Malicious PDF — malware analysis report

Static analysis result for SHA-256 42a221014e0caed7…

MALICIOUS

PDF

69.2 KB Created: 2021-09-04 18:14:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 62567c8a6417d2ad60b48672331abecd SHA-1: 402d0d626c1da0bd496b9b8393a69ccf09cd9097 SHA-256: 42a221014e0caed78f86ecce580b0ae9340d5b36bc8006c1dc51864a4c427896
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF is identified as a phishing lure due to its small size and image-based content, typical of a screenshot designed to trick users into clicking malicious links. The numerous extracted URLs, many hosted on compromised CMS platforms, further support this assessment. While no scripts were directly extracted, the PDF structure and heuristic firings indicate it's designed to redirect users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9837

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://poolpoint.be/uploads/file/bubisipoleme.pdf In PDF document text
    • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/20b2dc7881547b12f5833c2d205565fa/58894183578.pdfIn PDF document text
    • http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/5d295213b43a39528ca7dbc9e42daa5a/kodezovozutekoxujozug.pdfIn PDF document text
    • https://drosamahetta.com/userfiles/file/7064296697.pdfIn PDF document text
    • https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/325d01df10e6ee80cbdd7b031b86b3ce/tusigikukadezi.pdfIn PDF document text
    • https://pendekaremas.com/contents//files/48632296557.pdfIn PDF document text
    • http://touristclub.in/userfiles/file/dubiwedapesu.pdfIn PDF document text
    • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612b1cf6183d7---4472589236.pdfIn PDF document text
    • http://tweddlefoto.com/files_contenidos/upload/files/15906320061.pdfIn PDF document text
    • https://tinhhoaxanh.vn/userfiles/file/30127028758.pdfIn PDF document text
    • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/v3dt0ab4umi7icoubu3hoildng/91114298263.pdfIn PDF document text
    • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073b366ede04---rifapajaboluxakorogiwolu.pdfIn PDF document text
    • http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611dc3d83adaa---51923944647.pdfIn PDF document text
    • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609458ea695af---8271712479.pdfIn PDF document text
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f417d5261b6---larefefesipow.pdfIn PDF document text
    • https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/16117aa69d724f---kanukudagufo.pdfIn PDF document text
    • http://pixel-pro.ru/upload/file/sepewirabobexutajejap.pdfIn PDF document text
    • http://studiocalcinoni.com/userfiles/files/fubiziwidepebiwavamovu.pdfIn PDF document text
    • https://lion-trading.co.uk/wp-content/plugins/super-forms/uploads/php/files/8fu4cvc1r8q1os1rtl1tatcf54/25789835923.pdfIn PDF document text
    • http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16082c1eaafe3c---97438453336.pdfIn PDF document text
    • https://galedo.cz/www/data/cms_files/files/jevegabezufeda.pdfIn PDF document text
    • https://michelbarbot.com/upload/files/62813393990.pdfIn PDF document text
    • https://trimix.bg/UserFiles/File/43174525134.pdfIn PDF document text
    • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f8b75ab028---bipidase.pdfIn PDF document text
    • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16089f20ba568a---vomelonamaw.pdfIn PDF document text
    • http://brandnewgoods.net/userfiles/file/60802239689.pdfIn PDF document text
    • https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e5c03e7d3db---foguxosipinotefotuluwu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=tadao+ando+houses+pdfPDF 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_off0000b5d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5D7 13804 bytes
SHA-256: 3c6caa17533e940cb62190bc19772ba0fecd2bc32e2feb2a55b12e2d250d4779
font_01_sfnt_off0000d7fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7FB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f012.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF012 10320 bytes
SHA-256: 4b8c8ce4da4afd49ae74603ae608ac14141d37747d3ceceba39035941e040a3c

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