Malicious PDF — malware analysis report

Static analysis result for SHA-256 f30fde7b300d9ce6…

MALICIOUS

PDF

48.9 KB Created: 2020-09-07 00:48:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d5701fa3e5ad560a3f8aaf852b286e97 SHA-1: 6d2c3676ae57790548aafe420cc17f182c7ec63f SHA-256: f30fde7b300d9ce6c87c9a299d5a30c264cad80fc78aea6ba5ea63a9bdb09c87
202 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits a link farm pattern, suggesting an attempt to game search engines or distribute malicious links. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.me/wix?keyword=accelerated+stability+studies+ich+guidelines In PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/8acad3_f015ee0e4eab42b19a84cbff27c824c0.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/5ea4d5_81fd3efdad604cedb36c05a0834c5da5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/12dc78_d1e44af9cc204b24bf8891192645a236.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_2810cdd32c5249599da4891bfd40db03.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a382ee_ac7862c8458c42a0a9b5697fd2bc685d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/1479de_6f591a301ca44402afba718b4d5c607f.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_c73cfb7d4e44477f809a204966db6af4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/510691_ba5d4110d26e4496af6b0cbb665abd24.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/455f95_c56db8f915404c7382618509f9116e57.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/bf650e_64e1362916e84d6580cb2640521271bb.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/7e6083_8d65922279654300a6ca73b6114d7b37.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/bd7df1_60460a8a34f94624b6065b8bca72e387.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9a242c_bbb697bf55044b5c9403b7ff1da27600.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_f69efc7993d64722bb3375252cf638f6.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_aa86e560b5d84967a8f05fbf899b2897.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a1fb72_f1ddb13b55bc4ae7898ea3607bce9021.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/db1da1_30b6da044b8b433a9c05aabda0a913fa.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/64f9d2_d6c7f1389e794382b480cabfb1f52663.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000764e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x764E 1584 bytes
SHA-256: 5d53bb52bbad0c9c2a945120f3815651915eca8e4a0c41f7163aaf4756ad3149
font_01_sfnt_off00007e56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E56 5432 bytes
SHA-256: f05ffdd43a13a1f3476bf192d89fe18ddc4d75595837b92ede5eee36345c9831
font_02_sfnt_off000090cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90CF 10804 bytes
SHA-256: f53c65a4a4dc5d6a25056cb5ffacb8dc4128500bae6a827699a933f706beb9aa