Malicious PDF — malware analysis report

Static analysis result for SHA-256 f88697f4ab3fbda0…

MALICIOUS

PDF

45.9 KB Created: 2020-07-31 15:29:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8e41356b3b041875d6bdb71c3970633b SHA-1: 78e53a99a9ffb1ea3b60dad88056767c68df5bc8 SHA-256: f88697f4ab3fbda06c433eee9deb9c4677940bceb648c9b8faa2b13bbc179aa2
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one heuristic specifically identifying it as a PDF link farm. The primary malicious URL, 'https://ttraff.ru/pify?keyword=manual+j+pdf', is flagged as a malicious redirector. The document body is heavily obfuscated, but the presence of numerous links suggests a lure to external malicious content.

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=manual+j+pdf In PDF document text
    • http://files.dogwooddoodlebugs.com/uploads/1/3/1/4/131406843/307724.pdfIn PDF document text
    • http://files.reconnect2self.com/uploads/1/3/0/9/130969573/koselegi_puxododuzumatod_xijefebofuwem_gepeguzi.pdfIn PDF document text
    • http://files.eletricat.com/uploads/1/3/0/8/130874676/vinotemamodavu.pdfIn PDF document text
    • http://files.livelovelaf.com/uploads/1/3/0/7/130740517/cf80b8351280b5.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/1/0430/0744/3103/files/didototoxoveza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0731/9974/files/38192116107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6258/3711/files/58249518708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9649/0655/files/26459342676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/62042090741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4486/4149/files/60439712408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8794/4096/files/55306893127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4416/7064/files/jevoguwenudifuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/69989766309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/faxijafijarutekilir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3481/files/77076076736.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 8

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_off00007863.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7863 4368 bytes
SHA-256: f1a8563507d33cbe25a6244060966c049cfb74025a336c9cf07fa90622de503b
font_01_sfnt_off00008742.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8742 10504 bytes
SHA-256: fa9f47e8a91f2180019183cb2078f91c75c1226873217e1f3143a5ee62bbd0a8

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