Malicious PDF — malware analysis report

Static analysis result for SHA-256 2915703242380f0b…

MALICIOUS

PDF

60.4 KB Created: 2020-10-17 21:59:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2c19130616f3921c6e9a8d9542d1a89e SHA-1: e091e3e7c14aec98cd1c481c1cf892eed76f9621 SHA-256: 2915703242380f0b0d959d3f73d746a9faddff8909f4103e63da2e6beb0756eb
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/123?keyword=nutrition+reviews+journal+author+guidelines In PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/jixidused.pdfIn PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/4140341.pdfIn PDF document text
    • https://dubuzosokiboxof.weebly.com/uploads/1/3/1/1/131163723/sapije.pdfIn PDF document text
    • https://xonimitofowe.weebly.com/uploads/1/3/2/6/132682232/4380478.pdfIn PDF document text
    • https://vimiwegom.weebly.com/uploads/1/3/0/7/130775837/fetusudapuw.pdfIn PDF document text
    • https://gewosawoma.weebly.com/uploads/1/3/0/7/130739201/daxijupogezirox_buvugoka_wegodafalofal_fazinepukoguke.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/3409757.pdfIn PDF document text
    • https://lajojixuvoporor.weebly.com/uploads/1/3/0/7/130738555/7beaeccb0e821.pdfIn PDF document text
    • https://rabifupokuwu.weebly.com/uploads/1/3/1/1/131164250/makumepaju-kewebovidibapub.pdfIn PDF document text
    • https://pidofuvu.weebly.com/uploads/1/3/0/7/130739764/woxetukiwino_mupizazetanev_wofigagidip.pdfIn PDF document text
    • https://riragojefo.weebly.com/uploads/1/3/1/8/131857115/pogobigodeloxilipoza.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/sokilijaw.pdfIn PDF document text
    • https://togitarusufojir.weebly.com/uploads/1/3/2/6/132681229/gizewuripena-xitipi.pdfIn PDF document text
    • https://nanorobudilason.weebly.com/uploads/1/3/0/7/130775181/8102170.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/1/0268/7598/6116/files/android_battery_calibration_no_root.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7808/1959/files/figury_paskie_sprawdzian_3_gimnazjum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9233/9614/files/73259427266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/3201/8583/files/jabibawozibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/5772/0729/files/tixoparemelujotidewifab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2798ff3-45ea-49a7-849e-53268c29a93c/kunajirojezagogabekinudeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cfb0e8c-fc7b-4a99-900d-5cf27bbcbcbb/tezamubij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2cadf298-8b33-41f2-b610-7ad11dc2b197/46506539045.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b0cd385-0a03-4b96-a921-cd5edf4c4c83/tukenupenijarevixufejuliz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f86796f5-1c31-401c-a318-3bdaaecee3eb/gumute.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_off0000ac93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC93 5284 bytes
SHA-256: c6116603f85d8cc127d9bbf2629fe0772b03f73848bfa3260eedc16dcfc2699f
font_01_sfnt_off0000be97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE97 10812 bytes
SHA-256: 5fbbb528e64f5df2f11f6e7a9d2114da72b94dafaae7e35afd39665a3491a46e