Malicious PDF — malware analysis report

Static analysis result for SHA-256 67bfc74b3fdba29d…

MALICIOUS

PDF

79.5 KB Created: 2021-03-23 10:12:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 025d3939b65bd099736534a6350ac4de SHA-1: e511307c605eb766cdc829a0bc7c7c73d36c7f3a SHA-256: 67bfc74b3fdba29d7c9b781f4109fe4d0e91cb6b73a8fc7fc50f091ba0a799f5
124 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it's a phishing lure, specifically mentioning invoice or payment language. It also contains an embedded URL that is likely malicious. The ML classifier strongly flagged this PDF as malicious, and ClamAV detected it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/wix?keyword=lowes+plant+guarantee+policy
    • http://rowaxamapitowej.getenjoyment.net/10763559856.pdf
    • https://cdn.sqhk.co/devuzemalut/cjh0iiC/download_game_stick_empires_mod_apk.pdf
    • http://workshop-fb.ru/84837953578t7cr9.pdf
    • https://cdn.sqhk.co/xenivoronizu/djdBcmx/4518155509.pdf
    • http://phillipen.online/ccna_2_exam_answers_20188cqol.pdf
    • https://cdn.sqhk.co/jivazufevi/cejcq1N/89334064665.pdf
    • http://suzupuwejal.mygamesonline.org/wevajekewukatunebegufu.pdf
    • https://cdn.sqhk.co/nazujovo/gfxggje/xuvezivisisu.pdf
    • http://idealica-italiaofficial.site/paysafecard_codes_generator_apk2zv2p.pdf
    • http://community-day.ru/bunty_aur_babli_full_movie_foumovieswmhtq.pdf
    • http://gesetaxoxu.sportsontheweb.net/how_to_reset_samsung_galaxy_s6_back_to_factory_settings.pdf
    • https://cdn.sqhk.co/sejixikerut/jaxLoji/movedigojopod.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rivenoke.onlinewebshop.net/14936728286.pdf
    • https://uploads.strikinglycdn.com/files/49f45b1b-dc34-4047-9933-6bc636745fab/weider_ultimate_body_works_weight_limit.pdf
    • https://uploads.strikinglycdn.com/files/4c9c1bfe-0010-4927-bbf3-9d83fe45cd94/xepaf.pdf
    • https://uploads.strikinglycdn.com/files/e1107d53-d642-428c-adb7-0bf1ceb1c02f/95333974389.pdf
    • https://uploads.strikinglycdn.com/files/87e44173-0eac-4420-8e2b-89cf048c7f3f/california_economic_loss_rule_and_negligent_misrepresentation.pdf
    • https://uploads.strikinglycdn.com/files/7f3bbec1-5f22-431b-8abf-55e83a2378fe/dd_online_gameplay.pdf
    • https://s3.amazonaws.com/sagotomagin/31999120153.pdf
    • https://s3.amazonaws.com/donukadizolin/narovibarojale.pdf
    • https://s3.amazonaws.com/zupenafud/why_wont_my_washing_machine_drain_the_water.pdf
    • https://uploads.strikinglycdn.com/files/0b1d8c6d-4dcd-44cb-9136-0369638d25b9/nigobiwok.pdf
    • http://furafep.onlinewebshop.net/how_to_convert_file_to_word_doc_for_free.pdf
    • https://uploads.strikinglycdn.com/files/ef6d909c-2aab-4423-ae3f-6a68aeb67e1c/93866386632.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_off0000f755.bin
57bb18b7b8a0e8573edae6f154fd6cef2187ffd964154f792b0a0145891cbeb7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF755 5236 bytes
font_01_sfnt_off00010956.bin
a49259eb3441cbb8800a3ad361b7caacf9ca95cc17a284ade1b67f70ce4a9b79		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10956 11412 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.