Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccda92d035f096b6…

MALICIOUS

PDF

89.5 KB Created: 2021-05-18 15:31:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: b980476cbe47ca63b91629106368ddf6 SHA-1: 9aa9959acc36d11b149e5f27623e12690bf34ffe SHA-256: ccda92d035f096b6bc2a612789cb1f59cc8c894471fa444669763b05aa21a568
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were directly extracted, the PDF structure and embedded URI heuristic point to a social engineering attack aiming to trick users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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/strik?utm_term=race+to+witch+mountain+2009+hindi+dubbed+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380859/normal_6027df8fe16fb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405184/normal_60236bf81dda7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425514/normal_6045f7bc38294.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/6acb8a8d-e6bd-4118-9277-9ab841e0adcd/how_to_write_alpha_symbol_in_latex.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxuxemu/jodimadaronagotifekob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a28dec2e-a878-401d-83cd-d107e4eb4a1d/budavipizalapokudaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2549ec22-c646-4ec9-86c4-73fff4f97f21/what_are_the_five_input_device.pdfIn PDF document text
    • http://wuwexufituvefug.rf.gd/getaduzadodavulugib.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/kidde_nighthawk_beeping_end.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/what_does_a_husky_pitbull_mix_look_like.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/school_graduation_certificates_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/3282819349.pdfIn PDF document text
    • https://s3.amazonaws.com/ligole/45763147089.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12fca5eb-018a-43a9-898c-2facddb21212/hp_officejet_pro_8600_not_printing_color.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/c_b_strike_episode_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/international_business_management_notes.pdfIn PDF document text
    • http://fapizof.rf.gd/97873225696.pdfIn PDF document text
    • https://s3.amazonaws.com/bezegoluzose/bafajabiwupexif.pdfIn PDF document text
    • http://ninesunugata.epizy.com/what_is_the_theme_of_the_book_the_secret_life_of_bees.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e58a7497-6725-4356-9dc3-fca38acca6d0/19325010274.pdfIn PDF document text
    • http://zuwutif.rf.gd/forex_technical_analysis_tutorial.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5ee6b4f-2ade-4c3d-99e1-d1f35469752c/87723491844.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f29108b2-35b2-4478-baeb-b1fa6b581de8/37119185369.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f70d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF70D 5456 bytes
SHA-256: 37a2fb3c22b8196c1408c17929f09bd02eff300bcc1832d5f2e5bb2973f758b9
font_01_sfnt_off00010982.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10982 11960 bytes
SHA-256: b8a8b2def20bb72f94c14e2340c10e2f97ad01089e85c60b6e6e8e3a7f05bc59
font_02_sfnt_off0001329d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1329D 16060 bytes
SHA-256: c15bc33179a7bc30c35519528fb85484590a3f4fb262bd25a5702779b0ef491f
font_03_sfnt_off00014735.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14735 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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