Malicious PDF — malware analysis report

Static analysis result for SHA-256 599dd6fea85a2202…

MALICIOUS

PDF

63.7 KB Created: 2020-11-13 07:31:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: a716a85eb43b88d71d2c1aaf7ffb9c7a SHA-1: 64fce1c39ed3b36e5c82cb89876dcb4473160bb0 SHA-256: 599dd6fea85a2202ee4e2ea3728e435c8467cb60be15b53bb22f03849c408b9e
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 0.9992

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://traffine.ru/aws?utm_term=cappuccino+song++mr+jatt PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4451742/normal_5fa1309b87531.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369305/normal_5faaecd9b5ec9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419846/normal_5f98a94cda378.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388279/normal_5f916699a759b.pdfIn PDF document text
    • https:///\/a10.gaanacdn.com\/Images\/albums\/45\/2729845\/crop_175x175_2729845.jpgIn PDF document text
    • https:///\/a10.gaanaIn 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/0374ce68-c64d-4eca-83d1-e6e098cd15ad/todojume.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/24729954959.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/behaviorally_anchored_rating_scale_definition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/049a33c6-9a71-49e2-92d5-28307f92388b/gospel_hymns_chords_and_lyrics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/abf31e71-da57-4477-a22a-f451ec6b0b67/zogazifajojewevufiluv.pdfIn PDF document text
    • https://s3.amazonaws.com/godewumazek/all_minecraft_games_for_free_online_play.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14f3b36f-aa90-4f66-999b-83e32e75553a/wakisazavemutek.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_off0000bc29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC29 5200 bytes
SHA-256: dd6099154dd90f5e470038b54a29f46eb06e1efc2805a928ea8cc22270de9927
font_01_sfnt_off0000cdc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDC3 10996 bytes
SHA-256: 5041094b3c8ffb771ca89f09c73b374b6e954c4bdb6c158bb3a4fd145c71ac1c

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