Malicious PDF — malware analysis report

Static analysis result for SHA-256 f75a83a299b8ebe9…

MALICIOUS

PDF

41.3 KB Created: 2020-08-16 23:32:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 18c5abc1f563677f8dc111feef54a9b3 SHA-1: 08a803fa3e3e03bf8c8598e49420481247fdb263 SHA-256: f75a83a299b8ebe9f67d5b16938fa7a85e0e33554c81ed2b9497cd9082f78117
202 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'Mpbou e marksheet' and embeds multiple external links. One critical heuristic indicates a malicious redirector link to 'ttraff.com', suggesting the document's primary purpose is to redirect users to malicious infrastructure. The presence of a visual download button lure further supports a social engineering attack. No scripts were extracted, limiting the analysis of further payload execution.

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=mpbou+e+marksheet In PDF document text
    • http://files.salondiversions.com/uploads/1/3/1/4/131437633/7849375.pdfIn PDF document text
    • http://files.nevewinter.com/uploads/1/3/1/0/131070866/c2585.pdfIn PDF document text
    • http://files.gunmess.com/uploads/1/3/0/8/130814280/30e4a2.pdfIn PDF document text
    • http://duguni.guntweaks.com/uploads/1/3/0/7/130776485/5363455.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/1/0431/9238/5700/files/76218243395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6657/2452/files/irenaean_theodicy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7715/7542/files/tratamiento_farmacologico_de_la_rinitis_alergica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8528/2980/files/16105501139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5253/8787/files/free_credit_card_statement_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2021/4681/files/dejike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/metegemekipezafekude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5156/3670/files/digestion_and_absorption_of_carbohydrates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9132/0229/files/16796912082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7440/5023/files/suzizufokoses.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 8

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_off000063c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C2 5236 bytes
SHA-256: 49da2be741ca56c694ee007708e9ab1855aebcc726016b4895db72bef082745a
font_01_sfnt_off00007563.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7563 10244 bytes
SHA-256: f5d6f75157842116f308d5c5f4f6d50744b64acf842368f50f8c9634e3a6abeb

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