Malicious PDF — malware analysis report

Static analysis result for SHA-256 e03214b538460773…

MALICIOUS

PDF

72.7 KB Created: 2020-11-19 14:20:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: f27626a303afe7ed51bd2ca1f9928f1a SHA-1: e6ca7189efc09e350555acdc1ae905332602b1cf SHA-256: e03214b53846077389f2e8cde4c13216a747eb90438e49cb0ccdc9d11272cf69
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is identified as malicious by multiple heuristics, including a critical alert for a PDF redirector link to `https://cctraff.ru/strik?utm_term=pfaff+230+sewing+machine+manual`. This URL is the primary indicator of malicious intent, suggesting the document is designed to lure users to a potentially harmful site. No scripts were extracted, but the PDF structure and the malicious URL strongly indicate a phishing or malware delivery attempt.

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://cctraff.ru/strik?utm_term=pfaff+230+sewing+machine+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4450864/normal_5f9f8c8aaedee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494875/normal_5fad128946121.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/bevarolimesale/davis_drug_guide_free.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/65200045140.pdfIn PDF document text
    • https://s3.amazonaws.com/digigitusuduk/91371748281.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe7733c6-9081-4799-8eb8-3de392ff0b80/crafting_feats_pathfinder.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dda9d0db-e743-49d9-8ccc-0461ae95ac73/epson_rx595_user_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/formal_and_cocktail_dress.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d65612d-6832-433c-a462-d7958fae1e26/simobeva.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/marriage_certificate_form_rajasthan_in_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/nunakixuma/53164258364.pdfIn PDF document text
    • https://s3.amazonaws.com/rewepalazamiso/motisonidaxivapazumumur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c5ab0ae-c460-42ec-b871-54cbbf71309a/wugupibo.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_off0000de81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE81 5732 bytes
SHA-256: 7227dbe900458fbb7ac22d8769e2f722bdfcfcdc99ef248d92cce5ca7827580c
font_01_sfnt_off0000f1fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1FD 10856 bytes
SHA-256: 411d022aead31e96fcc9e66063372ab2d9d7991ce29ae2523a0867067e0ec884

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