Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d6b47b2e18a3336…

MALICIOUS

PDF

84.5 KB Created: 2021-03-12 06:59:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 72c758747ae6530a037fff79ffeaac89 SHA-1: 538cfdafe650135c7be35a46d61db826689b8ca2 SHA-256: 2d6b47b2e18a3336c924b5885050aaec16e92ccc2cae3fd4f49c65b0902dbe5a
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-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://resalured.ru/award?keyword=human+centered+design+toolkit+pdf PDF link annotation
    • https://razamilijukiw.weebly.com/uploads/1/3/4/8/134879964/kerumopolane.pdfIn PDF document text
    • http://sujuwufuki.iblogger.org/rudavugitalixapelij.pdfIn PDF document text
    • http://juxowupekabaf.mygamesonline.org/what_are_the_materials_that_are_required_for_photosynthesis_to_occur.pdfIn PDF document text
    • https://vowopazi.weebly.com/uploads/1/3/4/0/134096587/3709555.pdfIn PDF document text
    • http://sitebomobegux.sportsontheweb.net/79950425521.pdfIn PDF document text
    • http://kerutugizuxig.mygamesonline.org/a_wild_sheep_chase_map.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lowuzoduveloga.epizy.com/mofiveg.pdfIn PDF document text
    • http://mupufuten.epizy.com/baby_face_dance_videos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eec515e6-b124-4fe4-816d-0d4a3fabb11d/1d4chan_30k_legion_tactics.pdfIn PDF document text
    • http://kisalonokexiwi.atwebpages.com/munevofa.pdfIn PDF document text
    • https://d848e4b6-662b-4424-a759-963270729452.filesusr.com/ugd/30e015_f1a8696101884e579ba4f6743e76061c.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/22e97c33-34ed-45d1-b2f1-9930828ec442/hyundai_sonata_2012_limited_edition_specs.pdfIn PDF document text
    • http://salajire.onlinewebshop.net/plan_y_programa_de_estudio_2011_sexto_grado_matematicas.pdfIn PDF document text
    • http://nejesezape.myartsonline.com/baixar_dicionario_hebraico_portugues.pdfIn PDF document text
    • http://jigopikuxulet.epizy.com/magegakulafojepaso.pdfIn PDF document text
    • http://feferabi.atwebpages.com/2572074445.pdfIn PDF document text
    • https://5849b288-062f-49f8-a71b-da420f1f00fd.filesusr.com/ugd/c068f8_db2b2b435c4d45b3b44931adc30146ae.pdf?index=trueIn PDF document text
    • https://bc5ba30c-e427-49eb-abc4-9677f18f04c1.filesusr.com/ugd/bcd086_abb6d7721ef642a9a855d84f267d5435.pdf?index=trueIn PDF document text
    • https://bc260b4e-efc2-469d-9102-9c7234992d76.filesusr.com/ugd/b1b3ad_b35e8df1d83e4f019dd44a1d14d6f5ed.pdf?index=trueIn PDF document text
    • http://tikeresepujel.onlinewebshop.net/xasulapuzufolemupuw.pdfIn PDF document text
    • http://vomewudige.atwebpages.com/bukadora.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_off00010dd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DD1 5500 bytes
SHA-256: 4cfecdea65ddf22e3b9274aa70a92787324af9ebcdbb0ba91f67bae5eb18b8de
font_01_sfnt_off0001206d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1206D 10644 bytes
SHA-256: 9e2452416941ea235efac553ac60fb3fb4b54a0462d18012f20d49e372dc9e3e

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