Malicious PDF — malware analysis report

Static analysis result for SHA-256 970f27143fb734b0…

MALICIOUS

PDF

90.7 KB Created: 2020-12-04 00:00:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5a7757d68a1def0dedc018ec921d56e7 SHA-1: 98c2d18e161ec328e4e2066b9330c97bd70d24c3 SHA-256: 970f27143fb734b0dfc26f01d2f5f7f8adbc8e636eb29dc0d269a73795375ac0
96 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 embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffine.ru/123?utm_term=grade+5+eureka+math+module+1 PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc0b5bec30a162e0c519083/t/5fc0d82ef3de5e49b5840a4f/1606473775870/where_can_i_get_free_chips_for_bingo_bash.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6a1c64b-ca4e-4b73-a0e7-dc074642e28f/remetari.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc34393405d5340f338f1f3/t/5fc61c4c18e72e5fdba850f3/1606818894596/45550022700.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc6d2df7-da34-4d12-b6d5-ebd6e923c196/80721502339.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/341f6cfb-9ef6-4b48-9d84-e53678e87352/90644133924.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/level_b_vocabulary_workshop_answers_unit_5.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50fdbe29-4cd3-4eda-bc22-d803cf8dd509/40898345274.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc122ac2e537a05ef0a84b2/t/5fc2a67f9d79364840e43933/1606592128429/schur_product_theorem.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/logo_bkprmi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a94529e-97c1-4067-828d-2d187fb26486/rodibuzamakot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9a99041-be05-478c-ae87-a05f566a5f65/coin_master_app_android.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5dd1224b06a7eb3219a2a/t/5fc8167d094cf7617db25e8f/1606948479254/how_to_make_animals_with_paper_cups.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e5632a2-7fb3-4022-8a2a-6fd0e25c6aed/automobile_book_hindi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf56481972c46e3c95d168/1606374985798/rockford_fosgate_amps_and_speakers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e82d627a-ff6e-4582-86fa-d16ba980fb16/26621283399.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010d7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D7E 5156 bytes
SHA-256: f12dd55e7f5b0274eab777ff08e6e176a806fa4a6345842df2e911f6f38bffd7
font_01_sfnt_off00011ee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EE6 11656 bytes
SHA-256: 4789114223f9c7b2984224dfd849ea8409df540b75b85886523d67b2b02615b4
font_02_sfnt_off000146c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x146C6 16488 bytes
SHA-256: 9bdafe9a1d8fdbd256c55d47f425bc703882f9b285e708533ba5ef9d3692697a

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