Malicious PDF — malware analysis report

Static analysis result for SHA-256 06337915549d729e…

MALICIOUS

PDF

64.1 KB Created: 2021-02-24 00:33:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 60d6357d0a2d289134160107831224d4 SHA-1: 91d7d86ea1becee16d253d9dba166e9d5549e8bd SHA-256: 06337915549d729e1a90fdcf31d6e768e4c7373c25ef48c339dac82d084dc4ef
186 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many hosted on disposable domains, indicating a link farm or SEO spamming operation. The document body, though heavily obfuscated, appears to be a lure related to movie showtimes. The presence of ClamAV and ML heuristic firings strongly suggests malicious intent, likely for phishing or distributing further malware via the link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://maypoin.ru/wix?keyword=maya+cinema+pittsburg+ca+showtimes PDF link annotation
    • https://gadufekovofu.weebly.com/uploads/1/3/4/7/134764592/zumevuvojazopug.pdfIn PDF document text
    • http://covidcapsule.world/44282839582gr5zc.pdfIn PDF document text
    • https://mavakonagidesa.weebly.com/uploads/1/3/1/4/131483278/pifemedurerem-wafukunupewijo-jesofago-mejoselowu.pdfIn PDF document text
    • http://libertinemodels.com/ejemplos_de_muestra_poblacion_e_individuozakvc.pdfIn PDF document text
    • https://cdn.sqhk.co/rurokusulos/jdMyhdr/space_invaders_movie_trailer_1990.pdfIn PDF document text
    • https://wisamifogafize.weebly.com/uploads/1/3/4/5/134598642/givalexijosum.pdfIn PDF document text
    • https://libexezelidod.weebly.com/uploads/1/3/1/4/131454359/winotevul-rosaluwikubik-datuka.pdfIn PDF document text
    • http://tedusoxunola.22web.org/varopumagaxapebesik.pdfIn PDF document text
    • https://kufudazasa.weebly.com/uploads/1/3/4/6/134626120/14e59.pdfIn PDF document text
    • http://deemonatrafik.xyz/19275695954petwi.pdfIn PDF document text
    • https://fopozawiluni.weebly.com/uploads/1/3/4/3/134383369/bamozujira-zomuwolo-matujevopu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gizenelik.rf.gd/glyphicons_bootstrap_3.pdfIn PDF document text
    • http://zozevep.epizy.com/dazofufulezuwefofoxa.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_off0000bcba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCBA 5652 bytes
SHA-256: 7d6964fd73350bf2ed166904fbb3f88798186a3f8237502cb2500b19f41ef15c
font_01_sfnt_off0000cfe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFE8 10608 bytes
SHA-256: 3935601c419015c0c8a4fc82d00613968f893d0cca6ec3ec18b70856a69a2d65

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