Malicious PDF — malware analysis report

Static analysis result for SHA-256 3697a2745ea94cd6…

MALICIOUS

PDF

79.5 KB Created: 2021-03-19 17:30:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 052e233d3d2567d7c52096091e1f4e02 SHA-1: add77bf9bcc07a05f16b7921a54bbbbfedc8213f SHA-256: 3697a2745ea94cd615b89decf5de01acf7adb9c812fca1ca6acb0e4698d1d67f
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by ClamAV as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains text related to a product diagram, suggesting a lure to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://resalured.ru/wix?keyword=pentair+pool+filter+parts+diagram PDF link annotation
    • http://xumumat.22web.org/mivekefi.pdfIn PDF document text
    • https://tovozilulu.weebly.com/uploads/1/3/0/8/130873983/406964.pdfIn PDF document text
    • https://waseralubireg.weebly.com/uploads/1/3/4/6/134622629/4173573.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445115/normal_60221690524db.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410462/normal_6001e5abc306b.pdfIn PDF document text
    • http://xawamiwupajev.mygamesonline.org/36110936995.pdfIn PDF document text
    • https://dewajijivixire.weebly.com/uploads/1/3/4/6/134638152/gonetifo-gagolifotiwizo-gaxumipago.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455197/normal_5fde34f78293f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466675/normal_6006d4448803f.pdfIn PDF document text
    • http://keribek.22web.org/e_aadhaar_is_password_protected.pdfIn PDF document text
    • http://xuzerujagojagip.scienceontheweb.net/ziwekeruzoxotewozegi.pdfIn PDF document text
    • http://giritulavat.iblogger.org/36879840204.pdfIn PDF document text
    • https://bivofeneduwid.weebly.com/uploads/1/3/1/1/131163561/jugefoxudunaligof.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475999/normal_603d6f8528030.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://s3.amazonaws.com/tozaduliwubega/template_receipt_of_payment_letter.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddec4c07-54d2-4645-a7e0-49c8582745af/brother_mfc-j615w_printer_driver.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/further_mathematics_textbook_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/fonex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62f3770c-5285-4512-8a0f-ca6d8b40450c/racial_formation_in_the_united_states.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/binomial_expansion_negative_power_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de7df6ca-ed94-4da1-859c-1f51726507d6/ruxuxabunine.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e86302f-f18c-4dfc-b7bd-a9d65c962113/halliday_fundamentals_of_physics_11e_solutions.pdfIn PDF document text
    • http://ziwilud.epizy.com/factor_groups_abstract_algebra.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED2A 5148 bytes
SHA-256: c4346b4893e30daf65eec416a64f472e37b16a62d0747de6f03fc1b1b547d66c
font_01_sfnt_off0000fe8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE8D 10556 bytes
SHA-256: 0327d372350b65df32ea19cc6f7df5c5620f7a919d2819833a6dc05d1d31b10f
font_02_sfnt_off00012269.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12269 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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