Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ce131eb1cbf9626…

MALICIOUS

PDF

55.7 KB Created: 2020-07-28 18:26:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 67bdd0e86d270b23c66f9724ddd0102f SHA-1: 3b3d17a48d02ae83e16e8adffd770d8f8eef89f9 SHA-256: 7ce131eb1cbf9626f8cbb73f80f69ac238a8722ff080ffea06f61bb1359fb66d
274 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1204.002 Malicious Link

This PDF file contains multiple heuristics indicating malicious intent, including links to known redirector infrastructure and a link farm. The document body, though heavily obfuscated, suggests a lure related to file uploads. Crucially, the heuristics indicate that the document attempts to trick users into executing commands via the clipboard and suggests password protection for archives, common tactics for delivering second-stage payloads. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/pify?keyword=angular+2+file+upload+multipart%252F+form-+data In PDF document text
    • http://files.dodgecityas.com/uploads/1/3/1/3/131378990/lofiresefoziwana.pdfIn PDF document text
    • http://files.arlingtonmsband.com/uploads/1/3/1/6/131606087/ddee7.pdfIn PDF document text
    • http://files.esthermcohen.com/uploads/1/3/0/9/130969761/bodikiponakozi.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/1/0432/5172/8546/files/sudunorisez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0165/1101/files/jolonegidinipisisebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0469/0581/files/zesinopova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1507/6002/files/debonanutorovimakisavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3236/0613/files/12562892817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3469/8147/files/sufovufalizag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6955/5356/files/8049436562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1557/5464/files/dadijotilobaxuzakuxefora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/joxes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/zawopipojak.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_off00009c55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C55 5256 bytes
SHA-256: 6a3b59af38695802ba7bd098dfc70413d0685c37c736e356fe8c63bc98ab3631
font_01_sfnt_off0000ae26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE26 10376 bytes
SHA-256: a8053ac50347b00d7f2a9226c95c71a45132cb5e8d05dc18102bbba2ddaa7f5d

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