Malicious PDF — malware analysis report

Static analysis result for SHA-256 59729824dc2a9294…

MALICIOUS

PDF

56.4 KB Created: 2020-10-15 00:14:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 44d0354396842b9b0f2ea1a8cfeaa3cb SHA-1: fc64becea88327dc7014ab9a2d9ade590eb7c58f SHA-256: 59729824dc2a9294d1d7534e819a4da370a15994af8c38f88a885aae512dea70
94 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, https://ttraff.club/pify?keyword=wowhead+wow+classic+fishing+guide, which is likely used to deliver a secondary payload. The document body, though heavily obfuscated, also contains this URL and other PDF URLs, suggesting a phishing or redirection attempt. The ML classifier strongly 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://ttraff.club/pify?keyword=wowhead+wow+classic+fishing+guide In PDF document text
    • https://site-1044151.mozfiles.com/files/1044151/zodisadojisofusenuf.pdfIn PDF document text
    • https://site-1037096.mozfiles.com/files/1037096/3706379533.pdfIn PDF document text
    • https://site-1040218.mozfiles.com/files/1040218/28834456487.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365591/normal_5f8767cfebe47.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365634/normal_5f876794a5374.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366399/normal_5f871a9a06862.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366369/normal_5f876774b1de2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366957/normal_5f876a128f6e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366327/normal_5f871825d3537.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367005/normal_5f8769b68f0e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368229/normal_5f8768772f62f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365583/normal_5f87590bd4ef6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366057/normal_5f87485c649ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366015/normal_5f876a0c1cbc4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365599/normal_5f870e0fc3390.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://uploads.strikinglycdn.com/files/ecd4553b-e7fb-460f-a596-ccf45fbdd353/ropibapavuxivotimazononuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/731e11dc-9514-4d1b-b3a1-07677ed122ec/vugovefa.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_off00009187.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9187 5092 bytes
SHA-256: 8afa36ec2c89792e4fae182fd64e184953e8d50f781205c7d640c859273e7e59
font_01_sfnt_off0000a2e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2E5 10580 bytes
SHA-256: 6672a057e3172e3e7ae3d3af2ea08216017b963e36b6c17e72b80004b79d7d05
font_02_sfnt_off0000c6a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6A3 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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