Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccbfbb4c1e10bffc…

MALICIOUS

PDF

71.4 KB Created: 2020-12-22 04:18:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 422ffb00e370cee7f67e0d52b8ed888b SHA-1: 7595d226a2454024fc9966a64e82d9df2002d123 SHA-256: ccbfbb4c1e10bffcbeebca9d4d8192e3efbfa03a55223507daa07d17dc85057a
154 Risk Score

Malware Insights

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

The PDF file contains a link to `ggtraff.ru`, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Norton internet security 2010 product key generator', suggesting a phishing or scam lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://ggtraff.ru/123?utm_term=norton+internet+security+2010+product+key+generator In PDF document text
    • https://static.s123-cdn-static.com/uploads/4368237/normal_5fcfef0165c23.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365547/normal_5fad725a9047e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370266/normal_5f914969bd50a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412780/normal_5fa78de2eb871.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vinivuxo/29152842377.pdfIn PDF document text
    • https://s3.amazonaws.com/mufukep/clasicismo_pintura.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e387b1a6-3ac8-4f48-b752-840006cecc54/sanapatubujoma.pdfIn PDF document text
    • https://s3.amazonaws.com/zokokamu/wotitakavelukesutir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fb9ca99-e8c3-44ec-a4d6-d5183c134033/fedixererobanaxabebato.pdfIn PDF document text
    • https://s3.amazonaws.com/bejeseja/kareem_abdul_egyptian_musk_oil_reviews.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7dc3d08d-d22f-46dc-a591-4efbf076ec60/27464326969.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/fefopujujexoxatuvur.pdfIn PDF document text
    • https://s3.amazonaws.com/dadupawo/aradhana_songs_free_ntr.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_off0000d80d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD80D 5672 bytes
SHA-256: a66c2cadefdc32010a55ffc68212852d9421b3cdd2706ec97640e0f2c518a2fa
font_01_sfnt_off0000eb8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB8C 10648 bytes
SHA-256: 3dc51192bd95ac4eca1e6195c826c2c16dde7b5403a49469882915c069b4e68b

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