Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a296900b8aec185…

MALICIOUS

PDF

82.8 KB Created: 2021-07-02 05:25:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: e2a329d4035557119d4308a763695d66 SHA-1: 7f8adc8168bfca554b9b43e6aa0f331393855c53 SHA-256: 0a296900b8aec1856bf3b6732f97c1f7c5a8c089503b7c01a659aebae8692469
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple potentially compromised or disposable hosting sites. The presence of numerous unknown URLs, many hosted on WordPress installations, suggests an attempt to distribute malicious content or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9957

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/6e375d2734da97e19c6f6fddc3d8908b/15449945766.pdf In PDF document text
    • https://stallion-international.com/userfiles/file/guxexupujodeluputofede.pdfIn PDF document text
    • http://aggengr.com/uploads/CMS/file/rilerokekugolujoluvu.pdfIn PDF document text
    • http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a9fff039519---wenipupajiwubebavonajudo.pdfIn PDF document text
    • https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a679cb75e96---misowibejovipome.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d7f23a7f50d---1143432597.pdfIn PDF document text
    • http://axiomestates.com/userfiles/file/71491528687.pdfIn PDF document text
    • http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d25a228b4d---korabafobazijizisipesoke.pdfIn PDF document text
    • http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a344704a0b7---kofaxojurexapited.pdfIn PDF document text
    • http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae4b52acbdb---ziropumudax.pdfIn PDF document text
    • https://southernlightingsource.com/wp-content/plugins/super-forms/uploads/php/files/0aacf4ba187c05a3554fcabde4856336/rixetunifokofef.pdfIn PDF document text
    • http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/16087004da6af8---38465348716.pdfIn PDF document text
    • http://tgtech-auto.com/userfiles/file/zuzenopu.pdfIn PDF document text
    • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/160bf99c8adb7d---91975199166.pdfIn PDF document text
    • http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/16084db90a9f1f---82757200011.pdfIn PDF document text
    • https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/b7cf14a28e6542f5efcf893560e962fb/9043364711.pdfIn PDF document text
    • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aacefa91b2---mutiloluwen.pdfIn PDF document text
    • http://www.loicadesacavem.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1608467ccc0681---23095589180.pdfIn PDF document text
    • http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c100bc6808d---minuxojezagirafofenitapaj.pdfIn PDF document text
    • http://mhspartan79.com/clients/9/97/97d0d0788ec4d6723ba7be3cd58769e3/File/wozanekijidop.pdfIn PDF document text
    • https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/74e6c1ae753cfc335543513866ecac40/35463240907.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=death+note+episodes+eng+subPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c899.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC899 16140 bytes
SHA-256: 00b1f632e8afe72716c8bcdb76b7901b56c060d1dc0f96f3f5c1b8373b85735b
font_01_sfnt_off0000de15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE15 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f62c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF62C 10768 bytes
SHA-256: 290928f1226ed0e95babceb2d847f4c454fc0e2e7c82e13896287d8eb99188b2
font_03_sfnt_off00010e71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E71 17384 bytes
SHA-256: 4a4604d7e64103a927fb9382e71940a88cf14fd42af2eff3a0a6623cda99178e

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