Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a64368e09e1b56e…

MALICIOUS

PDF

61.5 KB Created: 2020-08-11 04:44:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7966a7b3c75223b2345257f0cf9a609b SHA-1: 71b70aa0a6c08cf4c06b075461e3479d4e9a911a SHA-256: 9a64368e09e1b56ed5d33e87c8bc9c18d812132794c29f0c551b66e558eb48e1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous links, with a critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=akutagawa+short+stories+pdf', which is likely intended to deceive the user into downloading a malicious file. The presence of many external PDF links suggests a link farm or SEO poisoning tactic to increase visibility and lure victims.

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=akutagawa+short+stories+pdf In PDF document text
    • http://files.mayaartcenter.com/uploads/1/3/1/1/131163898/nowebez.pdfIn PDF document text
    • http://files.anthonybeastmode.com/uploads/1/3/0/7/130775977/nuxiponilutudimelaj.pdfIn PDF document text
    • http://visemix.majesticrc.us/uploads/1/3/0/8/130813528/silarefuzizig.pdfIn PDF document text
    • http://files.dscottcurryatty.com/uploads/1/3/1/4/131407802/xodobu.pdfIn PDF document text
    • http://files.mrsmeltabargersclass.com/uploads/1/3/0/7/130776509/4983897.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/1/0433/8227/6257/files/2253467786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7530/3592/files/barinilerojuxeke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4146/5244/files/bewonelepebikenim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2314/6909/files/66054780624.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4818/0634/files/baxijabedozureruxexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/named_ranges_google_sheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38659434623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3248/5793/files/fojipinina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/91428743782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1537/1932/files/dovakalujujonufuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/formasi_cpns_papua_barat.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 6

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_off0000b3c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3C2 5416 bytes
SHA-256: 07fc56d1714a85084beec0c825a4f697a4ab56f0de0c9f1d3ff19212043ae826
font_01_sfnt_off0000c63a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC63A 10212 bytes
SHA-256: b7cc5ff5175c704fe92add5853b085a79919051655d7bd65aa61b1bccd64d8dd

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