Malicious PDF — malware analysis report

Static analysis result for SHA-256 77997be181cfb47b…

MALICIOUS

PDF

41.3 KB Created: 2020-10-15 02:24:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: ce262ed8e1252ecee0f83b5230c1f9e9 SHA-1: e7ac57e1c0b144abb45a48acc95f0cc570b3b657 SHA-256: 77997be181cfb47b8f7ef7841242b2a2861af59f3991d9dc22554c28c6ee9add
144 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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/123?keyword=2020+buick+lacrosse+cxl+owners-manual In PDF document text
    • https://kasukironumasex.weebly.com/uploads/1/3/1/4/131454791/7324120.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/ruxozukozuvazu.pdfIn PDF document text
    • https://vuzevarezevarot.weebly.com/uploads/1/3/0/7/130740461/4ea5f8282d36a85.pdfIn PDF document text
    • https://ruwopevod.weebly.com/uploads/1/3/1/3/131397973/50af8fd7b75.pdfIn PDF document text
    • https://site-1037253.mozfiles.com/files/1037253/61724694109.pdfIn PDF document text
    • https://site-1037839.mozfiles.com/files/1037839/jumafaloziwube.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367621/normal_5f87504c29eff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367294/normal_5f876cbf4b578.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc0c512d-143f-469f-bc64-a0577d26792d/wewigelobawozikij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a18ae859-b48a-4c28-bc47-9b65eb3edb9b/8517941453.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e819ac6e-0d6a-4bab-abe7-166b67539fa8/berimifunijipudeloxelamaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf23cc2f-f2cf-4158-95cd-f53109776010/lewafafok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b42fdd7-2d16-4f98-8322-ba39b21510eb/59730823469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9038/5823/files/fast_lyrics_sueco_remix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4394/5622/files/mountains_and_basins_crops.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_off0000627e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x627E 5520 bytes
SHA-256: f069cf72361c5eb99477d81a738ea0fe0333976813a8719de8d71309c42a6dab
font_01_sfnt_off00007535.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7535 10348 bytes
SHA-256: 1a77f19f0270ef8efee4c8ae2564e7ffdce9d78e4d7ea1b094ec89c84655455f

Open this report in the interactive analyzer, or submit your own file for analysis.