Malicious PDF — malware analysis report

Static analysis result for SHA-256 c362b9485a5e9b2c…

MALICIOUS

PDF

37.9 KB Created: 2020-08-05 08:59:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 653261a976d13cfb36a6227b3df6bfea SHA-1: d456947afd188e59cda6a013ca809557071063ec SHA-256: c362b9485a5e9b2ca34bf08060ae6ca18a68ed27a8f182274eff1ee420790d9a
194 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Amtrak downeaster schedule pdf' and includes the malicious URL https://ttraff.cc/pify?keyword=amtrak+downeaster+schedule+pdf. This suggests the document is designed to trick users into clicking the link, leading them to a malicious site.

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=amtrak+downeaster+schedule+pdf In PDF document text
    • http://files.ukprestigeproducts.com/uploads/1/3/0/8/130873942/runezowa_tefeputu_vijepalov.pdfIn PDF document text
    • http://files.equineassistedtherapyofnj.org/uploads/1/3/0/7/130738714/zazokomoda.pdfIn PDF document text
    • http://nidom.nb-peiponyclub.com/uploads/1/3/1/6/131606875/balokapipuje.pdfIn PDF document text
    • http://files.swan-2020.com/uploads/1/3/1/4/131408209/e5fbc980.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/1/0438/3670/2870/files/siwenedobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8760/9497/files/advertising_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8862/5302/files/74091076465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/files/devasuvirowupugevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/megukamokurapozum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5497/9477/files/xerafefaresutesin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1335/7214/files/kezagom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8740/4968/files/refusogisedu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4078/5062/files/modovunox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8673/1671/files/natipasomenijapuwew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5883/0231/files/animation_fill_mode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8759/3632/files/59909489441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5791/3749/files/ranixutilal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9848/1564/files/82654792934.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_off0000500b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x500B 5540 bytes
SHA-256: af2325c5828190871c3abd973196354fa1432c951d413a3d71eff3341d8797c2
font_01_sfnt_off000062cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62CB 12504 bytes
SHA-256: 654c56a9f5c470dfad0cd11557d50c410a116535fd7e552e92e34b0605a2fff0