Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffee32f2c9925b9e…

MALICIOUS

PDF

95.0 KB Created: 2021-03-30 12:46:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b29652d7bc6a427a749a18653f338fd SHA-1: 7b578279ccbadcf09019d0b7de50bd5576b2fb77 SHA-256: ffee32f2c9925b9e75a89c1768c6b132396d39e024c85d5dca1a0d6c4a9e177b
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF as malicious with high confidence. The document body, though heavily obfuscated, contains text fragments that, combined with the embedded URL, suggest a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://pelibifir.ru/123?utm_term=b.+a+pass+movie+free++filmywap
    • http://dukafufuxona.iblogger.org/coby_studio_wireless_headphones_review.pdf
    • http://cherrypimp.online/8302958803cnyux.pdf
    • https://zirorimasarikar.weebly.com/uploads/1/3/4/1/134108573/226737d121faa6f.pdf
    • http://nonretloli.site/passive_voice_simple_present_and_simple_past_exercises_multiple_choicezhtcw.pdf
    • https://wefolukozik.weebly.com/uploads/1/3/1/4/131406413/2643536.pdf
    • https://cdn.sqhk.co/jilebodetifa/aKhjVTt/carnival_can_bean_bag_toss_game.pdf
    • http://titanovyi-filtr.ru/49611731168mwst7.pdf
    • https://kufaxalerix.weebly.com/uploads/1/3/1/4/131453821/f14530065.pdf
    • http://mignonette.space/996180168965rlga.pdf
    • https://ralunudedosamot.weebly.com/uploads/1/3/4/8/134856058/sisukunu.pdf
    • http://mp4.design/pubupitawixokoxuxomadtbf.pdf
    • https://cdn.sqhk.co/kuwusemob/hgjfEja/pdf_annotator_free_portable.pdf
    • http://pressit.space/6278703485nq5y4.pdf
    • http://study-english-05.site/vitudozamixomijusimuz7zif4.pdf
    • https://cdn.sqhk.co/soxoxefumuv/iarOkeM/19984548624.pdf
    • http://karnaval.host/72090605633ak7i1.pdf
    • https://cdn.sqhk.co/sunawopi/haN6Egg/reaper_miniatures_bulk.pdf
    • http://zerkalo-fugicar.website/how_to_make_a_sliding_bookcase_in_minecraftqtmi9.pdf
    • https://cdn.sqhk.co/kotoweraga/HDygdbi/buvobejajopugiluv.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://fixiwerasame.rf.gd/80592538610.pdf
    • http://tiwadelir.rf.gd/classification_of_living_things_questions_and_answers.pdf
    • http://donamofarapim.rf.gd/buku_akuntansi_manajemen_baldric_siregar.pdf
    • https://6200e599-3f2f-4e3e-ab45-e6977ed7e777.filesusr.com/ugd/f8de3e_3d514d381b3a4d76998edc34ae8a2332.pdf?index=true
    • http://zisepuz.rf.gd/is_bram_stokers_dracula_book_scary.pdf
    • https://181f3bdf-810f-4c34-abb3-9f3362228cd6.filesusr.com/ugd/30415f_1bb9fb5e5e2947bbb35ae7ae6f269dac.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000111fe.bin
abf2420a82e37afc9731a1c3c9a1b538e9fe0d846e5ccd049d840cbd9fb75bb1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x111FE 4984 bytes
font_01_sfnt_off00012306.bin
13ee1aeb6315ecaf2c0bdd566bbd93442a48aaacb9dd7f40ab31952568194d54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12306 11524 bytes
font_02_sfnt_off00014a9a.bin
e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14A9A 16164 bytes
font_03_sfnt_off00015fb1.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15FB1 4324 bytes

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