Malicious PDF — malware analysis report

Static analysis result for SHA-256 c664829d02076b22…

MALICIOUS

PDF

70.9 KB Created: 2021-03-20 05:17:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 387d863ea10fc4b985909f4300404525 SHA-1: 991b116e21d0253354ae6304c1c3747596367d9c SHA-256: c664829d02076b22a8e4f097e2232632189806be2b11499d11b2546322e48e86
96 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 embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://dugedepap.ru/123?utm_term=aadhaar++via+face+authentication PDF link annotation
    • http://cleaner360.shop/ginger_farming_guidexylp2.pdfIn PDF document text
    • http://gapojigewe.22web.org/ashton_manual_conversion.pdfIn PDF document text
    • http://pihodze.com/conjunction_worksheets_high_schooltzuza.pdfIn PDF document text
    • http://zesijesagevonot.22web.org/whirlpool_side_by_side_refrigerator_parts_manual.pdfIn PDF document text
    • http://xtina.online/78224143001y2g4r.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/bd542f86-a93d-4e52-bf04-440ec7e1f79f/w_on_transcript_pa_school.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/badlapur_movie_hdmoviespoint.pdfIn PDF document text
    • https://s3.amazonaws.com/zafibimutadoti/4729638005.pdfIn PDF document text
    • http://fafebexa.epizy.com/anti_inflammatory_diet_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fa91fd4-c389-4837-bc67-76a099088bd2/speed_queen_washing_machine_repairs_cape_town.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/62986575207.pdfIn PDF document text
    • http://tisoparumunezud.epizy.com/bluetooth_microphone_for_iphone.pdfIn PDF document text
    • https://s3.amazonaws.com/badodemebo/5171987852.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66e71919-9bd4-43cc-84d4-29c5bbb1dbd9/15820496625.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/google_chrome_for_android_play_store.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b80cbbc-8874-43fe-a545-8d4abf33db9a/notusufuxip.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/10602537670.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2e5ad9c-74b7-4696-9c0e-22177d36bb44/logitech_x_540_specs.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/tutapinulo.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_off0000da69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA69 4948 bytes
SHA-256: 1b1e27a45ce5bcf448cc6373c14b33d03ea077fe54b53e28247f93cf8d74b9d8
font_01_sfnt_off0000eb45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB45 10428 bytes
SHA-256: cc92fdebc7e98a444da5c374c8e9eb0a21fdba9bebc23e2663f3391ced22b645

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