Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8c483a8d66c9b87…

MALICIOUS

PDF

94.3 KB Created: 2021-04-10 07:31:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: d53a6a160d949e9bc41c8e446ae0d773 SHA-1: 72ebf272b2c108ea3ee933c2050b5dd0a1a107e5 SHA-256: f8c483a8d66c9b87d01f714e13d0c9161cb991a97a1136a3e90510d40b795919
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 0.9997

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://mezovuduw.ru/strik?utm_term=basic+hangul+letters PDF link annotation
    • http://mazejofeg.mygamesonline.org/jubojojejaj.pdfIn PDF document text
    • http://lofoporubatul.mygamesonline.org/ghost_boys_movie.pdfIn PDF document text
    • http://kofodotig.sportsontheweb.net/13459475985.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502236/normal_600caebf88467.pdfIn PDF document text
    • https://gilivederediwo.weebly.com/uploads/1/3/4/6/134683856/xodexowagetopodagit.pdfIn PDF document text
    • http://vosajizegek.mypressonline.com/alain_de_botton_livros.pdfIn PDF document text
    • http://burivuvuju.medianewsonline.com/tituweporoxevatenajakag.pdfIn PDF document text
    • http://tonalemeketav.66ghz.com/second_and_third_conditional_mixed_exercises.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414352/normal_601aec5912e23.pdfIn PDF document text
    • http://todayshop.website/yamaha_yas_101_soundbar_instructionsr5a16.pdfIn PDF document text
    • http://sputnews.com/878059913506657i.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381988/normal_6023ff17ed89d.pdfIn PDF document text
    • http://poradoit1.site/five_point_scale_examplesdkxuf.pdfIn PDF document text
    • https://bojuzogonugux.weebly.com/uploads/1/3/5/3/135304036/ed78ac47d91.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/xapidajovaji/oracle_11g_sql_plus_default_username_and_password.pdfIn PDF document text
    • https://s3.amazonaws.com/luworizesupox/18051755195.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/biwumewifelapinozok.pdfIn PDF document text
    • https://s3.amazonaws.com/tapelu/lg_washer_dryer_combo_oe_error.pdfIn PDF document text
    • http://fuvogixus.epizy.com/mowebujugivewuken.pdfIn PDF document text
    • http://tuwofexuguxu.epizy.com/ledinarulekodovuzinav.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001199a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1199A 7456 bytes
SHA-256: 5ed13905fccb6b6be1919014bf3e6f44b4f443fc279a4a11c94b5bdc63fc0271
font_01_sfnt_off000132c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x132C7 5108 bytes
SHA-256: 0b1d68290641d33be1d76076b0fc302383b5bfd3174e3f77af545abd5678397e
font_02_sfnt_off00014426.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14426 11648 bytes
SHA-256: fa7d31e99ed5735b1e2a369d3cef0c8108fbe5f1d69119377376b62788bf4983

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