Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd803fdf75230279…

MALICIOUS

PDF

72.2 KB Created: 2020-08-02 20:54:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a5714b96b69838874c7942572d703cd8 SHA-1: 8241a6f30b1918a4faa8805849649893944da5ba SHA-256: cd803fdf75230279bbf835387fcae5c386e4c134186160fce4462a872723252f
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK pointing to 'https://ttraff.cc/pify?keyword=musings+of+a+cigarette+smoking+man'. This indicates a likely phishing or malware delivery attempt. The PDF_SEO_LINK_FARM heuristic further suggests the document is designed to host a large number of external links, potentially to distribute malicious content or engage in SEO manipulation for malicious purposes. The ML_NYX_PDF_MALICIOUS classifier also strongly supports the malicious nature of the file.

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=musings+of+a+cigarette+smoking+man In PDF document text
    • http://files.ucpgreatchefs.com/uploads/1/3/2/6/132682976/nunavenerogopafab.pdfIn PDF document text
    • http://files.computerscpr.com/uploads/1/3/0/7/130739227/fafanifabemini.pdfIn PDF document text
    • http://sorigepu.hldinspections.com/uploads/1/3/1/4/131483371/550525d1521c3e7.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/1/0428/9835/8432/files/646255477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2249/0528/files/84406432570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fezusagofetivori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4334/0956/files/nujuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6127/9894/files/18508338642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/roferexuligari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jedufejaselikaruratemop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6880/7586/files/rufodaxabikejefemusurimak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31082235151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9994/7169/files/datadekozamapedogipevawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3086/1208/files/android_scrolling_activity.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/sikivuvaweri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7519/7346/files/65689846758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vonabubabosutogoxofe.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_off0000de02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE02 5240 bytes
SHA-256: 859207e1dd0e2ec029be9178805dd63efe0038a8fe5e56f8383fc3899862a6e7
font_01_sfnt_off0000efd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFD4 10476 bytes
SHA-256: 3400f43d0fb83c4a1c2915356f867e053a0939f4f8ee14b0534b3271742c58f7

Open this report in the interactive analyzer, or submit your own file for analysis.