Malicious PDF — malware analysis report

Static analysis result for SHA-256 302443824e2da205…

MALICIOUS

PDF

72.4 KB Created: 2021-02-17 20:20:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 14891549991c8c5066cf3c86879c55ae SHA-1: b68a05a4802400f4f7764d8b13d0eb7bb7c383e3 SHA-256: 302443824e2da2050a4e95f37d772fabb03936359154e31737e4372613690e63
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=get+out+my+face+lyrics+dvbbs In PDF document text
    • https://cdn.sqhk.co/gudijupimeb/iihg4jb/dragon_live_wallpaper_for_pc.pdfIn PDF document text
    • https://gifuroromila.weebly.com/uploads/1/3/4/3/134377961/de9e39.pdfIn PDF document text
    • https://sidomepavoresob.weebly.com/uploads/1/3/5/3/135322675/c3d46aa.pdfIn PDF document text
    • https://cdn.sqhk.co/kifuzopeko/gcgj2gf/apache_attack_helicopter_shoot_to_thrill.pdfIn PDF document text
    • https://cdn.sqhk.co/tomubozes/fhjBhbS/timizidexiw.pdfIn PDF document text
    • https://fivitilanafime.weebly.com/uploads/1/3/5/3/135395402/podakerubafewumi.pdfIn PDF document text
    • https://wexarasi.weebly.com/uploads/1/3/4/3/134351888/lunuvakanemipagataso.pdfIn PDF document text
    • http://pafunote.iblogger.org/ruvoketep.pdfIn PDF document text
    • http://savuzugetorek.iblogger.org/daturanoxozigowofawemoti.pdfIn PDF document text
    • http://ruroraratotu.66ghz.com/44882641896.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://voxotili.epizy.com/ashes_cricket_2017_ps4_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wuzalugiseto/shinchan_cartoon_title_song_free.pdfIn PDF document text
    • http://rabibunipidozok.epizy.com/vojoneniwi.pdfIn PDF document text
    • http://ziwutaje.epizy.com/nezatitita.pdfIn PDF document text
    • https://s3.amazonaws.com/muvazi/ncc_song_video.pdfIn PDF document text
    • http://mapawobesatamo.rf.gd/puwarurojinig.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/64356377292.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/zuputibemoleposelikobola.pdfIn PDF document text
    • http://banitazivi.epizy.com/zewufakalebavugovulewati.pdfIn PDF document text
    • http://wazuvit.rf.gd/buffy_series_4_episode_guide.pdfIn PDF document text
    • http://dodemupisam.epizy.com/51124495391.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_off0000de67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE67 5500 bytes
SHA-256: 734ce7a8bad2f4cddfbb65fcdce8fffc1dc983c68ba96df680b0b4dc1bb137e8
font_01_sfnt_off0000f114.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF114 10232 bytes
SHA-256: b5156330df66618d4f06d66f236565dd91a52f65a6a5c2f6a7df30c1eafca1a3

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