Malicious PDF — malware analysis report

Static analysis result for SHA-256 27f948db321a024a…

MALICIOUS

PDF

45.2 KB Created: 2020-08-30 10:43:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b40f9ba9717a0330baab79ea24455452 SHA-1: 71846f0acb2ba1d2a410758f6198b9d338d96ce9 SHA-256: 27f948db321a024ae2886d8d65417e298e5626156fd0fb6ad4b5de13a62c7cda
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a redirector to a known malicious domain. The document body, though obfuscated, contains the URL https://ttraff.cc/wix?keyword=ethanoic+acid+structure+diagram, which is flagged as a malicious redirector. This suggests the PDF is designed to lure users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted from this sample.

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/wix?keyword=ethanoic+acid+structure+diagram In 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/1/0434/1504/4252/files/sinedeludijit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3065/9750/files/fozaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7075/8816/files/67155522524.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/63d3ad_538a09a716a342458543c8f4130415ed.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_41934b2beee5442ca25610b90fd6c930.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_3d6c68ede7ab4d0985bd823f7434ac85.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_396a42f591524d1b83156bef42351dca.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/accd1f_ff8d209dacfa407ea621903c334d9b24.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b3bc21_87d0015f44cf4b4e90a708e9a51b1a40.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/16a96a_cc14a9c5f8fd4674bd284b4e2ea3a7f0.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/fd3290_6a2bf5818e1946e7804704d6872423d6.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_f1ecf845b4e84769b685920271feb4ac.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_f139695ee2484889a870e9f9d6725a17.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ea8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA8 5280 bytes
SHA-256: e626a4283fcfbc224d0a91bd1ed62a90f45c79e38d97a4b625d947abee68eb85
font_01_sfnt_off00007067.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7067 10108 bytes
SHA-256: 759c61627196ad247f77f92be511ffd027fe03015a09f2c170451995690e4788
font_02_sfnt_off0000932d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x932D 16100 bytes
SHA-256: dfdc6983d3c42b81f9741fa6cdceaab3e97c1fbda00e6274acf933e6ff911e94

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