MALICIOUS — 59cb3fb94fca66c3e2d0b88af5dadd80f7d4596e3f9760d6c549d4fb9252d0f6

MALICIOUS — 59cb3fb94fca66c3e2d0b88af5dadd80f7d4596e3f9760d6c549d4fb9252d0f6 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Winsecsrv family. 5 of 56 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: 59cb3fb94fca66c3e2d0b88af5dadd80f7d4596e3f9760d6c549d4fb9252d0f6
• SHA-1: 705776724923f1b0e10128d29d593f1c9870bcdb
• MD5: c52132fb2ad2e4b77bcb0e48930bc0ac
• imphash: ba2f922d7edf9e1c046acdab8ff135a5
• ssdeep: 3072:DCiSGtVxBzdeI8pQFZObCXacvWT1mlOZKwn2n8OCRrV:uKLLII81bmaccTnkRCRrV
• TLSH: T19A3D5CF39526B309D5F1A3F438A18D8E00B3B89622F219CC6797C05D36E9C5B9877189
• Submitted as: 59cb3fb94fca66c3e2d0b88af5dadd80f7d4596e3f9760d6c549d4fb9252d0f6
• File type: pe · Size: 124088 bytes
• Verdict: malicious (99/100) · Family: Winsecsrv

Detections (5 of 56 engines)

• capa (capabilities): capability:credential-access
• ClamAV (daily): Win.Malware.Winsecsrv-9823442-0
• Microsoft Defender: Trojan:Win32/Winexert.C!bit
• Emsisoft (Emergency Kit): Gen:Variant.Winsecsrv.1
• Kaspersky (KVRT): HEUR:Trojan.Win32.Generic

MITRE ATT&CK

• T1555
• T1003

Why this verdict

The malicious score of 99/100 is the fusion of 7 weighted signals:

• ClamAV (daily) flagged Win.Malware.Winsecsrv-9823442-0 (rule Win.Malware.Winsecsrv-9823442-0) - engine signal, weight 0.90, confidence 0.95
• Microsoft Defender flagged Trojan:Win32/Winexert.C!bit (rule Trojan:Win32/Winexert.C!bit) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged Gen:Variant.Winsecsrv.1 (rule Gen:Variant.Winsecsrv.1) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged HEUR:Trojan.Win32.Generic (rule HEUR:Trojan.Win32.Generic) - engine signal, weight 0.55, confidence 0.85
• access stored credentials (rule access stored credentials) - capa signal, weight 0.50, confidence 0.80
• capa (capabilities) flagged capability:credential-access (rule capability:credential-access) - engine signal, weight 0.35, confidence 0.70
• Embedded network infrastructure: http://sf.symcb.com/sf.crl0f, https://d.symcb.com/rpa0, http://sf.symcb.com/sf.crt0 - static signal, weight 0.35, confidence 0.60

Dynamic analysis (windows)

0 behavior events · 0 ATT&CK techniques · 0 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• update.googleapis.com
• login.live.com
• desktop-hsgcbep
• v20.events.data.microsoft.com
• config.edge.skype.com
• windows.msn.com
• www.msn.com
• officeclient.microsoft.com
• odc.officeapps.live.com
• licensing.mp.microsoft.com
• assets.msn.com
• www.bing.com
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• www.msftconnecttest.com/connecttest.txt

Embedded URLs

• http://crl.thawte.com/ThawteTimestampingCA.crl0
• http://ts-aia.ws.symantec.com/tss-ca-g2.cer0
• http://ts-crl.ws.symantec.com/tss-ca-g2.crl0
• https://www.verisign.com/rpa
• http://sf.symcb.com/sf.crl0f
• https://d.symcb.com/rpa0
• http://sf.symcb.com/sf.crt0
• https://www.verisign.com/cps0*
• https://www.verisign.com/rpa0
• http://logo.verisign.com/vslogo.gif04
• http://crl.verisign.com/pca3-g5.crl04
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Embedded domains

• crl.thawte.com
• ts-aia.ws.symantec.com
• ts-crl.ws.symantec.com
• www.verisign.com
• sf.symcb.com
• d.symcb.com
• crl.microsoft.com
• logo.verisign.com
• crl.verisign.com

Embedded IP addresses

• 51.132.193.104
• 52.123.252.222
• 20.247.185.124
• 4.230.171.124
• 52.110.12.22
• 52.110.12.48

File paths

• E:\build\SmartEngine\Bin\Win32\Release\EXKernel.pdb
• W:\:g:r:
• T:\:`:l:p:

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report