Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1fdd63630c70458…

MALICIOUS

PDF

34.0 KB Created: 2020-07-31 23:22:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 330427060baffee0b4fd30599a8d8749 SHA-1: e3ff017a189709333f6fa39be55d2cb7858f0223 SHA-256: a1fdd63630c70458e7c7e5b5dc171d5b076a7b47296daaa5bead5ef35f8ed303
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to `https://ttraff.ru/pify?keyword=royal+210dx+cash+register+manual`. Additionally, it features a PDF link farm with numerous external links, many hosted on Shopify, suggesting an attempt to distribute content or traffic. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the embedded links and redirector are sufficient indicators of malicious intent.

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.ru/pify?keyword=royal+210dx+cash+register+manual In PDF document text
    • http://files.shopdovetail.com/uploads/1/3/1/4/131438137/latofaj_xajine.pdfIn PDF document text
    • http://files.photocolorongraphics.org/uploads/1/3/1/6/131606807/zodulekavemojewi.pdfIn PDF document text
    • http://files.slateconstellations.com/uploads/1/3/0/9/130969543/kojufokugaraw.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/1/0433/3161/6918/files/metolujolakipilubovosazur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4202/9215/files/97579532176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9575/2864/files/22730657486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3410/7286/files/patutubepozopusila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3259/2040/files/rujobevasomipidenak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8248/0806/files/tisimusin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7182/3262/files/11745786056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6887/5157/files/kitupuzasufujimasor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0640/2453/files/28353996057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/99748845866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2261/3655/files/36781646201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5771/7143/files/noviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2073/7950/files/vovufubetowexil.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
🗂 Part of campaign: photocolorongraphics.org 6 samples

Related samples 6

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004760.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4760 5856 bytes
SHA-256: 5cd716ac478f2cda488c75ad4de187c37e19ca4846f2e09e1ec0801bf37d510d
font_01_sfnt_off00005b36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B36 9484 bytes
SHA-256: 4d715464163ea68df4fdf08b7f11f98ae14e5d4ab488b6bf849a9173c8475d6d

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