PDF static analysis report

Static analysis result for SHA-256 416aea9615fa859c…

SUSPICIOUS

PDF

42.2 KB Created: 2020-11-08 17:02:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: e5fa1ba3c3cba490d734d9d97dd697db SHA-1: d70238841eff1f39c6322c147426d86d064b502d SHA-256: 416aea9615fa859c9932278bd4bd02c6793f46fe0811e4013fbefdb08b9e0852
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=algebra+1+regents+june+2016+answers+jmap PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369327/normal_5f99e07bd4ca1.pdfIn PDF document text
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/fukavatajosaxa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385413/normal_5f8f7044eb07c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368781/normal_5f8f5c9f24d09.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/2f331c11-fd10-48b3-a390-fefd479bc60e/common_object_list.pdfIn PDF document text
    • https://s3.amazonaws.com/degisapemifa/microwave_internet_connection.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/xewunozavirusajeve.pdfIn PDF document text
    • https://jirovef.files.wordpress.com/2020/11/52786086777.pdfIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/club_penguin_mission_12.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed1ee707-7f94-479b-a261-fa5b2846abe5/rabatog.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_off00006077.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6077 5916 bytes
SHA-256: 962a8a3ed4cc5bd8356272da27e8023bc5305b3bc7436cd26f8bfffef555838f
font_01_sfnt_off0000749d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x749D 11604 bytes
SHA-256: df100c4ceeaa5b76f6cded4f7f7459cdad39e73c11bf02169877dbe6ec67fdf2