Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea07f42fdf91c7c7…

MALICIOUS

PDF

93.5 KB Created: 2021-06-27 02:26:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 6456c036101a22551d9f8a63b5af7794 SHA-1: f69e3c2b3f23ecac805e99a75aebb4c938cc7bb3 SHA-256: ea07f42fdf91c7c7ff1c25e455fff468c3799b75f79f5de4eacadce54398e4a8
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified the document as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to redirect users to malicious sites. No scripts were extracted, but the structure and URL patterns are indicative of a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9927

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://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/qr35h2sadk15r6pauo328datk7/videwunexefabu.pdf In PDF document text
    • https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/0227c0bb14f4668b832c44211a1993f4/62272982359.pdfIn PDF document text
    • https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606cce6ab936c---73538857524.pdfIn PDF document text
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/651d39e1c8dcc838c076d22bbb30c6db/81843491275.pdfIn PDF document text
    • http://vivo-mebel.ru/upload/file/42646578344.pdfIn PDF document text
    • https://burkina-businessschool.com/business_school/uploads/file/wuwedotuwowixigis.pdfIn PDF document text
    • https://atlanthealth.com/wp-content/plugins/super-forms/uploads/php/files/1c2804de5addfeef04e042d709ff4a22/45347807365.pdfIn PDF document text
    • http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160d4f45206974---70944157269.pdfIn PDF document text
    • https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16070dd5e6f8ce---52943782322.pdfIn PDF document text
    • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/bc7f6d83f2802881ec67951934f1c09f/vevibadawiwedotomufusafim.pdfIn PDF document text
    • http://sbox-technology.com/upload/datoteke/72668858164.pdfIn PDF document text
    • https://aadharshilaschool.org/userfiles/file/dubited.pdfIn PDF document text
    • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607ef11cd8abe---91978339720.pdfIn PDF document text
    • http://kalmi.ru/upfiles/files/zogutepemumixebexure.pdfIn PDF document text
    • https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160ac99159a242---funoramixuruzu.pdfIn PDF document text
    • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a8e1d4dcf2f---bodevawonarigal.pdfIn PDF document text
    • https://porterbrothersltd.com/app/webroot/uploads/tipujupexom.pdfIn PDF document text
    • http://spreewaldatelier.de/img/editor/file/femejeduzuvudetumakakoxal.pdfIn PDF document text
    • http://hesexpo.com/img/editor/image/file/fimokesabewizibejazuvof.pdfIn PDF document text
    • http://ebsenglish.net/_UploadFile/Images/file/70447533156.pdfIn PDF document text
    • http://hitecds.com/userfiles/file/gelirelenelize.pdfIn PDF document text
    • http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b87c439d4df---15131695762.pdfIn PDF document text
    • http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d009dbc9cf---77564629346.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=knock+them+dead+meaningPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000f165.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xF165 27708 bytes
SHA-256: a5396709c84e4e7e271c75291cf8f903f2ab4fe447435b441f530d64c5b9d078
font_00_sfnt_off0000d954.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD954 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000122fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122FC 17484 bytes
SHA-256: 215672e7ddf9b4da0de0445d57468d783f2824148609256ab59545d0ab9c6d77
font_03_sfnt_off00015050.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15050 10584 bytes
SHA-256: 1af4393bdfbea08aaf6a332eabb7dce8a378330591801e630f6eee4e26542dd1

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