Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f644c040440ab47…

MALICIOUS

PDF

45.2 KB Created: 2020-08-22 18:03:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4fd167ea0eb4be18d3c90283fb08cc5a SHA-1: 2436235ea17957698cd6f6e674bcfb5b86eeef07 SHA-256: 7f644c040440ab476baa7940f497fc305fde3bab832c2cb2c7c5779d0ec1b4cb
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to a redirector service known for malicious activity. The document body text and embedded links suggest a lure to download or view content, likely a phishing attempt or to lead users to malicious websites. The presence of a redirector URL and a large number of external links indicates a coordinated effort to distribute malicious content.

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=2019+daily+calendar+template+excel In PDF document text
    • http://files.nancywijnants.com/uploads/1/3/1/8/131857758/2361119.pdfIn PDF document text
    • http://files.janiferwheeler.com/uploads/1/3/0/7/130775934/rijitiseb_vukijajaj.pdfIn PDF document text
    • http://files.crookeddoorstudio.net/uploads/1/3/1/3/131379591/b5173181.pdfIn PDF document text
    • http://vikibik.spiritualgiftsministries.org/uploads/1/3/0/9/130969959/7037625.pdfIn PDF document text
    • http://fekis.royaleliterental.com/uploads/1/3/0/8/130874233/7215935.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/1/0428/3983/4780/files/49504921129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9322/0766/files/goniferunonako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5804/4827/files/xosetefujagizovan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7335/3366/files/metal_gear_solid_5_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7926/2623/files/ribofoxezavudutafelud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/xineful.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7618/1404/files/bncc_ensino_fundamental_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1211/8952/files/masha_babko_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5799/4138/files/80388289942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9588/3925/files/73391803391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5523/4710/files/wukonapokaximizifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7143/9001/files/wukizososafusew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3729/4741/files/napukozibaxotijuwozud.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_off0000718d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x718D 5600 bytes
SHA-256: 4088fede7fb8e3ed919095dd7b77483b487b1738d9a238c24bc3a9e668e3408f
font_01_sfnt_off00008480.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8480 10364 bytes
SHA-256: 0ebc650d11d9c42e02207391cf4cf8b268974942be1bf12938432facc330b34c

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