Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd1a8b3d8834db80…

MALICIOUS

PDF

75.7 KB Created: 2020-12-16 23:28:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 986f4e2e00f95b29e11a7f8374366023 SHA-1: d4153e7a05aed9b4d8b011a12e8cb2e3fbb5f744 SHA-256: fd1a8b3d8834db8018f6f7c6aabe04995863726d2f3754c9201810aa36c9ab6e
96 Risk Score

Malware Insights

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

The PDF file contains a URL that leads to a phishing domain, disguised with a lure related to "cosmic weather manipulation". The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the embedded URI is the primary indicator of compromise.

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
  • 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://traffset.ru/123?utm_term=cosmic+weather+manipulation PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4420927/normal_5f9da38d440e3.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/5fc78acea4492a057e240f0a/t/5fcb68336fd93023bc046881/1607166004759/real_drift_racing_apkpure.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc596b6c14dfd36fe116043/t/5fd63fc3154d727871e6a430/1607876548875/aruba_2530-_8g-_poe_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/femeriporileroxofu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc78fa9f784ea513680d888/t/5fd633e1481cfa31adc16adc/1607873505059/ba_1st_year_marathi_book.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4de962bbd7406581ff778/t/5fc73277a907d7439cd618db/1606890105151/21097766096.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/jujupuwalolabasarutit.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/28344448469.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf54c83f75b16643cc0a0a/1606374614016/5.4_ready_set_go_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf46d6a371610b876b29c/1606218862227/joxalepemenosel.pdfIn PDF document text
    • https://s3.amazonaws.com/petubapizo/estimation_word_problems_worksheets_3rd_grade.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc38c0cea4a794d5655cf02/t/5fcbe8b0a51c5a1401b7cad9/1607198897839/gupujapegewewejome.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc3175ae2fce462bc9a424b/t/5fc5b36b18e72e5fdb9cab65/1606792044262/blow_up_phone_with_texts.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7acc6a4492a057e24fcdc/t/5fcba8c1190ee82df8e16361/1607182529654/vesicle_exocytosis_function.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_off0000ec45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC45 5172 bytes
SHA-256: 7e343226231b6441095f44674faa8ad7b0fe9517e70de265fb72c7e21ea408f6
font_01_sfnt_off0000fdbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDBE 10496 bytes
SHA-256: c2cb6bfc5a7b17de74c92ba6feb4d0a02949eeba80aea05f8ea58b0917360fe3

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