Malicious PDF — malware analysis report

Static analysis result for SHA-256 d99b74b9fa13fb09…

MALICIOUS

PDF

119.4 KB Created: 2020-07-31 17:36:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d03f9a0a665335a2964d7544a4850b5 SHA-1: 432c98416bc34ea41fc1af8b5d8b5de8dcbfc7f2 SHA-256: d99b74b9fa13fb09eeee679eca3c4908bac90e1654cde030bbc0c57718d6c6c3
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains a reference to 'ff14 chocobo raising' and the malicious URL, suggesting a lure to entice users to click on the links. The primary function appears to be redirecting users to potentially harmful content.

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=ff14+chocobo+raising In PDF document text
    • http://files.heartpieces.net/uploads/1/3/1/3/131379749/3776242.pdfIn PDF document text
    • http://files.julianneensley.com/uploads/1/3/1/4/131437438/lusajude.pdfIn PDF document text
    • http://files.synergy-african.com/uploads/1/3/1/8/131855981/2599669.pdfIn PDF document text
    • http://files.bluenosewoodworks.com/uploads/1/3/2/8/132815961/somokirolurujewikusi.pdfIn PDF document text
    • http://files.aromathymebistro.com/uploads/1/3/2/7/132740482/7996566.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/1/0433/9014/0581/files/bijakanevisera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/69592443658.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8090/8951/files/8193570615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0933/5715/files/89446906918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3485/4051/files/70297002354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/9879705110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5187/4466/files/proyecto_de_grado_electronica_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7801/6406/files/wasuxor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4538/8442/files/50960423683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4189/0210/files/nazaruwurarifamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4062/8133/files/48269263431.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_off00019a60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19A60 5348 bytes
SHA-256: a344a8bee873974071a4ab2903fdf04e4c07aacbed4211d1d861a09bba19cb72
font_01_sfnt_off0001ac97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AC97 10524 bytes
SHA-256: 50a38a248b89ef38029a613a26304427b2698d21aeafb9c27216512cf924ce7e

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