Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff246c3a4ae3fbea…

MALICIOUS

PDF

43.4 KB Created: 2020-11-06 22:32:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 70725642d78e15ef2a9297804f907c42 SHA-1: 18ffe943047f657c1625ac7dea360415423f1dc7 SHA-256: ff246c3a4ae3fbea283ae2a2de4c9e087fc0fb86db841e8af1768c57d2cc6607
114 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating an attempt to lead the user to a harmful site. The heuristic 'SE_CALLBACK_LURE' suggests a phishing or scam pretext, further supported by the presence of a URL that appears to be part of a lure. While no scripts were directly extracted, the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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?keyword=alamance+county+warrants In PDF document text
    • https://lififamofupuge.weebly.com/uploads/1/3/4/3/134317858/medetez.pdfIn PDF document text
    • https://xukabasal.weebly.com/uploads/1/3/0/7/130776322/tupokife.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384155/normal_5f991b5000d3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369784/normal_5fa0c9a257016.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf9b933e-b155-4071-9da4-a196125df685/32642618368.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/ankidroid_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/battle_of_the_books_2019-20_list_wisconsin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2836779-b154-44c1-ba8b-0d348add6d44/manual_para_una_comunidad_escolar_segura.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b22c7fd6-0f33-4b67-b596-c6fbc54ab366/ginubijakux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f89ae5a3-908a-4a48-a3b5-25c6b1d110d0/baraboo_concerts_on_the_square.pdfIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/olio_professional_series_pool_table.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/zig_ziglar_secrets_of_closing_the_sale_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sakaburepagase/sql_queries_for_dummies.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/urban_fiction_books_african_american_free.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/biduvitorupex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c26f21cf-c901-4c20-a593-5aded99d3218/marijolunuzeveluxobeza.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_off00006912.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6912 5128 bytes
SHA-256: 16a0443d8844c6baba4076fff81a5174b909b27d00eb7198eea6f79357194f37
font_01_sfnt_off00007a81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A81 11608 bytes
SHA-256: bcfe9e78d1e81d683e6dd3a865123c02536a4374976fb51c9d0f2e7d5ad0332b

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