Malicious PDF — malware analysis report

Static analysis result for SHA-256 d00e6ee565864f2e…

MALICIOUS

PDF

94.1 KB Created: 2021-06-26 22:20:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 53894eb4cdc5b0a37e02bd0f912a24d4 SHA-1: c79fb71312db2464fbc9931d8f805ccc97c15f7c SHA-256: d00e6ee565864f2eb94f7720dcdb11d1e8be8f6efcf927350d39c04bd1b50ad7
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites and are structured as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and URL analysis suggest it's designed to lure users to external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b89dc300dc---favaded.pdf
    • https://uclerbaklava.com/resources/file/66052171868.pdf
    • http://cn-noah.com/uploadfile/file/xidibefujubabir.pdf
    • http://waukeganeast1980.com/clients/877304/File/tujojarupodu.pdf
    • https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/4d40706f47b06fcfa0871abea5616805/nepimagadu.pdf
    • http://jagatjyotischool.org/jagatjyotischool/userfiles/file/7057195024.pdf
    • https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a36db0828e8---94072713078.pdf
    • http://jp-cable.com/d/files/33400681734.pdf
    • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/je3kr9ln4gt1l9en4g70b1jb6e/81979694743.pdf
    • https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/16096b6e4bcf65---55228881707.pdf
    • https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075024eb7ea3---18636388219.pdf
    • http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/c8b2436bc7a11c2ce84179db9e9a97bf/59476182680.pdf
    • http://clarkstownhs64.com/clients/2/25/255c49a504cbad61718694d8b78dfcdd/File/vivotidawinatotamixagez.pdf
    • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b920f5a5c98---11159694680.pdf
    • https://advance-pack.com/editor_upload/file/75645405292.pdf
    • https://betenenergy.com/sites/default/files/file/16630176583.pdf
    • http://grupogmec.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1b94f9bb7b---lavix.pdf
    • https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/85920e92c12b9444b31bb34e4fa63768/45542572552.pdf
    • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c48a831f5da---45200714605.pdf
    • http://technoculture.cz/admin/upload/file/55843784834.pdf
    • https://accesoriosalmayor.com/images/userfiles/file/gorijafakiretimid.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=i+love+you+forever+with+all+my+heart
    • 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_off00010e0a.bin
b44f2addf64a31ca1cfb8280fe6cec262bc7462d27622f29a8102fd7da75f758
pdf-font-stream PDF embedded font (sfnt) at offset 0x10E0A 10524 bytes
font_01_sfnt_off00012610.bin
d0ade08ed7c100a2002cfc55b6f8a1204a7b61936a41439c9363baea677523e8
pdf-font-stream PDF embedded font (sfnt) at offset 0x12610 17292 bytes
font_02_sfnt_off0001530c.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x1530C 16792 bytes