Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee63d42feac2048f…

MALICIOUS

PDF

68.1 KB Created: 2021-01-20 22:49:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: c718e32eb7e1f0f8c588a4044ae91768 SHA-1: 401208713c2ab19ac3f7f9b8e21a6eadca498bd2 SHA-256: ee63d42feac2048fef38e6ef41334da99d27a4895afdcc638a9da895f680594d
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search result for a specific product, likely to trick the user into clicking it. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing or trojan PDF. No scripts were extracted, but the presence of an external URI suggests a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/wb?keyword=fitbit%20charge%203%20charger%20stand PDF link annotation
    • https://site-1247446.mozfiles.com/files/1247446/n__chromatus_care_sheet.pdfIn PDF document text
    • https://site-1166068.mozfiles.com/files/1166068/bubebakadolinigirozokajo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489255/normal_5fd7d12f298c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365621/normal_5f8bf65b90a88.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493266/normal_5ffe1bf3202dd.pdfIn PDF document text
    • https://site-1180826.mozfiles.com/files/1180826/jenaruximonokuguvibavum.pdfIn PDF document text
    • https://site-1168264.mozfiles.com/files/1168264/noxebuzekewanebexexefalaw.pdfIn PDF document text
    • https://site-1174800.mozfiles.com/files/1174800/vray_glass_material_3ds_max_free.pdfIn PDF document text
    • https://site-1176273.mozfiles.com/files/1176273/vuxezodosepuvamepapemam.pdfIn PDF document text
    • http://lorebip.22web.org/household_budget_template_xls.pdfIn PDF document text
    • http://midorezif.iblogger.org/vshare_ios_11_free.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/pezofut/wisajivozoziv.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/technical_drawing_worksheets.pdfIn PDF document text
    • http://moxododokojuke.epizy.com/2013_bmw_x5_review_consumer_reports.pdfIn PDF document text
    • http://puzexexaniledow.epizy.com/babble_synonym_formal.pdfIn PDF document text
    • http://keruxenuriwi.epizy.com/algorithms_in_c_robert_sedgewick_github.pdfIn PDF document text
    • http://zowomazo.epizy.com/bulididim.pdfIn PDF document text
    • https://s3.amazonaws.com/laradusa/30596567430.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/android_apps_that_pay_you_money_reddit.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_off0000cd13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD13 5428 bytes
SHA-256: 954891d455874d6e4db09a14650c69b53ec3c6dc585a3580096da1ead9c625e6
font_01_sfnt_off0000df80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF80 10056 bytes
SHA-256: 65459a8e37b8bb08cb9f37f74f66ea959d8c4d2fd10e2f25f09210e9ed445d4a