Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d92495003d855e0…

MALICIOUS

PDF

43.3 KB Created: 2020-08-16 00:50:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 18108bf616498ecf2ee433e4ec97cb9b SHA-1: 053e0f350f85bdb640a09bb5c59f4945dc895c25 SHA-256: 3d92495003d855e06deda929568ed2c25c5969418a762f642b60a09c6c702b08
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to its extensive use of external links, forming a link farm. One of these links, 'https://ttraff.ru/pify?keyword=beta+house+movie', points to a known malicious redirector. The document body contains obfuscated text and embedded URLs, suggesting an attempt to lure users to malicious sites. The presence of a link farm and a malicious redirector indicates a likely phishing or malware distribution campaign.

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=beta+house+movie In PDF document text
    • http://rikuse.reclaimingbiblicalchristianity.com/uploads/1/3/1/6/131606174/5437211.pdfIn PDF document text
    • http://dinizexir.danielarifriedman.com/uploads/1/3/1/4/131437361/5528659.pdfIn PDF document text
    • http://files.localbeetmealprep.com/uploads/1/3/1/4/131452841/sidulupemotikik.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/1/0435/6636/6869/files/bovop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9434/3829/files/monefax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3909/6986/files/american_history_student_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2843/8440/files/84646681847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0649/2823/files/zoganitemat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1190/7488/files/woxurujusupototonozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4767/3253/files/namemazuganifatiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7624/7971/files/22950458246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3748/9309/files/34344056771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1690/3062/files/fepotezikiweluwisab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3748/1365/files/nowovonubi.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 5

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_off00006cd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD1 4904 bytes
SHA-256: a716ab54ca9ec977ae485fd37cf0809640d37f0c8d4ffdcedaba8d349c2c6d9e
font_01_sfnt_off00007d68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D68 10188 bytes
SHA-256: 1055106f3702d7d9b36dbea04f90a396a914dbe6407bb36f2581ac4252307563

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