Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d2fcbadb39adb38…

MALICIOUS

PDF

73.7 KB Created: 2020-12-02 11:51:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 779d3d894660636711b04de4d46ab136 SHA-1: dec5999625e3b413cfe23943ab641236a1ac7f95 SHA-256: 6d2fcbadb39adb38c2fdaa89dd158fe603af645dadfb3556137e23d8fb7591e2
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://gettraff.ru/123?utm_term=spore+apk+mod In PDF document text
    • https://cdn-cms.f-static.net/uploads/4451027/normal_5fb725e744869.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475203/normal_5fb77b92e281d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377125/normal_5fc5342b0fe76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415748/normal_5f947e207fa9a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486742/normal_5fc22560a5fb8.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://s3.amazonaws.com/xulepiwa/64935667356.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85e8b00e-6fde-4fd2-915f-d2937889cd4b/kujubenozonelezifov.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/dafigusefadusokoduv.pdfIn PDF document text
    • https://s3.amazonaws.com/voxazedisula/kesevofiruwabumoti.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1162b68612547ed5f39f0/t/5fc1bfcabc819f1cf419d2cc/1606533066349/trane_air_conditioner_remote_control_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c27c44a-ec3e-40fb-85da-3308ed2c8eca/31187918195.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7438c11-d889-43fe-a1ea-1194bac63341/crij_bretagne_em_que_te_tortellini.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/benchmark_capital_email_format.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/62629211729.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6493883c-e228-4dff-94cd-baba1490f014/94703176451.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc506b4e5c7695ca9b60c25/t/5fc5b340a97599144ebe73e0/1606792000771/hyatt_legal_plans_cost.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_off0000d0a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0A3 4616 bytes
SHA-256: fdb4eb7716503af522c1ea7895ca7b52ec4392b861dd246508d558d21c305f73
font_01_sfnt_off0000e042.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE042 13864 bytes
SHA-256: 46dd51f035518a97fcaeb7401f9782ebeb22baa76b62597961306c6042338f9b
font_02_sfnt_off00010c17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C17 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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