Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a69232e75e1618d…

MALICIOUS

PDF

69.0 KB Created: 2020-12-24 03:57:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: e54bf4c8f53948908f17b9c13e7a7845 SHA-1: 96bcc94ff9cf1c70792780c80728d364d733c707 SHA-256: 1a69232e75e1618d0a3bcec7779ac04e0aeb30738c40dca5ed6c197c29393db5
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic and ClamAV detection. The embedded URL is designed to trick users into believing they are purchasing an eBay gift card, but it leads to a known malicious site. The ML classifier also strongly flagged this PDF as malicious.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://cctraff.ru/strik?utm_term=buy+ebay+gift+card+uk In PDF document text
    • https://cdn.sqhk.co/jozojijejip/RP3gggf/kajojuve.pdfIn PDF document text
    • https://kaxemesotom.weebly.com/uploads/1/3/4/7/134732336/kirimotofijubut-neladijonebapow.pdfIn PDF document text
    • https://cdn.sqhk.co/xezojutatow/jerCojg/katexafurajibufa.pdfIn PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/tefinopixiw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491669/normal_5fd0da88c6f7f.pdfIn PDF document text
    • https://cdn.sqhk.co/lodoseduler/YtjYjhX/modogiwenarujutisijax.pdfIn PDF document text
    • https://cdn.sqhk.co/tuponapalab/gjghicR/chocolate_protein_shake_recipes_healthy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384304/normal_5f90764679dac.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/suzitivasekoga/95905171309.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f4e4cf0-5e63-48ae-b04a-1ba74cb7d8b6/rivusibetipowakisiwofarer.pdfIn PDF document text
    • https://s3.amazonaws.com/lososimap/cloud_architecture_patterns_o_reilly.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/wemafevopilifuzewujodi.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/achievement_unlocked_3_guide_unblocked.pdfIn PDF document text
    • https://s3.amazonaws.com/sojaxub/chhello_divas_gujarati_full_movie_mp4.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_off0000d15f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD15F 5332 bytes
SHA-256: 7027d9b3446637307a807c502def141d8621a617f08f3cb555bc73d7df7b64e0
font_01_sfnt_off0000e3a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3A7 10516 bytes
SHA-256: c7b0f2659735554dc76c3e3420016365370cbd5a20f01c6f5dd04b7825b1ffc8

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