Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4efa72d2a26ea1b…

MALICIOUS

PDF

88.7 KB Created: 2021-02-28 00:43:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 9fb761d56473cbe81c89d89c90c9e849 SHA-1: 269de8144a27b921e386814e6cc80b432cc3695c SHA-256: c4efa72d2a26ea1be4a5e9eb7e68e9ca909cc410ce52bbc5ee42ce0039589884
96 Risk Score

Malware Insights

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

The PDF document contains a lure related to watching a movie online, which is a common tactic for phishing or malware distribution. The embedded URL points to a suspicious domain, and ClamAV detection confirms its malicious nature. The ML classifier also strongly indicates maliciousness, supporting the phishing/malware download attack pattern.

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://resalured.ru/strik?utm_term=watch+twilight+saga+eclipse+full+movie+online+free+in+hindi PDF link annotation
    • http://hookup157.fun/valujedibesofokedabex5j80.pdfIn PDF document text
    • http://lupelev.22web.org/zumenovabadil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475741/normal_5fd97f2ac6923.pdfIn PDF document text
    • http://medebupima.sportsontheweb.net/91224162156.pdfIn PDF document text
    • http://kemamibuke.mygamesonline.org/how_to_get_the_new_rock_pet_in_adopt_me.pdfIn PDF document text
    • http://mylic.ru/free_whatsapp_for_iphone_7_plusu3b9s.pdfIn PDF document text
    • http://xenalebosob.scienceontheweb.net/31401965186.pdfIn PDF document text
    • http://tepoparupomo.medianewsonline.com/how_to_make_drum_beats_in_garageband.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://vanofasara.epizy.com/vba_set_sheet_name_cell_value.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/34276126140.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/citations_du_petit_prince_sur_la_rose.pdfIn PDF document text
    • https://s3.amazonaws.com/satudifin/apple_music_android_songs_not_playing.pdfIn PDF document text
    • http://xolemobubusosi.rf.gd/template_kaos_polos_hitam_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/mf_356_loader_pack.pdfIn PDF document text
    • http://fikikozazilut.rf.gd/chemical_bonding_pogil_activity_5_answer_key.pdfIn PDF document text
    • http://zowozuzibo.epizy.com/free_adobe_after_effects_promo_templates.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11035 5616 bytes
SHA-256: b4f46c5c83435c083c7239113ce327ad97d9edbf320b990fa62773b64d0dde7c
font_01_sfnt_off00012346.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12346 10552 bytes
SHA-256: 1d77a0d6fb709e32cdc6115d006e509426f0ec10dc2a39826422dcc2f7773dc6
font_02_sfnt_off0001476c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1476C 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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