Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7e5ae78fab04682…

MALICIOUS

PDF

67.7 KB Created: 2020-12-01 17:11:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 38606c366a56eaae1c97b108e0551791 SHA-1: 983d4df08952ed49dae836b5d911d9ee93f90283 SHA-256: b7e5ae78fab046822e58bef527c291ac8b123d6bfc72a89f99259047065562d4
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 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://trafffe.ru/strik?utm_term=alma+redemptoris+mater+palestrina+youtube PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4378379/normal_5f8d9f4e46c31.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454172/normal_5fb870ee0ea6e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411252/normal_5fbeee9e654aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408595/normal_5fa4540993505.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394082/normal_5f94be825b1f7.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/439fa9f1-e1a6-4ff6-86b2-45b2821faf42/18232179694.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a459ec8-83ce-42ec-a54c-89acdadcfaf9/password_generator_reviews.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d7f961f-8ec3-4964-90b2-4935dc77b9f7/44983679034.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a56e3ff-8109-4b6a-9d57-ab96749d6821/tujogozibenifukunapupil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13ef589d-af1a-4445-8dcf-4d12211f72c0/how_to_get_free_musically_likes_on_tik_tok_app.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3330a676-53b0-49f7-9347-1a77812e3e91/dimozaxakujonisikega.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfcd0fb8-c1d0-4cb2-9584-3b7209ca98ff/70156578271.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86c5eff6-1fcf-480e-ba60-6f6553db3f8d/academia_de_fisica_prepa_2.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000be29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE29 5220 bytes
SHA-256: 26b6cfb69e38007f18459f4be9c23b9a24367a0633da5bab9990a78375ed2656
font_01_sfnt_off0000cfc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFC2 10932 bytes
SHA-256: caf05dd07d4d58a661e30184363690c61bb81bd93bc6e30b37411031c77c585e
font_02_sfnt_off0000f353.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF353 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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