Malicious PDF — malware analysis report

Static analysis result for SHA-256 6938648ea73ca04b…

MALICIOUS

PDF

74.8 KB Created: 2021-05-28 20:49:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: e118b712f0d486d9cea7619c5c23b19c SHA-1: 2b3f924c75fbca4ec0f17f0eb1ab2fe835187457 SHA-256: 6938648ea73ca04bc553a260516a3cc3db55386629d2a2919882c717b366b446
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. The document body and heuristics indicate it uses an image lure to redirect users to a URL that promises a game download, likely a phishing or malware distribution attempt. No scripts were extracted, but the embedded URL is a primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/strik?utm_term=download+game+ppsspp+gta+san+andreas+mod+apk PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4380858/normal_5fedd265eb575.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415768/normal_6026ffdf9fac6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468255/normal_5ff3a7f11b79a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465269/normal_600bcdc18ac5c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444117/normal_603e59e8e98d7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470980/normal_5fee68197c804.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367277/normal_5ff2d6aec5bdc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413865/normal_60601981ba134.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/c57fc636-7a24-4ce2-a3dc-20130bc5354c/47676089720.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95e6cb52-05c2-48b3-bc7f-a94b82997f64/resumen_por_capitulos_de_el_ensayo_sobre_la_ceguera.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/967b1cb0-89dc-4e27-87eb-c1455e92bbef/5425426564.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e443a0f-379c-4892-8124-208c2b3cc389/bob_revolution_double_stroller_orange.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dfdc3399-023f-43ae-b259-f48f9d393243/books_like_practicing_the_presence_of_god.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9de8589-6ff6-43db-93cd-077382d6a1c6/39686136119.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c043fef-a701-4044-ba3c-1fc48bb86b26/2020_toyota_tacoma_speaker_wiring_diagram.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f2a59a8-ab25-4106-9fb6-a778f82da2f6/97876053905.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8ee1227-7ced-466c-a4a6-10d74e48409e/yoga_anatomy_training_uk.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_off0000e606.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE606 5436 bytes
SHA-256: a625dad54cbea4020863317d67ba158c391fdfd706c86804f731688244e78e17
font_01_sfnt_off0000f88b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF88B 11004 bytes
SHA-256: 9acc659561d671b28af99e622eac4bad7ac767bb9af59cd2bda505f19de86d5d

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