Malicious PDF — malware analysis report

Static analysis result for SHA-256 15149e755a6e5cd0…

MALICIOUS

PDF

41.0 KB Created: 2020-08-17 09:00:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a69e711743126be7234d2b8ac0dab510 SHA-1: 362de091ab5b0981b4a9827ec89f1319007dc49d SHA-256: 15149e755a6e5cd0c9f348df601b35c6eb8275abe0fab079175d9854113778bd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting it is a worksheet, likely a lure. The ML classifier strongly indicates maliciousness, and the presence of a malicious redirector URL supports a phishing or malware distribution attack pattern.

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=independent+events+probability+worksheet+answers In PDF document text
    • http://baxuna.scottpruysers.com/uploads/1/3/0/8/130874493/6057321.pdfIn PDF document text
    • http://files.binghamtonrooted.org/uploads/1/3/1/0/131070895/xejepaloferexivi.pdfIn PDF document text
    • http://files.suzannegrantham.com/uploads/1/3/1/6/131636930/c15241b3c.pdfIn PDF document text
    • http://files.troop75.org/uploads/1/3/2/3/132303320/pelenolirapar-zupopok-zezobevol-xokivugovuk.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/1/0434/1039/1207/files/93049116819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/garawetuwugogexujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2610/1925/files/biomaterials_for_clinical_applications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9423/7589/files/99894395147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5932/2773/files/37684738251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9311/2472/files/bad_acronym_meme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2930/6263/files/41453243146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9002/5375/files/adding_subtracting_multiplying_and_dividing_fractions_worksheet_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4343/0305/files/alkane_alkene_alkyne_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6743/1320/files/79519291883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6876/7907/files/13532366180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5656/9249/files/zaxuwizaluku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8016/3232/files/madilazuxukexo.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_off0000614c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x614C 5444 bytes
SHA-256: 606046879af9521cdda493ac7ba87635dfe491536332577d14a59d6e35ca6989
font_01_sfnt_off000073d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73D1 10192 bytes
SHA-256: ba91f20397eba4d37cdeb30c9bfa29a344f5269970aefe4651ebec7406b8bf41

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