Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6b0955b8f3ae6ba…

MALICIOUS

PDF

88.9 KB Created: 2021-07-25 20:10:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 0227f590515cab360b8e9323de3a31b4 SHA-1: 41e4f7cc27dc8fded292db1a25c89b3c594ed631 SHA-256: e6b0955b8f3ae6bae22563b7c429ef1199ee32f2a27d2305f77b892e64dd0170
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised WordPress upload directories and disposable hosting, suggesting it functions as a link farm. The primary goal appears to be directing users to malicious or phishing content hosted on these external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/1607d5b10eb94c---91358696201.pdf In PDF document text
    • https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16072a4ec0cbbe---24164502743.pdfIn PDF document text
    • https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160881c7a88dc2---42875183199.pdfIn PDF document text
    • https://espaciocultivarte.com/ckfinder/userfiles/files/28131590057.pdfIn PDF document text
    • https://blindnow.com/userfiles/file/8971529169.pdfIn PDF document text
    • https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/1607490102caa5---fizonomalesejotuwupikixi.pdfIn PDF document text
    • https://tanasiri.com/piceditor/file/22541299515.pdfIn PDF document text
    • https://noticky.net/akce/fotky/file/42238289520.pdfIn PDF document text
    • http://meble-tk.pl/userfiles/file/jogokeragozojagobonalu.pdfIn PDF document text
    • http://freetds.net/userfiles/file/77432356380.pdfIn PDF document text
    • http://hagelkonzept.de/userfiles/file/94670448128.pdfIn PDF document text
    • https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/3ae221e10eef8b8a4aa398c10ddf975e/17429868585.pdfIn PDF document text
    • https://b2cexpressdemo.com/userfiles/file/58736383807.pdfIn PDF document text
    • https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160985546dbe74---biluwe.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160afcf3f824ad---23802966937.pdfIn PDF document text
    • https://yildizwebpaket.com/calisma2/files/uploads/78792690635.pdfIn PDF document text
    • http://turnwealthy.com/ckfinder/userfiles/files/2844275089.pdfIn PDF document text
    • https://celebicatering.com/upload/ckfinder/files/94160734107.pdfIn PDF document text
    • https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0b0244099---79090222379.pdfIn PDF document text
    • http://digifast.cz/userfiles/84113928727.pdfIn PDF document text
    • http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608f3bb06c7a1---tugativajuririnagu.pdfIn PDF document text
    • http://ovartec.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d46b9d03369---zumunajofukanewosi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=jerusalem+old+city+street+mapPDF 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_off0000f4f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4F5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010d0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D0C 10776 bytes
SHA-256: 2e72681c759159dcab87c6c078cd9cc409a5116e9ee9fd03333ead5108550fa5
font_02_sfnt_off000125f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125F2 18000 bytes
SHA-256: 483fa1da44b8aeeb5d744d39c56af6effcd48e9ff5f6d91898d415b0a7b070e9

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