Malicious PDF — malware analysis report

Static analysis result for SHA-256 102c8f5fab8c1f4f…

MALICIOUS

PDF

75.7 KB Created: 2021-03-25 10:56:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 9515e6832009981e1882098fb6b22327 SHA-1: 542bff2b2847be87b46378a29690f5aa72027390 SHA-256: 102c8f5fab8c1f4f94f2f51fd05e625ff4d5b5bdd439a85704708102e0d9ffef
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://xajibur.ru/strik?utm_term=world+war+z+ps4+download+code PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4473047/normal_60030c78a3755.pdfIn PDF document text
    • http://junumidutuzakox.getenjoyment.net/xetumutupamigusatiwiked.pdfIn PDF document text
    • http://fodibuj.scienceontheweb.net/maxubirevo.pdfIn PDF document text
    • http://edaruzal.xyz/leredogimikuxm6co4.pdfIn PDF document text
    • https://wisamifogafize.weebly.com/uploads/1/3/4/5/134598642/1481565.pdfIn PDF document text
    • http://yourcy.com/iceland_the_land_of_fire_and_ice_book1r2uj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481417/normal_604ba9e4e94bf.pdfIn PDF document text
    • http://milansit.space/fisimi8a0r8.pdfIn PDF document text
    • https://ropugobefele.weebly.com/uploads/1/3/4/4/134445072/jaxopoli.pdfIn PDF document text
    • http://zugasanuko.getenjoyment.net/zakigukuserurot.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450240/normal_60480034a8bb9.pdfIn PDF document text
    • http://acupofjacob.com/what_is_the_best_50_gal_gas_water_heaterdy1kr.pdfIn PDF document text
    • http://anarchymedya.com/231430035214uvtp.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/tuzakifezara/73043350939.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/defanabemekiwiwamu.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/algorithms_4th_edition.pdfIn PDF document text
    • https://562c2315-396f-49d1-9e45-1236e049cb13.filesusr.com/ugd/ec0012_b28efee399584008921d7ead182cc963.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tolivajupeku/bombay_movie_full_hd_video_songs.pdfIn PDF document text
    • https://f0ded7c6-1882-44c2-b580-3fd8daacf182.filesusr.com/ugd/1cd4ca_8e25cdfa8ec94baebed74f50791403ad.pdf?index=trueIn PDF document text
    • https://ee60c613-3dd1-430d-b711-08e3dcbf0273.filesusr.com/ugd/19ce5d_caae85f47fc842ddaa2e97242aa17e4b.pdf?index=trueIn PDF document text
    • https://1682489e-d94b-4f22-b6a6-c8ecb623ca2e.filesusr.com/ugd/5f226e_464cf86145574372944be407a17ea3f8.pdf?index=trueIn 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_off0000e80f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE80F 5312 bytes
SHA-256: 587ae9af77d198e264501a54dc0d6c51353398cab5120c0f9740a86c75083a2b
font_01_sfnt_off0000fa53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA53 11412 bytes
SHA-256: 99571a19f608542f006aae998d00c6a701b1b6b992f64212392442c81de2ccbf

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