown | — | — | malicious |
7648 | UserOOBEBroker.exe | POST | 200 | 104.21.16.1:80 | http://696575cm.nyashware.ru/Vmlongpoll.php | unknown | — | — | malicious |
7648 | UserOOBEBroker.exe | POST | 200 | 104.21.16.1:80 | http://696575cm.nyashware.ru/Vmlongpoll.php | unknown | — | — | malicious |
7648 | UserOOBEBroker.exe | POST | 200 | 104.21.16.1:80 | http://696575cm.nyashware.ru/Vmlongpoll.php | unknown | — | — | malicious |
7648 | UserOOBEBroker.exe | POST | 200 | 104.21.16.1:80 | http://696575cm.nyashware.ru/Vmlongpoll.php | unknown | — | — | malicious |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
— | — | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
— | — | 23.216.77.20:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
3216 | svchost.exe | 172.211.123.249:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
6544 | svchost.exe | 20.190.160.65:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
6544 | svchost.exe | 2.17.190.73:80 | ocsp.digicert.com | AKAMAI-AS | DE | whitelisted |
2104 | svchost.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
7896 | SIHClient.exe | 4.175.87.197:443 | slscr.update.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
7896 | SIHClient.exe | 2.16.253.202:80 | www.microsoft.com | Akamai International B.V. | NL | whitelisted |
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
crl.microsoft.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 |
696575cm.nyashware.ru |
| malicious |
PID | Process | Class | Message |
|---|---|---|---|
2196 | svchost.exe | A Network Trojan was detected | MALWARE [ANY.RUN] Suspected Domain Associated with Malware Distribution (nyashware .ru) |
7648 | UserOOBEBroker.exe | A Network Trojan was detected | ET MALWARE [ANY.RUN] DarkCrystal Rat Check-in (POST) |
7648 | UserOOBEBroker.exe | A Network Trojan was detected | REMOTE [ANY.RUN] DarkCrystal Rat Check-in (POST) |