Malicious PDF — malware analysis report

Static analysis result for SHA-256 c806ccb84d35f574…

MALICIOUS

PDF

51.5 KB Created: 2020-08-25 16:19:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 46a54d73707eb1969d8bf8de952e90d5 SHA-1: 78e4b0b22a6f64e6f7bb96922ea93af95e1a5cc7 SHA-256: c806ccb84d35f574c27c2664132a079180d89b504ae9890a592fed3ac33e5dd0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.ru/pify?keyword=graphic+organizer+template+for+argumentative+essay'. Another critical heuristic indicates a PDF link farm, suggesting a broad distribution attempt. The document body, though heavily obfuscated, contains text related to 'graphic organizer template for argumentative essay' and the malicious URL, reinforcing the lure.

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.ru/pify?keyword=graphic+organizer+template+for+argumentative+essay In PDF document text
    • http://files.bookedwinmoses.com/uploads/1/3/2/8/132815748/5777980.pdfIn PDF document text
    • http://files.highimpactanalysis.com/uploads/1/3/2/6/132695651/dokejik-gabavaxoba.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/1/0433/8073/6165/files/power_spread_offense_playbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7205/9547/files/bmtc_bus_pass_form_2018-_19.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2830/6341/files/cours_bijection_injection_surjection.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4877/9426/files/carcinoma_in_situ_de_mama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1905/7826/files/gps_map_camera_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/ecological_relationships_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1442/9608/files/86944010349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2785/5522/files/winakekexofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3653/1095/files/bharat_movie_song_slow_motion_pagalworld.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9513/8208/files/bbc_middle_east_news_reporters.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 2

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_off00008a81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A81 5672 bytes
SHA-256: 965bc1e981e7e7f224618595467069281d4c5ef07d76e0ad0fcbed9d6ae4caec
font_01_sfnt_off00009db9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DB9 10216 bytes
SHA-256: 147887f2546723e491d6ee010624975f253400e8ade621777e7d59e4b27eba3c

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