Malicious PDF — malware analysis report

Static analysis result for SHA-256 48177df54da0bc16…

MALICIOUS

PDF

97.4 KB Created: 2021-02-27 01:35:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: de6ef1a75d8d091c04823628c0683445 SHA-1: ffec556c96e2ae1bf040a65b55bc26e79c0e8e9f SHA-256: 48177df54da0bc163145ac403ea30e026ec1c55041f63acedc8a5a05cf614e38
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, and is flagged by ML classifiers and ClamAV as malicious. The presence of external URIs and a link farm heuristic suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and URL patterns are indicative of a malicious document designed to redirect users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ponafet.ru/aws?utm_term=cisco+catalyst+2950+series+datasheet PDF link annotation
    • http://checkmycredit.info/tokasesufohiii8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371010/normal_5fffee94d1713.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385880/normal_60396e574f024.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419851/normal_60247a673ae4e.pdfIn PDF document text
    • http://gufutaca5.xyz/asme_y14._5._1mrh53e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388181/normal_600d4e55ecd09.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425768/normal_5fdceb89416e3.pdfIn PDF document text
    • https://dawemewi.weebly.com/uploads/1/3/4/7/134747996/jibawapipororuzetori.pdfIn PDF document text
    • http://good-production17.site/wuzazo7495g.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485442/normal_5fff386ac4f98.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pumumiz.epizy.com/39587232451.pdfIn PDF document text
    • http://rutuber.rf.gd/kawasaki_bayou_250_oil_weight.pdfIn PDF document text
    • https://s3.amazonaws.com/lefemijip/adobe_after_effects_cs6_filehippo.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_off00013e7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E7F 5588 bytes
SHA-256: 324860c7c81f215f664f4ebac4db5426d7479fecc7e5fc918148ba70d1632d1b
font_01_sfnt_off0001517c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1517C 11492 bytes
SHA-256: 61d51d9e4d532ecefa6929d920b47bb5e8fc74db06a35e96a55e6478f755f3f3

Open this report in the interactive analyzer, or submit your own file for analysis.