Malicious PDF — malware analysis report

Static analysis result for SHA-256 c47ad01fe86861e5…

MALICIOUS

PDF

65.5 KB Created: 2020-11-19 02:23:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: e87657465c33643b2976abfcdd0dc536 SHA-1: 1c6371fea627f30358f91346e1a6d8bf432eb32f SHA-256: c47ad01fe86861e5d9d287d022b1067bdda0af4f196b597110e1008153161ba3
196 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous external links, identified as a 'PDF_SEO_LINK_FARM', and a primary URL pointing to a potential phishing lure related to 'Disney infinity web code generator'. ClamAV detection and ML classification strongly indicate malicious intent, likely for phishing or scamming purposes. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

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.
  • 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://trafffe.ru/strik?utm_term=disney+infinity+web+code+generator PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4501364/normal_5fb27d8ee2e82.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374178/normal_5f9fb5bb29c84.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382418/normal_5fa5079918370.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377642/normal_5f8a6df7e9e3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394066/normal_5f9bb18f922c3.pdfIn PDF document text
    • https://nalatuzub.weebly.com/uploads/1/3/4/3/134324595/wuxukizomupesadulep.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368752/normal_5f9ce37392f68.pdfIn PDF document text
    • https://jikisotawojagug.weebly.com/uploads/1/3/4/3/134393354/rosufemul_fojil.pdfIn PDF document text
    • https://suganolorifumu.weebly.com/uploads/1/3/0/8/130814011/gubikagov.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384030/normal_5f9fde1a8e514.pdfIn PDF document text
    • https://zovezeko.weebly.com/uploads/1/3/4/6/134697242/18580c630.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460981/normal_5fb532099e7c8.pdfIn PDF document text
    • https://gamuzajebi.weebly.com/uploads/1/3/4/4/134481120/3408834.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000c300.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC300 5492 bytes
SHA-256: 5df6ce958b44896b7083f68ee90f90afc0b0aa64b22c4317104dd7622e483673
font_01_sfnt_off0000d5db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5DB 10360 bytes
SHA-256: 3c576fc64570fb51185a78f2fc98209a81e2acf2b05eabf4e719f3afda9fa92a

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