Malicious PDF — malware analysis report

Static analysis result for SHA-256 515a2d1b35aee0db…

MALICIOUS

PDF

35.7 KB Created: 2020-11-04 01:36:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: f7eff27713c8eb18ac325ea93a385f45 SHA-1: be10f7044236385011ff3067f30f4c7f37f10b86 SHA-256: 515a2d1b35aee0dbef7508edb52793b2cec682bfaab24a617692fce8374e13ab
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains embedded URLs, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'traffic safety merit badge worksheet' and includes the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful content.

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.com/123?keyword=traffic+safety+merit+badge+worksheet In PDF document text
    • https://nitetezelimon.weebly.com/uploads/1/3/1/4/131438651/luvusunovinev.pdfIn PDF document text
    • https://removevas.weebly.com/uploads/1/3/4/4/134443453/puxodinanutu_liboput_nalenukofil_medaxisigubej.pdfIn PDF document text
    • https://bubiwodepu.weebly.com/uploads/1/3/2/8/132815961/2403684.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fa309cd-f495-499a-9422-15d85997f785/84578714063.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/80097632189.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e3d8720-387f-4a72-b04c-4225ae20eb8d/63313513676.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5144d391-f589-4f41-b6ad-538214ad905c/hip_roof_porch_overhang.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/560d36ce-8c3a-439e-9381-f5cba5d3a6d8/gubonobamowevi.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/gedavera.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e43983ab-fc4c-4e3a-b7c0-ad4a506ab7f9/25622203873.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/40500070672.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1325949d-84d2-4ca8-b926-cd9de5853e21/momon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4114/3454/files/all_the_blue_day.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/edebf9d0-fa34-46d7-9a10-7a72ac002770/61792665485.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_off00004e1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E1B 5748 bytes
SHA-256: 642b2d2a0e0d5020d6c2f04bd002dbac2651cffc6af17bbaa899877c0cd82ad7
font_01_sfnt_off00006198.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6198 9572 bytes
SHA-256: ae94ec53fbbc2378bed6055fd89fedccc7eb562616481338e6a1d030e4e8c14b

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