Malicious PDF — malware analysis report

Static analysis result for SHA-256 30c6d3849d43534b…

MALICIOUS

PDF

69.1 KB Created: 2021-03-28 09:17:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: f6c7aa12ed724a942b344de0cd33391c SHA-1: 2675230aaf837c27047167456c9f54820dc3dd18 SHA-256: 30c6d3849d43534b2461c827fa6b2de4003ca4dc81321a4ad3b96e03d7903371
146 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged by multiple heuristics, including ML classification and ClamAV, as malicious. It contains numerous external links, many pointing to disposable hosting, and is identified as a potential link farm. The 'SE_CALLBACK_LURE' heuristic indicates the document likely prompts the user to call a phone number, consistent with callback phishing or tech-support scams. While no scripts were explicitly extracted, the presence of external URLs suggests a potential for downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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) 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://seumenha.ru/strik?utm_term=how+to+replace+jabra+evolve+65+ear+cushion PDF link annotation
    • https://mebijanuwirat.weebly.com/uploads/1/3/4/0/134042853/c2086c104959fa.pdfIn PDF document text
    • http://okrasote.info/gugerumozaxoralodovubebl4ll.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382976/normal_6045e905caef2.pdfIn PDF document text
    • https://jarovoxo.weebly.com/uploads/1/3/4/5/134511136/govuzebigone.pdfIn PDF document text
    • https://gulekikafosevog.weebly.com/uploads/1/3/2/3/132303175/2978368.pdfIn PDF document text
    • https://vabadagijuruka.weebly.com/uploads/1/3/1/8/131856539/5409849.pdfIn PDF document text
    • http://edayafar.xyz/yellowstone_season_1_episode_5_trailergj675.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489244/normal_5ffd44ab54792.pdfIn PDF document text
    • http://donbetosstreettacos.com/what_does_the_word_strict_constructionist_meanpvc10.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401696/normal_5fe61a167c21d.pdfIn PDF document text
    • http://sentytld.online/wijejoxetotexuvewosasesidpcdr.pdfIn PDF document text
    • http://parkji5x.xyz/87584207285ws28y.pdfIn PDF document text
    • http://buloshnaya.site/parogobifesukobipmxqp4.pdfIn PDF document text
    • http://topcreditmonitoring.info/58680196284914kg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451206/normal_604ba67edfd86.pdfIn PDF document text
    • http://storeplus.pro/vepebasufuls5dm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446030/normal_603e5fd3a0530.pdfIn PDF document text
    • http://ukranews.site/karananuwupowisupotozyymm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cc5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC5D 5628 bytes
SHA-256: 6d5308d4eef0e87151b9d8284a42bdd71c2a1b564e6bb298a13c192660b4d15f
font_01_sfnt_off0000df8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF8E 11232 bytes
SHA-256: 654913d35f18eeebd6c2551f88aca703d3f5eaca4ce10d58c4819703c26091eb

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