Malicious PDF — malware analysis report

Static analysis result for SHA-256 47e63d6279bbc3b3…

MALICIOUS

PDF

76.8 KB Created: 2021-03-18 03:58:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 190fd0e6dced22b9c8369c7eeb58b695 SHA-1: f72194eb5922d8e58f99c404cc6865be84e94a4b SHA-256: 47e63d6279bbc3b35ef1f6d88c981344523004971ec581ebf36328d96091fb50
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Closer pdf patrick marber'. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent, likely to redirect the user to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://baarspo.ru/wix?keyword=closer+pdf+patrick+marber PDF link annotation
    • http://jaxagogilexet.sportsontheweb.net/90007291540.pdfIn PDF document text
    • https://cdn.sqhk.co/tilafukefuwe/iphjB3l/geroxilorolesemimegufipik.pdfIn PDF document text
    • https://cdn.sqhk.co/bogulevim/jiUwD4S/juwajaridokarelitaz.pdfIn PDF document text
    • http://xoziduso.mypressonline.com/weredir.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486982/normal_5ff71ab081d2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392462/normal_603995f1ca81c.pdfIn PDF document text
    • http://vikiduxa.mywebcommunity.org/90327342188.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457857/normal_5ff077995915e.pdfIn PDF document text
    • https://cdn.sqhk.co/kivipemo/gciihgY/luzelak.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/saluxofanakavabatininu.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/what_do_you_wear_to_work_at_old_navy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f53a0937-4cef-4191-975e-6d48216f36a6/betukawupejemanino.pdfIn PDF document text
    • https://s3.amazonaws.com/jarirotexab/bescherelle_gratis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b984a88-f13b-46d8-8dc9-a823f1701704/john_deere_z225_deck_belt_replacement.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/4392773326.pdfIn PDF document text
    • https://s3.amazonaws.com/lolaritemukole/command_prompt_here_windows_10.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e52db741-ce28-4640-ac68-0b1a546e4f18/how_long_does_it_take_to_cook_a_whole_turkey_in_an_air_fryer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e91fceb-8ed9-49df-b5b5-8f25175de06b/what_is_the_safest_space_heater_to_buy.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/systemverilog_assertions_handbook_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3bfac6e-d65d-4b23-8fdd-d93663e96d9f/falepipasatab.pdfIn PDF document text
    • https://s3.amazonaws.com/piradi/natural_pesticide_for_leaf_footed_bugs.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/3092832249.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_off0000eea5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEA5 5412 bytes
SHA-256: d666c0b15d8137683cf7d7496f183b57542be7716b539ef19e7559a4e6e61bcd
font_01_sfnt_off000100f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100F1 10836 bytes
SHA-256: 6a249b8f0571dbb1d2b2d56e5f387a6f238528b4be1c1646d84ecaf9cbc21956

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