PDF static analysis report

Static analysis result for SHA-256 bebd655144527ca4…

SUSPICIOUS

PDF

279.3 KB Created: 2020-11-07 07:16:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 61c15129e90c19d52324671796ea210f SHA-1: 675fbea8adf2d3df6844da0dca89d514ef106986 SHA-256: bebd655144527ca4cdffbaae14d92d887a110d79dd1ca6a18b8410d9804581fc
44 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. It uses an urgency-based lure. 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 0.9995

Heuristics 4

  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://traffnew.ru/123?keyword=chapter+22+the+ordeal+of+reconstruction PDF link annotation
    • https://modudipagif.weebly.com/uploads/1/3/4/6/134688888/72e76eb0bc7f475.pdfIn PDF document text
    • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/454ede61a.pdfIn PDF document text
    • https://xafarapodekil.weebly.com/uploads/1/3/4/3/134369556/rizavibelexepifawof.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/wilugugo/lilapudubaratowepoxi.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/wild_with_reese_witherspoon.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/ielts_reading_passage_3.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/calibration_standards_iso_17025.pdfIn PDF document text
    • https://s3.amazonaws.com/golepe/3d_ripper_dx_11.pdfIn PDF document text
    • https://rezekine.files.wordpress.com/2020/11/tatojesanawav.pdfIn PDF document text
    • https://rakidate.files.wordpress.com/2020/11/83823832544.pdfIn PDF document text
    • https://lodoxepal.files.wordpress.com/2020/11/vibinofa.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_off00041685.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41685 5280 bytes
SHA-256: 29120dd970c298df323643d09d0941bf5e0d0690d951975f8c9284b3c4542e4f
font_01_sfnt_off00042872.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42872 11432 bytes
SHA-256: 9dbd5a57a7e05d79cb622ea7d88498115bf1fd220a91c417be0427f3ea50abb1