Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c2207c16a51058d…

MALICIOUS

PDF

68.0 KB Created: 2020-12-28 19:39:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: eefe8cdbe85338ba499ae035860e02af SHA-1: 99165209e70d3b003da38fc782979450f1862943 SHA-256: 3c2207c16a51058d6e62f7718ea285ec8b29ad05e2041e343a78a10008567339
154 Risk Score

Malware Insights

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

The file is a PDF that contains a critical heuristic firing for linking to known malicious redirector infrastructure. The ML classifier also flagged it with high confidence. The embedded URL points to a suspicious domain, suggesting a phishing or malware distribution attempt. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/123?utm_term=right+there+lyrics+august+alsina In PDF document text
    • https://cdn.sqhk.co/kabevapixox/iahhi1L/dirt_racing_go_kart_for_sale_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/joraxeneli/vsdmUgh/fruits_legend_2_game_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465719/normal_5fa68cd35cb5f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472773/normal_5fc7a2338e378.pdfIn PDF document text
    • https://cdn.sqhk.co/xulawajikigi/dicjbK7/graphic_design_portfolio_websites.pdfIn PDF document text
    • https://cdn.sqhk.co/fifapupifig/ifqnUdE/hexa_jigsaw_puzzle_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482023/normal_5fcd89dfcf62c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369802/normal_5f8d059c7925c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/rutozitasavavuv.pdfIn PDF document text
    • https://s3.amazonaws.com/fazujo/59083346341.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37d1ae56-b029-4c26-8bd2-193f1b665fe1/gufuredexutizo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18e86b1e-cf5d-4915-88f2-f7b0f695b006/what_is_the_amount_of_electric_field_passing_through_a_surface_called.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/84874848629.pdfIn 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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD6A 5172 bytes
SHA-256: 0341f7eebfb76027132e3736ad958f44b7c4182cb70a82e380a76e7e2bc4e68b
font_01_sfnt_off0000df0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF0F 10616 bytes
SHA-256: 1a1cfbcbbc705d8c5c3387dedc8c610b2ae3c66dd6d341c3c737b3524b3d8ae3

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