Malicious PDF — malware analysis report

Static analysis result for SHA-256 78cbec4783cc502d…

MALICIOUS

PDF

78.7 KB Created: 2021-03-24 10:36:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 07c4252652637350a1335acfa725713a SHA-1: 0e2096c3e2e25bf556a285a42b556ce9a3013325 SHA-256: 78cbec4783cc502da328a8e4a4d23415a5d533081adddca7a1a5b12078c1485a
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a website disguised as a game walkthrough, which is a common lure for phishing or malware delivery. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious resource.

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://zajinet.ru/123?utm_term=grim+fandango+remastered+walkthrough+and+trophy+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4411915/normal_604fdd8c1c754.pdfIn PDF document text
    • http://pemojubeku.iblogger.org/printable_immunization_form_3231.pdfIn PDF document text
    • https://cdn.sqhk.co/sebetite/eQZuf7X/grandpa_and_granny_house_escape_mod_menu.pdfIn PDF document text
    • http://zezomaxijuduj.22web.org/what_do_the_different_colors_of_rosary_beads_mean.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371244/normal_5ff9ca034645c.pdfIn PDF document text
    • https://cdn.sqhk.co/gulifunanale/SzjfFhe/9742173824.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxeromewime/UTOeahe/new_bollywood_song_ringtone_2019_free_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gikifipililiza.epizy.com/why_isnt_my_dryer_not_heating.pdfIn PDF document text
    • https://s3.amazonaws.com/vefagotoje/76439044453.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/xavuvinojafidabew.pdfIn PDF document text
    • https://s3.amazonaws.com/fonibinaraj/ravapabin.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/electrostatic_precipitator_project_report.pdfIn PDF document text
    • http://notizawudix.epizy.com/maroon_5_maps_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2449c654-fc45-4417-a097-59d41acd0133/what_is_the_bible_scripture_for_today.pdfIn PDF document text
    • https://s3.amazonaws.com/minaxigevani/22887424702.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f2402a6-d0f2-472f-9dff-f63028a3c39e/14677285952.pdfIn PDF document text
    • http://podaviloridi.rf.gd/88393179404.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78cd465e-133e-4a52-b747-073d4e8430e6/mathematical_statistics_and_data_analysis_3rd_edition_solutions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a268e40a-3b5a-4f7b-9acf-12e1a3917bea/windows_10_office_wont_open.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ae48309-f132-46df-810a-e5782b5eaba7/how_to_change_vivofit_jr_band.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_off0000f4e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4E5 5744 bytes
SHA-256: 726d86442f0c21b7eb18e00b1a7c6cda4fa3780d0a4aea2fb54fde0f8c25a2f6
font_01_sfnt_off00010867.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10867 10784 bytes
SHA-256: 7985260975ea03e628979d3c7e59654cc9c56f6607f0959b05dbbd828f705f6b

Open this report in the interactive analyzer, or submit your own file for analysis.