Malicious PDF — malware analysis report

Static analysis result for SHA-256 e787b372600bccfe…

MALICIOUS

PDF

68.5 KB Created: 2021-03-04 17:53:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 1cb4bd36531bf8c09ad483f2da3ee215 SHA-1: e70a7cb9e38de15ab2bed790d4e9839053a657cb SHA-256: e787b372600bccfe22894f872adb1de3d8d2e02dc3750ba675f526f4474d1736
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document body and embedded URLs suggest a phishing lure, masquerading as realtor information to redirect users to various external websites. The presence of numerous links and disposable hosting points to a link farm designed for distributing malicious content or conducting phishing campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ponafet.ru/wix?keyword=terri+jones+realtor PDF link annotation
    • https://cdn.sqhk.co/jekefebiba/chighie/85885015530.pdfIn PDF document text
    • https://cdn.sqhk.co/niwonosorude/icryjsn/88498671878.pdfIn PDF document text
    • https://cdn.sqhk.co/kutupejotige/7jajcXs/9693417897.pdfIn PDF document text
    • http://form-lnstagramverificationbadge.com/loi_binomiale_terminale_s_formulee56np.pdfIn PDF document text
    • http://trychambre.xyz/57410102340vnjaw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413575/normal_600dc49ee338c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374376/normal_5ffd1cd9b6324.pdfIn PDF document text
    • https://cdn.sqhk.co/susorajin/hgji4ic/11803246216.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451971/normal_5fee66bd518bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490367/normal_60343163d7078.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407102/normal_5feb6035dac65.pdfIn PDF document text
    • http://jadogaxarabu.mygamesonline.org/what_is_the_meaning_of_fish_philosophy.pdfIn PDF document text
    • http://uscreditscore.info/azan_ke_baad_ki_dua_in_hindi836i7.pdfIn PDF document text
    • http://wotidoteked.mywebcommunity.org/regonexepuda.pdfIn PDF document text
    • http://lnstagramsupportinfo.com/wason7bd1o.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zurogukewujot.epizy.com/wegexozugibepezin.pdfIn PDF document text
    • http://jezevenakos.myartsonline.com/34642089270.pdfIn PDF document text
    • http://getetir.epizy.com/49142949052.pdfIn PDF document text
    • http://kemeterotef.rf.gd/vukexudevabe.pdfIn PDF document text
    • http://seroroxunabolu.onlinewebshop.net/classifying_matter_practice_worksheet_answers.pdfIn PDF document text
    • https://e691ad07-92dc-45fa-af10-8929b4045ede.filesusr.com/ugd/87b9a8_2f38560797ff4e1f91e6d630e2c2d752.pdf?index=trueIn PDF document text
    • http://texozokuvet.epizy.com/origin_of_the_word_chloroform.pdfIn PDF document text
    • https://167c2301-eccc-4e3a-a609-38a4f17b9bf8.filesusr.com/ugd/b1dabf_41441284c0ee42c3a0dee80d31ac8ea1.pdf?index=trueIn 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_off0000d1ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1AE 4704 bytes
SHA-256: c03aa723fe3c664c46006393b6f568e8f1ca16d7bc7cb5a388e8b5a5d8890c79
font_01_sfnt_off0000e1b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B7 10308 bytes
SHA-256: 0e034c008daab254e124910095c0ed1e57bddc2f7d6651998292faba556e3081

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