Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7c8e7e5bb496273…

MALICIOUS

PDF

46.1 KB Created: 2020-08-27 15:10:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d943328fda127271e6f0223b94a60cf7 SHA-1: 728e66f19e466f1bfee509b5b07d7b86040d6277 SHA-256: f7c8e7e5bb496273fea0ba80746f75e7b3b58cb4fc95d2028b785e01f3029a48
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a "Skylanders trap team quick start guide". The document body and embedded link structures indicate a link farm designed to drive traffic to this malicious URL. The ML classifier also strongly flagged this PDF as malicious.

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=skylanders+trap+team+quick+start+guide+xbox+360 In PDF document text
    • http://files.totallylinkedin.com/uploads/1/3/0/7/130739239/nubiziwenetob.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/1/0430/4669/9165/files/40866417523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4584/6168/files/java_swing_tutorial_oracle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4032/6300/files/61631995231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9095/8749/files/xokoxinemujaserafod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/fetugoponuvibepufitafebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1624/1831/files/multibeast_high_sierra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0649/2823/files/android_camera_surfaceview_github.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8591/2477/files/8229768322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1327/4780/files/bakery_business_plan_nigeria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9541/7237/files/good_books_to_read_during_pregnancy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3275/4841/files/voderiket.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1533/1227/files/expanding_and_combining_sentences_worksheets.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 2

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_off00006fe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FE3 6456 bytes
SHA-256: 9421188b35f0b72d6283d4ac905e89f742acbb02b6c3e20b37b4ec7be34c8d3d
font_01_sfnt_off000085ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85AE 11248 bytes
SHA-256: f197f59672f3ddc7f2cfab375783920fc1aef7a78b91ca6df6ad411a889d4f57

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