Malicious PDF — malware analysis report

Static analysis result for SHA-256 acb4715c5e3980fd…

MALICIOUS

PDF

46.8 KB Created: 2020-11-08 10:14:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: 6f5073e3158b6f4ff9251fe40ff8df2c SHA-1: b87386592878a8748f591b4a4419aa43b8a9dcbd SHA-256: acb4715c5e3980fd8eaaa4129ea09f99bd4446040ba335300fd544c3e87e7780
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://traffset.ru/aws?keyword=dragon+ball+dokkan+battle+summon+animations PDF link annotation
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/5337016.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369932/normal_5f90a7b0ce251.pdfIn PDF document text
    • https://juporolo.weebly.com/uploads/1/3/1/3/131380745/bb778.pdfIn PDF document text
    • https://basurujilitafap.weebly.com/uploads/1/3/4/5/134595952/femewipizow.pdfIn PDF document text
    • https://gemenudotipetal.weebly.com/uploads/1/3/2/6/132695720/narobubo_nilaguvuzuvujeb_gomezu_fexogufuputat.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xanofamaja/spalding_beast_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/17645999442.pdfIn PDF document text
    • https://woragolofumo.files.wordpress.com/2020/11/solve_and_graph_inequalities_worksheet.pdfIn PDF document text
    • https://manetomimexa.files.wordpress.com/2020/11/lugotorizereziwatogukomak.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/ssf-6_silver_solder_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/coca_cola_company_code_of_ethics.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/21646109327.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/bihar_si_old_paper.pdfIn PDF document text
    • https://s3.amazonaws.com/pexodugosa/common_mistakes_in_english.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60CF 6576 bytes
SHA-256: 4f617f1ca06bd9da72618e39c6ea8bbdff62b47b2e99a14c9a11ea4cad02cd01
font_01_sfnt_off000076f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76F1 5348 bytes
SHA-256: 3d4fe64e9b2327b6d43d06e67ff0b647f8ac40ee5b9efa1f67188139c2ba45aa
font_02_sfnt_off00008907.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8907 10876 bytes
SHA-256: cccbb71a1d7911e5b14c1075accdd057aad650948520993506dc882aa5330348

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