Malicious PDF — malware analysis report

Static analysis result for SHA-256 60172e4281b6ee47…

MALICIOUS

PDF

39.7 KB Created: 2020-10-07 03:27:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: c1b3ae2363d6ec1292b0c06c0558abe1 SHA-1: 511668d19b5395ca072da3c74274f2970519e383 SHA-256: 60172e4281b6ee4719047ea9ca5c603e44d2b49a1c881958002ff0acc5c527dd
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://cctraff.ru/strik?keyword=preterite+of+ser+and+ir+worksheet In PDF document text
    • https://site-1036987.mozfiles.com/files/1036987/19644443653.pdfIn PDF document text
    • https://site-1043603.mozfiles.com/files/1043603/rawamimotij.pdfIn PDF document text
    • https://site-1036973.mozfiles.com/files/1036973/55094933019.pdfIn PDF document text
    • https://site-1037188.mozfiles.com/files/1037188/35552201533.pdfIn PDF document text
    • https://site-1038717.mozfiles.com/files/1038717/nesupipekiles.pdfIn PDF document text
    • http://files.midwestmozart.org/uploads/1/3/0/9/130969708/xepapatafivogemu.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/1/0430/2441/6931/files/all_tailed_beasts_ranked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8222/7617/files/impulse_response_function_calculator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/3619/6255/files/30892893604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7412/3944/files/gaggia_espresso_machine_not_pumping_water.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5560/3094/files/data_booklet_ib_physics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3439/5295/files/sukhmani_sahib_path_in_punjabi_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5533/0966/files/34734594667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9825/1165/files/att_galaxy_note_3_on_straight_talk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/3567/6831/files/tutuwuwusiwini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/0968/9765/files/donoruk.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_off00005cd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CD6 5120 bytes
SHA-256: 0dc28e8a33d1452693b74144649bfa4a49c6ad028ee9397f56ea19e19c5d9b5c
font_01_sfnt_off00006e55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E55 10268 bytes
SHA-256: a4a8c3c12b7259f4371c48e9cc5db4296709652a1989b13791eaa08938937c9c

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