Malicious PDF — malware analysis report

Static analysis result for SHA-256 2486496d8cde5977…

MALICIOUS

PDF

41.6 KB Created: 2020-10-09 22:15:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: a96bac1a7623888c1cf305ef0306da9b SHA-1: 130f0d1162ea24ec312d14fa56772eb7bbadc401 SHA-256: 2486496d8cde5977b49b8f01305b49cc1d64c57efc3d552e3b42ffeaaf54a33e
194 Risk Score

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://ggtraff.ru/strik?keyword=palm+beach+papa In PDF document text
    • http://files.grapetelevision.com/uploads/1/3/1/4/131438114/5c6f6f6df5afe.pdfIn PDF document text
    • http://gafegovuf.aarpchapter3240.org/uploads/1/3/1/4/131409090/5141721.pdfIn PDF document text
    • http://files.train-and-teach.org/uploads/1/3/1/3/131380741/9aa0b3.pdfIn PDF document text
    • http://files.steakpedos.com/uploads/1/3/0/7/130738482/tirofa-fanub.pdfIn PDF document text
    • http://mozesejo.viszolaygallery.com/uploads/1/3/1/1/131163634/9c2107b.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/1/0487/0602/7670/files/simplify_rational_expressions_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/9637/9044/files/master_machine_learning_algorithms_amazon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3156/8290/files/django_unchained_parents_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/7916/6873/files/fluval_edge_aquarium_stand.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/0303/9903/files/zombie_unblocked_games_hacked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a23e74c6-0655-4396-86be-3cad4835e877/48471498771.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7830e833-cb3c-4d41-a556-fa966a32cbda/73565222720.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c17453c-e8e8-416b-903e-751128d9ceb6/7682986124.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0dc2933-2e31-4a8a-9022-f6542cae00c4/fogozuwonuzizevivi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb3adbf4-993e-4dfc-9587-351855d4d498/tutomizevofotaxelom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab2220c9-efbe-4946-8ded-83321f5ae60e/nesijejujijobuxawuwef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d8ad4e5-1463-41a0-b59b-b8b6e90bee4a/rixerukediz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3eadbaf4-dc5e-497e-927f-3c6b34bed505/89572117144.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51fdba91-106e-4bbd-804d-1db2d01cf5d1/69060362054.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 4

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_off000065e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65E0 5040 bytes
SHA-256: 3da325450f41964ea4c4ae32a39c0fd98e3f41c0acc2e64cca2e2adfd62d4593
font_01_sfnt_off000076de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76DE 10248 bytes
SHA-256: 342cecfb8e79dd57d8407d675e5fc815b58b9e35b78a18e952dcbfd232759d28

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