Malicious PDF — malware analysis report

Static analysis result for SHA-256 368b7df4050487cb…

MALICIOUS

PDF

45.5 KB Created: 2020-08-11 16:46:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ffd21103bd29da5f0cc019cf707841c4 SHA-1: 846117910d52cf48faecba553555df2507f00ac9 SHA-256: 368b7df4050487cb6b945888b155452c3beee38c9d193bcf2b1a5bc7091c0d4f
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector link, indicating a phishing or scam attempt. The primary malicious URL is https://ttraff.ru/pify?keyword=bosquejos+para+predicar+a+ni%25C3%25B1os+cristianos+pdf, which likely leads to further malicious content. The document body itself contains garbled 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.ru/pify?keyword=bosquejos+para+predicar+a+ni%25C3%25B1os+cristianos+pdf In PDF document text
    • http://files.jenniferdehoffdesign.com/uploads/1/3/1/4/131438114/4722971.pdfIn PDF document text
    • http://files.govmation.net/uploads/1/3/1/1/131163777/5123569.pdfIn PDF document text
    • http://towilo.aplusephoto.com/uploads/1/3/1/4/131437508/zimukezen-kesuruje.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/1/0427/9782/6207/files/fumimije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/zavabulorazelosubusowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/nokufuretegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0928/6050/files/91273324425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/7731/5233/files/abstraction_encapsulation_inheritance_polymorphism_in_java_with_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1289/8461/files/sorivizivagojanitokigotuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7789/4293/files/totakesomutakudaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5082/6905/files/50924704894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9488/4000/files/31806682615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5852/8405/files/nutricion_enteral_y_parenteral_2020.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007026.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7026 5580 bytes
SHA-256: 306ff233912d6ff013c07ad53feb2c0b197c7f94aaa5b16f9b9992eb37b7b2a6
font_01_sfnt_off000082f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82F7 11092 bytes
SHA-256: 5434a3d9658484682a70cfbcc045d0e493bd48b96649e407f58debeddc8986d9

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