Malicious PDF — malware analysis report

Static analysis result for SHA-256 67512cd0948d45ae…

MALICIOUS

PDF

85.3 KB Created: 2021-08-16 22:01:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-16
MD5: 1d3aa64147bb3fe7050711635eb4ca64 SHA-1: 39a5ec5d641c3c94ad9d78a5c22ec5c5c2d43abf SHA-256: 67512cd0948d45ae0091cf7d2ad3790202289096e84086d8374995ce2640a211
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV detecting it as a phishing trojan. The file contains numerous external URIs and links to compromised WordPress upload storage, suggesting it is part of a link farm designed to redirect users to malicious sites. While no scripts were explicitly extracted, the presence of external links and the nature of the heuristics indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://garglob.ru/uplcv?utm_term=the+truax+questions+and+answers PDF link annotation
    • http://am-assets.com/aom/magnolia/userfiles/file/31005222709.pdfIn PDF document text
    • http://donkaew-furniture.com/ckfinder/userfiles/files/89950747566.pdfIn PDF document text
    • http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160943f652b061---68250663980.pdfIn PDF document text
    • https://www.marvistasales.com/wp-content/plugins/super-forms/uploads/php/files/ce2febdc8f2ef2c1279bbdbb8bc9de57/43639366419.pdfIn PDF document text
    • https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/43bcc73fe08bc847fa9035311ad5233b/dewup.pdfIn PDF document text
    • http://abwingssuffolk1.com/uploads/files/kegadexonilojofoxezo.pdfIn PDF document text
    • http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6a2d40d3e8---6920326019.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160efe6ae45ddf---rabezu.pdfIn PDF document text
    • http://ylgems.com/file_media/file_image/file/putunerawewijejoneziwun.pdfIn PDF document text
    • https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/472bb1c9bee85f0dac7e382bd783f4a4/lopolirul.pdfIn PDF document text
    • https://vico-domrep.com/ckfinder/userfiles/files/46275918546.pdfIn PDF document text
    • http://asztalosweb.hu/userfiles/file/20966850052.pdfIn PDF document text
    • http://chothuethietbi.info/img/files/986543923.pdfIn PDF document text
    • https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/16110e412ac4c5---zijoguze.pdfIn PDF document text
    • https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1607a904946c78---69372581942.pdfIn PDF document text
    • http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094847fae426---26680385336.pdfIn PDF document text
    • https://www.medicalbi.com/ckfinder/userfiles/files/60031095473.pdfIn PDF document text
    • https://akproauto.com/nbloom/fckuploads/file/kidaxopupanido.pdfIn PDF document text
    • https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609754bed9cba---60248302132.pdfIn PDF document text
    • https://gplacestracker.com/userfiles/file/49988967701.pdfIn PDF document text
    • http://dogninja.com/userfiles/files/97362989983.pdfIn PDF document text
    • http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/7955836316.pdfIn PDF document text
    • https://shoppingplanet.ro/ckfinder/userfiles/files/59404397028.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA08 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001021f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1021F 10696 bytes
SHA-256: a298a4806b04b6a63639b1fbfbae5e300edcd33824414fb5ac8b374e36c14c0c
font_02_sfnt_off00011a82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A82 17296 bytes
SHA-256: d438e3169e9e884e9ecbabb5f5283ad1d56525569eaab42ea05c2f9ab72a5f4e

Open this report in the interactive analyzer, or submit your own file for analysis.