Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5e128df6210c84f…

MALICIOUS

PDF

38.5 KB Created: 2020-10-29 22:53:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: de25eea9deb34e395c5d8b3483feae70 SHA-1: d12e289211e4fe6625e3aaf6b4116f8821f49f76 SHA-256: e5e128df6210c84f6029acafc806c01c6c3d29b4e2b911b9110a6972eb237a7c
94 Risk Score

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://cctraff.ru/aws?keyword=super+size+me+video+worksheet+answer+key In PDF document text
    • https://cdn-cms.f-static.net/uploads/4388050/normal_5f9892de7af0a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392867/normal_5f956c854ab00.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://s3.amazonaws.com/luramamelolem/types_of_weathering_in_geography.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/edit_to_word_online_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wavunot/quantitative_aptitude_shortcut_tricks.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/children_s_english_alphabet_books.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/595e198b-8464-4951-86db-a8d839a24f8c/39469042000.pdfIn PDF document text
    • https://s3.amazonaws.com/jijumupade/homens_de_orao_hernandes_dias_lopes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ba5ac00-50d6-45e3-b21b-8d34d6386c01/severosexujesizowojopi.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/vaxotexajevekaradubabavol.pdfIn PDF document text
    • https://s3.amazonaws.com/nalifij/apush_review_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7cf215aa-9b3b-44d4-9ba9-22ec0ba55dcc/panasonic_amg8833_datasheet.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_off0000498c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x498C 5520 bytes
SHA-256: cdbad6afe4722472436114f63a3d695d14cbc17c4149a94826d1bc74ea824954
font_01_sfnt_off00005c48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C48 10548 bytes
SHA-256: e0810f93397bf8d727ababe47075d2566fffa747af8e51c6f439733780116c47
font_02_sfnt_off00007f5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F5A 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c