Malicious PDF — malware analysis report

Static analysis result for SHA-256 38ad83d715502930…

MALICIOUS

PDF

39.9 KB Created: 2020-08-02 20:16:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c76483b80380e247127c96cfc3a1c235 SHA-1: 33ab287aaebb9999e5850135f1fdda892ea67aa2 SHA-256: 38ad83d7155029306bd7849d118e3f93f42714698a08f1dca45526ab7a8e84d8
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The embedded URL points to 'ttraff.com', a known malicious redirector, which is likely intended to lead the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains references to educational material, suggesting a lure to entice clicks.

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.com/pify?keyword=pearson+algebra+1+common+core+pdf In PDF document text
    • http://files.altitudebusinesssolutions.com.au/uploads/1/3/0/7/130738871/ramakolonolawubabogo.pdfIn PDF document text
    • http://files.rockcreekbaptist.net/uploads/1/3/2/8/132816195/09b96c.pdfIn PDF document text
    • http://files.medinasbridal.com/uploads/1/3/1/3/131397996/8793581.pdfIn PDF document text
    • http://files.kemslashes.com/uploads/1/3/2/6/132682899/kuzadifa-tawususipirojor.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/1/0431/5460/4198/files/49635072268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9925/0081/files/vipatodutos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3681/9104/files/futiwapajovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2213/9041/files/sotevegojazabaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8657/7828/files/32216621850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3497/6157/files/3827175875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4183/9511/files/76434254442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/basugogigarerebid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8003/1137/files/65836178831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/fuvenekalarobir.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_off000053e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53E1 5668 bytes
SHA-256: 35d8820aae1210909c2ce96da239d3ef1bd79e9b76e525fa6a17e2ac410b084a
font_01_sfnt_off00006713.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6713 13468 bytes
SHA-256: 5da1825f3b7f1c7d51229a90d4227748adf8ee735e33a05986cbe05d6f25c425

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