Malicious PDF — malware analysis report

Static analysis result for SHA-256 c795a73730d81070…

MALICIOUS

PDF

49.1 KB Created: 2020-10-25 19:26:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 922b22f65335534a58c9be457d8fdebb SHA-1: 3debd22f9cfa9ef3ecc103b28f52fe38e9d4e4bc SHA-256: c795a73730d81070cd6f1544534e487bd71c283d72ffa284272f04a09e105385
194 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.
  • 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/pify?keyword=blood+type+b+diet+chart+pdf In PDF document text
    • https://riragojefo.weebly.com/uploads/1/3/1/8/131857115/gonapasufenepowuwuli.pdfIn PDF document text
    • https://vafumigoku.weebly.com/uploads/1/3/1/3/131384305/8251036.pdfIn PDF document text
    • https://fomomeku.weebly.com/uploads/1/3/2/7/132712435/dopanefuruji_visisidunilozo_dibetufetagubam.pdfIn PDF document text
    • https://polabufasol.weebly.com/uploads/1/3/2/8/132814050/peniv.pdfIn PDF document text
    • https://xexovelez.weebly.com/uploads/1/3/0/8/130813416/2934674.pdfIn PDF document text
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/kebuxamijiti.pdfIn PDF document text
    • https://rivisoni.weebly.com/uploads/1/3/0/7/130739016/9895965.pdfIn PDF document text
    • https://korodaziso.weebly.com/uploads/1/3/0/7/130740443/legavujodigimofurox.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/761f6b34-e73d-4812-9693-c05aac55e31d/gakisurugubaxopuva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c837fb2-cf1b-482d-965d-11baa6e06447/2111694034.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b1cadf2-39fa-46ff-872b-239235a8fa95/12702765283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/1258/6176/files/thinking_with_mathematical_models_investigation_2_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/3857/5258/files/jiminekotomuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3546/7682/files/61904062684.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8675/0913/files/hopeless_land_apk_download_hack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7994/1278/files/97458381849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7359/4039/files/unaka_high_school_facebook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/4808/1834/files/picsart_full_premium_apk_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5417/7185/files/windwalker_monk_mythic_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/9919/8118/files/rome_2_guide_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/9331/0631/files/family_worksheet_year_1.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_off00007ff9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF9 5356 bytes
SHA-256: d29881d4ab2f84577ff7011ae6bee810aeb2b5a57a3c814f32872e6fc9fbfe64
font_01_sfnt_off0000922b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x922B 10772 bytes
SHA-256: 96a0f1fcccc8ceee19f33406e739e98e469e43231b701f8e2edf2cec26b1f42a

Open this report in the interactive analyzer, or submit your own file for analysis.