Malicious PDF — malware analysis report

Static analysis result for SHA-256 715f6d8b49dd83e2…

MALICIOUS

PDF

100.0 KB Created: 2021-07-18 21:45:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: fcc2271a17c2fa512c751531f75e7649 SHA-1: 662e6ed861a7f0bfa53c2f46e71abaa09f519596 SHA-256: 715f6d8b49dd83e2662b36f61e8462d27d1f0167b58a8d2b82a8a50f785842f2
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was identified as malicious by a ML classifier and ClamAV, and heuristics indicate it is an advance-fee scam lure. The document contains numerous links to external PDF files hosted on compromised CMS upload storage, suggesting a link farm designed to distribute malicious content or phish users. No scripts were extracted, but the presence of external links and the scam lure strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/3caeadbcca87f682ac3bf32e082a5c30/7550257582.pdf In PDF document text
    • https://villatoscana-pi.it/userfiles/file/75821993717.pdfIn PDF document text
    • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/160aa11a87d0d5---dejeweregubipejafuzi.pdfIn PDF document text
    • http://fdscience.com/UPFILE/userfiles/files/46656639574.pdfIn PDF document text
    • https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/f8eeb51ee7a539952dbf68c8d7dbbe89/44499030240.pdfIn PDF document text
    • https://www.straightmyteeth.com/wp-content/plugins/super-forms/uploads/php/files/335721fc649a5ecaa61ef3039f7fa14e/84673716463.pdfIn PDF document text
    • https://www.avantagesapp.com/uploads/files/tipal.pdfIn PDF document text
    • https://bhsbeacon.com/FCKeditor/file/nijobiga.pdfIn PDF document text
    • http://johncarroll1967.com/clients/1/18/1896e795ecc2602204d707ec4e69586f/File/65103611141.pdfIn PDF document text
    • http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/16088a01f06837---xopixapamo.pdfIn PDF document text
    • https://aicpwdosaeast.com/ckfinder/userfiles/files/foniwagowavijawowubisopej.pdfIn PDF document text
    • http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607ff93ce96e0---86131584294.pdfIn PDF document text
    • https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/03363f3922c4fb08c39aba0425049557/sofevibu.pdfIn PDF document text
    • http://zhengfutz.com/v15/Upload/file/2021528926465216.pdfIn PDF document text
    • http://bsbcarpet.com/userfiles/file/99846814083.pdfIn PDF document text
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d1195ddfd6---40111810833.pdfIn PDF document text
    • https://c-effeimmobiliare.it/file/jodase.pdfIn PDF document text
    • http://uci.ir/userfiles/file/dumoralarijajajav.pdfIn PDF document text
    • https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/gjt8csvrfmj7p8glua6eb8eh3j/30868438188.pdfIn PDF document text
    • http://thunderstar.cn/userfiles/file/20210708044632584135853.pdfIn PDF document text
    • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609c76a19a757---57172613852.pdfIn PDF document text
    • https://petrovsky14.ru/docs/files/97428597942.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=12th+botany+important+questions+2020PDF link annotation
    • 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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001233f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1233F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00013b56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B56 11168 bytes
SHA-256: ae099c806212acadcef1b33f3df537e8a025e44e58fdc063ff102dd14a33eb41
font_02_sfnt_off0001551c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1551C 17644 bytes
SHA-256: bf1ee2fecaad19123ec573c918795ad7862d8e9bd6b58145014cf30129395976

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