Malicious PDF — malware analysis report

Static analysis result for SHA-256 d336cc2ea79f7114…

MALICIOUS

PDF

73.2 KB Created: 2021-02-20 18:49:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 68ca35c4a0a2de31135ca17251f4e063 SHA-1: a2d26146a88d79773e4ada55d681fb2c2deb2860 SHA-256: d336cc2ea79f71149067fee8d5b436c9ba3bc1a4298389013e97e972d7407996
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wix?keyword=translucent+paint+for+plastic PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4490128/normal_5fc6808d9189f.pdfIn PDF document text
    • http://alkostore.xyz/why_does_my_hp_printer_keep_saying_paper_jamyo2s4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421061/normal_60018ecf6de6a.pdfIn PDF document text
    • https://lemorixumo.weebly.com/uploads/1/3/4/7/134748879/e9ec820afd.pdfIn PDF document text
    • https://fukimeremunosav.weebly.com/uploads/1/3/1/3/131379236/8353170.pdfIn PDF document text
    • https://kesoxebexug.weebly.com/uploads/1/3/2/6/132681937/tekawujove_livesagasamupe_jomoxibol_fasoxifima.pdfIn PDF document text
    • https://gebobofivogaxe.weebly.com/uploads/1/3/5/3/135308574/gewikexeruwizemoxa.pdfIn PDF document text
    • https://vubenazago.weebly.com/uploads/1/3/4/3/134357699/5ea205.pdfIn PDF document text
    • http://besemafobekilir.22web.org/sugulimu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471704/normal_5fdfc5924a450.pdfIn PDF document text
    • https://pufoputinagof.weebly.com/uploads/1/3/4/2/134234879/953462.pdfIn PDF document text
    • https://tedogiji.weebly.com/uploads/1/3/0/7/130775371/gikanijoxozoxapivegi.pdfIn PDF document text
    • http://aromaita.space/52639079671pkito.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379851/normal_600a0e615d22c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384484/normal_5fdb789919c4d.pdfIn PDF document text
    • https://tiwabegi.weebly.com/uploads/1/3/0/8/130874513/266a01ed.pdfIn PDF document text
    • http://triple-doska5.club/blood_magic_support_poeckp4s.pdfIn PDF document text
    • http://nudistoff.club/4841473815376wlq.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ketanuviz.epizy.com/30785798484.pdfIn PDF document text
    • http://jexuzutipeku.epizy.com/kizudofumogoxatezi.pdfIn PDF document text
    • http://zimemotom.rf.gd/ponemixe.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_off0000e3b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3B5 4956 bytes
SHA-256: e4f4cd734a129a941bf7f97bfd0777fd9d984d675d4797cbe47e44fe9356e32b
font_01_sfnt_off0000f49c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF49C 10204 bytes
SHA-256: 2c32ac6a7f7a775d6387e478ea715d7aeb7768ec6b2ee7ee86fee60fe660227a

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