Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c4e978e0034eb1f…

MALICIOUS

PDF

88.1 KB Created: 2021-07-14 09:10:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: 0358425d460cc02081517cebc1e02dc0 SHA-1: c9841d6e635c20754262d6b3349356f96015bddf SHA-256: 7c4e978e0034eb1f9c6b17ab0cd25424506e4b9c96b2b88dd05388b9c41d9e37
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected by ClamAV as Pdf.Phishing.Trojan and flagged by an ML classifier, indicating malicious intent. It contains numerous external URIs, including one pointing to a raw IP address, suggesting it is designed to redirect users to potentially malicious sites. The presence of multiple links on compromised WordPress upload storage further supports a phishing or malware distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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 https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5b93ed68d8---favubirukalemipivogebizu.pdf In PDF document text
    • http://jevades.com/aircraft/fckimages/file/wuxenodabogotekiwuduz.pdfIn PDF document text
    • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5f7d95bb8---sariforirelubaxa.pdfIn PDF document text
    • http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/160848efae5be7---wuseviwuxuwabugu.pdfIn PDF document text
    • http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609a8b2c16ab2---6717373164.pdfIn PDF document text
    • https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/6cb150ecc199e31139fbd987a63e6549/77800647139.pdfIn PDF document text
    • http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa96da126e3---7955460075.pdfIn PDF document text
    • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c56a9c59edd---bagisobuza.pdfIn PDF document text
    • http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608296eb3e48e---58044119839.pdfIn PDF document text
    • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160737686bdeab---68790161571.pdfIn PDF document text
    • https://aprilboya.com/userfiles/file/45987607041.pdfIn PDF document text
    • https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/160805f0dbf836---76381097931.pdfIn PDF document text
    • https://alshaabcoop.com/userfiles/file/sutemabexepumadere.pdfIn PDF document text
    • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/7366bf5a7a5b5663cb3806edbb924aba/90275054002.pdfIn PDF document text
    • https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/rlbe6a54f8chr1mm6qf9gqf19b/pibumonafesaw.pdfIn PDF document text
    • http://157.230.241.115/image/upload/File/zovalomazumusa.pdfPDF link annotation
    • https://rajatotogroup1.com/contents//files/78050674122.pdfIn PDF document text
    • https://dienlanhhonganh.com/images/pic/file/28923308652.pdfIn PDF document text
    • https://rebel-guitars.com/wp-content/plugins/super-forms/uploads/php/files/d8693f56f29f1a5ea5d4bea6f6d2a2c2/dilos.pdfIn PDF document text
    • http://stpatricksreunion.com/clients/84553/File/bazidazafageb.pdfIn PDF document text
    • https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/83a3751a8ad114f70bcbcbc3c5ae5aa1/goxigewi.pdfIn PDF document text
    • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2f6bbb04a5---89637438305.pdfIn PDF document text
    • https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ccc42894a4a---ziduxosaruful.pdfIn PDF document text
    • https://edoxmarketing.com/wp-content/plugins/super-forms/uploads/php/files/oi930j0go2q57a3l9p49rkg1qu/tojuse.pdfIn PDF document text
    • https://jajugroup.com/ckfinder/userfiles/files/govanose.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=best+sword+for+dilucPDF link annotation
    • 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f65d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF65D 17004 bytes
SHA-256: 7370fc702fbe2a073631d5ccfde494cc98f1a1a391a66a5323a8b45bc10ba054
font_01_sfnt_off000122f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122F6 10440 bytes
SHA-256: b87af30b2c64d289bc0fb21b4c633456f9e2c5cbc935a0638bd5b9470fa7929e
font_02_sfnt_off00013ae2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13AE2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.