Malicious PDF — malware analysis report

Static analysis result for SHA-256 704a1acb3226f4c4…

MALICIOUS

PDF

48.2 KB Created: 2020-10-27 08:11:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 3c540d2cc1e3b7bd1e7f6a8915854fe0 SHA-1: 0ae45e2021c151481aa5226fe027d3b0762d4be6 SHA-256: 704a1acb3226f4c45b5465f6cb9858f4bd9eb235f483055a957e9648ad14cdbc
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.me/123?keyword=fuji+finepix+s8630+manual In PDF document text
    • https://rabugotekinevod.weebly.com/uploads/1/3/1/8/131871666/sijubilexuzut.pdfIn PDF document text
    • https://wosezobar.weebly.com/uploads/1/3/1/8/131856012/panuponi.pdfIn PDF document text
    • https://nevijajemiwawo.weebly.com/uploads/1/3/4/3/134340376/luniwo-pazazodadiwu-jitubafamejuke-rewexawo.pdfIn PDF document text
    • https://gogakasepasepun.weebly.com/uploads/1/3/4/3/134375341/xamek.pdfIn PDF document text
    • https://furifusopuwebe.weebly.com/uploads/1/3/4/4/134471692/3117269.pdfIn PDF document text
    • https://vodipewelo.weebly.com/uploads/1/3/1/6/131637384/8280916.pdfIn PDF document text
    • https://vapipokolodux.weebly.com/uploads/1/3/4/3/134307816/4744853.pdfIn PDF document text
    • https://zimiduninu.weebly.com/uploads/1/3/1/6/131637103/laxipeluleke.pdfIn PDF document text
    • https://zosupexaduj.weebly.com/uploads/1/3/0/7/130738593/laranesaxuxipa-pawaridoji-gavawamudo-ribubidet.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/e1aab89e-253f-41b7-bb16-ab1f3c207279/bopajufimaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3509006-8b9f-420c-9ebf-94563b59b0da/lofuluneramudulukemu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5b542b6-d14a-4a8f-9c15-fced81200fd1/zozojomegigo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cfcdcf2-ad13-42e0-b278-982a834574d5/betty_crocker_bread_machine_recipe_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7a3d98f-813d-4156-bf48-f82ed074905a/budget_dello_stato_italiano.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e9259c7-47bf-4ab3-8600-35b6dea76876/50737684885.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/def5160b-dfce-45bd-8586-710e9a785bd5/tilis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4532/9832/files/battery_wall_sconce.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/6093/1991/files/spaceflight_simulator_mod_apk_latest.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_off00007aa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA6 5704 bytes
SHA-256: ea517102ae484f113c2a1c2c62c9e6f68dd2005b7dafce4a88d3bc6a7b02940d
font_01_sfnt_off00008e02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E02 10924 bytes
SHA-256: 924c93809c750e61811691f14ded49983355e52644c4a6d535acda0d1e9944af

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