Malicious PDF — malware analysis report

Static analysis result for SHA-256 faeda682468e4370…

MALICIOUS

PDF

63.4 KB Created: 2020-10-29 05:40:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 6ddf0b194f14e575f4c86ea9cc431f78 SHA-1: d7659b6769115a0ee9b8f59b12613b826c121d46 SHA-256: faeda682468e43707216eab2d417c2cb1f106ac37c9b9d6764cef1eb456c0653
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://gettraff.ru/aws?keyword=lich+king+guide+hearthstone+2020 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4403418/normal_5f944321e5fb3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417325/normal_5f963990d502a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406213/normal_5f967f2be9b48.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418013/normal_5f99e6214d781.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387819/normal_5f911a6529f9f.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/felasorarabipis/xutaniratufonokiniw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2406/3392/files/54799293332.pdfIn PDF document text
    • https://s3.amazonaws.com/tezofuretejom/public_partnership_mo_phone_number.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7c4d21f-37f3-4ef1-8438-7e65421bb214/timelimakix.pdfIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/nodiwavadamapedu.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/atualidades_concurso_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2499/8819/files/fannie_mae_guidelines_on_tip_income.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69b5e759-9baf-42f9-8459-78b6bad172b2/rimworld_best_guns.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/422d60ca-6716-407e-9587-fa50fa254740/xiwuzabivexopewepu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e56387d-0f4b-4680-928e-3dd17309bbda/mujilufopizawopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/0623/2229/files/82808397302.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/8304/5293/files/google_adsense_apk_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/9096/6207/files/compressor_surge_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/0659/6514/files/fasewokunuzijewe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3693f3c4-c08e-4fed-b678-3a25f6bfbae9/metric_mania_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/1673/0799/files/tedom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/3742/8382/files/gavegarug.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_off0000b877.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB877 5448 bytes
SHA-256: 63d572f254e00fa433b523176c3c0cf0b93d90fea1acab60d8cb3485fe3ddba3
font_01_sfnt_off0000cafa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAFA 10812 bytes
SHA-256: 1546f9beab856d126d1f43cbb1b434796f896fb9d7cd762f088ad308a01cdfb1