Malicious PDF — malware analysis report

Static analysis result for SHA-256 70e02066b6fc8172…

MALICIOUS

PDF

39.5 KB Created: 2020-10-11 10:13:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 12cc64e0260e0ffd1afbf713e36aa326 SHA-1: 7779bfe87343af814dfdeda7ea76d2803fae8dd1 SHA-256: 70e02066b6fc8172f4870d51a099bee9112baa7abf99bc8a3e773cd7380981ba
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://ttraff.link/pify?keyword=dominio+y+contradominio+calculo+diferencial In PDF document text
    • http://files.marlonkellyloans.com/uploads/1/3/1/4/131410545/bf7f52953030d22.pdfIn PDF document text
    • http://files.riversideblooms.com/uploads/1/3/1/4/131438071/nijopivefa_kemapumeni_masibekidazodi_vadupugepep.pdfIn PDF document text
    • http://files.flyingmissionusa.org/uploads/1/3/1/4/131438823/sazimafixegoludevon.pdfIn PDF document text
    • http://files.poulsenlabduke.com/uploads/1/3/1/4/131438240/duresiz.pdfIn PDF document text
    • http://files.vermilionnature.com/uploads/1/3/1/6/131636834/daluz_fawenolosus_wixogi_voxepobazofere.pdfIn PDF document text
    • http://riwiduf.zaratelabs.com/uploads/1/3/0/7/130775851/garow.pdfIn PDF document text
    • http://files.epic-herbs.com/uploads/1/3/1/4/131407921/salonifaposega-belosodibepam.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/1/0493/1626/6150/files/zedag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5848/7703/files/zikamag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8918/2376/files/kogunepigekirabusojek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ae20f09-f49d-421f-adc4-61ae49f8c158/rifizefenolu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb8cea7d-4ae9-4df7-889a-f0c3ce47a031/21454141728.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39e1abb7-ec25-46a6-854c-37dd6768413b/votinef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9a21aec-3f82-40cc-8b48-284e97ae3c04/66197337149.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B9D 5092 bytes
SHA-256: fd873d19f5a15aa78fc25b52c51ddec1048d3179a261f915bdabfb5262675a43
font_01_sfnt_off00006cd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD5 10656 bytes
SHA-256: 8a4a544a518adf6197810ca0299ccfa0a2537330c8a056b1359f5c99d54cd1d7

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