Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fbab430acaef55a…

MALICIOUS

PDF

67.5 KB Created: 2020-11-21 01:40:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: f85e893d06055ffceef4a67b503e3acc SHA-1: bd3f6e88ef4fd56bcfeac96dc33ed1274b3cb5a2 SHA-256: 1fbab430acaef55a67cc8006c51c0dae5f029a843a883b194571ad0b28f6ad4d
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-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://trafficel.ru/123?utm_term=magic+the+gathering+online+vs+arena PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365638/normal_5fa4f729d4c45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377377/normal_5fae557437c53.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473619/normal_5faf90b35177a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365619/normal_5f87585521cf0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390068/normal_5f931ff6e18e4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375080/normal_5f9b99df9ceb4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379369/normal_5fa17bc831632.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368265/normal_5f8bcbc43ee63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366045/normal_5f8768759b577.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/jiwisi/allerseelen_richard_strauss.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/48797237567.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08af336e-1784-4af1-983a-9736b4dd80cb/mizuxana.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db3300db-0e4a-4b88-b153-37c96d47cf76/82619705617.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de1d94c2-e73f-4de5-b669-3f8c3170666b/82846227053.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_off0000cae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAE3 5128 bytes
SHA-256: c7a97abe453279e9e53f2715a38f96a6d7f4b6e546f4cbf3732a55575c5750ab
font_01_sfnt_off0000dc62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC62 10872 bytes
SHA-256: 8f46e47091abe7acbd6e1f54392530ca8e35107a0cd5265d32877134ba17a06a

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