Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cef7c7dafb911a3…

MALICIOUS

PDF

41.4 KB Created: 2020-08-16 20:46:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ec6847fd7605329b9b93f59cfba8fb1 SHA-1: ec0c68eb453f37271ec1986d878b14cb1ac95ebe SHA-256: 2cef7c7dafb911a3510cb3ac2723a8eeb9aa46c7ad936e21958d96f7f82b4c79
194 Risk Score

Malware Insights

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

The PDF document was flagged as malicious due to a high number of embedded links, many of which point to a redirector service known to host malicious content. The document body contains text related to 'physical geography objective questions and answers pdf' and includes the malicious redirector URL, suggesting a lure to trick users into clicking on the links. The ML classifier also strongly indicated maliciousness.

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=physical+geography+objective+questions+and+answers+pdf In PDF document text
    • http://files.ardsleyeducationfoundation.org/uploads/1/3/0/8/130813913/bizazamakikaraju.pdfIn PDF document text
    • http://files.authenticallyyoubranding.com/uploads/1/3/2/7/132710565/vafoxe.pdfIn PDF document text
    • http://files.salidacanews.com/uploads/1/3/1/4/131406344/gonija.pdfIn PDF document text
    • http://files.teenpaddle.com/uploads/1/3/2/7/132710603/mutexi_gepixubav.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/1/0430/4211/1650/files/memaxowumijeminuji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8992/9116/files/gubavokobewovizutuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7519/0422/files/46282906077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/amature_meaning_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6925/1492/files/zukajup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5238/3904/files/definicion_de_enseanza_y_aprendizaje_segun_autores.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/vewebafugar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2949/4936/files/86963114555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/lubolepegojepusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2457/2835/files/self_assessment_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8211/3433/files/how_to_install_vpk_on_vita.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000522d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x522D 5896 bytes
SHA-256: 7233f735a5dd1c741a2660faed1cdaf5d6484e6296b5bd7f80ae8eac04b38713
font_01_sfnt_off0000663d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x663D 10624 bytes
SHA-256: b5fee94ee66e8d4c09a293ad056c367447dedfd2803f603448d88d8649c69277
font_02_sfnt_off00008a0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A0E 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

Open this report in the interactive analyzer, or submit your own file for analysis.