Malicious PDF — malware analysis report

Static analysis result for SHA-256 40e206cc00528287…

MALICIOUS

PDF

38.8 KB Created: 2020-10-15 21:58:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7b0d4bcff5b87453283872f6e311506e SHA-1: 2ec8be421b471d07aeb79df7e6094a5e323ebbd9 SHA-256: 40e206cc0052828709b89f8746fd7966f0e40704034b6c4a7639067fe6cd92f1
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=hungry+shark+world+cheats+apk+download In PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/3079835.pdfIn PDF document text
    • https://gewosawoma.weebly.com/uploads/1/3/0/7/130739201/tomugewovafol.pdfIn PDF document text
    • https://jiwadurator.weebly.com/uploads/1/3/0/7/130776405/gitiwebopusose.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/8276696.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/3409757.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/xewuj.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/linurigaruxox.pdfIn PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/2697538.pdfIn PDF document text
    • https://site-1039597.mozfiles.com/files/1039597/lifamalorof.pdfIn PDF document text
    • https://site-1040620.mozfiles.com/files/1040620/mikudokulukali.pdfIn PDF document text
    • https://site-1036833.mozfiles.com/files/1036833/fawedaro.pdfIn PDF document text
    • https://site-1041950.mozfiles.com/files/1041950/zaratezona.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/1/0430/3860/5461/files/jozosotadosomod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5429/1361/files/game_of_thrones_winter_is_coming_gift_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/8446/8390/files/el_gato_gomez_website.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/gudaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/9776/0167/files/katana_shift_knob_frs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a576ee46-c340-4835-ba43-2917abc74330/10838784185.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3142edf6-adf3-4475-bb3f-856a44ae3f0b/19851863262.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8b01608-4bde-45a4-b8e3-a2c83da5a96e/mapobug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66dc4547-ab8b-46a7-8e16-d0061caa13e6/35254625470.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d50558e9-eb7e-41b9-84b2-05e904db9372/kiriwelipigesifulobigevug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1eac3d79-c5db-4eed-acb3-55a1f84c3eb9/nojejerav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d35660c8-0e2a-458f-a234-50e20475b1c9/876964774.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_off0000565a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x565A 5556 bytes
SHA-256: 6f4c307aae3569fae0c846634d55c94995eaf7772522e5b2045408212dc1cc60
font_01_sfnt_off00006946.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6946 10660 bytes
SHA-256: ecc30720119ecc521609f41b32e3d6056eaee11498deba9a9c1090d55da4facc

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