Malicious PDF — malware analysis report

Static analysis result for SHA-256 9db98917d7ea087b…

MALICIOUS

PDF

42.9 KB Created: 2020-08-05 17:33:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 2148f62c5cf5ceab6dcfb0e0e48e1f79 SHA-1: f948cd941466a6f57feaeba6d5cabdf51d7326d1 SHA-256: 9db98917d7ea087b61c8896a5c30174a9d596a0f2a6946bf126ef67ddd62c352
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm designed to redirect users to malicious content, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK pointing to ttraff.cc. The document body, though heavily obfuscated, contains the same lure text and URLs, suggesting a coordinated effort to drive traffic to potentially harmful sites. The ML classifier also strongly indicated maliciousness.

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=diabetic+neuropathy+definition+pdf In PDF document text
    • http://files.dentistrathmines.com/uploads/1/3/0/7/130739570/bb7c8e10143d32.pdfIn PDF document text
    • http://lenidum.shimfarmtour.com/uploads/1/3/1/0/131069899/1421556.pdfIn PDF document text
    • http://zotugelir.sgbc.org.ng/uploads/1/3/1/4/131454106/9616a236.pdfIn PDF document text
    • http://files.jamesdaviespoetry.com/uploads/1/3/0/7/130776776/1b20bb9d8603.pdfIn PDF document text
    • http://files.kbgamesllc.com/uploads/1/3/2/7/132740584/zekunizavixejofum.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/581871399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/67331216746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2218/6653/files/mamotedamagusebawog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8460/1758/files/rafudoxadupozef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9515/5105/files/69129143282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2492/5347/files/tevanujofixosobijopafur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8558/6849/files/69859615652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6244/2661/files/kuzexosijiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3187/2166/files/24372002534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2385/7824/files/puzasuduniwanesonibofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4795/2292/files/dipugosemarebepugelipodiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0637/7633/files/57118683896.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 7

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_off00006979.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6979 5272 bytes
SHA-256: a0d8290b967cb0cb163ed16c040eb6b7a14d2a7247ae64569b0f43f3cfcc6706
font_01_sfnt_off00007b6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B6B 10404 bytes
SHA-256: fe84c8db9e8b76bfcd3dac9fee35b9b4f4da495375a7de50fd5a7aed2a844984

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