Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce5193989d2fc17f…

MALICIOUS

PDF

41.1 KB Created: 2020-08-22 03:19:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 48277201a91ec71b753f71bfcc0a0d71 SHA-1: dd53843bdcc0a42a045add04e70741a7aa1f7042 SHA-256: ce5193989d2fc17ff58b02ab7a26975e4634d8af63529e9e4fd9ba785846b89c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The primary malicious URL is https://ttraff.ru/pify?keyword=csusm+sociology+major+worksheet, which likely leads to further malicious content. The document body text, though partially corrupted, suggests a lure related to a worksheet, aligning with the redirector's keyword. No scripts were extracted, limiting the analysis of direct payload execution.

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=csusm+sociology+major+worksheet In PDF document text
    • http://files.tonguetiepractitionerinkent.com/uploads/1/3/1/4/131438389/6b432bb8f0605b7.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/1/0437/8384/8097/files/jonufomofabedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/8106/8697/files/busqueda_avanzada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8245/7000/files/94722141876.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6217/3602/files/fifejerasoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8022/9791/files/tapuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2128/7080/files/basic_proportionality_theorem_proof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1474/1413/files/72188372889.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0433/8073/files/tilofawuxisixaxekopifax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/36358709626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1948/2774/files/22572959986.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 1

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_off00005405.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5405 5348 bytes
SHA-256: 68bc2692755f9338d975c23c19766928156a76216f1069c31ef253ccb6a0ba54
font_01_sfnt_off0000664c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x664C 10336 bytes
SHA-256: 2ae82279dc2486f68a7ad699fed1f474a480fda7ad25d18853510296462fb487
font_02_sfnt_off000089b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89B0 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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