MALICIOUS — 52b1b900f66c7386772c15402440504e17b7be37a158c5c9690f1acc7e16a6ed

MALICIOUS — 52b1b900f66c7386772c15402440504e17b7be37a158c5c9690f1acc7e16a6ed is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (97/100), attributed to the Maldoc family. 3 of 56 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: 52b1b900f66c7386772c15402440504e17b7be37a158c5c9690f1acc7e16a6ed
• SHA-1: fb06f5c7d8a6f4afdd21913019c3d675b9d9523d
• MD5: 19d2ca446de296f3daaf7d47c9a476c6
• imphash: 4fb3ad0cdbb5688203ae9f37513bc619
• ssdeep: 6144:urNczuHLlB8iCYs7WEFwQiJ1eQYWXzd/6yFnV5QJ1cOvq0vG27J+FoT9A1zlsDgs:7zurlB8As7WEFgf/6y3s
• TLSH: T15548E5CC44216391D6F69A211E20D6BD204CB8D3A578754B0ED2A27BF5F39339C362A7
• Submitted as: 52b1b900f66c7386772c15402440504e17b7be37a158c5c9690f1acc7e16a6ed
• File type: pe · Size: 377383 bytes
• Verdict: malicious (97/100) · Family: Maldoc

Detections (3 of 56 engines)

• ClamAV (daily): Win.Malware.Generic-9886878-0
• YARA: delivr.to detections: DLV_Maldoc_VBA_AutoExec
• LIEF (executable format parser): lief:invalid-authenticode

MITRE ATT&CK

• T1071.001

Why this verdict

The malicious score of 97/100 is the fusion of 6 weighted signals:

• ClamAV (daily) flagged Win.Malware.Generic-9886878-0 (rule Win.Malware.Generic-9886878-0) - engine signal, weight 0.90, confidence 0.95
• YARA: delivr.to detections flagged DLV_Maldoc_VBA_AutoExec (rule DLV_Maldoc_VBA_AutoExec) - engine signal, weight 0.70, confidence 0.70
• Contacted 3 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
• LIEF (executable format parser) flagged lief:invalid-authenticode (rule lief:invalid-authenticode) - engine signal, weight 0.35, confidence 0.70
• communicate over HTTP (rule communicate over HTTP) - capa signal, weight 0.30, confidence 0.60
• Memory forensics: 3 finding(s) elsewhere in the guest, not attributed to this sample, e.g. RWX/private injected region in SppExtComObj.E (pid 7080) (rule windows.malfind.Malfind) - memory signal, weight 0.05, confidence 0.30

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
• 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
• th.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://www.microsoft.com/pki/certs/MicrosoftTimeStampPCA.crt0
• http://www.microsoft.com/pki/certs/MicCodSigPCA_08-31-2010.crt0
• http://crl.microsoft.com/pki/crl/products/microsoftrootcert.crl0T
• http://office.microsoft.com
• http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt0
• http://www.microsoft.com/pki/certs/MicTimStaPCA_2010-07-01.crt0
• http://www.w3.org/2001/XMLSchema-instance
• http://www.w3.org/2001/XMLSchema
• http://www.microsoft.com/pki/certs/CSPCA.crt0
• http://www.microsoft.com/pki/certs/tspca.crt0
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Embedded domains

• crl.microsoft.com
• www.microsoft.com
• office.microsoft.com
• www.w3.org

Embedded IP addresses

• 20.184.175.21
• 52.123.252.231
• 20.247.184.197
• 4.230.171.124
• 104.18.33.89
• 52.110.12.11
• 52.110.12.30

File paths

• F:\Office\Target\x86\ship\postc2r\x-none\msoxmled.pdb
• f:\dd\Tools\devdiv\FinalPublicKey.snk

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report