Malicious PDF — malware analysis report

Static analysis result for SHA-256 213c6e7f235e89e6…

MALICIOUS

PDF

41.6 KB Created: 2020-08-20 03:30:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b67766a95b4cbc627c2317f106996152 SHA-1: ad558016575a9c403928f10bd185c95b725e9505 SHA-256: 213c6e7f235e89e6eec59a058fcb60943560018ef6d49f3493c4d656558e6725
202 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link pointing to 'ttraff.com', which is flagged as malicious. It also exhibits characteristics of a PDF link farm, with numerous links to external PDFs, many hosted on Shopify. The presence of a 'download button' heuristic suggests a lure to trick the user into clicking the malicious link. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link within the document.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=movieswood+2019+tamil+movies In PDF document text
    • http://files.oregonceramicassociation.com/uploads/1/3/1/8/131871980/7379e.pdfIn PDF document text
    • http://mifot.thefellowshipsite.org/uploads/1/3/1/6/131606174/nunokul.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/13170590630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3971/7538/files/duziwafosikimoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1185/0918/files/48041075079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8749/5322/files/36165331543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8976/4245/files/livestock_farming_in_zambia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9679/3503/files/ladune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9899/4856/files/kunisexubulufevunufegexek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0631/0046/files/90181202030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3696/6055/files/63202891261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8227/6257/files/module_8_basic_aerodynamics_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1828/0357/files/59120933192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3935/9127/files/37492191147.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 1

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_off00006490.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6490 5512 bytes
SHA-256: f5a835414b73b64bc27610f86ecc9830d4bb4e6e29c4c74ce642216500febf4a
font_01_sfnt_off00007759.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7759 10120 bytes
SHA-256: 5dc569cbd3b8ed352671dd01941fc8505c8624842185d183f5521de415ccfeb7

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