Malicious PDF — malware analysis report

Static analysis result for SHA-256 080566df584dd251…

MALICIOUS

PDF

77.7 KB Created: 2021-02-24 05:41:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 97a4d006d7234bb56172ae753355382e SHA-1: c407d41d27a6678051c1de6ca6e9e680bed84062 SHA-256: 080566df584dd2518ec8e5af41783869b78697582ca3e714c726ef1f54955ff6
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing or malware distribution lure. It contains a mass of external links, including one pointing to 'https://leonvi.ru/123?utm_term=craftsman+yts3000+manual', disguised as a Craftsman YTS3000 manual. The presence of numerous PDF links suggests an attempt to create a link farm or distribute further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://leonvi.ru/123?utm_term=craftsman+yts3000+manual PDF link annotation
    • https://cdn.sqhk.co/detaludolef/jifjcBo/mr_scruff_ninja_tuna_download.pdfIn PDF document text
    • https://dudakodut.weebly.com/uploads/1/3/4/4/134497067/7344334.pdfIn PDF document text
    • https://guxisawupejova.weebly.com/uploads/1/3/0/8/130814058/sasibiwoxuwira_zozesijuwuf_sexefemepatir_parevavujepizuf.pdfIn PDF document text
    • http://vemasujananexu.22web.org/tebedelosoka.pdfIn PDF document text
    • https://webenewosa.weebly.com/uploads/1/3/1/4/131409170/a26348e2ce1544.pdfIn PDF document text
    • https://maxolesaso.weebly.com/uploads/1/3/0/7/130776327/lujijo_rowakosuloziro_lejajafinowudat_rosovagewotifen.pdfIn PDF document text
    • https://foxakiletomuxo.weebly.com/uploads/1/3/4/0/134012751/guginajesumed-bebofidabobisig-tumujujedadini-kudosuw.pdfIn PDF document text
    • https://xuduburuk.weebly.com/uploads/1/3/4/3/134323667/ximoravufoxov.pdfIn PDF document text
    • https://kimimidinom.weebly.com/uploads/1/3/1/4/131453749/7786984.pdfIn PDF document text
    • https://cdn.sqhk.co/metexemoraga/gjnIB3O/defuzaxufubitebati.pdfIn PDF document text
    • https://votozugilom.weebly.com/uploads/1/3/1/0/131071295/1861614.pdfIn PDF document text
    • https://manomukujoputu.weebly.com/uploads/1/3/4/5/134517900/4bc90801c05679.pdfIn PDF document text
    • https://cdn.sqhk.co/bijukipuj/geTiiia/35928465411.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/bovenotojitowe/90726431896.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/92897992946.pdfIn PDF document text
    • https://s3.amazonaws.com/bitajemisajoz/jabariya_jodi_full_movie_bolly4u.pdfIn PDF document text
    • https://s3.amazonaws.com/jenisozazewubo/ammoniak_kemiska_formel.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/safety_1st_infant_car_seat_manual.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_off0000f17a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF17A 5228 bytes
SHA-256: 21011dd3a3134a517a3eb31643e6950953aca208eac8132e784a544740d717be
font_01_sfnt_off0001032e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1032E 11304 bytes
SHA-256: f2682d2b9c5b81257be4347e7b4c5f752e578bea2eefab0b3479aec4f8591d66

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