Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e2cc20f435d21fa…

MALICIOUS

PDF

78.0 KB Created: 2021-02-06 09:59:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d90c842a43ecf73f1ee46adfaaec50bb SHA-1: 50f564b3092d7c2f400c068faff4a1f7b7fc57b8 SHA-256: 5e2cc20f435d21fa25366c66a37c4b4a67a6dc5e2e6484bd72f1db0d3c48f465
194 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
  • 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.
  • 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.
  • 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://yafferge.ru/wb?keyword=ap%20grama%20sachivalayam%20key%20sheet In PDF document text
    • https://cdn-cms.f-static.net/uploads/4423133/normal_5fd8c0e2f34a0.pdfIn PDF document text
    • https://cdn.sqhk.co/pusutekexu/he6jdzx/me_walmart_app_not_working.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384463/normal_5fecf924bb9d0.pdfIn PDF document text
    • https://cdn.sqhk.co/xegogeji/ifMijTr/stickman_the_fight_steam.pdfIn PDF document text
    • https://cdn.sqhk.co/zosiwutu/AiigiDt/duxuwekemovokigekezakil.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493876/normal_5ffade37b76da.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388598/normal_5fe3b06b4e0a1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451206/normal_60090906e458e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lusegokaves/colorfy_plus_cracked_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/xapijifas/29844587331.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/8988006271.pdfIn PDF document text
    • https://s3.amazonaws.com/kasuwevovog/31251299371.pdfIn PDF document text
    • https://s3.amazonaws.com/godoremitiwuja/dheeme_dheeme_audio_song_video.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/battleship_game_free_for_windows_8.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/tenant_30_day_notice_template_california.pdfIn PDF document text
    • https://s3.amazonaws.com/mipeboro/rise_of_kingdoms_lost_crusade_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/game_bully_anniversary_apk_data.pdfIn PDF document text
    • https://s3.amazonaws.com/sobaketemu/ovarian_cyst_postmenopausal_guidelines.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_off0000f2ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2AB 5564 bytes
SHA-256: e69a16d1f8f04347cb7cc42e2b8057b105858c5ff588c37148e7c3971451a5bd
font_01_sfnt_off00010580.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10580 11056 bytes
SHA-256: 5466e3cc14a9456f3f16ef40946a89e83f87f58876d15cad2736d7f66a354cfc

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