Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2d3162adcd3adb…

MALICIOUS

PDF

117.2 KB Created: 2020-10-04 04:54:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-22
MD5: 55fe2d2f2c9b39ab62d229381d532ab7 SHA-1: 2940d0e8779ac987f6961461aca49aa7072f3577 SHA-256: af2d3162adcd3adb9377eb1f6ae1272b3a10631155ff624a76b5f9c27fbf26cf
204 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • 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://gettraff.ru/strik?keyword=poe+accuracy+rating In PDF document text
    • http://ludoku.finewillrockthehouse.com/uploads/1/3/0/9/130968976/6856758.pdfIn PDF document text
    • http://files.horizonmedicalequipment.net/uploads/1/3/1/3/131379054/336480a1832.pdfIn PDF document text
    • http://mowadisot.andoanderson.com/uploads/1/3/1/6/131606248/1304669.pdfIn PDF document text
    • http://files.restonsusedbookshop.com/uploads/1/3/2/6/132695321/ziduka-fiwin.pdfIn PDF document text
    • http://files.staceyherreraphotography.com/uploads/1/3/2/7/132741476/siroka_tewezamujubas.pdfIn PDF document text
    • http://litij.donniemasters.com/uploads/1/3/1/4/131405965/30e887faa028611.pdfIn PDF document text
    • http://files.technologyallianceontario.com/uploads/1/3/0/7/130776726/xilarosasuvurikitid.pdfIn PDF document text
    • http://files.bribelle.com/uploads/1/3/0/7/130738755/fefezejupu.pdfIn PDF document text
    • http://files.jimmygeeauctions.com/uploads/1/3/2/7/132741535/7252326.pdfIn PDF document text
    • http://wuvike.americanforkband.com/uploads/1/3/2/3/132302987/kerena-jajaxiwabuguli.pdfIn PDF document text
    • http://dujixi.zenbeautyspa.com.au/uploads/1/3/0/7/130775918/tikavafupugom-jokizi.pdfIn PDF document text
    • http://files.cc-opc.org/uploads/1/3/1/4/131405977/8464257.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/1/0482/9629/6610/files/83352668405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2004/0866/files/cash_flow_diagram_powerpoint.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/3638/0831/files/zovebejatibufuvisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/7867/6380/files/vekirenal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1016/2837/files/hp_performance_center_installation_guide.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000166d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x166D7 8536 bytes
SHA-256: cad2a865ee510b54238b0df21f6435ef3d10360fc6a840db00150d54e928a082
font_01_sfnt_off000182b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x182B6 4860 bytes
SHA-256: 3140aa8da72945c35cd13399fafa5ea6ac5ce3970256bdaf1b0cb06c83512aa6
font_02_sfnt_off00019359.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19359 16056 bytes
SHA-256: 66b28c2cb3b8ad294eb60923be566d4770a1841552084db6d01519d8d0a98968