Malicious PDF — malware analysis report

Static analysis result for SHA-256 e41df0119193370c…

MALICIOUS

PDF

44.7 KB Created: 2020-11-01 21:53:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 415b5a89068870328dec68ae5a8e98d0 SHA-1: b62be56129d029c4e119c6b3dfa0b87232b56eda SHA-256: e41df0119193370c3845c7025be116ae2eb4681c2edca545c7c7a5277ac982ad
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=what+is+my+bfe+address+lookup+tool In PDF document text
    • https://luxapojago.weebly.com/uploads/1/3/4/3/134327771/nekonaduxagodikamog.pdfIn PDF document text
    • https://lafapimiwegu.weebly.com/uploads/1/3/4/0/134041150/8d2a95.pdfIn PDF document text
    • https://sasakafu.weebly.com/uploads/1/3/4/3/134371045/6828721.pdfIn PDF document text
    • https://tumixivig.weebly.com/uploads/1/3/1/6/131636813/a6ee5fd.pdfIn PDF document text
    • https://nowusunomotir.weebly.com/uploads/1/3/4/3/134314498/6561632.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/6034a112-a7b2-4913-bb09-6ca9f1baed75/2010_jetta_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/1128179677.pdfIn PDF document text
    • https://s3.amazonaws.com/dorobukasawituw/escala_de_alvarado_pediatria.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/nazegasosetovuj.pdfIn PDF document text
    • https://s3.amazonaws.com/nonabafat/bruno_latour_reassembling_the_social.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e54a794-d06a-4cea-b84c-6fd0e6bcb376/national_treasure_2_full_movie_free.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/77578127658.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/anemia_sideroblastica.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36b6fd29-0eb3-487c-9838-fe26123cab51/ridewodak.pdfIn PDF document text
    • https://s3.amazonaws.com/gupawupigawono/songs_about_colors_and_shapes.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_off00006f49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F49 5600 bytes
SHA-256: 8bdcf67a1d929e9320d09b96c2ed0e4c94ad923ffeeb2d8a9ecf692947444337
font_01_sfnt_off00008235.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8235 10584 bytes
SHA-256: 5aea53bc5eed4658d90bdd3ec953bf5ad4c0ae609242011fd49b57368d6a1264