Malicious PDF — malware analysis report

Static analysis result for SHA-256 fffa2794640f9a45…

MALICIOUS

PDF

85.2 KB Created: 2021-04-01 11:06:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 1fbe22692cb1acd29f1d712bbd07e3c5 SHA-1: 955d315b3ad7f5352a7d813439812e3225e3cb95 SHA-256: fffa2794640f9a457e460e09b00158c43d7b19cd07e90e67c8468f6b5dd7c2a5
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://soxebez.ru/123?utm_term=bullet+raja+full+movie++mkv PDF link annotation
    • http://biomanix.best/what_happens_at_the_end_of_doctor_sleep_bookmki0t.pdfIn PDF document text
    • http://sebevifa.getenjoyment.net/jusogimolatikodeja.pdfIn PDF document text
    • http://mebovaduzi.mywebcommunity.org/bezorimetujezupumaveni.pdfIn PDF document text
    • http://legendbilisim.com/where_can_i_get_my_cat_neutered_for_free6wpen.pdfIn PDF document text
    • http://presalle.xyz/teks_sholawat_burdahj2826.pdfIn PDF document text
    • http://expressvpn.store/barium_meal_procedurehuhcx.pdfIn PDF document text
    • http://eurofamily.pro/christopher_hitchens_falwell_youtubeihs96.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ff91d60-5a00-48be-8369-43e7b5c2b7e1/who_makes_amana_microwave_ovens.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdf0d285-8823-49bf-b1b5-e436a266f605/insinkerator_badger_5_leaking_water_from_bottom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15204a20-d33a-4f25-86a4-7a0a70088048/lowiriramonogow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/185d69b2-9feb-4e8d-84bf-0e9b04064c1a/94767279155.pdfIn PDF document text
    • https://s3.amazonaws.com/widofafane/25028744097.pdfIn PDF document text
    • https://s3.amazonaws.com/numunenoji/golovixilojidixa.pdfIn PDF document text
    • https://s3.amazonaws.com/jusagi/multiple_regression_analysis_in_research_methodology.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/91084747635.pdfIn PDF document text
    • http://bufijonewufo.onlinewebshop.net/how_to_recover_from_abandonment_trauma.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/zufekibafizop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32156d3f-1055-4712-beb0-222a51cc9ad9/94146702202.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/airhelp_assignment_form.pdfIn PDF document text
    • https://s3.amazonaws.com/pegozegi/rakusaburos.pdfIn PDF document text
    • http://bugenuvumap.atwebpages.com/srimad_bhagavatam_english.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/9048268542.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC6 2952 bytes
SHA-256: 6f6c5a8fb5e62cfd2b6ff76f758e0f05a98695d5bac735cd019a42cb5e5649ba
font_01_sfnt_off0000f853.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF853 4984 bytes
SHA-256: 7bb874657502e770416600241d5fe9b25aebed0dfd758a41c312e84faf49e141
font_02_sfnt_off0001093e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1093E 11400 bytes
SHA-256: f11c9f6d57a9cb89779e2347ab5f3fae9429cb1b863c80eeb5e34f1587824904
font_03_sfnt_off00013025.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13025 16164 bytes
SHA-256: 3f70697d8cfd0b9becff5adcad726f9ffedcc5d773cc6f7abbcc82b2f8034994

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