Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ad0dc9f2137b8c2…

MALICIOUS

PDF

69.1 KB Created: 2021-04-02 05:28:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: ef2e68163f356c51659a3a51a39d2fa0 SHA-1: 557076c4349cb19e9785a7fe68000975d9e6db90 SHA-256: 2ad0dc9f2137b8c25a3023c9ed958e76f2ee6b4e434d11874e05af10172fbd13
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 0.9996

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://druttle.ru/aws?utm_term=yoga+international+anatomy+course PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369498/normal_60665cd55ae41.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489588/normal_6033ff1eb2b2f.pdfIn PDF document text
    • http://rejasikega.scienceontheweb.net/easy_cribbage_rules.pdfIn PDF document text
    • https://ditomivowulute.weebly.com/uploads/1/3/4/6/134679561/d21d13aca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376601/normal_60433c6e8e0b5.pdfIn PDF document text
    • http://xojitufos.66ghz.com/mupajovujonokuna.pdfIn PDF document text
    • http://jofipifemu.medianewsonline.com/why_is_my_xbox_controller_charger_flashing.pdfIn PDF document text
    • http://sewawena.scienceontheweb.net/argumentative_essay_topics_for_middle_school.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405652/normal_601eadd788a97.pdfIn PDF document text
    • http://joriwolujuf.sportsontheweb.net/77325335121.pdfIn PDF document text
    • https://zuvaxufar.weebly.com/uploads/1/3/5/9/135993026/budusabagadabik.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/fukepez/developmental_psychology_exam_1_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/android_studio_portable_mega.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d7be29d-fd61-4bcf-be48-512179dc59a3/95732755855.pdfIn PDF document text
    • https://s3.amazonaws.com/regufojalojaza/97244051884.pdfIn PDF document text
    • https://s3.amazonaws.com/venunamazozuzo/85891164993.pdfIn PDF document text
    • https://s3.amazonaws.com/toniseligiwuzux/42315730124.pdfIn PDF document text
    • http://penabak.epizy.com/tuvizazi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1aeae88f-f91f-4c1a-b2cc-ccfb7cf16703/bushnell_neo_xs_golf_watch_reviews.pdfIn PDF document text
    • http://medazupu.onlinewebshop.net/tutorial_activinspire.pdfIn PDF document text
    • http://kanisal.epizy.com/73673555687.pdfIn PDF document text
    • http://sebukojuteropib.rf.gd/what_is_science_book.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_off0000d3b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3B9 5184 bytes
SHA-256: bdcbf62dc2dee1574dd558cc4a4e7e75497fc25e4b3118c996e0e44b0777905d
font_01_sfnt_off0000e550.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE550 9792 bytes
SHA-256: b3ee387d713e8380f40fa088264ffcdfd9ebaad75ad155f47a9522529c1b9a99

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