Malicious PDF — malware analysis report

Static analysis result for SHA-256 41808f541cfba136…

MALICIOUS

PDF

32.5 KB Created: 2020-08-24 13:31:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f03154d2da12ba292db8182bf1e4d4b7 SHA-1: abe8ef7da031451133a9f0286238f8dd28fa0d36 SHA-256: 41808f541cfba13694777d27dac8a04fb13b9c72d7a65fe9a452c38e7718a149
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=aerodrome+design+manual' which is flagged as malicious. The presence of numerous Shopify-hosted PDF links suggests an attempt to manipulate search engine results or distribute malicious content through seemingly benign platforms. No scripts were extracted from this sample.

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.com/pify?keyword=aerodrome+design+manual In PDF document text
    • http://pirin.ajportablebuildings.com/uploads/1/3/2/3/132303382/komuse.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/1/0435/8940/2779/files/luxigukoguwebolejalutaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1146/5638/files/85250290672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5996/0218/files/abcd_film_song_mp4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8209/5519/files/30242998692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9073/0398/files/battle_realms_wotw_hero_nightvol_mod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8687/9647/files/duleb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8570/2054/files/gw2_ascended_greatsword_crafting_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9565/4554/files/kexelisigijaxanutoveponij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6712/9504/files/igb_reit_annual_report_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3900/6615/files/xadebunosatalego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3590/2631/files/14115268893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9803/8679/files/zamom.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4360 5132 bytes
SHA-256: 730c7365db7f7a5cdc4703be0dfead7d95ad15350ba88c0908d1f39f1fdc1ec8
font_01_sfnt_off000054ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54BA 9588 bytes
SHA-256: ae3bbb65d1589d0c666fe38491b7e89ab70961de522ff46b51956290033c4ef8

Open this report in the interactive analyzer, or submit your own file for analysis.