Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea45f647dfea713f…

MALICIOUS

PDF

57.4 KB Created: 2020-11-02 00:44:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 9e0d2572f7816825c1532012f6c70bdf SHA-1: d733b085d577a444c6ddf4804033efa50ccb5c45 SHA-256: ea45f647dfea713f2380f025089279f1fd38c421fe142704542e95e205665bcb
102 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 an ML classifier. It uses an urgency-based lure. 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 1.0000

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://ttraff.cc/123?keyword=dexpanthenol+5%2525+cream In PDF document text
    • https://jifefovemerozix.weebly.com/uploads/1/3/4/4/134444698/nopuj.pdfIn PDF document text
    • https://fevanigazotife.weebly.com/uploads/1/3/4/3/134376534/4032294.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/0134/8774/files/16099500166.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/richard_bandler_books.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/chamakam_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/8213/6728/files/electron_configuration_for_bromine-81.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/678c7198-e818-4c39-ab3d-3203522e4b5a/rawazapugemul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/285326cb-a3ba-4485-82b2-114a4acf8e4b/82300004272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/9169/6056/files/58067484914.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/the_book_of_jasher_read_along.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1bd2218a-9bda-41e1-9551-ed25c3bb228c/22096779440.pdfIn PDF document text
    • https://s3.amazonaws.com/wifozuxeku/oskaloosa_high_school_address.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f6d67ae-7f45-4184-bc2b-d9354c339bb3/99684361838.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_off00009de2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DE2 5420 bytes
SHA-256: d56e602ce351ec523edc41ff8dc5a0ac2f7775ce2f3dfc0c671438bc5807aad9
font_01_sfnt_off0000b020.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB020 12096 bytes
SHA-256: d8642514ee8fce8be0b2fdfc9775c9466c697d8c20e171a42cdbdb0f9a18bf19

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