Malicious PDF — malware analysis report

Static analysis result for SHA-256 eab112168cdefa57…

MALICIOUS

PDF

79.0 KB Created: 2021-03-02 23:40:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 5c53454c3f4f8478d5e386f6bd0db810 SHA-1: 9165f49ab5bed7352cac33e96aa78e713b0217fb SHA-256: eab112168cdefa574060e92bf96a19c2ceada17aea82de866d88ea1eedef1a6c
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://zajinet.ru/wix?keyword=an+inconvenient+truth+worksheet+2+answers PDF link annotation
    • http://hardcreditcheck.info/augmented_reality_in_education25ct3.pdfIn PDF document text
    • http://sukujemegamog.22web.org/tiriz.pdfIn PDF document text
    • http://dhl-order.info/deductive_and_inductive_approach_in_researchxt94a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390660/normal_5fe5b9754df4b.pdfIn PDF document text
    • https://cdn.sqhk.co/mobirewin/QWgiBs5/15766509817.pdfIn PDF document text
    • http://goledipe.22web.org/lifetageje.pdfIn PDF document text
    • http://nonretloli.site/8389222040249jdg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374708/normal_5fe294836b75a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471509/normal_5feaf845c64d6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468814/normal_5ff6552555cf4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452154/normal_5fc664bb7dfd7.pdfIn PDF document text
    • http://topstudy.fun/alcohol_and_lactic_acid_fermentation2xv06.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384296/normal_5ff8c303b9de2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jijetebum.epizy.com/wobafoxuxoleninotuwadelu.pdfIn PDF document text
    • http://suzusufiwavel.rf.gd/noxufosovavi.pdfIn PDF document text
    • http://daxararudivoxik.rf.gd/27491352885.pdfIn PDF document text
    • http://pikimavijepe.epizy.com/nalimevuzix.pdfIn PDF document text
    • http://nisuxukiw.epizy.com/33533105544.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_off0000f94b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF94B 5192 bytes
SHA-256: 3822e724f8bd44e5841e3e85f1134ea63317568bc8aff953b414fff2a4e93958
font_01_sfnt_off00010b08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B08 10444 bytes
SHA-256: fbdf4abfb65514a2d7ad483f065e95ba1885e2ce54d8a10ee54e0c80aa9b5753

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