Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdf3188b99e710bb…

MALICIOUS

PDF

52.2 KB Created: 2020-11-09 04:26:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b55ddb573ff557262054def1130b43d2 SHA-1: ed1e5ee8fe101ea9e61f84a52b3c8f8f96374b3d SHA-256: cdf3188b99e710bba1f7723a102cac536a1b85089354a22dc598e3d1c713d57b
94 Risk Score

Malware Insights

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

The PDF contains an embedded URL that redirects to a known malicious domain, indicating a phishing or redirection attempt. The document body, though heavily obfuscated, contains the same malicious URL and keywords suggesting a lure. The ML classifier also flagged this PDF as malicious.

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://gettraff.ru/123?keyword=mazda+miata+rf+body+kit
    • https://nobinetezo.weebly.com/uploads/1/3/0/9/130969761/mogosaboxebagax.pdf
    • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/fivodufiroxafufug.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/f31cfd1a-5dd6-4a90-b76e-2ca415d2c801/pikegedulugetotawatis.pdf
    • https://uploads.strikinglycdn.com/files/80e6bc9e-3eaf-4d81-9ce1-5c04fb8ea55d/71353162570.pdf
    • https://xokidat.files.wordpress.com/2020/11/junuxulopufefekemeno.pdf
    • https://uploads.strikinglycdn.com/files/e21f9cbf-ba4d-4dcf-86c2-1f652e4d9c9c/mujagagebusatov.pdf
    • https://uploads.strikinglycdn.com/files/c72fbcf4-760b-4084-ae9a-7b8da439f261/wedding_planning_checklist_google_doc.pdf
    • https://zenomanotape.files.wordpress.com/2020/11/diccionario_biblico_reina_valera_1960_gratis.pdf
    • https://fororonur.files.wordpress.com/2020/11/sudevekutijiku.pdf
    • https://uploads.strikinglycdn.com/files/9ac407e6-051b-4a59-ab22-25dd66d2cbb2/gixomubezunofeki.pdf
    • https://mufetamutobe.files.wordpress.com/2020/11/43039138876.pdf
    • https://ruxudaverotu.files.wordpress.com/2020/11/62956678797.pdf
    • https://uploads.strikinglycdn.com/files/93650f15-4733-4106-9a81-6a40666af43a/zirixewemivujusituzajog.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c9e.bin
daa464992833498aeea8162072d590ce607b5a38febd641a4b4e7fef94ab354e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C9E 2888 bytes
font_01_sfnt_off000076e8.bin
efabb89c30f9794bbd9c5dfaa6732f18556593b33717d6e4fa0e613c609a3e6b
pdf-font-stream PDF embedded font (sfnt) at offset 0x76E8 5204 bytes
font_02_sfnt_off000088a7.bin
511596b13407132fc55a3bd84b47f85d3f3be019ad160f42e1b3e9c8e91b0d41
pdf-font-stream PDF embedded font (sfnt) at offset 0x88A7 10952 bytes
font_03_sfnt_off0000ae36.bin
5338b60dac2ddcc9fbf81734882903060897ff8c18563aad6864a581beec55c6
pdf-font-stream PDF embedded font (sfnt) at offset 0xAE36 16068 bytes