Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cda773dc5e01587…

MALICIOUS

PDF

74.6 KB Created: 2020-12-16 00:28:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: ef1917123c84f99428c03eecfdf14d87 SHA-1: 3870c88f8bdd1722bb1d8f9dbf27400bd834aefb SHA-256: 3cda773dc5e01587e1154d5f57ad36c49e5e084b1d037c6fea71490ece7292af
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, traffnew.ru, which is likely used to host a malicious payload or redirect to a phishing page. The document body, though heavily obfuscated, suggests a lure related to a 'Wotlk lw guide'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffnew.ru/123?utm_term=wotlk+lw+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368246/normal_5fd2e10fad53d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379476/normal_5fc62ba05eab1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://static1.squarespace.com/static/5fc27d7511f6a419848fbf13/t/5fc6e08ea038a451bcdd15a9/1606869138804/libro_el_arte_de_la_guerra_maquiavelo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eeab4633-63e2-4c51-922e-90cdc0f36a24/nofivijuvafoxukuvatoro.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/28342913930.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/english_albanian_dictionary_free_full.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/dementia_research_paper.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc528f2abaecd33183df1a5/t/5fcd460ba87f9f1b19e6f373/1607288332247/33436442035.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af7956da-3dc3-45be-bc9e-9517ba7f69b5/61446567412.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/332377b9-e41f-4338-aaca-3d2d8f3e16be/68422851968.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/cara_google_books_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdfb52c6-3e1a-488f-8e4f-e4cdfd697f2a/double_agent_iptv_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd9a8d76-5fe7-4cfc-a9ec-d65fca5386af/doe_foot_applicator_deutsch.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94333dc0-7282-4415-91cb-762bb3a5c92b/zipujonitevesajen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/026a106d-d091-42d9-90a9-7ad076c318cf/catholic_encyclopedia.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_off0000dd6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD6A 4452 bytes
SHA-256: a1184571101712afc5fa5521b82679660bc72c8f1efc3c65431677480c29198f
font_01_sfnt_off0000ecbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECBC 10104 bytes
SHA-256: 0f64bc045d3c835399fd4f98616255d96d220542779f343b574a09eb018f2b3a
font_02_sfnt_off00010f80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F80 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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