Malicious PDF — malware analysis report

Static analysis result for SHA-256 34fb0c1188f5d9f1…

MALICIOUS

PDF

65.7 KB Created: 2021-06-02 00:34:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 2c9697f6b8c7a15194c3728330d39127 SHA-1: 1e5e62beb4fb184668a01ef353851c131f17e7bc SHA-256: 34fb0c1188f5d9f146baaaf5b8fa4bd37ed7e227567cc5b4cf1e9ad0ea8ab265
126 Risk Score

Malware Insights

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

The PDF document contains numerous external links, including one to 'huntic.ru', suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a malicious document designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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://huntic.ru/pbw?utm_term=republic+ez+spreader+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4457570/normal_6028b56109647.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4409997/normal_60b07be0d4d56.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406241/normal_5fec8c946c782.pdfIn PDF document text
    • https://pojewesam.weebly.com/uploads/1/3/1/4/131410485/1480400.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401732/normal_5ff5bab8032a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426267/normal_6033ecb02af3b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465555/normal_600ca8377aa5b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424029/normal_5fc7dad9152c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485689/normal_606e38dd4df6f.pdfIn PDF document text
    • https://libakitaxejadeg.weebly.com/uploads/1/3/4/0/134096258/1cabb08e224097.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409628/normal_5ff989044dee7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488604/normal_605d5defa140e.pdfIn PDF document text
    • https://jifujutikawe.weebly.com/uploads/1/3/5/3/135328504/fudepanedakis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409256/normal_5fd2e41b9b251.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nigezid.pbworks.com/f/60458739228.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47be38fb-5a07-494f-91e8-1da579bb09b0/dexenow.pdfIn PDF document text
    • http://togiwuvoze.pbworks.com/w/file/fetch/144481128/90107092394.pdfIn PDF document text
    • http://jopamedet.pbworks.com/f/61730164858.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7dd6a9b-552c-49c6-a014-a0d0d7726b7c/miluvugorowekut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fddd2502-9765-41d1-a125-4ea89ada26bd/tudomalajezegileko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4daba940-5c28-4545-944e-fbc3a796814a/nys_drivers_permit_test_covid.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c6be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6BE 5416 bytes
SHA-256: 63315bdd3170d81504c1a678cf057daf2efc324632f109f9c1c090a825018168
font_01_sfnt_off0000d91b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD91B 9456 bytes
SHA-256: fbde72f0a1eda983a66e819a944f8300bd39c23b96528673de15129dbe0748af

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