Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed898ffae1c6bc94…

MALICIOUS

PDF

42.3 KB Created: 2020-08-16 20:00:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 864ccbe4d7087eecd6b502ae268845bc SHA-1: 20adddf38fb46b3041846e66579c96effbd38a0b SHA-256: ed898ffae1c6bc943ff0377b421c953c79b2425a972512de5965f028191d6ccb
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with heuristics indicating a link farm for SEO manipulation. One of these links, 'https://ttraff.ru/pify?keyword=lagu+chrisye+kala+cinta+menggoda', is flagged as a known malicious redirector. The document body contains metadata and a URL, but no explicit malicious script or payload was detected. The primary attack vector appears to be luring users to malicious infrastructure through a deceptive link.

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.ru/pify?keyword=lagu+chrisye+kala+cinta+menggoda In PDF document text
    • http://fobupux.williamsburgrec.com/uploads/1/3/0/8/130874422/lobuwexegaf-lonulisixajut.pdfIn PDF document text
    • http://files.murdockcounseling.com/uploads/1/3/1/1/131164081/nukokujo-visumal-bibepigon-zuvanufugidak.pdfIn PDF document text
    • http://gatik.academyofhirudotherapy.org/uploads/1/3/2/6/132681556/7875468af0.pdfIn PDF document text
    • http://files.sterlingenterprisesllc.com/uploads/1/3/1/3/131378868/1246182.pdfIn PDF document text
    • http://files.grasshopper5k.com/uploads/1/3/2/6/132695325/sabafev_tosefefovan_pelitudifilo.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/1/0431/7567/4024/files/sejuxamudibumanulexupep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5649/5783/files/39152694797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5966/7363/files/40482338371.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3847/2357/files/chicago_bears_schedule_2020_printable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5827/4205/files/kobun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6821/9799/files/92160703667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13578549785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7147/9713/files/moving_templates_for_powerpoint_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4930/3720/files/67645391738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5879/8492/files/dezenewovezogadukub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7233/1675/files/lefapedareki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1044/9830/files/93885471712.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_off000066aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66AA 5460 bytes
SHA-256: b55e0352adc4d2bfa5c00d98e1d1c1366458558f02fb49aff132bce5c136c68d
font_01_sfnt_off00007916.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7916 10144 bytes
SHA-256: 4ca6995fc2b436900b7f3c96ef57639af3e0bd0ee166422387945e8482e2c37f

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