Malicious PDF — malware analysis report

Static analysis result for SHA-256 d27a570cec56b391…

MALICIOUS

PDF

41.7 KB Created: 2020-03-29 09:08:49 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 726250fa4d6df50b7c30708d78030208 SHA-1: a435a544947fea2caaea4e24d0696dae248e0eb3 SHA-256: d27a570cec56b3919897885b65bdb0af4196af2b9cd52e2d64bdab573dd6e16d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a large number of external links, a technique often used for SEO spam or to redirect users to malicious sites. The document body contains garbled text and what appears to be metadata from the wkhtmltopdf tool, suggesting it was programmatically generated. No scripts were extracted from this sample. The primary attack pattern involves leveraging a link farm to distribute potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jessica-and-jaso-1.rominastiebenphotography.com/uploads/1/3/0/6/130620892/130620892.html#distribucion+de+frecuencia+agrupados+en+intervalos+de+clase PDF link annotation
    • http://minnieripertonfund.org/uploads/1/3/0/7/130775294/5378433.pdfIn PDF document text
    • http://becomeagoldstardirector.com/uploads/1/3/0/5/130550854/325b1d38.pdfIn PDF document text
    • http://fresh-beginning.com/uploads/1/3/0/7/130739105/8429776.pdfIn PDF document text
    • http://holiday-photographers.com/uploads/1/3/0/4/130483167/2680947.pdfIn PDF document text
    • http://lgwt.us/uploads/1/3/0/5/130551387/pewilige.pdfIn PDF document text
    • http://northstargateway.com/uploads/1/3/0/6/130639526/pogovajowilabivul.pdfIn PDF document text
    • http://thegamepros.net/uploads/1/3/0/6/130604056/6c8fe.pdfIn PDF document text
    • http://itssewwoolly.com/uploads/1/3/0/5/130589381/mafokelejas_jiluvogul.pdfIn PDF document text
    • http://www.melroseplace-guestroomspotchefstroom.co.za/uploads/1/3/0/5/130551641/lopuwojuvefaniwemaj.pdfIn PDF document text
    • http://artofhostingns.ca/uploads/1/3/0/8/130873869/2003499.pdfIn PDF document text
    • http://mta-sts.mail.runnerstoke.com/uploads/1/3/0/2/130289662/0c4730543f6.pdfIn PDF document text
    • http://private-label.training/uploads/1/3/0/6/130639853/xevexu.pdfIn PDF document text
    • http://hostmaster.iwalkedtojerusalem.com/uploads/1/3/0/6/130639481/pakezimu.pdfIn PDF document text
    • http://bcreativedesignandservices.com/uploads/1/3/0/6/130639251/bf3804.pdfIn PDF document text
    • http://kristenyee.com/uploads/1/3/0/6/130620985/6004954.pdfIn PDF document text
    • http://mta-sts.mail.theatreforchange.org/uploads/1/3/0/2/130289294/63e7c4e60ddd0.pdfIn PDF document text
    • http://jcardinahl.com/uploads/1/3/1/1/131164293/misivemajezutewo.pdfIn PDF document text
    • http://dancewithqi.com/uploads/1/3/0/5/130588809/devode_larudipewibez.pdfIn PDF document text
    • http://lynnmmelfi.com/uploads/1/3/0/5/130588894/dewurerapa.pdfIn PDF document text
    • http://lukapendes.com/uploads/1/3/0/5/130590143/575663.pdfIn PDF document text
    • http://stevemossberg.com/uploads/1/3/0/8/130874210/40b64b3efccb9e4.pdfIn PDF document text
    • http://dlitefullgifts.com/uploads/1/3/0/6/130639093/5684655.pdfIn PDF document text
    • http://madcarn.com/uploads/1/3/0/4/130489019/bf322.pdfIn PDF document text
    • http://lifeofcshock.com/uploads/1/3/0/7/130740514/3548780.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 5

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_off000077c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77C2 8440 bytes
SHA-256: a149037d878fca3a21df513d00afefedfa024aeba5327ea4a072f2900b9a0127

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