Malicious PDF — malware analysis report

Static analysis result for SHA-256 7caa812537816cf6…

MALICIOUS

PDF

74.0 KB Created: 2020-08-23 11:47:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8093bc165d5b81a2356b88bfd1f4e035 SHA-1: d606bdf7aa9c011c1fb1d1a2fe4b10d2184f165d SHA-256: 7caa812537816cf656df319fa3fcc5ddc9e7766847330a621a8c133453fb29e5
194 Risk Score

Malware Insights

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

This PDF document contains multiple links that redirect to known malicious infrastructure, specifically identified as a redirector for SEO link farming and phishing lures. The document body, though heavily obfuscated, contains a reference to the malicious URL, suggesting an attempt to trick users into visiting it. The presence of numerous PDF links further indicates a campaign 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.com/pify?keyword=perfect+match+taiwanese+drama In PDF document text
    • http://bavakepa.sharingdiversity.com/uploads/1/3/1/8/131856887/1728083.pdfIn PDF document text
    • http://jaxelel.phil-mann.com/uploads/1/3/1/6/131606758/961351.pdfIn PDF document text
    • http://gomadurum.moherlegal.com/uploads/1/3/0/8/130874104/batiweb-sukakazobisune-tetefa.pdfIn PDF document text
    • http://kozagu.capenewagenfarm.com/uploads/1/3/1/8/131856408/rojazuzo.pdfIn PDF document text
    • http://vepulajam.sawdustinmycoffee.com/uploads/1/3/1/3/131378950/sunebot.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/1/0428/9835/8432/files/ziwodukujaluladiludu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2992/1943/files/badidajetolez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7949/9940/files/60543709264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48695811849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/1756/8157/files/turewopetulogenoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8282/5371/files/96773165414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3259/8938/files/la_caccia_al_tesoro_camilleri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4375/0049/files/tigogaxinowuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7873/8335/files/duvetobotadajinaduwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5778/3718/files/answers_bible_curriculum_teacher_digital_resources.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nemevisofopanufu.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a665.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA665 15884 bytes
SHA-256: 75ce88fe3eff20a936ad42c3ee19c53fa8bb08ee7843334221874a41ddefcc65
font_01_sfnt_off0000d871.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD871 5320 bytes
SHA-256: 758f137c0e8a8299a3f10e0e50adef9ae135d7079bf73bbf2b28c1ea9bd54282
font_02_sfnt_off0000ea6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA6A 15452 bytes
SHA-256: ba7d95297b56b79a828b9295b063fe652601cb5eea0fe85100fe63bea04121bb