Malicious PDF — malware analysis report

Static analysis result for SHA-256 9319c70dc58d5a9d…

MALICIOUS

PDF

67.3 KB Created: 2020-08-11 15:06:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5f09c3eca6b6e5a9313494618e9e3635 SHA-1: 0aaac539ab302c1670b697a9673bd61dd9f7dc6d SHA-256: 9319c70dc58d5a9dfb1a153163422c9608e12937b0119c86caa5f7fcc32e6b27
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to mimic search results, directing users to a malicious redirector at 'ttraff.cc'. This tactic is commonly used to distribute malware or conduct phishing campaigns. The document body, though heavily obfuscated, contains references to the search query and the malicious URL, reinforcing the lure. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=bhagavad+gita+chapter+1+in+english+pdf In PDF document text
    • http://geviruk.lynncasebooks.com/uploads/1/3/1/3/131383483/zazuke.pdfIn PDF document text
    • http://files.rollingstonepens.com/uploads/1/3/1/4/131438025/mukolipejuzegifufeme.pdfIn PDF document text
    • http://jinosagob.cottongin116.com/uploads/1/3/2/8/132815002/gagawiduko_buwoxupunuba.pdfIn PDF document text
    • http://files.maloofroofing.com/uploads/1/3/1/6/131606222/3093938.pdfIn PDF document text
    • http://files.seasunland.com/uploads/1/3/1/6/131606844/5765b3f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9459/8047/files/31041317159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1335/6189/files/microsoft_natural_ergonomic_4000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6755/5481/files/vugufiwabokigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9191/0038/files/fatupajoduwonuluvuraniw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3507/4465/files/78944443008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4591/0678/files/phonics_syllabus_for_kindergarten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3624/5142/files/50960270321.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2190/9662/files/fuvuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8949/4177/files/zefujugeruwaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3146/1016/files/zelilofeverosowomobad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4641/1162/files/pagasiwulugoxiseg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2301/5841/files/votununifojegaxawunagu.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008f9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F9A 5580 bytes
SHA-256: 174124a1a6fd2e2fbaf34ff82d47d01e1831592d90b341c4e3d1804ffbd01496
font_01_sfnt_off0000a29c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA29C 16212 bytes
SHA-256: 32c6d701c02909944b6e65c44dae656eef2a17b5d3f529dbb20bb282759f5aee
font_02_sfnt_off0000d205.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD205 15036 bytes
SHA-256: 07115d0c2c234b89cd3494d3d69e1e457a5fb1668c65e9cbec0cae81020e5571