Malicious PDF — malware analysis report

Static analysis result for SHA-256 34beb7cf6a9303f7…

MALICIOUS

PDF

72.9 KB Created: 2020-11-04 12:48:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2410c530d232fa81ce307a1c205abed7 SHA-1: 12a3542cd178b658afd9c82da109eea158fd4d65 SHA-256: 34beb7cf6a9303f78a75827e743efd71a47ba9b69873a1fc0e3bac8a939e8e53
94 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com' with a lure related to watching movies online. The ML classifier also flagged this PDF as malicious with high confidence. The embedded URL is the primary indicator of malicious intent, likely leading to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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://ttraff.com/123?keyword=watch+high+school+musical+online+free+123
    • https://cdn-cms.f-static.net/uploads/4366405/normal_5f87108f220be.pdf
    • https://cdn-cms.f-static.net/uploads/4443617/normal_5f9f0f9223e76.pdf
    • https://cdn-cms.f-static.net/uploads/4391331/normal_5f9257e32aafa.pdf
    • https://cdn-cms.f-static.net/uploads/4376086/normal_5f9d297dae290.pdf
    • https://cdn-cms.f-static.net/uploads/4416939/normal_5f9f89743e9d7.pdf
    • https://cdn-cms.f-static.net/uploads/4366661/normal_5f8957c2becfb.pdf
    • https://cdn-cms.f-static.net/uploads/4451355/normal_5f9f8e5162190.pdf
    • https://cdn-cms.f-static.net/uploads/4368225/normal_5f8b61e95fdd0.pdf
    • https://cdn-cms.f-static.net/uploads/4380543/normal_5fa251369ac0c.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ba3bb060-a73e-4b95-bdd3-75350c43915b/50841712003.pdf
    • https://uploads.strikinglycdn.com/files/ed985637-100f-4c07-90ef-0c8e5929a599/6570251698.pdf
    • https://uploads.strikinglycdn.com/files/5503352e-5813-48bf-bee7-28144714f0ee/nabifutujejuxorixunejusi.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dcd2.bin
c61912b84818a14c70b56646b5745859a12406bd354e8f1698bfcf3a4bf1968d
pdf-font-stream PDF embedded font (sfnt) at offset 0xDCD2 5656 bytes
font_01_sfnt_off0000effd.bin
93c8f318fd42c62c2c98c062b6b20393c416a567b0d8d450857112b73afaa4ce
pdf-font-stream PDF embedded font (sfnt) at offset 0xEFFD 11304 bytes