Malicious PDF — malware analysis report

Static analysis result for SHA-256 625d979d12719f00…

MALICIOUS

PDF

70.2 KB Created: 2021-02-16 00:42:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9d46c9a04d28f59ef61bb6442ddb98df SHA-1: 395046959afdf2fb20b24debcb36c8b945ae37fe SHA-256: 625d979d12719f00bd2401ec2bbe674bfc31bac906bb8a962016755d40eb57ba
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jottigo.ru/wix?keyword=vocab+level+c+unit+14+answers PDF link annotation
    • http://pedalini.club/vermintide_2_launch_error6q8rp.pdfIn PDF document text
    • http://tifeguga.22web.org/75993214431.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409826/normal_6029f8b1bd10c.pdfIn PDF document text
    • http://pimebujeben.66ghz.com/97956221935.pdfIn PDF document text
    • http://tisiner.iblogger.org/ashrae_hvac_systems_and_equipment_handbook.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426072/normal_6001e7a8a2e56.pdfIn PDF document text
    • http://nizorunux.iblogger.org/marksheet_of_class_10_bihar_board_2019.pdfIn PDF document text
    • http://bbbbbbbbeeee.space/37182488208bgqoe.pdfIn PDF document text
    • http://wordwild-store.com/gififegukeximogid5895.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379359/normal_5fd6ee656005e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411270/normal_5fdd3800188ea.pdfIn PDF document text
    • http://besudigedabax.iblogger.org/dreams_the_cranberries_sheet_music.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ledajisaweja.rf.gd/jivuwerowezonekokosoj.pdfIn PDF document text
    • http://gokobuvutojo.epizy.com/dubai_airport_aerodrome_manual.pdfIn PDF document text
    • http://nepopujadulipid.epizy.com/angles_in_polygons_worksheet_table.pdfIn PDF document text
    • http://benugafudom.epizy.com/jiotv_android_tv_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/84999022289.pdfIn PDF document text
    • http://fokogemuzaraw.epizy.com/baghban_movie_dialogues.pdfIn PDF document text
    • http://demuremapinob.epizy.com/music_sheet_holder_for_drums.pdfIn PDF document text
    • https://s3.amazonaws.com/rozebofukixus/antares_autotune_free_vst.pdfIn PDF document text
    • http://lekipuvuji.epizy.com/46265486312.pdfIn PDF document text
    • http://panadokopejed.epizy.com/formazione_aoristo_passivo_greco.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_off0000d6b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6B4 5192 bytes
SHA-256: 9c9e8a11e7be65345953e712431e8c6c4abf8c9ed52d88d499975d41b839c799
font_01_sfnt_off0000e88c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE88C 10144 bytes
SHA-256: 432ddc58a11403395811bae078e99cfd81bb52d101c6a92ed24bc31b02c94fd9