| File name: | Unicore.zip |
| Full analysis: | https://app.any.run/tasks/e6a9f989-6a50-40a2-b0b3-d26d03f11133 |
| 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: | May 18, 2025, 17:32:27 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/zip |
| File info: | Zip archive data, at least v2.0 to extract, compression method=deflate |
| MD5: | E19E38F1DF15692A7B01860E731434A3 |
| SHA1: | 593F45DB1F3BF426432681299B5362C96A532EF4 |
| SHA256: | BE373F10BC36C87DFF0F3C0BEAE96149625AF3D87CCC290BDFD1A3AD96529CA0 |
| SSDEEP: | 98304:FiLwTh36BqO1tDbg/BRgUMTfHVfCYVuVGEliUUOz3YS5Omq0rl+frxvyxS0jtRiA:BYjBe |
| .zip | | | ZIP compressed archive (100) |
|---|
| ZipRequiredVersion: | 20 |
|---|---|
| ZipBitFlag: | - |
| ZipCompression: | Deflated |
| ZipModifyDate: | 2025:04:26 13:51:24 |
| ZipCRC: | 0x3313cac9 |
| ZipCompressedSize: | 3917687 |
| ZipUncompressedSize: | 3935232 |
| ZipFileName: | Unicore.exe |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1512 | "C:\Users\admin\Desktop\Unicore.exe" | C:\Users\admin\Desktop\Unicore.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: HIGH Description: csrss Exit code: 0 Version: 1.0.0.0 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 Exit code: 1 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4696 | choice /C Y /N /D Y /T 3 | C:\Windows\SysWOW64\choice.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Offers the user a choice Exit code: 1 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5344 | "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\admin\Desktop\Unicore.exe" | C:\Windows\SysWOW64\cmd.exe | — | Unicore.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 0 Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5552 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5720 | 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 Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6572 | "C:\WINDOWS\system32\taskmgr.exe" /7 | C:\Windows\System32\Taskmgr.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Task Manager Exit code: 0 Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7416 | "C:\Program Files\WinRAR\WinRAR.exe" C:\Users\admin\Desktop\Unicore.zip | C:\Program Files\WinRAR\WinRAR.exe | explorer.exe | ||||||||||||
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Exit code: 0 Version: 5.91.0 Modules
| |||||||||||||||
| 7484 | 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 Exit code: 0 Version: 10.0.19041.3996 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7516 | "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
| |||||||||||||||
| (PID) Process: | (7416) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 3 |
Value: C:\Users\admin\Desktop\preferences.zip | |||
| (PID) Process: | (7416) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 2 |
Value: C:\Users\admin\Desktop\chromium_ext.zip | |||
| (PID) Process: | (7416) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 1 |
Value: C:\Users\admin\Desktop\omni_23_10_2024_.zip | |||
| (PID) Process: | (7416) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\Desktop\Unicore.zip | |||
| (PID) Process: | (7416) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | name |
Value: 120 | |||
| (PID) Process: | (7416) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (7416) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | type |
Value: 120 | |||
| (PID) Process: | (7416) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | mtime |
Value: 100 | |||
| (PID) Process: | (7416) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\Interface\MainWin |
| Operation: | write | Name: | Placement |
Value: 2C0000000000000001000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF36000000EE000000F6030000D7020000 | |||
| (PID) Process: | (7416) WinRAR.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\ArcColumnWidths |
| Operation: | write | Name: | name |
Value: 256 | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 8052 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_Unicore.exe_12498c485ecb4b324ed2ed1b67df474936f7a9f_2848abc2_c1f741d0-dd22-4923-a85e-e269f799521d\Report.wer | — | |
MD5:— | SHA256:— | |||
| 8052 | WerFault.exe | C:\Users\admin\AppData\Local\CrashDumps\Unicore.exe.7960.dmp | — | |
MD5:— | SHA256:— | |||
| 8052 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\Temp\WERF261.tmp.dmp | binary | |
MD5:CA022D0AB8DB5CE0E39AEA6B6593838D | SHA256:F0C6F31D44AEBA99A1ED110A46BEEB224E7DEBBA257FF45E3154A17959A5974D | |||
| 7416 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$DRa7416.37194\Unicore.exe | executable | |
MD5:5D9DB7CA099DADC0885639A2A53DE079 | SHA256:E6F4CD594A0B7BF2F9884CD576100FFD98E81C4988953FFA767D370B518030D2 | |||
| 8052 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\Temp\WERF34D.tmp.xml | xml | |
MD5:CFA7B3A6D3703A8213451E8602834B4E | SHA256:351F53ECA778B8DAD4EB536CD5E1DA3486C76F33AD48388D2BF332B4C84EE19E | |||
| 8052 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\Temp\WERF31D.tmp.WERInternalMetadata.xml | binary | |
MD5:6771B9A4A81C6E21EDFD72680E378997 | SHA256:B011B96911BBAFDB5B58F86B21D6FEA7ED76E50F395BA07A2BF15DB88CB83069 | |||
| 6572 | Taskmgr.exe | C:\Users\admin\AppData\Local\D3DSCache\3534848bb9f4cb71\F4EB2D6C-ED2B-4BDD-AD9D-F913287E6768.lock | text | |
MD5:F49655F856ACB8884CC0ACE29216F511 | SHA256:7852FCE59C67DDF1D6B8B997EAA1ADFAC004A9F3A91C37295DE9223674011FBA | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 2.16.168.114:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 2.23.246.101:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
5496 | MoUsoCoreWorker.exe | GET | 200 | 2.16.168.114:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
5496 | MoUsoCoreWorker.exe | GET | 200 | 2.23.246.101:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
6544 | svchost.exe | GET | 200 | 2.23.77.188:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
1244 | SIHClient.exe | GET | 200 | 69.192.161.161:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
1244 | SIHClient.exe | GET | 200 | 69.192.161.161:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
1512 | Unicore.exe | GET | 200 | 208.95.112.1:80 | http://ip-api.com/json/ | unknown | — | — | whitelisted |
2924 | SearchApp.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D | unknown | — | — | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2104 | svchost.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
— | — | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 2.16.168.114:80 | crl.microsoft.com | Akamai International B.V. | RU | whitelisted |
5496 | MoUsoCoreWorker.exe | 2.16.168.114:80 | crl.microsoft.com | Akamai International B.V. | RU | whitelisted |
— | — | 2.23.246.101:80 | www.microsoft.com | Ooredoo Q.S.C. | QA | whitelisted |
5496 | MoUsoCoreWorker.exe | 2.23.246.101:80 | www.microsoft.com | Ooredoo Q.S.C. | QA | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
2112 | svchost.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
3216 | svchost.exe | 172.211.123.249:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |
ip-api.com |
| whitelisted |
PID | Process | Class | Message |
|---|---|---|---|
2196 | svchost.exe | Device Retrieving External IP Address Detected | INFO [ANY.RUN] External IP Check (ip-api .com) |
1512 | Unicore.exe | Device Retrieving External IP Address Detected | ET INFO External IP Lookup ip-api.com |
2196 | svchost.exe | Device Retrieving External IP Address Detected | ET INFO External IP Lookup Domain in DNS Lookup (ip-api .com) |
1512 | Unicore.exe | A Network Trojan was detected | ET MALWARE PureLogs GZIP Exfiltration Outbound |