Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3448a634a71540f…

MALICIOUS

PDF

104.8 KB Created: 2021-02-02 12:36:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: b17e0b08c60d1d7b82208ed8a02c3b88 SHA-1: fd10f327cda063e6bd0b202d800902ece4b748bf SHA-256: e3448a634a71540f355395cd82a15f92e0424e9e4018287b3695cf9c3ec9e963
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristics suggest the document is designed to trick users into visiting a malicious site, likely for credential harvesting or further payload delivery.

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://maypoin.ru/aws?utm_term=yosemite+half+dome+hike+guide PDF link annotation
    • https://cdn.sqhk.co/gisatajofo/jcXh4Xf/83712111195.pdfIn PDF document text
    • https://cdn.sqhk.co/vutexexukus/gck0zIz/dhoom_machale_hrithik_roshan_ke_film.pdfIn PDF document text
    • https://cdn.sqhk.co/jogekiluse/Cji9wjh/26748211236.pdfIn PDF document text
    • https://cdn.sqhk.co/jupozaregu/icoiaig/asteroids_atari_game_free.pdfIn PDF document text
    • https://cdn.sqhk.co/kitaparek/S2OnaQ4/difference_between_double_clutching_and_rev_matching.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501998/normal_5ff958b218513.pdfIn PDF document text
    • https://cdn.sqhk.co/bulunazi/dgj4sTJ/vogefevolasinubej.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465687/normal_60010f6fe072e.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/gd5ihj1/oscar_and_parrot_fish_tank_mates.pdfIn PDF document text
    • https://cdn.sqhk.co/wajerewuwer/jjcQiee/idle_human_female.pdfIn PDF document text
    • https://cdn.sqhk.co/rakujolo/jmjhgML/90885733991.pdfIn PDF document text
    • https://cdn.sqhk.co/kixituvelil/hagj4hj/uphill_rush_3_unblocked.pdfIn PDF document text
    • https://cdn.sqhk.co/videgogaf/Xshhig9/nutovixeraj.pdfIn PDF document text
    • https://cdn.sqhk.co/depadukat/gfHgehf/the_last_maverick_survival_pro_mod_apk.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/dekogamik/49934447305.pdfIn PDF document text
    • http://nuvijexuwafado.rf.gd/react_dashboard_templates.pdfIn PDF document text
    • http://defipezisezujor.rf.gd/53054886274.pdfIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/cancer_information_analyst.pdfIn PDF document text
    • http://bakotisimipivok.rf.gd/pupawemiwinuselopifiviti.pdfIn PDF document text
    • https://s3.amazonaws.com/vovopafubipu/49171476207.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/kentuckiana_court_reporters_repository.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_off00015c81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15C81 5248 bytes
SHA-256: e306601be85e2da5a64890d03a4694d6b115dd0e7ce2d9a8742f77f705d5bbb3
font_01_sfnt_off00016e3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16E3B 11548 bytes
SHA-256: 134f47ac78a50c8a3a786b857c4dd661890335ad90cf664b337bc11d409819a3

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