Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ad061066148158d…

MALICIOUS

PDF

87.2 KB Created: 2021-02-27 05:00:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 2ee2fbb4eb0a9f1187f8cd9f0380cd28 SHA-1: dea8a48c37bb0f1f0e956da042c35d341c1dcee5 SHA-256: 9ad061066148158d314fa2ac0282a469bb4ba8837c9ae07313427996d601c71f
136 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it's a phishing lure, specifically using a 'research paper powerpoint example' theme to entice downloads. The presence of multiple external URLs, including one identified as an SEO redirector, suggests a distribution mechanism for malicious content. Although no scripts were explicitly extracted, the ML classifier and ClamAV detection strongly indicate malicious intent, likely involving the download or redirection to a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://botokaw.ru/strik?utm_term=research+paper+powerpoint+example PDF link annotation
    • http://zawugudumi.getenjoyment.net/has_the_crown_been_approved_by_the_royal_family.pdfIn PDF document text
    • http://dashcamtopbest.com/jetuzojaminudutiv3ci8c.pdfIn PDF document text
    • https://rubexanow.weebly.com/uploads/1/3/5/3/135346757/9972825.pdfIn PDF document text
    • http://kogutojoveso.mywebcommunity.org/kegikifelisuxeretol.pdfIn PDF document text
    • http://zoomita.space/221845748117nj15.pdfIn PDF document text
    • http://paksorond.xyz/45425750169plt30.pdfIn PDF document text
    • https://xigeworimejol.weebly.com/uploads/1/3/1/4/131483719/8647f.pdfIn PDF document text
    • http://dogalijun.scienceontheweb.net/zogarowufadixijimakiv.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwumixe/S1Nu0eF/6890151543.pdfIn PDF document text
    • http://gakagebir.mypressonline.com/flow_chart_template_ppt_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/nomelafu/gjidAn2/guxoduwuvafakokines.pdfIn PDF document text
    • http://100naturals.fun/rejibotudanupidupajerc0j7.pdfIn PDF document text
    • https://bukudemedu.weebly.com/uploads/1/3/1/4/131483547/ligoderil-zikuzan.pdfIn PDF document text
    • http://odemebayisitrafik.com/bizemisebotaveze5c9o1.pdfIn PDF document text
    • http://ita-bio.fun/mugevamisipelomupofizd.pdfIn PDF document text
    • https://weginufakitin.weebly.com/uploads/1/3/4/8/134846544/1882519.pdfIn PDF document text
    • http://biomaniix.website/samsung_washing_machine_repair_servicebqqyx.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/loneminovu/padupalupefusupi.pdfIn PDF document text
    • https://s3.amazonaws.com/kexamoxusinixu/66728884201.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/free_barnaba_new_song.pdfIn PDF document text
    • https://s3.amazonaws.com/redegelesibif/busidixenib.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/34656741622.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000118f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118F8 5340 bytes
SHA-256: 88f16f65a77bf9ae4422ae63ee7025977a24ed7d79fb5fcdb9b3b6e9e34d538d
font_01_sfnt_off00012b10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B10 10724 bytes
SHA-256: c6d22a8d2b1311524a9d3d69734d821977d634269c5338559b9534a12655d1c3

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