Malicious PDF — malware analysis report

Static analysis result for SHA-256 68759f88b65ae1c3…

MALICIOUS

PDF

54.0 KB Created: 2020-09-16 21:06:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cb3d3508f9ed1312b79d69d988fa9071 SHA-1: 089d74a15f2161f503b91ef4b9312ffef12e77a4 SHA-256: 68759f88b65ae1c3059b15794c4abc58831f8c953aefd3e99b6588ec7e8e6b79
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, one of which, 'https://ttraff.link/wix?keyword=pogil+activities+for+ap+biology+immunity+answers', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other benign-looking PDF links, suggesting a lure to disguise malicious activity. The presence of a link farm and a redirector indicates an attempt to drive traffic to malicious infrastructure, likely for phishing or malware distribution.

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.link/wix?keyword=pogil+activities+for+ap+biology+immunity+answers In PDF document text
    • http://wazulebek.fairwaycommunity.com/uploads/1/3/0/7/130740607/8599972.pdfIn PDF document text
    • http://files.fretnotes.com/uploads/1/3/2/6/132695730/wirub.pdfIn PDF document text
    • http://dadajoje.grumpypuppybarkery.com/uploads/1/3/0/7/130776808/penumadexi.pdfIn PDF document text
    • http://files.wwvmc.net/uploads/1/3/2/6/132682640/48248945.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://ec1f89b8-4dcb-4a93-9196-745e7ce7ce90.filesusr.com/ugd/e80f4c_6620c76578ee45a9a481d17e790fe977.pdf?index=trueIn PDF document text
    • https://cdddc31a-72ae-4b00-a5cb-76c2cfdcecbb.filesusr.com/ugd/cfbfd2_44f4e8d1b377432fb070298bd46ca378.pdf?index=trueIn PDF document text
    • https://3d712c93-4c32-4d0d-9d6c-e773724b3008.filesusr.com/ugd/d38238_c6f0ca3d17884ec09dfbbb688b218531.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9417/2058/files/nitrogen_generator_atlas_copco.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9704/7445/files/peter_and_the_wolf_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1782/1605/files/pegoxujobizal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/9026/7300/files/40976662318.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7231/3749/files/lipid_peroxidation_mechanism.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 4

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_off00009541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9541 5728 bytes
SHA-256: a7f57519ade017f55c0a5f29c6f1a57836d1265742e6ab275d5444bb3c4870cf
font_01_sfnt_off0000a8d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8D0 10096 bytes
SHA-256: 380c9ba0d96f026cd170229c23c8a1ebfdf311f15121ac4fa51bcdf62cd04a4e

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