Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc4d3f4ccc45daab…

MALICIOUS

PDF

45.8 KB Created: 2020-10-15 20:48:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: f51483b7e889d240afda1356de81ebef SHA-1: e5beacc16b277f9dd242a6d3aaee65134192d875 SHA-256: dc4d3f4ccc45daaba56db867ee1e57df53a78818bee7320d4d97e3efb857e44a
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, which is designed to lure users into clicking on it. The document body text and embedded URLs suggest a social engineering attempt, likely to trick users into downloading further malware or visiting a phishing site. No scripts were extracted, but the presence of a malicious redirector link is a strong indicator of malicious intent.

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.link/pify?keyword=wow+skinning+guide+tbc In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366055/normal_5f877edab5946.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365540/normal_5f871070557ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365608/normal_5f870971eaed9.pdfIn PDF document text
    • https://site-1042883.mozfiles.com/files/1042883/24080133373.pdfIn PDF document text
    • https://site-1040282.mozfiles.com/files/1040282/79982651332.pdfIn PDF document text
    • https://site-1039737.mozfiles.com/files/1039737/vibiwebiluwezivap.pdfIn PDF document text
    • https://site-1042271.mozfiles.com/files/1042271/nitefekix.pdfIn PDF document text
    • https://site-1048490.mozfiles.com/files/1048490/1513015958.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/0c96c8df-013c-43b9-8789-2f4128076702/66172539184.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f0576ba-086d-4001-9170-80a18891a627/91966561619.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0024972-38e5-4161-a095-0f18992c2cd9/mukatatoguli.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75e0339d-8a54-4620-bdeb-3c2760ea1814/nemuzutosofa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1ad7185-1de8-46e7-9a32-5d27cdf0bf42/82148373705.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/596e641c-4269-4026-83c6-376b841a08a2/bitutuselipagunovofe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb4f32cc-464c-440d-ad71-4edbf28d1bb8/kovuvasid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5752df34-e88d-45c9-812f-6616c45aa28d/5046836993.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_off000076a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76A0 5076 bytes
SHA-256: bcc6009298e07e0292c2243b89221ba1f552d07168f2355b5d46bd2254214f62
font_01_sfnt_off00008816.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8816 10128 bytes
SHA-256: 7ee566ca379d31a32fe993837f96e2219a8ce92ba67263060fe6cfc1a07d4f7f

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