Malicious PDF — malware analysis report

Static analysis result for SHA-256 c252e78b55575b15…

MALICIOUS

PDF

42.0 KB Created: 2020-08-14 07:08:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ea920fcdcd7c40bb7e90c9978106641 SHA-1: 65f80f1ade7d4dc24e479d8b1ac2e1ab77a68c0a SHA-256: c252e78b55575b1532ffc3c2b202942c4d5982c6a78bc90ebd7e233735acee12
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, directing users to 'https://ttraff.cc/wb?keyword=monsanto%20papers%20pdf'. Additionally, it features a PDF link farm with numerous external links, many hosted on cdn.shopify.com, suggesting an attempt to distribute malicious content or engage in SEO manipulation for phishing. The document body contains obfuscated text and embedded URLs, reinforcing the malicious intent.

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/wb?keyword=monsanto%20papers%20pdf In PDF document text
    • http://files.libbiessimplejoys.com/uploads/1/3/1/4/131406086/70042e9c7b.pdfIn PDF document text
    • http://files.educatorsforsocialjustice.org/uploads/1/3/1/6/131606890/kifiwip.pdfIn PDF document text
    • http://jidaget.thebrmichaels.co.nz/uploads/1/3/2/3/132302956/45260134.pdfIn PDF document text
    • http://livor.emergingpaintinginvitational.com/uploads/1/3/1/4/131437044/futemovipemowavuta.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/1/0431/9988/9569/files/pikodibobomivumekonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4417/5013/files/fubusox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0645/1094/files/runulosojolas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6200/9760/files/derajudejel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5180/3033/files/domegexavemiratesex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9173/8277/files/les_afficheurs_7_segments.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6656/4507/files/30612885370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9724/2280/files/namebetiduvisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4933/7507/files/15528808004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5557/1356/files/24651692294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3077/2901/files/vabisofatirobume.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 7

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_off00006741.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6741 5008 bytes
SHA-256: 7b973751aeeafdd1e104e96396853e602f63ab3b7699b2c47d9837a9a79acbb8
font_01_sfnt_off00007863.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7863 10244 bytes
SHA-256: 14744ea314585c475c44dd9d0231b478307e13cb922cd5da59fb39a7352928ac

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