Malicious PDF — malware analysis report

Static analysis result for SHA-256 193e16e4f6ca09f8…

MALICIOUS

PDF

41.3 KB Created: 2020-07-28 14:49:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 92337f0e3247e053023f34517c279825 SHA-1: 018c094e3e54f30a2b5e104794e6bebf75882072 SHA-256: 193e16e4f6ca09f801d8aafceae9a2ebb07820b5ec9bf572d91462daac6224c1
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains heuristics indicating it is a malicious redirector and part of an SEO link farm, specifically designed to lure users with a 'transfer apple game center to android' theme. The embedded URL points to a known malicious redirector, suggesting the document's primary purpose is to lead the user to a malicious site. The ML classifier strongly supports the malicious nature of this PDF.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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=transfer+apple+game+center+to+android In PDF document text
    • http://files.bbqpete.com/uploads/1/3/1/6/131637853/gezaturol.pdfIn PDF document text
    • http://files.annshafer.com/uploads/1/3/2/7/132710491/zowij.pdfIn PDF document text
    • http://files.markcraiggallery.com/uploads/1/3/0/8/130874587/9211409.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/1/0436/2685/6610/files/sisidojinufowakotop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2505/5389/files/71939797949.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5891/3689/files/ketijefebab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3244/4056/files/radivuzizeburabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5763/5735/files/99374011060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6564/7012/files/61954977229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2491/6388/files/toxowadabijidutubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/77969382062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sejil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1889/6038/files/5786537764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mipin.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_off000064d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D9 5212 bytes
SHA-256: 7ceacdc26dedb82458bb6cdf7699ceebca4ec33ebf64b7238e5606eb52070914
font_01_sfnt_off0000766d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x766D 9800 bytes
SHA-256: 071a49874bd7cf1203690abace4a110ac6ceb426489ee4163852c586b9140f39

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