Malicious PDF — malware analysis report

Static analysis result for SHA-256 adc10cefa7eb200e…

MALICIOUS

PDF

42.4 KB Created: 2020-11-09 02:46:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5f2efe95b019d73c3b6b4e6ad076f821 SHA-1: 1358a8e0d32de80043d2b61cbf21563eea6d3831 SHA-256: adc10cefa7eb200edd03e75c7e8a524eb012b540f27f89e5c07006c966e9443a
66 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains numerous embedded URLs, with one specifically highlighted as an external URI leading to 'trafffe.ru'. The document body, though partially obfuscated, suggests a lure for a 'free 2000 dodge stratus repair manual'. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for multiple links, reinforcing the malicious intent. No scripts were extracted, but the presence of embedded URLs and the link farm heuristic strongly suggest a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffe.ru/123?keyword=free+2000+dodge+stratus+repair+manual+free PDF link annotation
    • https://duvujisukodat.weebly.com/uploads/1/3/4/6/134674851/86c902.pdfIn PDF document text
    • https://walinakonefal.weebly.com/uploads/1/3/4/3/134316097/22cdfeabe.pdfIn PDF document text
    • https://vagonegasix.weebly.com/uploads/1/3/1/4/131482995/233c1d723665.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/dbbd04.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/22d16004-8309-434e-b2f7-201503109488/mevebutotole.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/425409ad-ac53-4291-ba17-051e79caa83f/lofuxibawogefubexofixu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/375251dd-c78a-4495-89f5-3b98c4d0fd4f/8001255562.pdfIn PDF document text
    • https://pazeden.files.wordpress.com/2020/11/86767518253.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b97fd1ff-5ad1-42e0-a2d1-565ace552d44/39130203432.pdfIn PDF document text
    • https://s3.amazonaws.com/kabisebax/vasusuxugubus.pdfIn PDF document text
    • https://kudajufe.files.wordpress.com/2020/11/gigitapelexov.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/losobotolemixalilesuge.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49284954-4e35-4f87-923d-a1f0edaca5da/42182300380.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbf9ced7-d30d-496b-8c28-75373f492135/kopufiwilo.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6446 5588 bytes
SHA-256: ad1165ff26111f34fbca990bfc8b1f62dda4674865414dc302810a8487eb0269
font_01_sfnt_off00007738.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7738 11044 bytes
SHA-256: 0e7b481c558c46fe40d23767a42f7231de3f97e046d46f7b219c1954fd751b8d

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