Malicious PDF — malware analysis report

Static analysis result for SHA-256 95033aff52e4baaf…

MALICIOUS

PDF

51.0 KB Created: 2020-08-06 19:51:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a99e1d4649d2bc6f184fccda5b86cb45 SHA-1: c4c581ff73dd567d07164efec9fe55eccebd3d6c SHA-256: 95033aff52e4baaf42e1b2c0eeaa80c3512e729e920531a4a8491cbe6367d325
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a phishing attempt to lure users to download other PDFs. The primary redirector URL is https://ttraff.cc/pify?keyword=princeton+review+cracking+the+sat+math+2+subject+test+pdf, which is associated with malicious redirector infrastructure. The ML classifier also strongly flagged this PDF as malicious.

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.cc/pify?keyword=princeton+review+cracking+the+sat+math+2+subject+test+pdf In PDF document text
    • http://files.mrsnow.org/uploads/1/3/1/4/131453902/kafasefejigufe.pdfIn PDF document text
    • http://files.davesclp.com/uploads/1/3/0/7/130775046/0c69ce0dce.pdfIn PDF document text
    • http://files.lilsproutpress.com/uploads/1/3/2/8/132815050/3647949.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9345/1159/files/48193357156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0840/0280/files/kudetidasuzikubenile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2068/9306/files/37665511917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3292/6616/files/88330095670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0515/7284/files/zovasagoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7080/7459/files/nitijisigedubojet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6179/6248/files/jenazolososetibusibulifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7252/0352/files/23287462788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/benubojebexoreloruva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1859/9075/files/mass_air_flow_sensor_seminar_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6367/0944/files/zazonaved.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5240/7704/files/kogusaruwuban.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C4 5984 bytes
SHA-256: aa3aa8c7711b081e2cb31b701024ca32989792ec6d38570e38f56efc946023a9
font_01_sfnt_off00007904.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7904 19740 bytes
SHA-256: 809a784381843f1d65321269a0b25c0dd237d0650937c75ba917c58bd9054f3c
font_02_sfnt_off0000ae79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE79 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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