Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a9488bb85da77d7…

MALICIOUS

PDF

37.4 KB Created: 2020-08-19 09:33:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02855004ef71433ba0bcc6c6d6ad281c SHA-1: 76651072b4a3fbbc791a9c002c5770b890f1a636 SHA-256: 1a9488bb85da77d7b0d5aa4a3e6244755592a0d1df0024e671bf99e75e5a7417
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical redirector link to 'ttraff.cc' which is known malicious infrastructure. The document body, though heavily obfuscated, contains text related to 'Candy crush soda pc game' and the malicious URL, suggesting a lure to trick users into clicking the link. The PDF also contains numerous links to Shopify-hosted PDFs, likely part of a link farm to improve search engine ranking for malicious content.

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=candy+crush+soda+pc+game In PDF document text
    • http://files.jadsys.com/uploads/1/3/0/8/130814110/3023938.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/1/0436/2554/5890/files/62295296904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4973/8650/files/53234310014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1284/0862/files/zigupazinavebekapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6511/4775/files/95170735195.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9713/6030/files/80348712834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6513/0658/files/panchatantra_stories_in_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4575/6821/files/97160098554.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/76892145528.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5318/5174/files/45403802830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2585/8723/files/sunetabejuvofus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0106/7166/files/73219039688.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005616.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5616 5460 bytes
SHA-256: 1e6a08f942aea591e0c541bd4e77972a85bf3241c841069c1601fb416bb122ac
font_01_sfnt_off0000687d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x687D 9648 bytes
SHA-256: 1ffa72d860f96548250b95a8ed864e3a733a776ee48af51d06dd6e9676b9b928

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