Malicious PDF — malware analysis report

Static analysis result for SHA-256 da772b466c47aad0…

MALICIOUS

PDF

42.3 KB Created: 2020-08-08 17:00:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 59ffb100d59219a05950c2a3eab159bd SHA-1: 9e973716610453040426d6d13b065d5802806ea6 SHA-256: da772b466c47aad073e94b0078c3ff08c2aab3750a846ef7d592e8c01d1fac57
194 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, including a critical redirector link to 'https://ttraff.cc/pify?keyword=battleship+board+game+rules+pdf'. This indicates a social engineering attempt to lure users to malicious infrastructure under the guise of providing game rules. No scripts were extracted, and the document body was heavily obfuscated, but the presence of numerous links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious redirector.

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=battleship+board+game+rules+pdf In PDF document text
    • http://files.rocketroom.co.uk/uploads/1/3/1/3/131380181/7957208.pdfIn PDF document text
    • http://files.ambientmindfulmusic.com/uploads/1/3/1/8/131858592/gavikuxanezef-gazeleta.pdfIn PDF document text
    • http://mukot.gabischefflighting.com/uploads/1/3/0/8/130814328/doxuvovaxuwut.pdfIn PDF document text
    • http://files.elderandersontimestwo.com/uploads/1/3/1/4/131483361/fabeg-bisatizer.pdfIn PDF document text
    • http://files.stgeorgecountrydancing.com/uploads/1/3/0/8/130814492/tazikinepumetasa.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/1/0435/1829/6228/files/98739668631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5173/7498/files/cosplay_commission_contract.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2057/3082/files/bse_odisha_9th_class_math_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jenodilibaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2295/8248/files/pulasalutoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5804/4828/files/lavaxajidomenezozilogoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8305/5782/files/sigugir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9861/0589/files/psychological_modeling_conflicting_theories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3657/1805/files/zibusinobimegadaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2943/6315/files/miscarriage_discharge_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7448/5400/files/bovamikajumebimuvapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5015/5688/files/lowimezedesagubogoj.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_off00006731.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6731 5644 bytes
SHA-256: 35d22d760ce5fc57d151623eaba0124d513d4098e96ee1d5d677f42e20914b15
font_01_sfnt_off00007a34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A34 9904 bytes
SHA-256: 59f969fcfcdd1f85597ca236f824bb5a5e1b94620de330d527a62c8f2f724748