Malicious PDF — malware analysis report

Static analysis result for SHA-256 2201e9d1cebd7e7b…

MALICIOUS

PDF

73.3 KB Created: 2021-03-13 14:52:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 418faced1bc7c569509feddc84fa0989 SHA-1: 79a9ee09cbf93460b95c4cb2384b9cb4e43806bf SHA-256: 2201e9d1cebd7e7b8772972f9b4759882ae85ba92939b804eaacedb7cc464b63
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://jottigo.ru/wix?keyword=general+graardor+guide+osrs PDF link annotation
    • https://nesurufaratetud.weebly.com/uploads/1/3/1/4/131408203/jalibukuzos.pdfIn PDF document text
    • https://cdn.sqhk.co/juxerawabuf/8hiiiha/street_of_rage_4_extra_characters.pdfIn PDF document text
    • http://tixshopclub.fun/what_is_multivariate_in_statistics84jpj.pdfIn PDF document text
    • https://cdn.sqhk.co/fezifoxunif/didohia/call_of_winter_war_modern_strike_gun_shooters.pdfIn PDF document text
    • http://kofojoxake.mygamesonline.org/18335124115.pdfIn PDF document text
    • http://francobusiness.com/smiley_face_textzwj5q.pdfIn PDF document text
    • http://tudovawo.22web.org/bones_3d_anatomy_apk.pdfIn PDF document text
    • http://lomigakorak.getenjoyment.net/80011537203.pdfIn PDF document text
    • http://namedaun.fun/mozezaniduxa2h1j.pdfIn PDF document text
    • https://sipovabamekejo.weebly.com/uploads/1/3/5/3/135391609/22da1a.pdfIn PDF document text
    • http://jinevul.mygamesonline.org/adding_fractions_with_different_denominators_worksheet_tes.pdfIn PDF document text
    • https://zezuwosizu.weebly.com/uploads/1/3/4/4/134459619/c7cffb5a7eebbee.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/19939860-d999-4255-afa8-a5ffa2089e88/bepubegefexor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e34d546a-c556-402f-959f-cc6a9accd088/what_intermolecular_forces_are_present_in_pentanol_and_water.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/427eff67-7c46-40fe-9094-9a86afd6189c/adobe_rush_size.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81ce7423-6fe3-4efa-bd6d-8451eaf32969/how_to_assemble_ikea_malm_bed.pdfIn PDF document text
    • http://bogibil.rf.gd/fosetofeza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cb4613b-85b2-43c2-913e-f6e9cab2f697/bijujemurofomowufon.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_off0000e29d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE29D 5024 bytes
SHA-256: 43fbae5bd0347a1de5d91bb95ba224cd71297f13b674d9eb0a9feff5941bde10
font_01_sfnt_off0000f3bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3BD 10780 bytes
SHA-256: 5c3a985c1b15181ff29c2261cfcae042e34d05704282ea2b4a6e3f9451971077

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