Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a71c2df50c97166…

MALICIOUS

PDF

94.8 KB Created: 2021-06-28 12:58:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 69e5e5620fdfc0a9c78da0a50c05e57e SHA-1: 2243a06c1d154d56cec156d46e3403fc36cd0fbb SHA-256: 7a71c2df50c97166d03dcc432a99a2af1518f8ec6f1ffd8344135c442b249617
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains a link farm pointing to numerous domains, many of which appear to be compromised WordPress sites hosting PDF files. The primary purpose seems to be directing users to potentially malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

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=manifest+your+life PDF link annotation
    • http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607750bf88e14---26455656394.pdfIn PDF document text
    • http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/16079d9128a706---koruzivekegon.pdfIn PDF document text
    • http://amy-tsai.com/images_express/userfiles/files/30666349642.pdfIn PDF document text
    • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160767a1e48bdf---23930568442.pdfIn PDF document text
    • https://hankilfood.com/upfile/files/31477021923.pdfIn PDF document text
    • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16071d15d4745f---26797990032.pdfIn PDF document text
    • http://tano-cable.com/d/files/98820132912.pdfIn PDF document text
    • http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1607738951d3a5---tolarotoxoforiliziko.pdfIn PDF document text
    • https://aawyx.com/sites/default/imageuser/file/20753846110.pdfIn PDF document text
    • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a10b5be42c2---patotixizipitozuto.pdfIn PDF document text
    • http://bajajsports.com/userfiles/file/vumugimafuvamibenege.pdfIn PDF document text
    • https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/767d29716e63cd47b6c17a050504f242/53254376881.pdfIn PDF document text
    • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcaa2e31bac---84727842416.pdfIn PDF document text
    • http://93564497.com/userfiles/6352665125.pdfIn PDF document text
    • https://www.helpforbusymums.com/wp-content/plugins/super-forms/uploads/php/files/60058109a3b4d911e699e1090b5273bd/lofofa.pdfIn PDF document text
    • http://wagnerpc.com/userfiles/files/gedalafitotudotujuxefo.pdfIn PDF document text
    • https://jahanchart.ir/data/files/file/zowoluxefinetedogaxiferor.pdfIn PDF document text
    • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cdb4f973317---jibusodajajaroduso.pdfIn PDF document text
    • https://www.chesapeake-lighting.com/wp-content/plugins/super-forms/uploads/php/files/9471d21af43fcd3dd67b0a643a2548de/fewenot.pdfIn PDF document text
    • https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c291e715444---29503855260.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/b9eaa8f1484f1e4cda9785082ee41540/muxexekiwesuminegabo.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11035 17756 bytes
SHA-256: ebd6c88e9601d47f585d5553f456cf9a33a5564e00069ded3db448e6f71f6190
font_01_sfnt_off00013ebf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13EBF 10412 bytes
SHA-256: d09f6f631dbd03a1dac3fe1dddd1a3963f4c1522953832aff1a2d79ba5c1d826
font_02_sfnt_off00015686.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15686 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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