Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2969c9cc837b2bd…

MALICIOUS

PDF

76.5 KB Created: 2021-03-14 07:02:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-28
MD5: ef02266f2cb84f16d2dc475c5059129d SHA-1: 9cda071b46104929dbe336594d70c0c34855cf28 SHA-256: b2969c9cc837b2bd9d79f52976a52399351cb354757cc31db9df0b2b94ae3ac6
96 Risk Score

Malware Insights

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

The sample is a PDF file flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, contains keywords related to the embedded URI, suggesting a social engineering lure.

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://xezojetit.ru/award?keyword=the+little+house+in+the+big+woods+pdf PDF link annotation
    • https://cdn.sqhk.co/rojarimeg/cghvN8f/king_oddball_xbox_series_x.pdfIn PDF document text
    • https://cdn.sqhk.co/bigulikexupa/Hiiihjg/80878764485.pdfIn PDF document text
    • https://cdn.sqhk.co/gunumiku/ihjdgg9/13695079141.pdfIn PDF document text
    • http://show-visitor.xyz/magic_treehouse_book_series_list_in_ordery5sdk.pdfIn PDF document text
    • http://samyog.ru/photomath_plus_free_trialwzgcu.pdfIn PDF document text
    • https://cdn.sqhk.co/bifugudawesu/Y8gieih/exogenous_infection_bacteria.pdfIn PDF document text
    • https://cdn.sqhk.co/savageven/gDMKjf8/con_edison_meter_reading_card.pdfIn PDF document text
    • https://cdn.sqhk.co/buwaxaxodi/Daeigij/cute_snapchat_icon_pink.pdfIn PDF document text
    • https://cdn.sqhk.co/jaxogubajo/41hhwhf/set_format_date_input_html.pdfIn PDF document text
    • http://mignonette.space/manomoqgrn.pdfIn PDF document text
    • http://wiinorama.website/friday_mp4_movie_downloadqupnc.pdfIn PDF document text
    • https://cdn.sqhk.co/denalivek/iejhjtF/mobile_gamepad_controller_for_smartphone.pdfIn PDF document text
    • https://cdn.sqhk.co/lutotilivik/xigijij/heart_rhythm_app_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/dixufeja/icv0zii/autometer_gps_speedometer_sending_unit.pdfIn PDF document text
    • https://cdn.sqhk.co/lojibuwe/cijhagN/7429695366.pdfIn PDF document text
    • https://cdn.sqhk.co/jenetuwuda/ih9kN5A/98273887593.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vebisop/98971084651.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47e9ed0f-3fc7-4480-9fcd-d83e246326ce/36452676056.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ffa52ab9-aa8e-4de9-b3d1-f7be66afcd82/xfinity_remote_codes_for_onn_tv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19759c0c-ea67-4421-bb44-a923f81596d7/fobuxutebetipiveligu.pdfIn PDF document text
    • https://s3.amazonaws.com/kelageketisefuv/vupoxobosasogimutemomo.pdfIn PDF document text
    • https://s3.amazonaws.com/xuvamuba/rulesipikikerotafizar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48c16749-d61b-45c6-b5e3-c24c6fc20691/79797960648.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eaf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF4 5176 bytes
SHA-256: 2540ee181d32dd2f91b8f3263bb77313af1ef96634f005db8a4bc6e2d4d2f3d2
font_01_sfnt_off0000fca2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCA2 11424 bytes
SHA-256: 5161f1b929713ed699644e571e2a440002b7e8e2fcef2e14919005eb2fcd1ef9

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