Malicious PDF — malware analysis report

Static analysis result for SHA-256 9596ac4ccb204e40…

MALICIOUS

PDF

43.2 KB Created: 2020-08-07 10:24:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dba8ae094bf3da3bb114cd4a969cb72a SHA-1: db8fee9e1e8dbd4f41da5d90e46860eb930cd713 SHA-256: 9596ac4ccb204e405c5967b7cd50073d3e64e760c05c73fdd08812e838767951
202 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating a phishing or scam attempt. The primary malicious URL is https://ttraff.com/pify?keyword=appsc+group+1+syllabus+2020+pdf+download, which likely leads to further malicious content. The document body text and embedded URLs suggest a lure related to downloading a syllabus, with a call-to-action button present.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=appsc+group+1+syllabus+2020+pdf+download In PDF document text
    • http://files.skunkvalley.com/uploads/1/3/0/7/130740175/5584452.pdfIn PDF document text
    • http://bajenem.susanmastalsfoundation.org/uploads/1/3/2/7/132740362/9508170.pdfIn PDF document text
    • http://files.keyahealth.com/uploads/1/3/1/3/131380175/66238e1ac43eb.pdfIn PDF document text
    • http://files.organicfarmerdon.com/uploads/1/3/1/4/131453485/kupanos.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/1/0430/1609/3849/files/29002943926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/5192/2087/files/english_idioms_dictionary_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9959313526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2525/3023/files/ff14_drowned_city_of_skalla.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4625/6295/files/dotopuka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7005/4805/files/bubaron.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8000/0423/files/pune_road_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8342/3128/files/26521626311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/ridakebexutowikatoki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7780/3925/files/pedagogia_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7353/6161/files/21157861919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4365/9677/files/barycentre_cours.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 7

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_off00006877.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6877 5972 bytes
SHA-256: 2c6db4c9d2f24a4ea1f071bc0d20d341d87d986747111632b94aba25a24353d1
font_01_sfnt_off00007cf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF5 10240 bytes
SHA-256: a60d7a5681173cdf972794d7f9f92a6f90b8bc6141fefe2cc78d4f1d7823b422

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