Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a1f5ee48d8d31da…

MALICIOUS

PDF

74.2 KB Created: 2021-03-01 19:47:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 727da0c3695f37830954be1af46e3b2b SHA-1: 7f4da405b48e23774ee0130f88468e895ac74f39 SHA-256: 1a1f5ee48d8d31daf93555138445be5a803f6e580bd39988a1ff9f21291934c3
76 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains an embedded URL that redirects to a domain associated with malicious activity, disguised as a search query. The ML classifier strongly indicates maliciousness. No scripts were extracted, but the presence of an external URI and the ML flagging suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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://mezovuduw.ru/award?keyword=what+is+required+to+become+a+public+relations+manager PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4406202/normal_6020d59dba9a4.pdfIn PDF document text
    • https://cdn.sqhk.co/nufesewepi/cLjaugg/flower_wall_art_painting.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369332/normal_601bde9faac80.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418013/normal_5ffe81bcdcdf3.pdfIn PDF document text
    • http://c-advance.space/81180810587svwp0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/game_hungry_dragon_mod_apk_rexdl.pdfIn PDF document text
    • https://s3.amazonaws.com/legapatatezisa/jezatikigefuzapekoxin.pdfIn PDF document text
    • https://s3.amazonaws.com/rabewiruzitewa/fiwawo.pdfIn PDF document text
    • https://s3.amazonaws.com/rumezo/35722200803.pdfIn PDF document text
    • https://s3.amazonaws.com/biwubeleba/jekive.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/hafele_catalogue_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/gimixirijinokanizekudi.pdfIn PDF document text
    • http://lobopekogolo.onlinewebshop.net/how_to_do_a_cost_analysis_template.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 8

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_off0000e49b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE49B 5768 bytes
SHA-256: 22ed7e751f49f8fb1a49466af20ac1507b5493c1a0f0062085df82fcd327b003
font_01_sfnt_off0000f814.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF814 10444 bytes
SHA-256: 993ff17cfc7eec4ec23d1a58ae7f63e6210fa3f2bd17894219e523b84d038955

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