Malicious PDF — malware analysis report

Static analysis result for SHA-256 67abc2aa852bfe4d…

MALICIOUS

PDF

69.4 KB Created: 2021-09-05 04:01:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 75180527c7d3d885dd07d69c1327d3fa SHA-1: ca394c676ea29275b1eea6c629df052c948ebc74 SHA-256: 67abc2aa852bfe4d68926dda13dd1c3720fc6e0e84e8c9824180814f2ff596b7
176 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a phishing lure, including being image-heavy with minimal text and containing numerous links to external websites. The ML classifier and ClamAV detection strongly indicate malicious intent. The document's structure suggests it is designed to trick users into clicking a link, likely leading to a compromised site or further malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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 http://monticellotownship.org/userfiles/file/fopariwokuloron.pdf In PDF document text
    • http://0-50.ru/userfiles/file/96639754917.pdfIn PDF document text
    • http://tkhomedeco.com/assets/uploads/ckedit/files/20210811185100.pdfIn PDF document text
    • http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/rtbu1jlm95a82pmrn3okli2v56/22347538199.pdfIn PDF document text
    • https://vieclambanhang247.com/upload/files/13318489453.pdfIn PDF document text
    • http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609a780b30af5---96753363623.pdfIn PDF document text
    • http://irs-messtechnik.at/upload/zopolapikezunafuxezotewo.pdfIn PDF document text
    • https://orangcar.com/app/webroot/upload/files/20675944529.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160827ffb31b12---buwutofowodopinon.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1610f2720c95ed---1438816559.pdfIn PDF document text
    • https://dcimx.com/files/81226293317.pdfIn PDF document text
    • https://www.gasserbush.com/wp-content/plugins/super-forms/uploads/php/files/1da33df4e943f6e6ea646efe4e8673e7/35112650170.pdfIn PDF document text
    • http://zhizhencn.com/filespath/files/20210828051352.pdfIn PDF document text
    • https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/1607812f86a618---39961299532.pdfIn PDF document text
    • https://esportenerd.com/app/webroot/ckfinder/userfiles/files/84829597789.pdfIn PDF document text
    • http://tinhdaurosa.com/Images_upload/files/dazes.pdfIn PDF document text
    • http://shqinze.net/admin/upimg/file///bikadajuxovuruxugibifig.pdfIn PDF document text
    • http://gavinlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/74146114115.pdfIn PDF document text
    • http://www.bsa.by/ckfinder/userfiles/files/xules.pdfIn PDF document text
    • https://too.kg/wp-content/plugins/super-forms/uploads/php/files/6df3c674a27dc38c41bc92edaa1e375f/37022940227.pdfIn PDF document text
    • http://ottomaniantextile.com/userfiles/file/34326449195.pdfIn PDF document text
    • http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160873db7b9df9---30874436519.pdfIn PDF document text
    • http://juha.be/_files/file/livujanuxazuwadulejat.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=verbs+list+with+meaning+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_off0000b43c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB43C 13920 bytes
SHA-256: 7a84ab9fc7c482c19d41237b58126ec6be8f42450d730c4953bba21d1f3fba1b
font_01_sfnt_off0000d6b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6B4 11020 bytes
SHA-256: 145f7f4671691667789fdef98cf00309b9a34623e982f37223b1a755578b426c
font_02_sfnt_off0000efc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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