Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e494772ce77d73b…

MALICIOUS

PDF

75.8 KB Created: 2021-03-18 13:55:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f827ecd0ca82c4bc4ec028c276fd3c8c SHA-1: 24119f206026d1f7d61647f5708a5167c0d429c8 SHA-256: 9e494772ce77d73b241b722218cdd3137ab95d0a5039845d445fc6aa830ee61f
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that points to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://xezojetit.ru/strik?utm_term=where+can+i+get+a+new+fios+tv+remote
    • http://fogejebimo.scienceontheweb.net/gpsc_calendar_2020_17_download.pdf
    • http://gojavodevagajuw.mygamesonline.org/download_reader_gratis_windows_10.pdf
    • https://static.s123-cdn-static.com/uploads/4453732/normal_5fcc2a0de4ba8.pdf
    • http://sikalaporaka.22web.org/the_dragon_prince_s01e01_watch_online.pdf
    • https://static.s123-cdn-static.com/uploads/4373271/normal_5ff1e98a88a09.pdf
    • http://kibiwoki.iblogger.org/95934011741.pdf
    • https://cdn-cms.f-static.net/uploads/4380863/normal_601a57d5c9c77.pdf
    • http://dovulup.iblogger.org/b_pharmacy_admission_form_last_date.pdf
    • https://cdn-cms.f-static.net/uploads/4376359/normal_6046da03de565.pdf
    • https://cdn-cms.f-static.net/uploads/4421215/normal_60298aad7e3de.pdf
    • https://cdn-cms.f-static.net/uploads/4454995/normal_6033d2d7e53db.pdf
    • https://static.s123-cdn-static.com/uploads/4422147/normal_5ff0c3c3cc0b8.pdf
    • http://melowimaz.getenjoyment.net/fezilefuwugokuretas.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://gabatotudam.rf.gd/b._ed_biological_science_notes.pdf
    • http://xajezenu.epizy.com/application_areas_of_computer_graphics_in_education_and_training.pdf
    • https://uploads.strikinglycdn.com/files/30e0caf1-6844-4f45-a48c-c39e96d8316d/parasite_nick_drake_meaning.pdf
    • http://duwemanuwixam.atwebpages.com/matlab_for_engineers_5th_edition_solutions_manual.pdf
    • https://uploads.strikinglycdn.com/files/4ca0cea8-b220-4957-b649-44adabed8f46/happy_buddha_bookends.pdf
    • https://uploads.strikinglycdn.com/files/ece468ed-0ee1-4846-95f5-d478fd44c1a3/simmons_sd1000_review.pdf
    • https://uploads.strikinglycdn.com/files/58ae9ec5-c9e9-43c6-96fd-07f56dad830e/wonirefoxota.pdf
    • http://momedeturus.epizy.com/bonney_forge_gate_valve_manual.pdf
    • http://zinabukupomij.rf.gd/dibiz.pdf
    • https://uploads.strikinglycdn.com/files/d7718cf0-70db-4deb-9519-b48161c8044d/what_do_you_do_when_your_laptop_says_preparing_automatic_repair.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e820.bin
dbaa0cd83378112393375ccace3717e166f288d26f5a26a85baba0fbbe6dd953		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE820 5428 bytes
font_01_sfnt_off0000fa94.bin
375c30dbd1a32ae5d20a71d1450f28998dd4b47341de238ce229518da36f8986		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA94 11472 bytes

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