Malicious PDF — malware analysis report

Static analysis result for SHA-256 4096e2e102d4edbc…

MALICIOUS

PDF

75.6 KB Created: 2021-02-18 15:02:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 6d99014a283dbfc3792879f88ee93336 SHA-1: 28f3f838c2d38eef7f5558cf3a84558ea495c34f SHA-256: 4096e2e102d4edbc024e3e7e5610f63622b89acbbab1ecc834b8ede3297a4956
196 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file contains numerous external links, with a critical heuristic identifying it as an SEO link farm and an image lure linking to an SEO redirector. The primary malicious URL identified is 'https://maypoin.ru/wix?keyword=the+mole+concept+crossword+puzzle+answers', which is likely used for phishing or to serve a second-stage payload. ClamAV also detected this file as 'Pdf.Phishing.Trojan-d2528dad23a95d95-10044376-0'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://maypoin.ru/wix?keyword=the+mole+concept+crossword+puzzle+answers PDF link annotation
    • https://cdn.sqhk.co/levowexesu/cjcRZvr/bbq_near_me_open_today.pdfIn PDF document text
    • https://cdn.sqhk.co/susojitigi/TIqijie/olympic_archery_range_barcelona.pdfIn PDF document text
    • http://lnstagram-help-businesss.com/tawemamedujilolqgif9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489979/normal_6009ec8862e8a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480403/normal_601b4e590bfe4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366388/normal_5fdfab5461a27.pdfIn PDF document text
    • https://cdn.sqhk.co/duponetix/Trhjgjd/rariduxalosizurolemubux.pdfIn PDF document text
    • https://cdn.sqhk.co/genopeno/iigfjhu/synthwave_run_apk.pdfIn PDF document text
    • https://sowidokobixu.weebly.com/uploads/1/3/1/8/131856306/kimunolonagot.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488804/normal_6025b0598231f.pdfIn PDF document text
    • https://cdn.sqhk.co/kobadaxo/ijheVhe/drum_machine_for_sale_philippines.pdfIn PDF document text
    • https://cdn.sqhk.co/zasokolof/2lvcjdD/free_printable_superhero_coloring_pages_preschool.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/nefunupu/jabonajukeburovivujupiki.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/mabifomedifazema.pdfIn PDF document text
    • https://s3.amazonaws.com/xiwevitox/cdr_converter_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xenavuxa/sepoz.pdfIn PDF document text
    • https://s3.amazonaws.com/wunojipu/buhe_bariyan_ringtone_male.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE8D 5236 bytes
SHA-256: 9ac079d371996552f93665ece45dc28a971025c89ee5460e7d5d76bb2ba3b3f4
font_01_sfnt_off0000f049.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF049 10160 bytes
SHA-256: 29589e2b346f8bc8b80bbfe854c45b360225a78b5e5b6cf7083949ab20709c47
font_02_sfnt_off00011314.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11314 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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