Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e0ceaafe73b3afd…

MALICIOUS

PDF

72.2 KB Created: 2021-03-21 22:25:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86f494de41fe2daf0dc50d2bf1f1494f SHA-1: 4f9c2bcaeb32c52071f7ec2940e0b0fc7c46f0e0 SHA-256: 8e0ceaafe73b3afd8f53110599d3c530cefa9df62e815d3310fa062d9e2d13f8
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing attempt. The document body, though partially corrupted, suggests it is disguised as a 'Webasto heater owners manual'. It contains an external URI pointing to a suspicious domain, likely intended to lead the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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://kuzutuzo.ru/strik?utm_term=webasto+heater+owners+manual
    • http://bilapak.66ghz.com/definicion_de_agorafobia.pdf
    • http://telemprom.xyz/togafupafulenukenipawkhhe2.pdf
    • http://citrus-fruit.space/wow_armies_of_legionfall_rep_guide1i1qk.pdf
    • https://cdn-cms.f-static.net/uploads/4459463/normal_6038d3114c2df.pdf
    • https://cdn-cms.f-static.net/uploads/4404964/normal_6015296d7eef5.pdf
    • https://cdn-cms.f-static.net/uploads/4415051/normal_6034c2a39ad95.pdf
    • https://static.s123-cdn-static.com/uploads/4426822/normal_5fe196741e669.pdf
    • http://fallofelin.online/is_the_silmarillion_before_the_hobbithiyqh.pdf
    • http://profit-makers.club/775587226105nns6.pdf
    • http://xunawuloraxoru.22web.org/caitanya_bhagavata.pdf
    • http://docita.fun/delivery_order_form_templates_free_sample3ixnw.pdf
    • http://bezigex.iblogger.org/yakutat_alaska_fishing_guides.pdf
    • http://wulebiful.iblogger.org/horror_full_movies_english.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/daxemo/source_code_imdb_parents_guide.pdf
    • https://uploads.strikinglycdn.com/files/46102dd8-c7fb-4aa6-93f0-78ba73afb248/what_happened_to_theresa_in_the_lying_game.pdf
    • https://uploads.strikinglycdn.com/files/1f8e5c5c-3d25-40a3-bf7b-ea78f74e856b/rain_dial_rd-600-r.pdf
    • http://xamojaxul.epizy.com/56464940497.pdf
    • https://s3.amazonaws.com/gezejoputiwinu/17856180342.pdf
    • http://pirixifivojove.rf.gd/56470733911.pdf
    • http://pumobopebog.epizy.com/mimaxozil.pdf
    • https://s3.amazonaws.com/tobito/wheel_of_time_book_11_free_download.pdf
    • https://uploads.strikinglycdn.com/files/497298e9-f7a2-4cfe-aaf7-d435afe6bedb/66288683322.pdf
    • https://uploads.strikinglycdn.com/files/745801cd-3d23-4f4d-96c6-3741107ed529/5589762753.pdf
    • https://uploads.strikinglycdn.com/files/ff68acce-6933-410b-9c7f-06329f3f52b8/meade_etx_125_telescope_accessories.pdf
    • http://lojifasipok.rf.gd/bebuforozage.pdf
    • https://s3.amazonaws.com/vavale/dstv_family_channels_guide.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_off0000de32.bin
996a9a47b8dd5107055a543fcc120ecfbd13881af5196b247a2d5e552e1028ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE32 5172 bytes
font_01_sfnt_off0000efb4.bin
a46e09b6648cf19aa4ffccee1a003c6f3a95627e5d8fd5fcdd4dbc36051e3afb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFB4 10416 bytes

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