Malicious PDF — malware analysis report

Static analysis result for SHA-256 14ae811660dc9085…

MALICIOUS

PDF

85.5 KB Created: 2021-03-22 19:42:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: e7d3e2b9d8eeb95adfa7eba411e6e6e9 SHA-1: 530a193cbb10389d2441120e6de7604b29c920e7 SHA-256: 14ae811660dc908566bee68574846dc93735a7c07d2810de9ada817d24248f22
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/wix?keyword=the+rise+of+kyoshi+pdf+download PDF link annotation
    • http://nifimoperokoj.medianewsonline.com/reboxuriratefiguwoma.pdfIn PDF document text
    • http://dimozakebaba.scienceontheweb.net/readings_for_sociology_8th_edition.pdfIn PDF document text
    • http://reabook.online/luxotubivososudazipueqewk.pdfIn PDF document text
    • http://finansi-7.online/wutijefulupegorobavotb1ll8.pdfIn PDF document text
    • http://gallery-shop.site/vewowimuletulamupr33h.pdfIn PDF document text
    • http://life50it.pro/205717091894ab3v.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/68c10647-064d-4282-a224-a021414755f3/65350230165.pdfIn PDF document text
    • https://s3.amazonaws.com/gawabog/78894445251.pdfIn PDF document text
    • https://beca70af-11ea-46d2-a649-d7fd44c468ee.filesusr.com/ugd/dd41e2_cfc6224b88bb460ea5ea45170aaab86c.pdf?index=trueIn PDF document text
    • http://xedekig.rf.gd/tezupugisurivuwutu.pdfIn PDF document text
    • http://fatufad.rf.gd/microsoft_az_100.pdfIn PDF document text
    • http://xaxotatizomeno.rf.gd/91694724728.pdfIn PDF document text
    • http://nukixoxekixos.epizy.com/marriage_biodata_format_-_word_format.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cfab961-15d5-47c6-b46b-6677ca6cb282/57007206036.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91b82fd9-6a61-46db-953f-0dcb0e2ebe03/water_cycle_worksheet_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/lowuwofuxali/xizipafetuga.pdfIn PDF document text
    • http://binuxoxu.rf.gd/riven_guide_s8_boxbox.pdfIn PDF document text
    • https://e824aeac-d22a-4b45-bb3c-17051d6ee04f.filesusr.com/ugd/de60da_ba88eb5325d542e88a2438036f46fac9.pdf?index=trueIn PDF document text
    • http://tofilijewok.atwebpages.com/xevukoxotepivasavebif.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/college_event_management_system_project_report.pdfIn PDF document text
    • https://s3.amazonaws.com/kabisebax/crpc_1973_bare_act.pdfIn PDF document text
    • https://s3.amazonaws.com/rumezo/eduardo_galeano_aynalar.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 8

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_off0001108f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1108F 5336 bytes
SHA-256: d8c79d8626f006c38cb87e3818ef067c25c5454d1f87f0ed15a3fae8617fb019
font_01_sfnt_off000122ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122CA 10608 bytes
SHA-256: 0b3bb1f2caf27e1ae9aa510e995f2e21c9b0ac26753919e3c34eeee482a75454

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