Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b41f96b9764239c…

MALICIOUS

PDF

39.8 KB Created: 2020-08-23 07:09:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d84c093533f6d03781c81cdcf28ad703 SHA-1: e0be0fdb6737bb83038696810e12a99907f4f953 SHA-256: 9b41f96b9764239c6178307604ac7c53a6a0f680635696fdcfd4ce54c6502bd8
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=man+booker+prize+2017+pdf'. The document body, though partially corrupted, suggests a lure related to the 'Man Booker Prize 2017 PDF'. The presence of numerous links, including the malicious redirector, indicates an attempt to direct users to potentially harmful 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.ru/pify?keyword=man+booker+prize+2017+pdf In PDF document text
    • http://files.theoperaexperience.com/uploads/1/3/0/7/130739490/pakulitakutolek-medamikidaxe-gawivotipizaged-gosoletezukes.pdfIn PDF document text
    • http://files.longrangeacademy.com/uploads/1/3/0/7/130774994/doxad_rexebixezekodo_bulajexapow_tezirawesun.pdfIn PDF document text
    • http://files.nycmiddleschoolbasketballleague.com/uploads/1/3/0/9/130969659/fabaxana.pdfIn PDF document text
    • http://rapox.belovedcc.org/uploads/1/3/1/3/131384609/xepasan.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/1/0439/1541/1608/files/pukujaja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7909/6728/files/citizenship_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4417/5013/files/advanced_learners_oxford_dictionary_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7837/5831/files/99887677560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6643/3429/files/71909576407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8298/1281/files/medamagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3385/4103/files/vutejud.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
🗂 Part of campaign: longrangeacademy.com 4 samples

Related samples 5

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_off00005d21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D21 5492 bytes
SHA-256: 69ca93aca0141bf48f34db4a44d3da286e515731af5febb8fc1f0ee4862a39db
font_01_sfnt_off00006ff1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF1 10192 bytes
SHA-256: fd273fbaa153d918a2f9341d850935baa897a5f2d8abbe23e45faf331e6e316e

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