Malicious PDF — malware analysis report

Static analysis result for SHA-256 23f76f0d011b7ad8…

MALICIOUS

PDF

52.1 KB Created: 2020-08-04 07:03:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7d0092d33f878b48ff023b1e64cab063 SHA-1: 3a02e20b6bc4b1f934371ab32c700909c3745f7c SHA-256: 23f76f0d011b7ad81e6a7b603b10241238a945bf976c4e544b887dddc5b3d612
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a malicious redirector link (https://ttraff.cc/pify?keyword=makalah+daulah+abbasiyah+pdf), indicating an attempt to direct users to harmful content. Another heuristic flagged the document as a link farm, suggesting a tactic to artificially inflate search engine rankings or distribute malicious links broadly. The presence of numerous PDF links, including those hosted on Shopify, further supports the link farm detection.

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=makalah+daulah+abbasiyah+pdf In PDF document text
    • http://bawemi.rustnj.com/uploads/1/3/2/6/132681504/mulivitedujejas.pdfIn PDF document text
    • http://files.inclusionatwork.net/uploads/1/3/2/6/132681579/9199572.pdfIn PDF document text
    • http://files.shaun-evans.com/uploads/1/3/0/8/130873851/8285699.pdfIn PDF document text
    • http://files.compassionatesoulscounseling.com/uploads/1/3/0/9/130969172/542730.pdfIn PDF document text
    • http://files.balofsk9academy.com/uploads/1/3/1/6/131606502/sadotes.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://cdn.shopify.com/s/files/1/0433/0032/3478/files/dedef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4364/2792/files/perl_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vibemegabixowosepabotabux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7358/4793/files/fall_out_boys_immortals_mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9515/4070/files/37758706356.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0802/4985/files/afro_blue_real_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8617/5651/files/tim_keller_every_good_endeavor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8558/6841/files/dikudilefewixemamowiragul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46605756913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7901/5327/files/25404904114.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6871/0294/files/tropical_cuties_nude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96989945255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9224/5666/files/limirixulu.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_off0000825e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x825E 4812 bytes
SHA-256: 9a83eb4c3fb3324a20b25ba8e6d8ea6feb0c4a052d00a276a9d6f4cef2bc32c3
font_01_sfnt_off000092b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92B9 10084 bytes
SHA-256: 62f72ca8d7aed1711efd421cedeb87163b00b009dbbbd1a2ca1f731b14f67c17
font_02_sfnt_off0000b53f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB53F 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378