Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdd46e6bcd69e68e…

MALICIOUS

PDF

39.8 KB Created: 2020-10-28 21:19:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 23360986d25c71255472fc0e4d41ccd4 SHA-1: dcbdd00bde4accab01d9275a34b67af8fbcb2507 SHA-256: fdd46e6bcd69e68e878bb57f6e34fb77848c5f495e4a434fca663735be998a7c
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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.club/123?keyword=silverstone+cookware+10+piece In PDF document text
    • https://sevivuninuk.weebly.com/uploads/1/3/4/4/134459749/wusut.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365639/normal_5f87d0ee8a92b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369629/normal_5f8854f237739.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369322/normal_5f8d7b7b569c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369932/normal_5f8c8d4341cb4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368958/normal_5f89018767e86.pdfIn PDF document text
    • https://tumixivig.weebly.com/uploads/1/3/1/6/131636813/tadofasuzogaw.pdfIn PDF document text
    • https://kizekusoviwo.weebly.com/uploads/1/3/1/4/131453028/finowo-pojanuzupas.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://cdn.shopify.com/s/files/1/0497/6050/1921/files/88969132304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/9359/7601/files/tasovem.pdfIn PDF document text
    • https://s3.amazonaws.com/ritoma/capitalismo_tardio_mandel.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/adenocarcinoma_de_pulmo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/3257/4628/files/xozewukexed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6444/9431/files/87948327109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/9458/7588/files/wupel.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/standard_form_to_slope_intercept_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/zekisofid.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/2_liter_bottle_rocket_with_egg_and_parachute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3206/7748/files/rizonukerarefesukil.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_off000050e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50E0 5228 bytes
SHA-256: 2308509fa60d2bec43dd6be57a1e19a238ca9a4424db70f2a51eed1c2e771814
font_01_sfnt_off000062bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62BB 10072 bytes
SHA-256: 0a2c19f9fde50f64422bb2567b54f8e7c74b6bf4edb32f11f8ee5df1b79166e2
font_02_sfnt_off000083ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83CE 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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