Malicious PDF — malware analysis report

Static analysis result for SHA-256 98f22afba64deadb…

MALICIOUS

PDF

42.2 KB Created: 2020-10-11 09:58:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-08
MD5: cc501793094da08d7cfcadfe8074273f SHA-1: 6d8a09dd4485a8b90ecd4cb513abbf661211ece2 SHA-256: 98f22afba64deadb51408badddc5d142c8eadc7c54ce6013868c21b2507924f9
184 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.
  • 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.
  • 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://gettraff.ru/strik?keyword=travel+guide+training In PDF document text
    • http://files.kirstenjoan.com/uploads/1/3/2/3/132303354/fedeno.pdfIn PDF document text
    • http://files.dickinsoncountydems.com/uploads/1/3/2/6/132696064/donipefuxipu_fuwifimak_pasamoxoretix.pdfIn PDF document text
    • http://files.juaj.nl/uploads/1/3/0/7/130776110/9401662.pdfIn PDF document text
    • http://files.jetchcreations.com/uploads/1/3/1/3/131378837/masixunizepalo.pdfIn PDF document text
    • http://files.amyward123.com/uploads/1/3/2/6/132695321/7383c.pdfIn PDF document text
    • http://files.crossfirerec.com/uploads/1/3/1/8/131857114/kuviwixa.pdfIn PDF document text
    • http://files.coolappsforschools.com/uploads/1/3/0/7/130775940/runizifanebanu-petika-pisapibojoruziz-miwalatitejabuz.pdfIn PDF document text
    • http://tugabilem.ppjass.org/uploads/1/3/1/4/131454165/7951611.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000688d.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000688d.bin)
    • https://uploads.strikinglycdn.com/files/c30491ed-7915-498e-9e2c-bbd60aebe15a/63847604862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/0352/2467/files/heat_transmission_types.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1228/2789/files/anglo_saxon_literature_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8447/1719/files/kinh_tin_knh.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4256/9368/files/gold_crown_volleyball_tryouts.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 extracted file (font_00_sfnt_off0000688d.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000688d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x688D 4824 bytes
SHA-256: 6b7d40ccb373aa29402c604c21537cc44ee3ad1cfa1bc89d7a5c6dc8178e3158
font_01_sfnt_off00007909.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7909 10268 bytes
SHA-256: 72a9fdc2e237d183ba3c88480990c4991518943fd622591107b5e54d978f6ff2