Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa619daacb4c4e53…

MALICIOUS

PDF

42.0 KB Created: 2020-08-06 11:03:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e800661e5f21b7ab209fdaf99ed4828 SHA-1: 35e403c5b9e1fbfa0d223ec38036baadec1fb0a8 SHA-256: fa619daacb4c4e53be75bb82e0685ff57fdc551742ef43d45204f379aee8e594
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=entrepreneurship+pdf+k12'. This URL is likely used to redirect users to malicious content. The document body also contains this URL and numerous other links to PDFs hosted on Shopify, suggesting a link farm or SEO poisoning tactic to improve search engine ranking for malicious content. 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=entrepreneurship+pdf+k12 In PDF document text
    • http://files.thekenbrooksshow.com/uploads/1/3/1/8/131856212/xizezaruridepe-vitizunopenafu-daxeka.pdfIn PDF document text
    • http://files.yogainhornsby.com/uploads/1/3/2/6/132681294/xirovunudato-solatop-wukumonip-dozazavo.pdfIn PDF document text
    • http://files.chadhanson.org/uploads/1/3/0/8/130874633/8970174.pdfIn PDF document text
    • http://files.tattnallarchives.org/uploads/1/3/1/4/131454345/4271624.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/1/0433/6890/6906/files/45355118919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6238/6074/files/bifekomurimupaduna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0903/7720/files/skyrim_guide_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4525/6344/files/tegeden.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9883/8942/files/lufanafokiwutikuraserujof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7788/6367/files/23126215174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0888/3870/files/41334920132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5106/5242/files/kejupuzavofirenu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4292/0869/files/military_inc_by_ayesha_siddiqa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8748/7385/files/rest_api_doc_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6904/6935/files/hansel_and_gretel_2013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3761/3461/files/dokisidedomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5890/5759/files/7387674369.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_off000065cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65CD 5092 bytes
SHA-256: fe97fc629de0e7e1978b61e33bb580f1ea068dbda87a4d478e8ae3687a1e4fb7
font_01_sfnt_off00007727.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7727 10624 bytes
SHA-256: 4a41c3d16780ff2aecb1f3d27ce095ac6ca7270d2a7ad18e0044ae0cb57ba0d9