Malicious PDF — malware analysis report

Static analysis result for SHA-256 c14c0ddeb24eea33…

MALICIOUS

PDF

83.0 KB Created: 2021-05-19 20:49:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 85029ac72e34b05cf11f5a020393275f SHA-1: 59d69cd9e27f2f7a0fa25b4ed0c3557008e1a2f5 SHA-256: c14c0ddeb24eea3334593792ccfb0288a0050b22e53a4d78ad75f91c4835e83c
194 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV. It contains a link farm strategy, with numerous external links pointing to disposable hosting services, likely to distribute malware or facilitate phishing. The document body, though heavily obfuscated, appears to be a lure related to movie downloads, and the presence of embedded URLs suggests an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://pelibifir.ru/strik?utm_term=dhakad+chhora+3+full+movie+free+download PDF link annotation
    • https://tamejozapana.weebly.com/uploads/1/3/2/8/132814544/4440419.pdfIn PDF document text
    • https://gidigodojuk.weebly.com/uploads/1/3/0/8/130874472/3919029.pdfIn PDF document text
    • https://duketexu.weebly.com/uploads/1/3/4/7/134725944/rovur.pdfIn PDF document text
    • https://xinotojopafexiz.weebly.com/uploads/1/3/4/3/134316842/gavejulavofazex-sagorovu-xijogex-jekifuvedogi.pdfIn PDF document text
    • https://bitoranajezope.weebly.com/uploads/1/3/1/4/131453137/cebdd339d930.pdfIn PDF document text
    • https://pusudojajepi.weebly.com/uploads/1/3/5/3/135322366/denogem-giduda.pdfIn PDF document text
    • https://bexizesuxeneze.weebly.com/uploads/1/3/4/6/134634073/7292935.pdfIn PDF document text
    • https://sitegevom.weebly.com/uploads/1/3/4/6/134664280/21ac5e4be.pdfIn PDF document text
    • https://xexibufit.weebly.com/uploads/1/3/0/7/130739933/zupomolataxikovube.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483331/normal_6003581853c87.pdfIn PDF document text
    • https://gulipuzajetag.weebly.com/uploads/1/3/5/3/135397689/xonojumemilinud-kixenakilupijen-bisivumurik-zejumafaba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501045/normal_5fd10c9d6359a.pdfIn PDF document text
    • https://kaxogirigajel.weebly.com/uploads/1/3/4/6/134611066/5232.pdfIn PDF document text
    • https://sonujeti.weebly.com/uploads/1/3/0/9/130969686/a2dece1e0bb1be5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/2f8c4e41-5c93-4c0e-904e-86b2635a17ec/34182502760.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92ee5232-1829-44ab-a288-b1148cf83e33/poem_books_about_life.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79f66319-f5cf-4642-885d-3bb80c4cac63/mapozijarixofax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d6d3e97-a7b6-45a0-bf6d-c089e1769997/5915090263.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2355466-56ba-4a4c-8f68-2d2f1afa5265/hp_compaq_8000_elite_sff_drivers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79c30735-d12f-4c66-9f78-253a94acb6e6/puwobaru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c907062-b914-4675-ae1e-7ae71a937f17/optiplex_760_audio_driver_windows_10.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15b89bc3-fd3b-4dd1-acb6-1cb64aa5c644/what_does_dr_gundry_say_to_eat_for_breakfast.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f8fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8FE 5264 bytes
SHA-256: d2e3ba7a92c735bf89a65381b2d0b6f8598400b1a7bd8314c41c342e42162d62
font_01_sfnt_off00010ac8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AC8 10956 bytes
SHA-256: bd4b7be3317c388e470bf382d516459a11b528f60d3fd5a287af29b3deee90e0
font_02_sfnt_off00013017.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13017 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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