Malicious PDF — malware analysis report

Static analysis result for SHA-256 6986fdd4aea4485c…

MALICIOUS

PDF

100.6 KB Created: 2020-12-20 23:50:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 064ee8d69a5f54c23627026088febb16 SHA-1: 907cbfcbe590b07324e11182e16bb3a9aba718d4 SHA-256: 6986fdd4aea4485c51e5cba5a917a1b30ddf8ca714f86693cf8087b886354940
154 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 routes users through malicious redirector infrastructure. 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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gettraff.ru/strik?utm_term=incredible+water+surfing+car+stunt-+car+racing+game In PDF document text
    • https://cdn-cms.f-static.net/uploads/4382631/normal_5f9b6a85133a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450889/normal_5fd1248cb71a5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487662/normal_5fd83d6bb2440.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486566/normal_5fdc0bf7a3d4b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390055/normal_5f8ebea19c00a.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://s3.amazonaws.com/tarizirefevifab/free_product_catalogue_template.pdfIn PDF document text
    • https://s3.amazonaws.com/tudawufed/d_d_5e_tomb_of_annihilation_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66473752-43d7-4bc3-85d4-9b3c9247f58a/kimiralitasigag.pdfIn PDF document text
    • https://s3.amazonaws.com/wivunonovef/95963793171.pdfIn PDF document text
    • https://s3.amazonaws.com/vonusirukete/zifanezuwoliwuse.pdfIn PDF document text
    • https://s3.amazonaws.com/zewimu/3d_wallpapers_for_pc_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/virgil_aeneid.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013f58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F58 5316 bytes
SHA-256: 1e4ad02f3609f06d364be5101afd766bdc29c9a87f6fcffd6f8989dbfd234296
font_01_sfnt_off0001515b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1515B 10920 bytes
SHA-256: 95294c89fd7fda0683721825a55764ae0d7bcd35afa54385af4400bdab366fbc
font_02_sfnt_off00017685.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17685 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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