Malicious PDF — malware analysis report

Static analysis result for SHA-256 14e2f3842c3adce8…

MALICIOUS

PDF

68.7 KB Created: 2021-03-23 14:26:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96fc7f0a5ca53087bfb8d024d04ec2a1 SHA-1: a69b72725da73949495e7b50e7860df2b4e90805 SHA-256: 14e2f3842c3adce8533895e0a79a39256ffb6f1afda4b4bf458bf55eb6a63737
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 a suspicious domain, suggesting it's part of a phishing or malware distribution campaign. The document body, though partially corrupted, indicates a lure related to a 'school supply list'. No scripts were extracted, but the presence of external URIs and the overall detection suggest the PDF is designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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=scott+charter+school+supply+list
    • http://fredo.run/acrobat_dc_readerglii0.pdf
    • https://cdn.sqhk.co/laloropaki/hgeihpN/pimareduri.pdf
    • http://goodxday.xyz/gali_chirugali_dj_song_telugu9msco.pdf
    • http://hookup673.site/galovejazaforo3pp.pdf
    • https://cdn.sqhk.co/kinerufi/FjcfIhj/at_t_u-_verse_tv_packages_and_prices.pdf
    • https://cdn-cms.f-static.net/uploads/4485329/normal_603b968fcf844.pdf
    • https://cdn.sqhk.co/morureju/Jqhihji/susitib.pdf
    • http://tevfikyuce.xyz/548646555122o8m7.pdf
    • https://cdn.sqhk.co/nezerozara/pvwxhdl/weraleserolajigawa.pdf
    • http://my-favshope.online/watch_how_to_train_your_dragon_homecoming_trailer8ip3l.pdf
    • https://cdn.sqhk.co/mugukawi/egdniaK/84924483062.pdf
    • https://cdn.sqhk.co/kizofapekeku/hjbUyje/54967606099.pdf
    • https://cdn-cms.f-static.net/uploads/4386076/normal_60363509c29b8.pdf
    • https://cdn-cms.f-static.net/uploads/4381962/normal_60108e0cab8ec.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/82a3ab20-a606-45b3-aaa4-c06847f66e42/dantes_inferno_game_final_boss.pdf
    • https://uploads.strikinglycdn.com/files/a77761a0-9f9b-4cdb-9e31-e115511c5b6e/the_carrot_seed_book_lessons.pdf
    • https://uploads.strikinglycdn.com/files/08e6017c-e8bc-48a4-8ece-8d2b517f2758/pabenimu.pdf
    • https://uploads.strikinglycdn.com/files/aff3aaab-0456-4101-9004-d58c987318cb/57668921482.pdf
    • https://uploads.strikinglycdn.com/files/342a656c-068b-43cf-984f-97600ebf3919/segeduw.pdf
    • https://uploads.strikinglycdn.com/files/c01f7d9b-637f-4ad3-9208-6c3270c3438a/golimakurikavuz.pdf
    • https://uploads.strikinglycdn.com/files/5d8c3133-54b7-48fc-927c-9629ee5e3812/juzomiwiraxalegapulite.pdf
    • 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_off0000d09a.bin
fefb9c0fe1120bfc8fef064ccff5301b8bec15b0151fec73cfae6912f7d564ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD09A 5228 bytes
font_01_sfnt_off0000e262.bin
a57d92fdb053a9336ef5e5cabbc017f0ea14a8685b043e07e5c057ac56466208		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE262 10188 bytes

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