Malicious PDF — malware analysis report

Static analysis result for SHA-256 9355e7b2f641f3ae…

MALICIOUS

PDF

69.3 KB Created: 2021-03-03 07:52:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: dee619bc23f2116639dfc9f80b0b9bad SHA-1: c24892147ba73501619f6698084651f13ca5a35e SHA-256: 9355e7b2f641f3aef55da9ad587b8a758552dd4e2c275be80d13a88641dddfd1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://ponafet.ru/wix?keyword=masky+creepypasta+birthday PDF link annotation
    • http://tuwuradozanava.iblogger.org/ccnp_router_alley.pdfIn PDF document text
    • https://cdn.sqhk.co/vewukiziwemi/6mRggj4/takeout_restaurants_open_24_hours_myrtle_beach.pdfIn PDF document text
    • https://xuzubakew.weebly.com/uploads/1/3/0/9/130969304/dezobi.pdfIn PDF document text
    • https://lebamemodeli.weebly.com/uploads/1/3/0/7/130776101/1964844.pdfIn PDF document text
    • https://cdn.sqhk.co/sejixikerut/ehcpohb/7144659655.pdfIn PDF document text
    • https://dodoxatufasiw.weebly.com/uploads/1/3/2/6/132681482/598350.pdfIn PDF document text
    • http://xoxuvajes.mywebcommunity.org/what_is_production_weekly.pdfIn PDF document text
    • https://cdn.sqhk.co/tomubozes/d2pgPgc/lemon_pound_cake_recipe_made_with_cake_mix.pdfIn PDF document text
    • https://cdn.sqhk.co/rapekerokemo/TihhdDT/guxuragakafonazutokedigid.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fejoxinivume.rf.gd/81438043317.pdfIn PDF document text
    • https://s3.amazonaws.com/wiremeresegikon/67138163707.pdfIn PDF document text
    • http://rinimodosejowuf.myartsonline.com/43964379144.pdfIn PDF document text
    • https://s3.amazonaws.com/tarajix/33372751915.pdfIn PDF document text
    • https://s3.amazonaws.com/sakaburepagase/bk_precision_390a_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/gafedupeba/albizia_lebbeck_review.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/gulekuteva.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_off0000d2d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2D2 5440 bytes
SHA-256: f1cdd9995c9e2b3a721360aa5c5ee0a498894fdffdd46ad15343ef4fef856792
font_01_sfnt_off0000e555.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE555 10364 bytes
SHA-256: 68b6124ea8df55324ca245a088aa5d172b6174b6b9d396678cafead18a4e65fd

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