Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9b7a32d746e4c74…

MALICIOUS

PDF

45.6 KB Created: 2020-08-03 07:13:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1c34ef31b032393514145642955b952a SHA-1: e34a8a4f292f2e6b0f12b3f2a60e4b475b42f5cb SHA-256: d9b7a32d746e4c749e9fdfcd7ea14339290e8db160366a8d2007d7762f682c6f
194 Risk Score

Malware Insights

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

The PDF document contains embedded links that lead to a redirector service. The primary link, 'https://ttraff.cc/pify?keyword=bikini+body+guide+workouts+pdf', is flagged as malicious. The document body text and metadata suggest a lure related to fitness guides, aiming to trick users into clicking the malicious link. The ML classifier strongly supports the malicious nature of this PDF.

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=bikini+body+guide+workouts+pdf In PDF document text
    • http://sowuji.warrencojrfirefighters.com/uploads/1/3/1/4/131411896/ba944cd841db9.pdfIn PDF document text
    • http://files.newhope4children.org/uploads/1/3/1/4/131407892/20a99c5.pdfIn PDF document text
    • http://files.wectp.org/uploads/1/3/0/7/130775707/zufomif.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/1/0430/0197/0837/files/ganax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2040/9256/files/giwuvulapeberiselo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1016/9759/files/kathem_al_saher.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0426/4601/files/diwewududiradipox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5345/6289/files/vupel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2313/7957/files/73792732862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5743/8101/files/12510009689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7618/8315/files/65909480869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3137/9618/files/43267936332.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off00005ddc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DDC 5416 bytes
SHA-256: c73cf83a0602518af7266a0d6bbafd4ed4f2623c8cd7ede93cd2a42e60feef18
font_01_sfnt_off00007078.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7078 10412 bytes
SHA-256: 9ccabea09c3de889dc1c7a8d337303723a082805cab272bfcab2c0da9ed04fe0
font_02_sfnt_off0000943d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x943D 16320 bytes
SHA-256: 844cb084336e143bceaacd7de948136837ca80d958068760f33a7e0e858d23f1

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