Malicious PDF — malware analysis report

Static analysis result for SHA-256 0361a3222e8029ed…

MALICIOUS

PDF

80.8 KB Created: 2020-12-05 14:02:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: e995c46665fb52b43a05c0698cf7aa0b SHA-1: d2d277014557aaec9c9671a087b1ddbbab4d7175 SHA-256: 0361a3222e8029ed481338bf3c54659047954ea32e8c41f30ebe74f53b8c1e6d
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffmen.ru/aws?utm_term=can%2527+t++photoshop+creative+cloud'. This indicates the document's primary purpose is to lure the user to this external resource. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious URL is sufficient evidence for a phishing or malware distribution attack pattern.

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
  • 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://traffmen.ru/aws?utm_term=can%2527+t++photoshop+creative+cloud In PDF document text
    • https://cdn-cms.f-static.net/uploads/4405193/normal_5fb4a34ce6765.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491426/normal_5fc1a0f326820.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454678/normal_5fc3ed903e5f9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365634/normal_5f8fccd898bf6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413109/normal_5fbc81e745df3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474719/normal_5fc549219e69a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473890/normal_5fb91b25c2401.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc3bf9f2e34347c70560205/t/5fc56cf03f75b166438afa08/1606774010129/how_to_do_coffee_cup_calorimeter_problems.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5adf5be9b6939512b78e3/t/5fc672804f98375720bcec70/1606840961023/solipegugeranaxixaf.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc013fe3398ff751529adbc/t/5fc15ef7fa04221c71530cf3/1606508280546/14200187839.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc10f0fab79f442f22a8155/t/5fc329f44e98326c027883c6/1606625782096/zovofolobixitajagezarato.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf66443485235c86be7648/1606379077752/probability_word_problems_cards_and_dice_worksheet_1.pdfIn PDF document text
    • https://s3.amazonaws.com/sazariwapa/mckamey_manor_full_waiver.pdfIn PDF document text
    • https://s3.amazonaws.com/xisakazelelinim/tatuledimizore.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e0f3f7cf8c75402ad020/t/5fc4a86018e72e5fdb6c2122/1606723681672/39138801416.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_off00010085.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10085 5160 bytes
SHA-256: 49562f103066ed95afa503b6cb91d2a75fcf029c8693afca158ddc5745f067f1
font_01_sfnt_off00011213.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11213 10476 bytes
SHA-256: e30acfa21149c083b69325f42f96ad2e1d658479ade0d16a9b09b8fc516497f1

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