Malicious PDF — malware analysis report

Static analysis result for SHA-256 acd30013ab55c6da…

MALICIOUS

PDF

37.6 KB Created: 2020-08-08 16:46:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f1d601ae98891be1e4e0b9be3fdb8a97 SHA-1: d5f6869ab5cd802fdd9b84dea2e987d017258a34 SHA-256: acd30013ab55c6da713452129dee551af00a1722765afd1c716edb276ab9a176
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a lure for downloading a dictionary, which includes a call-to-action phrase. It embeds numerous links, with one specifically pointing to a known malicious redirector. This redirector is designed to lead the user to potentially harmful content, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=merriam+webster+collegiate+dictionary+12th+edition+pdf+free+download In PDF document text
    • http://files.azrielbermant.com/uploads/1/3/1/3/131383269/tuvexerunafi-soxafodepemomu.pdfIn PDF document text
    • http://files.thoughtfulhen.com/uploads/1/3/2/8/132814166/7722132.pdfIn PDF document text
    • http://files.mi-sheffield.com/uploads/1/3/1/6/131606368/niludavifek_rerodotite.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/1/0439/0567/9528/files/effective_communication_skills.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7574/7491/files/python_small_programs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5478/2869/files/community_of_practice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8609/4241/files/39307260311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9596/4328/files/21322683488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/atomic_structure_chemistry_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8397/1237/files/lekuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8239/0440/files/xagetibufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9746/4731/files/zelimitajefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8584587797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5353/9747/files/lowunujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6145/0654/files/subject_verb_agreement_worksheets_with_answers_7th_grade.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_off00005179.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5179 6092 bytes
SHA-256: 6334cd41dab996f518adae842e1bdd3e9709b5f79d78e5f3138eff6bcd6e0788
font_01_sfnt_off0000662e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x662E 10208 bytes
SHA-256: 968fe76d11088958b8f96ee2933cf45c102c15c815a79bd700472dc4f412b1bc

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