Malicious PDF — malware analysis report

Static analysis result for SHA-256 1484d6828f2ce17f…

MALICIOUS

PDF

49.9 KB Created: 2020-08-01 11:36:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 200f0e775f694d55eb5ef435f7abfd7d SHA-1: 4e94909738b51291a11d77e47cc6a1b3a23b814d SHA-256: 1484d6828f2ce17f1d1c59e5740bbb0be6c584f70601708979d8b23b2f76ca61
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a mass of external links, including a redirector to 'https://ttraff.cc/pify?keyword=host+window+7', suggesting a phishing or malware distribution attempt. The ML classifier strongly indicated maliciousness, and the presence of numerous PDF links points to a link farm or SEO abuse for traffic redirection. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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=host+window+7 In PDF document text
    • http://files.modernhistoryseminars.com/uploads/1/3/0/7/130740624/68f69b674b9.pdfIn PDF document text
    • http://files.christopherluscombe.com/uploads/1/3/0/9/130969775/zupakatox_berudetivuxar_keteporaxuvupin_jivagub.pdfIn PDF document text
    • http://files.hireoptimize.com/uploads/1/3/1/4/131410662/rekekubidu-maguz-losuliwodowi.pdfIn PDF document text
    • http://files.brucenwaller.com/uploads/1/3/0/8/130874240/4112316.pdfIn PDF document text
    • http://files.jeffnickell.com/uploads/1/3/1/4/131406663/148596.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/1/0429/2801/3475/files/81423236982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6420/5216/files/24426353605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8366/9412/files/naridu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6346/0508/files/39758100345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5066/3062/files/wekoguxavesakas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1661/8145/files/wutetaguzojajawosupiti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8449/6550/files/dizugufusufowabavavesuxar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3849/9235/files/raputefigobagaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3165/7621/files/68300389489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/66979870203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6073/9752/files/kopex.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 8

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_off000087d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87D2 4616 bytes
SHA-256: 9c8fd8a1fa0e60aa64c94e33555174a49254814703bfe92aaf68055f9c3f6d8b
font_01_sfnt_off000097b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97B5 10364 bytes
SHA-256: 8e74733ee85b80d2dfcd0bb868265254655c85ac65ca111314416ec95df6c6e5

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