Malicious PDF — malware analysis report

Static analysis result for SHA-256 13cad09dba27dcb1…

MALICIOUS

PDF

84.0 KB Created: 2020-12-08 12:12:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 05c2bd554551f0b94498b34c8d02c0d9 SHA-1: 674a1e0d64d54c690141c30e6ce953a446671edf SHA-256: 13cad09dba27dcb19cea5f21ae96223a3b6be12a292ab2a8997078e0c3c76179
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body text, though partially garbled, includes keywords that might be used as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://trafffe.ru/123?utm_term=eighth+note+beats PDF link annotation
    • 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://static1.squarespace.com/static/5fc5559ebd14ff0dd2ba110b/t/5fcd61dd260a660a6bed64be/1607295457653/jilujotilaweri.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0dd131452f90b7fe52ecb/t/5fc3241b5147b1480499f683/1606624284259/37056707444.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4e0cccd1e280355eda5a3/t/5fc9ba5cee6dcf7e36313973/1607055966823/95691071182.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc128c411f6a419848742fc/t/5fc40665f3de5e49b5e1ed6c/1606682215174/19004165885.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc378c5085bf90c0e0d73db/t/5fc51bb76457125654deb2a4/1606753208219/oveena_skin_care.pdfIn PDF document text
    • https://s3.amazonaws.com/dusined/libros_de_teologia_biblica_en.pdfIn PDF document text
    • https://s3.amazonaws.com/bagisi/kibin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ba0b2d1-2874-45e3-9dc3-e45cf62f8d53/domain_class_diagram_symbols.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/45110524422.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0b63bab79f442f228a4c9/t/5fc15cf908845d0924bd7e23/1606507770655/three_levels_of_a_product_kotler.pdfIn PDF document text
    • https://s3.amazonaws.com/bivanud/nadazuxatesuradegetaliv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9875babb-8fb4-4a92-a6f2-df55b0367460/late_model_restoration_reviews.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ddb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDB1 4704 bytes
SHA-256: e115d28be1168e860324a4d5e22945788de3853a854e36ef1c5919a2c5c2e832
font_01_sfnt_off0000eda0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA0 2708 bytes
SHA-256: 628b1f86573fdbf8dcc0bfd6dcc75ce61899efa536cca6586d73de64dc117683
font_02_sfnt_off0000f8d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8D4 11388 bytes
SHA-256: 09cf0b630ada63283a1cd69030289797b7d8b0c0264c3baddc0e370f4c77c6af
font_03_sfnt_off00011f7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F7B 16120 bytes
SHA-256: 184efd0e138a9418359f6897f9ac56b5cd93cafbd57abf30711ac2aee7e18832
font_04_sfnt_off00013463.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13463 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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