Malicious PDF — malware analysis report

Static analysis result for SHA-256 26f7745a5af1ebaa…

MALICIOUS

PDF

40.4 KB Created: 2020-08-24 03:41:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f690bae06eb303952c227f16ce773c9 SHA-1: d8426e1dea3acd14dcb574c78d712724fe969488 SHA-256: 26f7745a5af1ebaa4e25ea9c4897d9da5ab035d869512e3b1e9ea1088e74c40e
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=cacfp+training+worksheets'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which are hosted on potentially compromised Shopify domains. The document body, though heavily obfuscated, contains the same malicious URL and benign-looking PDF filenames, suggesting a lure to trick users into clicking the malicious link. No scripts were extracted from this sample.

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=cacfp+training+worksheets In PDF document text
    • http://xumuje.eyeslikemineinc.org/uploads/1/3/1/3/131383839/galoju.pdfIn PDF document text
    • http://xunuwis.simplified-networking.com/uploads/1/3/1/1/131164132/gurokajokivativ.pdfIn PDF document text
    • http://files.theapsara.com/uploads/1/3/1/4/131407148/4143819.pdfIn PDF document text
    • http://files.dianneforsythphotography.com/uploads/1/3/1/6/131606482/87035.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/1/0433/4593/6535/files/bluestone_alley_piano_sheet_with_letters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4517/5971/files/nuserarezezupiwizozosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3192/8740/files/16202576815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6397/4805/files/birimot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8548/6485/files/29699806434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7919/7081/files/wevimeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6265/6152/files/8732579981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9652/9313/files/prevalensi_penyakit_jantung_koroner_menurut_who_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9014/0581/files/7643057618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2791/4152/files/bunker_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9681/0396/files/java_8_offline_installer_32_bit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2853/6744/files/27850217997.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_off00006096.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6096 5304 bytes
SHA-256: 78bd47af70ff8bcec54099a11eabf11f8651cbbc2a7079c99806ca4bce9252ce
font_01_sfnt_off000072b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72B8 9956 bytes
SHA-256: da4d4e43ad19b17fff8dfb4874e4ecf6ff2cfd2e6d639bf4f1e527068f02416c

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