PDF static analysis report

Static analysis result for SHA-256 357c8b77c6f14313…

SUSPICIOUS

PDF

41.4 KB Created: 2020-11-09 13:17:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 550d315775048b061f87e401071fadbc SHA-1: 24e1bbd4be928d084fc635df7ac7f16663b4d841 SHA-256: 357c8b77c6f143134cb6bdab251e267303ff7c1367e3a806b936199061b462c0
36 Risk Score

Malware Insights

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

This PDF document was flagged as suspicious by an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffe.ru/123?keyword=fortnite+download+pc+apkpure PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368953/normal_5fa8f0801c71a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383445/normal_5f94a6b867e2b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461211/normal_5fa60c6d630b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382966/normal_5f9985f6a3a1e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388038/normal_5f9478d47aa21.pdfIn PDF document text
    • https://nusosujorogu.weebly.com/uploads/1/3/4/5/134589145/3792771.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414679/normal_5fa37e2ac5c76.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rodigapigeta/14374810642.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/cutting_and_tailoring_books_in_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/jasadavebaga/words_with_pedis.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/75740798077.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/82663393364.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/nugevonuves.pdfIn PDF document text
    • https://s3.amazonaws.com/gumagabu/nys_earth_science_reference_table_spanish.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_off000063b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B8 5000 bytes
SHA-256: e79a8b76292c0d90c7232c6c88c47954dc859d2436919db3992e0cf5be667906
font_01_sfnt_off000074e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74E3 10392 bytes
SHA-256: 8297b3ec5bc5454acf5e5d37f360b9fd06b93a0a24a8cf1fd6f6cfecd845a7f5