Malicious PDF — malware analysis report

Static analysis result for SHA-256 884a14b91c8421b4…

MALICIOUS

PDF

72.2 KB Created: 2021-03-20 00:40:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a7f168abd1585be646ee7dc9a8d3a03d SHA-1: e2b80a59afe8d37bb031f518bd7e9c3f1eade247 SHA-256: 884a14b91c8421b4296cbc4260c2352e7bcf4984ed95c7f3e6e2f810c3ad0e0e
152 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support its malicious nature. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to lead the user to malicious content, likely for credential harvesting or further malware deployment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8212

Heuristics 3

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/award?keyword=cause+and+effect+essay+writing+pdf
    • http://tevutubiwij.getenjoyment.net/lesujazedavonow.pdf
    • http://my-credit.info/kigojokozomanivutisl6b4d.pdf
    • http://sizegoduxuxa.mygamesonline.org/como_converter_para_autocad.pdf
    • http://poposiruta.mywebcommunity.org/5966482522.pdf
    • http://velodarimu.iblogger.org/55325932053.pdf
    • http://musumavugas.iblogger.org/gedejegari.pdf
    • http://antonioit.space/how_to_print_on_zebra_gk420dsewei.pdf
    • http://lukisasore.mywebcommunity.org/41378089111.pdf
    • http://laludinemolat.sportsontheweb.net/blank_political_map_of_the_world.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://bidasumibave.epizy.com/cartoon_cartoon_video.pdf
    • http://fokemadet.epizy.com/delirium_book_age_rating.pdf
    • http://giruwixavitunav.epizy.com/add_voicemail_password_android.pdf
    • http://lanikudawojag.rf.gd/manual_cbx_200_strada.pdf
    • http://zogoxuf.atwebpages.com/how_to_reset_a_ti_84_plus_ce_calculator.pdf
    • https://882e4f53-a7e1-4d4a-89e8-a6e6d9f9b805.filesusr.com/ugd/9a13d2_8fadc91ea006439d9c0b3294b343c09f.pdf?index=true
    • http://junilumaja.rf.gd/ge_profile_advantium_120_microwave_not_working.pdf
    • http://pelebirepopo.onlinewebshop.net/cerebro_creativo_y_ludico.pdf
    • https://4a39c6c9-989b-4d11-b2d8-cc0becc7f193.filesusr.com/ugd/ef0078_3e8a20ecce26435c9c76569170689d4c.pdf?index=true
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010d4f.bin
de35ace1fc3cb20646fdb89250228881a1046e310d021202a965604b4d95079f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D4F 5388 bytes

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