Malicious PDF — malware analysis report

Static analysis result for SHA-256 e318e0b9801949d6…

MALICIOUS

PDF

36.8 KB Created: 2020-11-02 21:06:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 2b51f9f3e638479a37903665307efdb2 SHA-1: 1c2e232878c075adaaa614838cd4d86b6dc48f99 SHA-256: e318e0b9801949d60f2e82b60ac545cd3bd0cc7845eb65f859c197d0beb9617f
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL `https://ttraff.me/123?keyword=simple+solutions+math+answer+key+grade+4` 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 as part of a phishing or malware delivery scheme.

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.me/123?keyword=simple+solutions+math+answer+key+grade+4 In PDF document text
    • https://sasakafu.weebly.com/uploads/1/3/4/3/134371045/sizonifobadinu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393776/normal_5f8eaeaf75a36.pdfIn PDF document text
    • https://mufuwavujove.weebly.com/uploads/1/3/4/0/134042856/dutaduko.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380382/normal_5f9cc182551b2.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/9a00cc31-bdef-465d-9b5e-cfb9be4b5919/mahfiruze_hatice_sultan.pdfIn PDF document text
    • https://s3.amazonaws.com/baxadelefofibuz/character_analysis_worksheet_high_school.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a8eae3f-3fa2-48b1-b1e3-22d5025469d1/que_estudia_la_osteologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/1120/9888/files/va_cash_out_refinance_guidelines_september_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b55a406-700f-4398-8cbe-8df1ef059008/61990951201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/2452/5730/files/ron_siegel_chef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/7131/4328/files/psn_card_generator_that_works.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0506/5375/7627/files/xdcc_downloader_premium_apk.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_off00004fa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FA3 5820 bytes
SHA-256: 5e80a7b404a94f7c77a000e3879e4a0465fad42624856cc3ecedfdd789462dd8
font_01_sfnt_off0000635f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x635F 10332 bytes
SHA-256: d5076ad62aa6a7dcf008579ac326a7ef54fd4e8f5ebea5f5a9280802fbf36684

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