Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a5e30077056babd…

MALICIOUS

PDF

158.7 KB Created: 2020-10-08 07:14:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 964442263939ba235911bb25e69f7bbd SHA-1: bbcdbb11fcc12edfbc8d35590ad6b1e33db9708c SHA-256: 5a5e30077056babdc13072e17383a4464a437618d334ff4a937619475e97a44e
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The ML classifier also strongly flagged this PDF as malicious. The embedded URL, 'https://ttraff.club/pify?keyword=sphinx+time+travel+5e', is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=sphinx+time+travel+5e In 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/1/0464/8573/3528/files/abraham_kuykendall_genealogy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0468/9975/7218/files/meat_boy_online_unblocked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/4683/4854/files/nidagaxugisatapibajowem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5335/6955/files/student_profile_sheet_qri-6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/5298/5237/files/miracle_nikki_chinese_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/9379/7280/files/pakifedibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/boulder_county_clerk_and_recorder_vehicle_registration.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7179/8436/files/rofowazominuketewopuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6265/7177/files/71757929515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/8646/2106/files/lukuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac312500-3121-4d04-8971-e47eff586a59/69580584557.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d90921d-7958-4df2-b3db-7892df7ef01e/mimevipegurune.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/108a191a-ba72-4c8d-b0b3-5dcbde112c9e/retifaludisigusikafowupis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c97bcfa5-91d5-4e30-b00c-3faa5eab25d5/16705485227.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/994f8643-acdc-45d0-bd1d-7e175afd7d7e/28908443407.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/371a7896-5afe-4676-bc41-f9d2a168d77b/56006606606.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_off00023704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23704 5236 bytes
SHA-256: 844b02c2bd37b74d87f003d5b9f3d81807c4e499edff30559f62348b3be449ba
font_01_sfnt_off000248b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x248B6 10592 bytes
SHA-256: dd52ec5468500e8db649d3b94362134782a8e4b7e4adce04f99f082f19312e45

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