Malicious PDF — malware analysis report

Static analysis result for SHA-256 176ed1130be8748b…

MALICIOUS

PDF

45.0 KB Created: 2020-09-12 12:47:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ff6b4cf6906d5989556cb847a80c173f SHA-1: a6809c5c4252c9f53db199c9e25ac2f886d36637 SHA-256: 176ed1130be8748b51e12ddef5cceae6d82244a8853ff535599fc561df7827ef
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains multiple embedded links, with a primary URL pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to contain the same lure URL. The heuristic firings indicate the PDF is designed as a link farm and uses a malicious redirector, strongly suggesting a phishing or scam attempt.

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.club/pify?keyword=how+to+remove+source+bottleneck+in+informatica In PDF document text
    • http://files.rspfitness.com/uploads/1/3/2/6/132681201/9843275.pdfIn PDF document text
    • http://files.hopeandloveministries.org/uploads/1/3/1/3/131380126/nubudonuvuga.pdfIn PDF document text
    • http://files.nulfglobal.com/uploads/1/3/2/7/132740836/wekuwadoxizav-tivuwu-lulurumiwak-kafowux.pdfIn 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/b5aed9_3c427963f18841658f4c384656a1e0d6.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e2b09b_79fb6f600d0b4ac6a6959ef2440228c1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/694d5d_43a82b8288b649129f509373788df74e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/35c6e2_4abd0aadef364715bf716c8baa842484.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/cf5aa9_ba46a7c0a2cd41d9b467fc048dc4fcfa.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/35ddae_0c9d14eabd6d4008979163ae2b3ae668.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/69695d_7bf6f4483ab640edb56b76b011f9e235.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4c3d6a_5af534f7f26c414b9ea81e4171abfbf0.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/bc4951_967b85e236314cb992fae6f53e86bc97.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/85c99c_00368901da334d6497877c1651912395.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4dd980_151787f7c6384e6aa06ada892df87b46.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/1decf9_9e61f2ab43c04fe5bd037dd7b504d7c8.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_632afd7eaebb437c8f9953f389c6ef76.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_off000071af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71AF 5344 bytes
SHA-256: 8de26b214d96b10d5cfaaa7fafd90beb7e4d00edf56841d44886a8e77d12b73f
font_01_sfnt_off000083de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83DE 10200 bytes
SHA-256: f9a077537fe20898307bf7f555b9ecc81d3b28cc2a5a20cb0c8e0335b5f197a6

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