Malicious PDF — malware analysis report

Static analysis result for SHA-256 8942f166ea4573e9…

MALICIOUS

PDF

47.2 KB Created: 2020-10-25 17:00:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 774cda4a16046ae9ca65eae14c12bfe4 SHA-1: 372172859c35932d00627ee9bbe1f61976603499 SHA-256: 8942f166ea4573e9a50a9da110d9b6ea121b6852be99e5fa0373e1200c2ff246
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, 'https://ttraff.club/123?keyword=child+care+and+protection+act+2020+pdf', is the primary indicator of malicious intent. While no scripts were extracted, the presence of a malicious redirector suggests an attempt to lure the user to a compromised site, likely for further exploitation or credential harvesting.

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=child+care+and+protection+act+2020+pdf In PDF document text
    • https://mawoluji.weebly.com/uploads/1/3/4/2/134265904/jolarura.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/metor.pdfIn PDF document text
    • https://vilukenuxe.weebly.com/uploads/1/3/2/8/132814007/volisilitij_luperodebif_vaxulaxolirid.pdfIn PDF document text
    • https://jobubati.weebly.com/uploads/1/3/1/4/131453688/2828415.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366029/normal_5f8727ff40b1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375076/normal_5f8c09db4cd94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401696/normal_5f9573be83694.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/b7c1fef5-a248-4b87-8029-41d9cfc42fe4/2573947056.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83f411b2-2e57-49d1-b38a-79e93ecfdb8d/steins_gate_fuka_ryouiki_no_dj_vu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee310c2f-b306-4724-9a8c-797dab53d26f/57362616817.pdfIn PDF document text
    • https://s3.amazonaws.com/zijivevip/aspectos_biologicos_de_la_adolescencia.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/corel_paintshop_pro_2018_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/9233123768.pdfIn PDF document text
    • https://s3.amazonaws.com/remeranexe/fiwifogatapibuver.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/zuwor.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/7_day_flat_belly_diet_plan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e059ef9-5811-4bdf-bdeb-b937dfca85e4/ruzubudifubosafiteripo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b2b02c0-7017-440e-9d5d-2f0bfa619f70/26375409447.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_off000069a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69A2 5152 bytes
SHA-256: 093afee10344421bd62f391b56031ad079816baa22f44845f0c76c4ed1b6b6cf
font_01_sfnt_off00007b10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B10 11328 bytes
SHA-256: 7415233c422b96e68afc9bb0e6300dd0bb12b49a0adb8102c30bcfaeb266f592
font_02_sfnt_off0000a0c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0C9 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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