Malicious PDF — malware analysis report

Static analysis result for SHA-256 9db62e10d534c559…

MALICIOUS

PDF

85.6 KB Created: 2021-07-01 11:38:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 62b22a1c6aae7ea791039f86c486e61e SHA-1: ed1ddaa1becbfa83cbeb9508df131dcde3b8729c SHA-256: 9db62e10d534c5595a75a1b7ada738833c6dab2fc9d20766c2df9331e92bf5f7
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. It contains embedded URLs that point to external PDF files, suggesting it acts as a lure or dropper. The presence of PDF-specific heuristics and embedded URLs strongly suggests a phishing or malware distribution campaign, likely initiated via spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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 http://bettynblue.com/upload/fck_img/20210515/file/wulitabedesobevenuxijon.pdf
    • http://phillipwhiting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f2f11067bf---99430360858.pdf
    • https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/55b2a21cc3c174d0e122fcee60111f09/5984452284.pdf
    • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1606c65b4ccbfb---jipavimejen.pdf
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cad6a8c4aa1---8918038921.pdf
    • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608141999a8c3---98113571973.pdf
    • http://aklond.com/UploadFilesfile///2021043023533053.pdf
    • http://fittbike.hu/files/file/59418787494.pdf
    • http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16096aa5321818---tuguzoriwurakinafimab.pdf
    • https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/7d0261894029f550ba71c0131c055d7e/26312168723.pdf
    • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/a4e54955b86f1b612f8e233bb4fdb2d0/81014261956.pdf
    • https://adtw1.com/ckfinder/userfiles/files/kuzibakoxanumevipowuxinu.pdf
    • https://weeb.nu/userfiles/file/34247897777.pdf
    • http://cepsagibyachtfuels.com/images/photos/vifesovupotajuki.pdf
    • https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/ri2mol4skrk0gmodpn3vust1m9/23824592898.pdf
    • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/aa9fb6ea707c7119cf98d7b038c6c98b/dovemagesekirozoveniba.pdf
    • https://mollis.rs//files/nenuvupodomadelogexivat.pdf
    • http://jjmcp.jp/userfiles/Image/file/52815816073.pdf
    • http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16095771b54181---93454230635.pdf
    • https://acryl-bg.com/userfiles/file/44804614420.pdf
    • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5ee184f439---kalemedudisusufidawekufe.pdf
    • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/94f17b693b4d4608150032501bb83f9f/82767897710.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=dhating+naach+mp3+song+free+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_off0000e9cb.bin
7096aa4fb9fb2b94fedc4f9796bde495a43aa15fe3c38502067f7f87adc42347		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE9CB 17236 bytes
font_01_sfnt_off000116d4.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x116D4 16792 bytes
font_02_sfnt_off00012eeb.bin
5cee46772e2eb267491705411dfb04c1bc1991ff2c52d38ef29d9155d46796cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12EEB 11324 bytes

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