Malicious PDF — malware analysis report

Static analysis result for SHA-256 094c5129341404be…

MALICIOUS

PDF

84.0 KB Created: 2021-03-27 10:51:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 80cac5e585798316de4d59716a6afbc5 SHA-1: 9e12d1698afe56e1fa074a820880ffd8fa611a4d SHA-256: 094c5129341404befc8917df80f85df9fcc362bab738654a041a3c0fbd9c0d33
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 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://mezovuduw.ru/award?keyword=across+the+bridge+mwangi+gicheru+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387420/normal_5fea0375be0ff.pdfIn PDF document text
    • https://cdn.sqhk.co/nazopekujavi/WngcHhb/compass_point_west_diamond_hack.pdfIn PDF document text
    • https://cdn.sqhk.co/gesuxafom/hZjekOr/89227424431.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476930/normal_5fcea99183137.pdfIn PDF document text
    • https://cdn.sqhk.co/juvebuzizej/ohNijof/street_chaser_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390385/normal_5fdc47de0da2c.pdfIn PDF document text
    • http://serovakarara.mygamesonline.org/caste_list_in_karnataka.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368763/normal_605eedff5db04.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dezobod.onlinewebshop.net/46416110342.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0666efee-1701-4595-9137-d59c6064e723/tuxax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7de48960-efe8-45a9-83fa-56cf666c2fb9/nuduwilomimojat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f27e0d51-2e7c-4949-b801-857d3c53e15b/senaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60b16f25-af58-4a07-9fce-b10c76a810a4/kikatu.pdfIn PDF document text
    • http://dexadusoxeb.atwebpages.com/83451408312.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a3d6861-8929-4c09-9176-6203f6cfdb33/adventist_home_health_care_silver_spring_md.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf93a187-8075-44dd-9ad6-6b29e2767ce4/brown_bear_brown_bear_what_do_you_see_meme.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6791456f-e5ba-416e-b022-9d736f945448/sadlier_vocabulary_workshop_level_d_answers_unit_14.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee33165c-4207-4a67-bf70-4d8d75150ec7/26655837194.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6523a4d9-07b7-4c2e-8c32-4fdd188b9972/45767446616.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d5b3864-a2d4-43a0-82e4-ae263961da95/32198144030.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c772c010-bf60-4512-aea5-483aa056f698/how_much_do_detectives_get_paid_a_week.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f36a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF36A 5760 bytes
SHA-256: 7a4b87140be61d0748b31acfbf4cf1a6bcefa69306d2ccbe06e95fae87ca7315
font_01_sfnt_off000106ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106ED 11124 bytes
SHA-256: 279c98febcd480edc633f9d338d85cde085bd7270a1ddcff0a3258bc308032cb
font_02_sfnt_off00012d56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D56 16132 bytes
SHA-256: 60f53b17f7925ac1818ac9336ea58fd206fea48872b5377b70e6fb8114080afd

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