Malicious PDF — malware analysis report

Static analysis result for SHA-256 f956aba06ce793d8…

MALICIOUS

PDF

48.2 KB Created: 2020-08-25 13:52:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8158a9f637eceb6a6b50bdd2b651a799 SHA-1: 2b8e541da1a36103af368d1e68e434a49ec1fadb SHA-256: f956aba06ce793d88bc9bb8eb92b0e294ca9786e6f7e0435eb55463923f78bb5
194 Risk Score

Malware Insights

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

The PDF contains a mass external PDF link farm, with many links pointing to benign Shopify URLs but one critical link to a known malicious redirector. The document body contains obfuscated text and the malicious URL, suggesting a lure to a malicious site. The presence of a malicious redirector and a link farm indicates a phishing or scam attempt.

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=broken+angel+helena In PDF document text
    • http://files.fotaburdur.com/uploads/1/3/1/8/131857199/6299884.pdfIn PDF document text
    • http://xidavili.shuttersmore.com/uploads/1/3/2/7/132712354/7421140.pdfIn PDF document text
    • http://files.headrushtv.com/uploads/1/3/2/6/132681194/1635519.pdfIn PDF document text
    • http://files.shellystill.co.uk/uploads/1/3/1/8/131856306/petuwusenalogi.pdfIn PDF document text
    • https:///a10.gaanacdn.com/images/albums//29/2087229/crop_80x80_2087229.jpg,artistIn 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/1/0438/4813/8912/files/gizizuregixawejusarafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2960/8101/files/busijunufedako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8671/6830/files/anatomy_of_human_bones.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/5656/3103/files/85730059305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/78125022664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5802/6903/files/15471414401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5187/4466/files/genazugimozajadiravoxuxab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9160/7190/files/31572239915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/how_much_are_verizon_points_worth.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5670/9273/files/70613831220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1554/8573/files/score_hero_game_for_laptop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7360/9636/files/xaminupovumuvuxit.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_off00007203.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7203 4544 bytes
SHA-256: 2528b9176974cfbe6b24011f7250ded4d455bb763cdbe86ce02f93137c2cbd5c
font_01_sfnt_off0000815a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x815A 10704 bytes
SHA-256: e590329de88ab49ab0de7591963b4cb720432bbd5b2131f9a35efe1b2dd43753
font_02_sfnt_off0000a5e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5E8 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f