PDF malware analysis — malicious · 8ed8e092d70932dd

MALICIOUS

PDF

75.7 KB Created: 2021-03-14 12:20:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20

MD5: b041e14fd33fe6f41cff559f31d3ba12 SHA-1: b706de43e0c910514cab74c1384ecf344d8389c5 SHA-256: 8ed8e092d70932dd113ed64c2b6cba28591365a2016e5c58e023eae22652d2af

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. It contains a large number of external links, many of which are likely part of an SEO link farm designed to distribute malicious content or phishing lures. The embedded URLs point to potentially malicious domains, suggesting an attempt to redirect users to harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://seumenha.ru/wix?keyword=moxie+beauty+bar+fair+lawn+nj PDF link annotation
- https://cdn.sqhk.co/nivunufozub/g4cgfpH/96788029696.pdfIn PDF document text
- http://ing-cliente.com/94192773891jyb22.pdfIn PDF document text
- https://cdn.sqhk.co/totimujid/aHihPhr/richard_xpress_s._a_products.pdfIn PDF document text
- http://omynutural.space/how_to_connect_phone_to_brookstone_speaker9fbsu.pdfIn PDF document text
- https://cdn.sqhk.co/tadanopi/cpdifgd/gugujujoxiwotota.pdfIn PDF document text
- http://pearhaidhr.fun/23118226386lahpy.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/9138c39b-74f2-491d-977d-e0997e466a61/sap_outline_agreement_change_log.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ad429aeb-ccf8-4e54-9220-f6577e1311e6/65681937012.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/91ddd32e-24ab-4822-91de-b64a03e272ff/56607130467.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ce6b4eac-1288-477c-a4d3-eac3559d71c3/49633972837.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/44bba311-d961-4527-af76-fe287df9b44a/murray_lawn_mower_carburetor_linkage_diagram.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b450e46e-3390-4784-b1bc-124770fd0601/zonereluxugozutilefita.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cc53e9c2-c214-483a-be3d-2a19d4e3592c/how_to_imports_into_goodnotes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/50a61f47-c778-48d7-a715-bc48f8314f73/xesedumepomujujib.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fd126fb5-0bf6-45ae-9c69-487120f83db8/16009303386.pdfIn PDF document text
- https://55963656-6eb1-4b25-bcd5-bb835d65808b.filesusr.com/ugd/0064ae_d775797ae9bc4f9494be0d982dc8660c.pdf?index=trueIn PDF document text
- https://945c5b1a-9feb-4a08-b72d-c905ca1b1520.filesusr.com/ugd/27135d_755e76043b43490f8e9bd4a51636237d.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/3031c3bd-4613-496c-b13c-9b898db68fb7/6412275239.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/eb5c1878-5048-4b13-afab-f3797b84ba31/44372672409.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9520ac91-9345-40fc-b22b-046556dccf87/centripetal_force_meaning_in_bengali.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ad1c6436-c070-49be-b332-173baf25a0ec/joged.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e162.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE162	5064 bytes
SHA-256: `fc22954067a3bb5b6f81e3689dee121ad77bf94322033f8c26235509369dbaf8`
`font_01_sfnt_off0000f2d6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF2D6	1852 bytes
SHA-256: `c879d4b0210e847162f2c6d686728d124bd1d841235a0c83932700cac93a3561`
`font_02_sfnt_off0000fbc8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFBC8	11052 bytes
SHA-256: `d30e9e5de786320dbbb2795d6e69a68edbb32d26c2e6deffadcaac73d6490989`

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