PDF static analysis report

Static analysis result for SHA-256 160ecb5b44d224ae…

SUSPICIOUS

PDF

30.5 KB Created: 2020-04-11 10:39:40 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-07
MD5: 0f55d931dd897d6f89c14ef963d5f554 SHA-1: 2c4b077aff61fbbf4ac50d24d07f8a509508a3b2 SHA-256: 160ecb5b44d224aec3e30a99d2d182baa691a82c811c1db3fbb3dc985952c914
36 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one specifically highlighted in the document body text. The ML classifier strongly indicates maliciousness, suggesting the embedded URLs are intended to lead the user to a malicious site. No scripts were extracted, but the presence of external URIs and the ML detection point towards a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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 http://reboundat.com/uploads/1/3/0/5/130551543/130551543.html#dod+7000.+14r+volume+7a PDF link annotation
    • http://my.trssociety.ca/uploads/1/3/0/4/130479171/8025815.pdfIn PDF document text
    • http://arwuso.com/uploads/1/3/0/6/130620972/fimokiba.pdfIn PDF document text
    • http://kathysweeney.com/uploads/1/3/0/4/130476104/mafaze.pdfIn PDF document text
    • http://mostlyhappyalittlebitsassy.com/uploads/1/3/1/4/131454496/xilifevekomowuzaf.pdfIn PDF document text
    • http://masoncitychristian.org/uploads/1/3/0/5/130589391/2201230.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

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F66 7692 bytes
SHA-256: d16cfca5b610ce132172a5c0244b497596a6a7ff5ddb6a0adaeffdcee51df767

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