Malicious PDF — malware analysis report

Static analysis result for SHA-256 99493680fcf0a86c…

MALICIOUS

PDF

43.4 KB Created: 2020-07-31 23:12:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fe23d0dfda76382b76a9aa606913c06e SHA-1: 0906382c1224f37329532eb55006060b3018c625 SHA-256: 99493680fcf0a86c9edec885cecf4290ba592e861799c9257ef883d790b7fb90
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, 'https://ttraff.cc/pify?keyword=desktop+weather+for+windows+7', is identified as a malicious redirector. The document body, though partially corrupted, suggests a lure related to 'Desktop weather for windows 7', indicating a social engineering tactic to entice users to click the malicious link.

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.cc/pify?keyword=desktop+weather+for+windows+7 In PDF document text
    • http://files.medicinewheelrecovery.org/uploads/1/3/0/8/130814343/najuvavob.pdfIn PDF document text
    • http://files.306partyrentals.com/uploads/1/3/1/4/131454116/6019467.pdfIn PDF document text
    • http://files.cavalierclubvictoria.com/uploads/1/3/0/7/130739287/8345171.pdfIn PDF document text
    • http://files.kashimondojo.com/uploads/1/3/2/7/132740399/77f018e3300c34.pdfIn PDF document text
    • http://files.octobermoon.shop/uploads/1/3/1/4/131438490/tuzidavidumenipi.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/1/0431/1403/7397/files/356336494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4478/8634/files/70983920362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7641/8713/files/vevorolilumixarufanukum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6396/7906/files/makobesobutetanujare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5697/9351/files/turefamusixozekekozev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5840/5280/files/gibanuzitizabumidejow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5561128363.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1583/0695/files/darejetofetafomod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6099/9830/files/nafitasivamoxanuxoworekar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6343/5679/files/tomixusuvat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6938/2557/files/51780804964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0760/5918/files/88821103248.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 8

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_off000069e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69E4 5332 bytes
SHA-256: a37b436faadebf04c2a4df870a20da4e2378ab0664268cef5dfb342610baf4fa
font_01_sfnt_off00007c26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C26 10636 bytes
SHA-256: b00c79bd81b7101e45aed7dbe347a22434ca91c299f7aaf22018c9cef78d95d9

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