Malicious PDF — malware analysis report

Static analysis result for SHA-256 9279fc1037de8462…

MALICIOUS

PDF

42.0 KB Created: 2020-08-02 16:16:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e2fbc195ce9ecd44296cbfad72626a1 SHA-1: fa17ac3b856bd9d6e33cdb926f6bbf136608f9ec SHA-256: 9279fc1037de8462cfa9b28fec439b8cac7b003ef09dfc949f794458fc6c028b
194 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links to other PDF files, a technique often used for SEO poisoning or to distribute malicious content. One of the embedded links, 'https://ttraff.cc/pify?keyword=sugar+mountain+nc+weather', is known to redirect to malicious infrastructure. 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=sugar+mountain+nc+weather In PDF document text
    • http://files.elliotminoguestone.com/uploads/1/3/1/4/131483083/674357.pdfIn PDF document text
    • http://files.expataccounts.com/uploads/1/3/2/7/132740606/9605260.pdfIn PDF document text
    • http://files.dammaimorganllc.com/uploads/1/3/1/6/131636781/3401c86aa633.pdfIn PDF document text
    • http://files.flexypakofli.com/uploads/1/3/1/3/131398195/4747680.pdfIn PDF document text
    • http://files.mgle-germanschool.org/uploads/1/3/0/7/130740165/07b4b7e10b.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/1/0436/2482/4995/files/60703542870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4375/6954/files/disagepeturaloma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1179/1257/files/94615117225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vunumegosuvuvorewufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5038/5051/files/fafowodikenur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7298/7046/files/nunerizakotekitopodenuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0702/5060/files/64036261604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0649/2823/files/lazodasifofemodipunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1667/4713/files/raxobabufikatisugenepoxip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6935/7728/files/10368415243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1995/1513/files/10874797394.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_off000066f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66F9 5196 bytes
SHA-256: af81828019c1f8115d3625795e3388a95bf0669df469665e21542c47fff559b0
font_01_sfnt_off00007888.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7888 10396 bytes
SHA-256: ed3c7af539bb23ceb0920978160ef3aa844fe7cc6bbdc85e6f351cba6e4feabb

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