Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bef22fa5efa05c0…

MALICIOUS

PDF

44.8 KB Created: 2020-10-12 07:07:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 3cd948783473be06d24b71731c1fef96 SHA-1: a9e7b5b8b0515ab84c804ba59324fe68b65c077e SHA-256: 5bef22fa5efa05c00470fd92445c3e86cc0e1da266af109f075d1a0880a25921
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, 'https://ttraff.link/pify?keyword=puakenikeni+plant+in+san+francisco', is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and the presence of a malicious URL suggest an attempt to lure the user to a harmful site, likely for phishing or to download further malware.

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.link/pify?keyword=puakenikeni+plant+in+san+francisco In PDF document text
    • https://site-1042968.mozfiles.com/files/1042968/jevagiwotamelotetebobakiv.pdfIn PDF document text
    • https://site-1039509.mozfiles.com/files/1039509/47068118073.pdfIn PDF document text
    • 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://uploads.strikinglycdn.com/files/2f9f276a-215b-443d-aeb3-8ef954dc26f8/dorabesusinulilosu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b7e8d57-97e6-4710-b732-140a86eaf4d2/rerekavidukese.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e004ca5-f2ce-4ad3-8b57-7611f7e3d655/48928920268.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10123672-51c2-44ad-9a5e-9734af7a9aba/14706464957.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c339d72e-b688-4e92-9e9b-ebb1982784ae/bevebedezuxijatinanoxe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a9a9240-077b-47cd-ac8f-bf5a840c793b/pizolizarejikikenur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1150aeb2-eb52-4946-874b-a07372b6b12a/76342906539.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/861d3811-608d-4131-a54b-e12532691846/78053836808.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e1983b6-f9b1-44cc-881f-af08e904eea3/84340263941.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e838b945-8f3f-44b8-8d85-9e692a7afe71/tebujixubalituliduzosana.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e2478a7-aba6-4e5c-86f5-3c762d8ea6bc/61806325779.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6543 4956 bytes
SHA-256: b5ea570feca8f962e7a0884f63c543085453995193c7d758b7620f0f175c6c52
font_01_sfnt_off0000761c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x761C 9984 bytes
SHA-256: c7c0c6e4d2a33c393baae9e4b7da2b2e573c6cb051a971888f5f3a157d740660
font_02_sfnt_off00009847.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9847 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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