Malicious PDF — malware analysis report

Static analysis result for SHA-256 15278601c06a5be5…

MALICIOUS

PDF

78.0 KB Created: 2021-03-14 03:44:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ce4ba9f89769c9c3e45a06ff71b2b275 SHA-1: d9b31f241e8ff6cf503023a7cc98de0c4f223705 SHA-256: 15278601c06a5be58ddde22b5a775bb1a78f7d1cd04a6ca9f16991a4e204d827
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to 'https://jumiwimov.ru/wix?keyword=ge+self+cleaning+electric+oven+manual', which is likely a phishing lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to trick users into visiting a malicious site, potentially for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://jumiwimov.ru/wix?keyword=ge+self+cleaning+electric+oven+manual
    • http://zuvels.xyz/loxapezijawalotesokijokesr01r.pdf
    • http://dashcamtopbest.com/leravozatimuxefedulerulef9tt.pdf
    • http://afracheat3.xyz/fupodiwoxewivojuzarsq7ok.pdf
    • https://cdn.sqhk.co/nakijalufiw/kmWhbid/gefozolorefapona.pdf
    • https://cdn.sqhk.co/nikazurokuv/4jga9gc/top_20_black_male_hairstyles.pdf
    • http://voztrans.ru/making_habits_breaking_habitsio8gq.pdf
    • http://stavki.link/daxogilufowolaruti9chwp.pdf
    • http://zotarojeloxin.22web.org/the_final_empire_mistborn_book_1.pdf
    • https://cdn.sqhk.co/jogeguzotire/b1hjRgh/96428867262.pdf
    • http://gakukuketisalum.scienceontheweb.net/leruzudu.pdf
    • http://veviwumifuvemuz.mypressonline.com/pijixufule.pdf
    • https://cdn.sqhk.co/furugilenu/uwnif0H/ark_wyvern_egg_command.pdf
    • http://vimobewawulipiz.mypressonline.com/martin_luther_king_famous_speech_i_have_a_dream_text.pdf
    • http://theporte.xyz/how_many_radians_are_in_180_degreesv4cx6.pdf
    • http://1fps.ru/50757310526kmi1n.pdf
    • http://mpvideo.org/bts_best_songs_playlist2yddf.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://6ec3981f-6443-463b-a164-91fc69f101d9.filesusr.com/ugd/7603ae_7a060034b3ed46db8cf5a0e61cd5be10.pdf?index=true
    • http://bumejefivoxigo.myartsonline.com/malibu_maintenance_schedule.pdf
    • http://sesugemedolaf.rf.gd/free_images_pixabay.pdf
    • http://segimoto.myartsonline.com/70472561099.pdf
    • https://db532842-334f-4efb-8993-e67ec8f20ff5.filesusr.com/ugd/bc5be3_b7270666242c4264b1ad89737479050d.pdf?index=true
    • https://99442e0c-e188-470f-b1e9-a2082f9e7f28.filesusr.com/ugd/2274a7_336744440d4c46d8a466087096c8242a.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f34f.bin
99ef7c1104e8cc9bc634418ea12ab52a6f04ef2f09379e7b5fb30eeed9ac187b
pdf-font-stream PDF embedded font (sfnt) at offset 0xF34F 5292 bytes
font_01_sfnt_off0001054c.bin
5b17027f47fe102272a598996e9225d96d35cd41711b4e86f74584b09bb94452
pdf-font-stream PDF embedded font (sfnt) at offset 0x1054C 10856 bytes