Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6d2aa407221ef2a…

MALICIOUS

PDF

72.3 KB Created: 2020-11-11 20:56:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 0913096bf05df4335045f191ce15e5e6 SHA-1: 973b7ce89191a2e47037da4d85e4ff5b650fc568 SHA-256: e6d2aa407221ef2a1cd91625adb1e4a1249587f0bb39457fd42aafb978d42f7e
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains an embedded URL. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The embedded URL is the primary indicator of compromise, suggesting a lure to a malicious site.

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://trafffi.ru/aws?utm_term=howrah+bridge+audio+songs PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4426823/normal_5f9bcae81e445.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408703/normal_5fa73a0346256.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445882/normal_5fa1eea9a425e.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/duzexefemosaxe/raid_shadow_legends_mod_apk_latest_version.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ff57c53-4104-4540-a640-5ecb28c270d1/boricua_en_la_luna_poema_letra.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/motherlode_mine_guide_osrs.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/airline_ticket_sample.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a74dc70d-d882-4e16-a2ee-6b0f9e34bbc4/41056285340.pdfIn PDF document text
    • https://s3.amazonaws.com/gajejasa/vojeso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2121eb07-2d0f-4e88-b320-0d5539eec86d/24301447069.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5fc1b95-e9b1-46a3-a5fa-b5432098563f/7288549094.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd156836-a8c4-4e35-8ae2-5b8447cfabc6/junebetotunanedi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1029a8c-0db5-4f13-9368-44b3d660d883/7621946037.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb040a6b-3a21-40d2-929f-267bdfa0585f/xujebufupuba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4c3bc96-7ebc-4c25-8137-2b4ccdc3b5bf/wadonede.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfc3a45d-5ed9-4c2f-8347-2fd0d35fb4c4/24418117360.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_off0000ddf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDF1 5248 bytes
SHA-256: 1de14a652361875922015812c9684b7de8e7ee0e84510a83f297ee788e578e48
font_01_sfnt_off0000efce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFCE 11092 bytes
SHA-256: 43d195fdf359fd74d5f88329e52386a3ad02216538089bbcc64c2bc2a70cd445

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