Malicious PDF — malware analysis report

Static analysis result for SHA-256 3082587a984a1743…

MALICIOUS

PDF

86.3 KB Created: 2021-07-07 05:12:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: b0e781d7fe7bf862150e16ef4495cce5 SHA-1: 54f672457d3cb4b3eedea0da5974a3029b630a92 SHA-256: 3082587a984a1743119ece72c062ef850514a73fde789cef84ec925bcd577ba9
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains embedded URLs that likely lead to further malicious content or phishing pages. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the detection suggest a phishing or malware distribution attempt, aligning with spearphishing attachment tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090924abe2a3---zozujewalegubuj.pdf
    • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160798f933f3b1---49784924973.pdf
    • https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/u5tbeo5604ori8hdvrj1pub9ep/zurovapolowotixupojita.pdf
    • https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/fe00b482620ec5d4ab6393c747cdb7a7/setanobeninoviw.pdf
    • http://hf1968.com/clients/48820/File/21736559599.pdf
    • https://nwdglobal.com/ckfinder/userfiles/files/63183344042.pdf
    • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160848dc4b9e89---22774331591.pdf
    • http://hesexpo.com/img/editor/image/file/diladazolivep.pdf
    • https://faktxeber.com/resimler/files/wevigadibapazubunimarela.pdf
    • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160d64bf83bff9---womunenibebejukakezawipa.pdf
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075db5048f92---110483206.pdf
    • https://yourlightingbrand.com/wp-content/plugins/super-forms/uploads/php/files/cad001ab7c5f64e7c9cc3296e1b37e59/rexaz.pdf
    • http://stl-hk.net/userfiles/11552352441.pdf
    • https://alamansyria.com/userfiles/file/53506482139.pdf
    • http://aiaato.com/FileData/ckfinder/files/20210626_2327E619F8F5CD6D.pdf
    • https://anukulagrotech.com/userfiles/file/bekureduremezutivowun.pdf
    • http://backupcenters.com/userfiles/file/5937366032.pdf
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b6380f207b---jijoredorekovudipitomeb.pdf
    • https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/34e708868a4522c3db23be6493d267c6/89032681474.pdf
    • https://kingcarmotorista.net/uploads/files/bukezades.pdf
    • http://pomocnaukowa.net/Upload/file/pepigawimomowewotug.pdf
    • http://bouncebodysupplements.com/newerac2c/userfiles/file/latiki.pdf
    • https://tranhtreo.com/images/ckeditor/files/xogolulesujovino.pdf
    • http://piecco.eu/upload/files/kinunajuduvo.pdf
    • http://zonweringbelgie.nl/ckfinder/userfiles/files/lojelopuvo.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=passion+by+lauren+kate+pdf+download
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eadd.bin
2fa807f54e568cc81cd077032fcd6bc180f55d34d160067ba5e51599ce634c72		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEADD 17368 bytes
font_01_sfnt_off00011848.bin
e869a4f5930b53209fe9fff99b41af308d0e18c30240f9ff574214ed9af53766		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11848 11024 bytes
font_02_sfnt_off000131ea.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x131EA 16792 bytes

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