Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bb8c229770ea126…

MALICIOUS

PDF

85.0 KB Created: 2021-07-02 23:21:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: 3f953a4ecac54ec8f44b045f41ef6ba8 SHA-1: 46cbc1eaaff3de6ef98a2096bc94c59ab1c3146f SHA-256: 1bb8c229770ea12632d5d3e79f6c809f0760770d4111690de6f73ed1644093bd
116 Risk Score

Malware Insights

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

The PDF document contains numerous links to disposable domains, many hosted on compromised WordPress sites, suggesting a link farm or phishing infrastructure. The 'SE_CALLBACK_LURE' heuristic indicates the document is designed to prompt the user to call a phone number, consistent with tech-support scams or callback phishing attempts. While no scripts were extracted, the overall structure and heuristics point towards a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/f76ac66d8e57328613da728d75274d3e/giziranape.pdf In PDF document text
    • http://peaceinsrilanka.lk/userfiles/file/zedefatexok.pdfIn PDF document text
    • https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/pepmpggve976c7h2f1vq2ov5js/rureregefiduza.pdfIn PDF document text
    • http://marta-galan.com/files/varios/file/jasonadavexesixuviribu.pdfIn PDF document text
    • https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/e8283a9e9885b950f2549c857fa5ca4e/64390884678.pdfIn PDF document text
    • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/160781e5fed576---2862845631.pdfIn PDF document text
    • http://feynburg-uhren.de/uploads/sukanapigagumukugeladi.pdfIn PDF document text
    • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/16071d077b0ac9---rajesigewijopajuxebusur.pdfIn PDF document text
    • http://globaltruthmediagroup.com/clients/a/aa/aa8380eac451876ae6ab993bf3a720d6/File/29380745370.pdfIn PDF document text
    • https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/eusc70f1ccc7ivd5kjj67smhr7/94200712842.pdfIn PDF document text
    • https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/c3f3db15613569a8d4dbcb186c87073c/19204503977.pdfIn PDF document text
    • https://consultingexpert.eu/fckeditor/userfiles/file/puxunokirudusewofamo.pdfIn PDF document text
    • http://dioceseofniranam.org/userfiles/file/bekaduriwe.pdfIn PDF document text
    • https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16084c973772b2---80356717353.pdfIn PDF document text
    • http://edgecs.net/documents/68031484658.pdfIn PDF document text
    • http://pahsclassof2005.com/clients/d/d6/d61c4c031b0f3af13d3e88110ef3a3e1/File/10114958462.pdfIn PDF document text
    • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16086e21b26f09---pomexowamo.pdfIn PDF document text
    • http://mamtomchabahai.com/uploads/files/files/79413795619.pdfIn PDF document text
    • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d38ea48b82b---1844504202.pdfIn PDF document text
    • https://sanipacific.com/attachment/file/45836515770.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=1970+chevelle+for+salePDF 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_off0000e330.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE330 19392 bytes
SHA-256: 680cb497d2e799856953cc24d6b856d246a83be2fec318e73960db2a95599be3
font_01_sfnt_off000115aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115AA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012dc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DC1 10500 bytes
SHA-256: 840650ea1678a50e6129aa6a18825b66269e778f65b2f5bad13650205286163b

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