Malicious PDF — malware analysis report

Static analysis result for SHA-256 e456bc7d53d74076…

MALICIOUS

PDF

108.7 KB Created: 2021-03-31 18:40:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 2199cc95a4e9975ee7aeea5eb6b00e6b SHA-1: a781ca02ff14387fdea111a36ed28ab75a0aaa2e SHA-256: e456bc7d53d74076568687df93ecd2e04f1c6a68ff2ffde01755b76dbab29081
104 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, with heuristics indicating an embedded external URI and a potential invoice/payment lure. The primary malicious URL, https://dugedepap.ru/wix?keyword=nine+lives+stealer+pathfinder, is the most significant indicator of compromise. While no scripts were explicitly extracted, the PDF structure and the presence of external links suggest a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://dugedepap.ru/wix?keyword=nine+lives+stealer+pathfinder PDF link annotation
    • https://cdn.sqhk.co/kevamubeminu/gZOZJB7/apache_netbeans_ide_9._0.pdfIn PDF document text
    • https://cdn.sqhk.co/wafudovop/io0gdaQ/wojosegufasikevenatil.pdfIn PDF document text
    • https://cdn.sqhk.co/gadujotev/M3BiiYT/56949330015.pdfIn PDF document text
    • http://fuvirakopu.iblogger.org/barclays_payment_receipt.pdfIn PDF document text
    • http://monufovaxuj.66ghz.com/microsoft_word_calendar_template_march_2019.pdfIn PDF document text
    • https://fudegedetet.weebly.com/uploads/1/3/4/7/134733785/f00d4128fdc4.pdfIn PDF document text
    • http://xiledokujajipo.22web.org/67317710346.pdfIn PDF document text
    • https://cdn.sqhk.co/rerunaropiz/hu9UWrf/ritaz.pdfIn PDF document text
    • https://nowesepi.weebly.com/uploads/1/3/1/1/131164229/1435231.pdfIn PDF document text
    • http://wokimagomabutof.22web.org/2261585601.pdfIn PDF document text
    • https://cdn.sqhk.co/desogepupema/jbiasie/npr_one_app_not_working.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vogasuzifen.rf.gd/what_lights_should_be_on_my_arris_modem.pdfIn PDF document text
    • http://zukolokemegizut.rf.gd/bofedadatudujobo.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/evanescence_origin_album_free.pdfIn PDF document text
    • http://pubodetag.rf.gd/rurojuduw.pdfIn PDF document text
    • http://zarazemudaseri.epizy.com/4liker_pro_app_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/natobi.pdfIn PDF document text
    • http://vajitefafuxuz.epizy.com/archaeology_of_knowledge.pdfIn PDF document text
    • http://tupoxejaka.epizy.com/genufoxitepovil.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/63524975703.pdfIn PDF document text
    • http://zegemipufe.epizy.com/digabojapij.pdfIn PDF document text
    • http://gefafeduvul.epizy.com/pepapojujerofazutun.pdfIn PDF document text
    • https://s3.amazonaws.com/gebukil/how_to_get_alpha_symbol_on_mac_word.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/florida_intersection_design_guide_2016.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_off00016c9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16C9C 5156 bytes
SHA-256: 669b855ae634bac129951591edfb846366e09680269c004b471e65dfea2fc84d
font_01_sfnt_off00017e2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17E2D 11364 bytes
SHA-256: e6cac32ba3a70abe76268dc76259c97fddc9538e9e1916686488c1801c033a6e

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