Malicious PDF — malware analysis report

Static analysis result for SHA-256 6448918fa71cfb32…

MALICIOUS

PDF

47.9 KB Created: 2020-08-01 04:56:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b97fb978f3a841e7106e7d6c0fde7799 SHA-1: 6de2961a1df14b8e1c4c055d695e1fafde13043e SHA-256: 6448918fa71cfb32630b36cfe07b1864986db5fe027c3dd81855a7a9a5c631da
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple links to a redirector service (ttraff.cc) which is flagged as malicious. The document body also contains a direct link to a Shopify-hosted PDF, suggesting a link farm or phishing lure. The ML classifier strongly indicates maliciousness, and the presence of redirector links points towards a phishing or malware distribution attempt.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=an%252F+vrc-+90f In PDF document text
    • http://files.ihsanedu.com/uploads/1/3/2/6/132681488/tomibakegovaloji.pdfIn PDF document text
    • http://files.charmchi.co/uploads/1/3/0/7/130739011/767677.pdfIn PDF document text
    • http://files.roxburyvfd.org/uploads/1/3/1/1/131164023/a81b7.pdfIn PDF document text
    • http://files.northern-islander.com/uploads/1/3/0/7/130739012/1ba89b2f7abc0.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/1/0431/3173/2122/files/budevurugoluzuzawizejoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29883534071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1311/1961/files/dodowofodaduwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2201/4871/files/kojesiviweziwadolaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4712/4130/files/zadabofufafinis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mekokagowofulagifofid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3273/1038/files/57043239089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1335/7214/files/12860760535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7092/2652/files/jugijimesurafukudepudik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1560/1319/files/16085706092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8693/0329/files/45443465963.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 4

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_off00007e17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E17 4872 bytes
SHA-256: 0d25cb2c50d771a28cab5ac54bf767a390fd123e30a6d9fee622f1970769754a
font_01_sfnt_off00008edd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EDD 10644 bytes
SHA-256: 6480608dcc596529e5b258bf5af5ad169bb85c217a76d7599e0d247a8c5c3fcc

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