Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d651162189c91d3…

MALICIOUS

PDF

40.7 KB Created: 2020-08-17 13:33:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1891f15dd17a14a3d1d997cb5536e1ad SHA-1: 6a141eb28b9bbac668959f3c5eb39edf7d62f8c5 SHA-256: 7d651162189c91d34053558e174bc400c655825a5d4a148599f9126606c0ec43
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many of which point to a redirector service designed for SEO spam and phishing. The primary redirector URL is 'https://ttraff.cc/pify?keyword=u+dictionary+app++for+windows+7', which is flagged as malicious. This suggests the document is part of a phishing campaign, likely using a "free download" lure to trick users into visiting malicious sites. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.cc/pify?keyword=u+dictionary+app++for+windows+7 In PDF document text
    • http://fabitane.greaterraleighchapter.com/uploads/1/3/0/7/130739629/jogulagavopu.pdfIn PDF document text
    • http://files.abilenecares.org/uploads/1/3/2/6/132695782/xirime_sunakox_fikop_xalunoxipifokim.pdfIn PDF document text
    • http://files.stuffbyjonbonner.com/uploads/1/3/0/7/130775215/3030264.pdfIn PDF document text
    • http://senumo.oscarmoralesfotografia.com/uploads/1/3/1/3/131383544/vixomikew.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2874/1285/files/osrs_1-_99_herblore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0709/0589/files/savizokewinar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8766/7104/files/zujaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/citizen_eco_drive_skyhawk_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5727/4270/files/18447811624.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3264/0674/files/wozapibisezuruzed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0681/9493/files/52240004157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0094/5048/files/venom_2018_imdb_parents_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9726/0192/files/93188325552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0799/1208/files/lutulam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0978/5499/files/audit_bureau_of_circulation_report_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6694/9786/files/phase_1_and_phase_2_reactions_in_drug_metabolism.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

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000616c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616C 5384 bytes
SHA-256: 46efda1680bdee28f1d42c7439088676ad5c5401874339394a43eed36fa37d99
font_01_sfnt_off000073e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73E5 9888 bytes
SHA-256: 82a19edf0a0913c561f66cd371b0c2d770b6b50c0116c519c42df9c7d4168477

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