Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f013a2ae3a913c0…

MALICIOUS

PDF

64.6 KB Created: 2021-02-14 02:45:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ca725353795f511576c3a82556be3c9d SHA-1: dc9005a286248b7aa0af0cfcc690663cb01a26fb SHA-256: 8f013a2ae3a913c089380afe03aef8d9d0992dd71df0f39f9034983bd608b91f
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://bologen.ru/wix?keyword=minecraft+knockback+stick+xbox PDF link annotation
    • https://cdn.sqhk.co/dejuxafe/MNbjihb/crowd_city_game_online_unblocked.pdfIn PDF document text
    • https://cdn.sqhk.co/xenudipu/fhehiCj/nebulous._io_hack_apk_plasma.pdfIn PDF document text
    • https://cdn.sqhk.co/pimepojuti/ghhcjjk/big_bang_theory_full_episodes_dvd.pdfIn PDF document text
    • https://cdn.sqhk.co/dikozogub/ifijhaE/96258502999.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxodokoju/NBRribq/english_story_for_beginners_mp3.pdfIn PDF document text
    • https://cdn.sqhk.co/zefafulolit/fZyiawV/toruzewav.pdfIn PDF document text
    • https://cdn.sqhk.co/tinipuded/t3jjD8X/bubble_shooter_with_friends_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/sosobita/idLhgoW/indycar_races_in_usa.pdfIn PDF document text
    • https://cdn.sqhk.co/mavozopofug/ig5P4pD/26485463282.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450639/normal_5fdc3870a9493.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fawivemepogu.epizy.com/zetoxolutexug.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/59432211807.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/best_free_editor_app_for_android.pdfIn PDF document text
    • http://dinixikidimed.epizy.com/ipcc_special_report_october_8_2018.pdfIn PDF document text
    • http://mobosefevexaxep.rf.gd/escoffier_le_guide_culinaire.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_off0000bffd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFFD 5120 bytes
SHA-256: bcd46885647b2a0caa74872e5c5a73ac066b6d16c41b6fb0a56fdd7c1976d3c5
font_01_sfnt_off0000d18e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD18E 9892 bytes
SHA-256: facb7f3a8a7c274754701d3d1ffd8aa12f054bb6b60f58c50e9422294405edd3