Malicious PDF — malware analysis report

Static analysis result for SHA-256 085db65ae63d6581…

MALICIOUS

PDF

70.3 KB Created: 2021-02-18 09:49:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a35b7c471ca63bed8a80f3c5d330c94 SHA-1: 120265fa2d13a95585c65c6f15ca4a0e6c94c0e8 SHA-256: 085db65ae63d65815d49728655ade4044327813625ad9fd31a17f2d9a16cc3f8
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, suggesting the document is designed to trick users into visiting a site that likely hosts phishing content or downloads further malware. Although no scripts were explicitly extracted, the PDF format can embed JavaScript, which is often used for malicious redirection or exploitation.

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://maypoin.ru/strik?utm_term=diary+of+a+wimpy+kid+10+pdf+download
    • http://vashe-zdorovie.xyz/97765318760oyzbq.pdf
    • https://cdn.sqhk.co/woteruzid/RwwiezX/aggiungere_stickers_su_whatsapp.pdf
    • http://merishwheelrecords.com/stephen_king_book_order_to_readqbriv.pdf
    • https://talurepif.weebly.com/uploads/1/3/4/6/134603846/kigijidikik_vipevilodom.pdf
    • http://ejqy.com/18077724250vypoz.pdf
    • http://info-pages.ru/19750692725c52x5.pdf
    • https://cdn.sqhk.co/duwutawuna/cZfhdha/gakopepojukagunu.pdf
    • http://tumbochka.space/sukadouftfo.pdf
    • https://depesusexufajev.weebly.com/uploads/1/3/5/3/135351117/5818405.pdf
    • https://vemenujobife.weebly.com/uploads/1/3/5/3/135399872/jonezorox.pdf
    • http://newberginvestmentproperty.com/bizakojidusatet4mmgp.pdf
    • http://logoped-samara.ru/xezupisah8prv.pdf
    • https://static.s123-cdn-static.com/uploads/4494661/normal_60049bbbe5610.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/rupatojuko/coreldraw_x8_home_and_student_user_guide.pdf
    • https://s3.amazonaws.com/wudibirewuduto/38716691395.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d506.bin
86854de6b50570984bf47b8d5d9c0f42e2f6161da131382209897501479b081d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD506 5460 bytes
font_01_sfnt_off0000e7b0.bin
075332a7f4ac316a154300c8f9ec918bfb5b7875c7db948bfd516092913fc206		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B0 10748 bytes

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