Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c493361b9422931…

MALICIOUS

PDF

41.8 KB Created: 2020-03-22 07:24:29 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 02c8c211cee7e498ac5f755ea0657926 SHA-1: d0cd8ce0bf1e1fc984f2771f9d6a13fb714b3f04 SHA-256: 9c493361b9422931a1cbf01ef782b4d946eac183de3cd460d4e54ed21dd69758
96 Risk Score

Malware Insights

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

This PDF document exhibits characteristics of a link farm, with a large number of embedded external URLs pointing to other PDF files. The document body, though partially corrupted, contains text related to 'Tale of Genji chapter 18 summary' and the wkhtmltopdf generator, suggesting a deceptive lure. The primary intent appears to be directing users to a network of potentially malicious or spam-related websites.

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://dylanwyke.com/uploads/1/3/0/7/130740609/130740609.html#tale+of+genji+chapter+18+summary PDF link annotation
    • http://myqmunity.com/uploads/1/3/0/5/130589228/vufevuwakoka_fofife_fewez.pdfIn PDF document text
    • http://pgifranchisee.papaginospizza.com/uploads/1/3/0/3/130313741/1589363.pdfIn PDF document text
    • http://srilankanprivatedriver.com/uploads/1/3/0/2/130288317/vexebinaxunen-rujamunazivot.pdfIn PDF document text
    • http://pumiquat.com/uploads/1/3/0/3/130313613/fuvixapu.pdfIn PDF document text
    • http://dpcontainers.net/uploads/1/3/0/6/130604693/5358749.pdfIn PDF document text
    • http://stpetedogwalking.com/uploads/1/3/0/4/130483510/cdd7bd9eb.pdfIn PDF document text
    • http://matthewbrooke.com/uploads/1/3/0/5/130539849/xozoxonisajusiga.pdfIn PDF document text
    • http://theapexbasketballtraining.com/uploads/1/3/0/6/130620700/7620513.pdfIn PDF document text
    • http://vps4-boss.pleasingfood.com/uploads/1/3/0/5/130590030/tematojox.pdfIn PDF document text
    • http://petitlapinbyjo.com/uploads/1/3/0/7/130739740/c319a58bd1e53e9.pdfIn PDF document text
    • http://fansounds.com/uploads/1/3/0/6/130604448/tesofudizi-lamamubolunit-kexajudawelav-girekifupimi.pdfIn PDF document text
    • http://coolshoes.biz/uploads/1/3/0/7/130775729/mixikosepanele-jogamudiduva.pdfIn PDF document text
    • http://greenfootenergysolutions.com/uploads/1/3/0/2/130272557/6514128.pdfIn PDF document text
    • http://www.farnhamflashfestival.org/uploads/1/3/0/4/130478648/8537614.pdfIn PDF document text
    • http://urbannashville.com/uploads/1/3/0/3/130313390/rilidabudagefon.pdfIn PDF document text
    • http://carecdc.net/uploads/1/3/0/4/130488399/27d946d24.pdfIn PDF document text
    • http://rinjaniindah.com/uploads/1/3/0/2/130272582/4285504.pdfIn PDF document text
    • http://bentleyhomehealth.com/uploads/1/3/0/5/130541950/2497179.pdfIn PDF document text
    • http://elaineyuki.com/uploads/1/3/0/8/130813077/59ec6d1.pdfIn PDF document text
    • http://citymarketescaperoom.com/uploads/1/3/0/6/130620792/3348151.pdfIn PDF document text
    • http://weblacarte.com/uploads/1/3/0/4/130435717/d8901.pdfIn PDF document text
    • http://nevada.airwaveonline.com/uploads/1/3/0/2/130287537/kerovimorifupezigo.pdfIn PDF document text
    • http://www.medowiepublicschool.com/uploads/1/3/1/1/131163838/9855444.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_off00007a11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A11 7640 bytes
SHA-256: 468202a5beb869f26013ca93e569f19a9800d187abc70b6a913dbc5a7026d974

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