Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fc1ffc0c6a6b4d9…

MALICIOUS

PDF

44.2 KB Created: 2020-08-06 06:15:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5e073f071422e4535819d6140491ac75 SHA-1: 62f9b146b16fdd28b640e0838da53e46f0f5985e SHA-256: 6fc1ffc0c6a6b4d9e7de7245b6bf5cd449c1381dfd4b19855db7e40166bcf806
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by an ML classifier and contains multiple links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text suggesting it is a notification, likely a lure to encourage clicks. The primary malicious URL identified is https://ttraff.cc/pify?keyword=apspdcl+notification+2020+pdf, which is used in conjunction with a large number of other PDF links hosted on various domains, indicating a link farm or phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=apspdcl+notification+2020+pdf In PDF document text
    • http://files.adventurerunningco.com/uploads/1/3/0/7/130740212/f88527119359.pdfIn PDF document text
    • http://files.flower-junction.com/uploads/1/3/1/4/131438570/xutuzukusutot.pdfIn PDF document text
    • http://depomin.axiswarprize.com/uploads/1/3/1/8/131856372/4942653.pdfIn PDF document text
    • http://gutolot.lakesidegrovers.com/uploads/1/3/1/6/131637257/gadopam-pelipopa.pdfIn PDF document text
    • http://files.rachelannkaplan.com/uploads/1/3/2/6/132696598/1932804.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/1/0428/5526/8518/files/64482694947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2665/3090/files/ziwatuva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8282/5371/files/17820657108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7351/2359/files/28587773321.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85755015361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8253/7365/files/enlightened_journey_osrs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4431/6070/files/36971205325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7217/5781/files/84760849955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2199/7979/files/7780055346.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8451/3444/files/administrative_law_examples_and_explanations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19490865332.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/39858795743.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_off00006e2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E2E 5316 bytes
SHA-256: c66ad45140269d94248195b6b53dec9e6da0d8ae1f0d3b698208ce538e4dace8
font_01_sfnt_off0000805a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x805A 10372 bytes
SHA-256: 05ec3ea4ff39ece3e93f63329759cd2aedaa9eaaaed56f2251b70204e3083adf