Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc475f8c5f9e0fbf…

MALICIOUS

PDF

43.7 KB Created: 2020-08-03 00:58:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 414623efd96a2c50186e4921f4957ef1 SHA-1: 5b4deee796b226a52610341cfc78cfa763938303 SHA-256: fc475f8c5f9e0fbfa565fbb23abf746eb569872c8e957f3941ceb10f2e2aa287
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, with one specifically pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=ap+style+book+pdf'. The heuristic 'SE_PAYMENT_REDIRECT_LURE' indicates the document's content is designed to trick users into believing there are new or changed payment instructions. This suggests a phishing or business email compromise attack. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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.ru/pify?keyword=ap+style+book+pdf In PDF document text
    • http://files.sophialove.org/uploads/1/3/1/0/131070588/97b616b5861ef7.pdfIn PDF document text
    • http://files.jarkoch.com/uploads/1/3/1/4/131406211/a22f228dd.pdfIn PDF document text
    • http://files.pyropetesfireworks.com/uploads/1/3/0/7/130738512/tutize.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3446/8774/files/8966386436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7505/2454/files/kuzanemepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4365/1735/files/99365648733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6341/0845/files/cuisinart_ice_cream_maker_recipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0239/5798/files/kenmore_elite_he3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7520/6294/files/fesuwuxolin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8945/9368/files/fatubenuzoralimegafav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2240/1185/files/99321134793.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3658/9730/files/lekuregezara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1584/5541/files/vomalogofawaxesisuzuzef.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

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B7 4660 bytes
SHA-256: b3f0467a52c51a91bd847a8698096536b7d6e5831260774f23d9c71f81a75d48
font_01_sfnt_off000070a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A5 10504 bytes
SHA-256: 52c913658e5d682a1bb4279fc475abfbc221657624f7a5a542467b0f7b60d4cd
font_02_sfnt_off0000945d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x945D 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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