Malicious PDF — malware analysis report

Static analysis result for SHA-256 237d1bd1ef1f9b55…

MALICIOUS

PDF

45.1 KB Created: 2020-10-23 21:53:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-28
MD5: 87affcf1967d73115e1187254ab492ea SHA-1: 0974b3f7cd0d06e6d71f91bf3df584de98a9a838 SHA-256: 237d1bd1ef1f9b55cbad17d937a146066a6525ba6e6b2b4ed811d60ee0fbd4d1
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link. The embedded URL, 'https://ttraff.link/aws?keyword=antrenmanlarla+matematik+1+pdf+%25C3%25A7%25C3%25B6z%25C3%25BCml%25C3%25BC', is the primary indicator of malicious intent. While no scripts were explicitly extracted, the nature of the redirector suggests it's part of a phishing or malware delivery chain, likely initiated via spearphishing.

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/aws?keyword=antrenmanlarla+matematik+1+pdf+%25C3%25A7%25C3%25B6z%25C3%25BCml%25C3%25BC In PDF document text
    • https://nazuvunu.weebly.com/uploads/1/3/4/4/134438845/pemasatudopa.pdfIn PDF document text
    • https://degujipimisa.weebly.com/uploads/1/3/1/4/131453395/6084972.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4333/2000/files/80_20_running_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/2120/5145/files/zezabifijapovejukur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6533/5208/files/42990375532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1225/7952/files/36915653771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/5129/4376/files/mosowenubomamipitifiboxa.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/bonusinadozitek.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/62071131666.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/dikiwisukodubikefaxenozap.pdfIn PDF document text
    • https://s3.amazonaws.com/fejenijovekozu/letters_and_sounds_gov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5126/0836/files/41294903065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1028/3931/files/43142868107.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4223f7fd-40a0-444b-a7cc-2facb3461f55/reading_rainbow_song_lyrics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1364749-e43f-492b-b78e-ef6e57b63c36/82291729948.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/acc51ca6-2952-4b97-992c-2534c7f7ee00/76956777400.pdfIn PDF document text
    • https://s3.amazonaws.com/bisute/pejabota.pdfIn PDF document text
    • https://s3.amazonaws.com/tarajix/neputukupogaxaxewalaso.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/4665643886.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_off00006d31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D31 5604 bytes
SHA-256: d3ac58da95d42321b13de11c72b274cc73fa099580e174ea7b951a9fc39c9783
font_01_sfnt_off00007fbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FBF 12096 bytes
SHA-256: b527a2120bf11bf07cb921aecec9f28b87bc8ea1b88cbd9df64f3dd395cd145b

Open this report in the interactive analyzer, or submit your own file for analysis.