Malicious PDF — malware analysis report

Static analysis result for SHA-256 80e672cef952837b…

MALICIOUS

PDF

75.6 KB Created: 2021-03-27 20:01:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 798394dd0df7309731293f1a15f80322 SHA-1: 1fb0c562f06ee35646d94d63ac3dfab7333c7228 SHA-256: 80e672cef952837b74393c521db5f2b11a13eed6d3d1c07d1f3001d90c222bf6
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of external URIs and the overall classification suggest the document is designed to trick users into visiting a malicious site, potentially leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://botokaw.ru/123?utm_term=cystic+fibrosis+management+guidelines+australia
    • https://cdn.sqhk.co/gufezitaxato/bxEghhK/spelling_word_games_for_5th_graders.pdf
    • https://static.s123-cdn-static.com/uploads/4404287/normal_5fd03a623f20d.pdf
    • http://dmgameplan.com/mosufokuduripy5c7h.pdf
    • https://cdn.sqhk.co/gasubapo/Agggdjj/fruit_and_vegetable_cutter_machine.pdf
    • http://inertbhjbj.ru/what_the_social_studies_definition_of_latitude85wse.pdf
    • http://cmb-accueil.com/ac_dc_greatest_hits_cd_walmarti9evj.pdf
    • http://tur8osale.site/how_much_is_the_2020_lexus_rx_350qro6p.pdf
    • https://cdn.sqhk.co/musutalivun/iyjgjid/81674166528.pdf
    • https://cdn-cms.f-static.net/uploads/4366009/normal_603fb2623ae41.pdf
    • http://magazinrf.xyz/32263894594oyxml.pdf
    • https://static.s123-cdn-static.com/uploads/4446492/normal_60030252d5a39.pdf
    • https://cdn.sqhk.co/fofateze/jeYT2xO/tikataro.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/6bc60800-21ab-4771-835e-6879c7172d0e/pilepuboxonezazajo.pdf
    • https://uploads.strikinglycdn.com/files/0d8b9417-91da-42a5-9dae-45bb516434e6/titefoxakizugixesebipo.pdf
    • https://uploads.strikinglycdn.com/files/93634c9d-8fb9-4c64-9196-d6647db6b5ed/93875514143.pdf
    • https://s3.amazonaws.com/degagaziv/faleki.pdf
    • https://uploads.strikinglycdn.com/files/45abd271-6505-4095-a9fd-75055998cf79/canon_ip90_driver_mac.pdf
    • https://s3.amazonaws.com/jakujakula/ffxiv_dark_knight_tanking_guide.pdf
    • https://uploads.strikinglycdn.com/files/f5a6f05f-d051-46b5-8bc4-a632d0009587/21649998332.pdf
    • https://uploads.strikinglycdn.com/files/848916bf-61e8-457e-8537-589a7973d5fc/wosokekifigaditorumal.pdf
    • https://uploads.strikinglycdn.com/files/ee46421e-e31c-4e25-ae4c-0e9440eaed56/honeywell_lynx_plus_manual.pdf
    • https://s3.amazonaws.com/jakujakula/mathematical_logic_meaning_in_mathematics.pdf
    • https://s3.amazonaws.com/vuzufexarevima/12204263411.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_off0000eabd.bin
4e95b9cde871d422ab35f3641ff29553711ee23f0e2b71f8e84309821cf1f5e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEABD 5488 bytes
font_01_sfnt_off0000fd56.bin
95e9aa198dd6075d396482a11cd75f720ae0b77d79c507b0fa1f6e6d6313fe8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD56 10432 bytes

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