Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a2d3ab08baedf7a…

MALICIOUS

PDF

64.9 KB Created: 2020-10-27 16:04:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: b220f26cafea674fb688f51a6ac059ac SHA-1: 584ac69321319c546ae66387ff59e2486bfd3513 SHA-256: 3a2d3ab08baedf7a9e9f93b0fb68663716eff0d62c6598f1860ff68269d29a58
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lead the user to harmful content. The document body, though heavily obfuscated, contains the URL 'https://gettraff.ru/pify?keyword=minecraft+civilization+mod+1.15.2', suggesting a lure related to Minecraft mods. The presence of numerous external PDF links further supports the classification as a link farm, likely intended to generate traffic or distribute malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://gettraff.ru/pify?keyword=minecraft+civilization+mod+1.15.2 In PDF document text
    • https://vibebivenef.weebly.com/uploads/1/3/1/4/131412032/8807337.pdfIn PDF document text
    • https://bininadaxirag.weebly.com/uploads/1/3/4/4/134475951/8964240.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/76c30d49.pdfIn PDF document text
    • https://fosogaji.weebly.com/uploads/1/3/1/4/131455903/e636357f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409113/normal_5f96ca08320cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369933/normal_5f8b72a549c4e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375204/normal_5f89d78f1add5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373248/normal_5f8eecf2765dd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366984/normal_5f87703279149.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366024/normal_5f8a608139a89.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387929/normal_5f9418ca0bd1c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365589/normal_5f876ff4a9467.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366407/normal_5f8a1d96551ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369775/normal_5f89216c2074e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/08f6731e-e673-4472-b468-7982c83d0485/retique_it_liquid_wood_lowes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f92962e4-0270-47d5-aa99-9ab0bbbe8735/77853606856.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72b01ee0-3b74-4bdd-8fdd-5100f1a295ad/76107175213.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c749df0-9deb-49de-8191-03a22918a317/bajemupimipabij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50113d55-2220-49c5-800b-6f4ec6ec9463/lurevepadunakunimatirunod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bdfe80d-bf7d-4890-8a02-09ada38885c2/47346112049.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01c6975e-281d-4b09-904e-1c4d4e3d8d46/kewexadasipokuve.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4caa0bab-b4e5-44f3-94dc-33f3a254ee23/fasibivuxe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b7cec72-9dc0-4f86-b7f8-20977e2c5856/wevuloluluvaxapupetexut.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
    • 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_off0000a7e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7E3 5444 bytes
SHA-256: 3bfb894ef89b625cef5a7a692f271b450ef86775f3896d493e51de4226474275
font_01_sfnt_off0000ba72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA72 10808 bytes
SHA-256: b192b86e74ec142adb3cc9a5916f1907ec82954049c267fe925071b2d800a89e
font_02_sfnt_off0000df24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF24 16064 bytes
SHA-256: 6f41d85279102efce3c4bd26fddb767baf9b68a4f55e239fba9bedc2a2d3b953