Malicious PDF — malware analysis report

Static analysis result for SHA-256 323e7d0457c6d2ad…

MALICIOUS

PDF

87.1 KB Created: 2020-11-17 22:55:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: ffec881d7e7d6a574232df0399860e60 SHA-1: dcc1b6c0402be7d17e2755a7331dab148e411169 SHA-256: 323e7d0457c6d2ad10cc76c2c841d686d1af8db8fd8f03bbca375cbb0c5ab065
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. It uses an urgency-based lure. 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 0.9997

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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://traffnew.ru/123?utm_term=magic+the+gathering+rulebook+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4389801/normal_5f901056b0c55.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500001/normal_5faf82e319d17.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/a7d1643a-220e-40c1-a531-bb514cad4bdd/39428935007.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6e38e9a-becc-4ad3-a950-5b838850f3a2/kalifetafejededik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a7177f7-573a-49e9-a870-168e6d247a36/pokemon_black_cheat_codes_master_ball.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ad414db-ca5a-49d6-9566-721f682bc01e/cdm_study_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f678739a-283e-4d0f-8cd9-a8115ff3b65b/mixcraft_8_registration_code_free.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/cricket_doll_80s.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b64aa3a1-affe-48ce-8117-6dd734682e5c/rejuberam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf1eb84f-fdde-4d4c-a6c5-5ef8557b17db/easy_memorial_day_coloring_pages.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd27f012-b6b1-4f56-b752-2f77e78ae80e/tologutubum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00f58a67-88c1-4bc4-9b4b-e31f7c0f7308/58982919064.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5bf3787b-7188-448f-bd0f-b0a2e1d84d0b/rotmg_fame_train_server.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1492755-3e2b-47dc-81cd-4c756840197c/lee_soo-man_son.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8576ba1-3564-463f-ac5f-780e042f1dc5/blood_bowl_injury_table.pdfIn PDF document text
    • https://s3.amazonaws.com/sodoxi/inuyasha_a_feudal_fairy_tale_manga.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010ada.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ADA 5332 bytes
SHA-256: 0348e0e569b759d94d83a92229504697620c4614624903de33c108292e254e15
font_01_sfnt_off00011ce6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CE6 10572 bytes
SHA-256: 86a994e33dc877971bba1c7dda15c4af10233658d333205b290a858045b1888d
font_02_sfnt_off000140c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x140C9 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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