Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6610c465734877f…

MALICIOUS

PDF

49.6 KB Created: 2020-11-02 11:43:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 8ce48f98196aa302a2d22528c018a7e6 SHA-1: 1eac12f8722e66cb6e4e2805e024d5b1fed99460 SHA-256: c6610c465734877f49c043379b394473dfa42c3d33c6804c535c8cc9bf04cf38
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains heuristics indicating it is a malicious redirector and an advance-fee scam lure, presenting language related to lotteries, prizes, and courier delivery. It embeds a link to `https://cctraff.ru/123?keyword=2000+toyota+camry+manual+pdf`, which is flagged as a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded link strongly suggest a phishing or scam attempt, likely delivered as a spearphishing attachment.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://cctraff.ru/123?keyword=2000+toyota+camry+manual+pdf In PDF document text
    • https://jimigafekalese.weebly.com/uploads/1/3/1/4/131407537/mabepoze-nesezopimufus-woxixoluwel-suvul.pdfIn PDF document text
    • https://fopimakalegej.weebly.com/uploads/1/3/0/7/130738542/zapidopamo-gazufuwugex.pdfIn PDF document text
    • https://xabopefasuliwik.weebly.com/uploads/1/3/4/4/134445681/pamuziruko-wogela-zidetigusapuniv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385859/normal_5f8d6d1464888.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/1/0497/3513/9487/files/principles_of_pulse_electron_paramagnetic_resonance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8504/6960/files/68499567698.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bdf9dc3-1802-4abc-953e-739e87e707e1/iphone_6s_plus_cnet_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a58e26a3-3128-4257-97be-dcbfc091f0cc/mikawa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86b643a0-3774-4efc-99ff-3b9e991cf2f0/dorenopetizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0239/4786/files/twitter_news_bot_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/7853/6356/files/qemu_based_android_emulator.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee7e8ede-8e8a-40b2-b851-cb973bc9dfd3/bumarotadunox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c705201e-6ed3-4b06-9f40-fe4d2b86c9b1/demugiguruk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3412/3160/files/future_farmers_of_america_creed_in_1955.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83c2b713-05bf-4692-a2fe-3b4a764f551b/cold_steel_axe_sheath.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_off000082c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82C7 5404 bytes
SHA-256: dc348c1703c6c8d95fc45871f9c1bbfa6055745cebc69258954197031cd6e06a
font_01_sfnt_off0000951b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x951B 10668 bytes
SHA-256: 67f64c73eace92355d78417f5aeeb4804574fc96be0eaf60c75e9d58f4be55a2

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