Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d887bc6d5979e4b…

MALICIOUS

PDF

375.6 KB Created: 2022-01-07 12:53:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: cb9edb2599636f411fd566f6ebeea8dd SHA-1: a0a61c23f600645ec70f2cc1816e6683c6168c9e SHA-256: 5d887bc6d5979e4bce4b020fa037b8c57087d282878aeb4723e24d556c7190ac
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6854

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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 http://fine-trading-knotwork.com/uploads/media/65119195029.pdf In PDF document text
    • http://bwemfjhjk.friend-match.com/upload/files/77255603217.pdfIn PDF document text
    • http://iviltra.lt/images/files/77121340891.pdfIn PDF document text
    • http://oldstat.ww.tj/img/file/98546029606.pdfIn PDF document text
    • http://brukikostka.pl/uploads/page/file/moxifobujo.pdfIn PDF document text
    • https://rugsinc.in/UserFiles/files/18423492271.pdfIn PDF document text
    • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/c7a099103f7204c003edc11bfa5e7ce2/42795060933.pdfIn PDF document text
    • https://www.agcontraincendios.es/ckfinder/userfiles/files/2376444269.pdfIn PDF document text
    • http://gorsilawfirm.com/userfiles/file/dopozifujumegarivazulasa.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16159ebaa26886---tokuratevemi.pdfIn PDF document text
    • http://ruben.pl/ckfinder/userfiles/files/komapowebi.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/g5nr4vh17503bigkvqs7s622r1/gafugisisolatakodisada.pdfIn PDF document text
    • http://xn--80aafjbawrcdgsodbdciig4a5v.xn--p1ai/pict/file/24399468470.pdfIn PDF document text
    • https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/4bf5c9080fa1bd14d2f7363a6a2f9e53/76988113601.pdfIn PDF document text
    • http://rnralpha.cz/res/file/1569944396.pdfIn PDF document text
    • https://bisleri.genefied.co/ckfinder/userfiles/files/gipaziripaxag.pdfIn PDF document text
    • https://vicareyou.com/userfiles/file/pipejuwedoduvom.pdfIn PDF document text
    • http://musicincw.com/fckeditor/userfiles/image/40937336462.pdfIn PDF document text
    • http://24x7taazasamachar.com/assets/ckfinder/core/connector/php/uploads/files/gipikeramejosewerawaxi.pdfIn PDF document text
    • https://eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/biwob.pdfIn PDF document text
    • https://iimranchi.ac.in/ckfinder/uploads/userfiles/files/82112938487.pdfIn PDF document text
    • https://bandotrading.it/uploads/file/96602569235.pdfIn PDF document text
    • http://objets.immoweiss.lu/userfiles/files/nezejagevatafujuzijiw.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/23D8k0Ec_6w/uplcv?utm_term=anime+couple+picturesPDF 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_off00056f2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56F2F 19068 bytes
SHA-256: c3e6410e8f3472fad0b3e2aee7660aa0f3098d55099b2694f3253cc486af1af0
font_01_sfnt_off0005a146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A146 10452 bytes
SHA-256: d18b41e2f672f876a896e41a02e03d3d2e29f9ef23dbc00eb7f09adbb44564a3
font_02_sfnt_off0005b901.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B901 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336