Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fd8b265bbff9f69…

MALICIOUS

PDF

51.8 KB Created: 2020-10-30 17:46:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 09e191bca6fc38d3b5877ddf30487b3c SHA-1: daaf449698a4cfb35efa9b91f151875cc62a7224 SHA-256: 2fd8b265bbff9f69d858ca7b4e3843943337999a49cb81e49c4292890e55160f
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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://ggtraff.ru/123?keyword=puffin+browser+apk+free+download In 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/488930ea-0f1c-4abc-8d07-d4841fdc075d/pixel_gun_3d_hack_no_human_verificat.pdfIn PDF document text
    • https://s3.amazonaws.com/sisaxu/bionote_example_tagalog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9d8ba9c-9b5a-4673-b5cd-e48cea17ecab/gerajozubovesuzijegowose.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/rabemurukad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0675c77-1564-4104-8a4f-22b3046de694/ruvoloxagoketiforab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aabec1ae-d1bf-4708-be94-72795d4a7c18/10577971509.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8cd0794-5097-4856-9429-d852d5a24a51/fadanegiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/227e96b0-4b70-4a26-97fe-c30c87b6e14b/star_wars_storyboards_the_original_trilogy.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/thrombocytopenia_in_liver_disease.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/172a9156-9aa6-48ab-872e-6cf127d37e95/xawofoparawadoxonujaxo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/caa19728-3f36-4761-bd46-8efbcc707429/24160211390.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e8a657a-faaf-4aaa-acb3-e44a9b58a0bf/ram_dass_sei_jetzt_hier.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/11038749351.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d05b0ea5-1f77-4318-ab08-955fade5ff79/furajiga.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006562.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6562 5332 bytes
SHA-256: 389f58e18860b8becd1448c6fc7a833a7a6a8adeedd41f267a6b49fd3c021bb8
font_01_sfnt_off0000779a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x779A 3544 bytes
SHA-256: d1878b4518104f9afca73b3a7b965043d0bc2afbe1b23d8c4785c35bc7c98d57
font_02_sfnt_off00008612.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8612 11252 bytes
SHA-256: 35a7ef4cf92de6fe369651d8545846c8087cb46da3b4e7199f2390903b7eb7d3
font_03_sfnt_off0000abf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABF5 16132 bytes
SHA-256: 895f66822cee8096b629ba52ebdbe333aa959cf625638ac8af8884b25f69792f

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