Malicious PDF — malware analysis report

Static analysis result for SHA-256 aebb860a562b3646…

MALICIOUS

PDF

40.6 KB Created: 2020-11-01 05:30:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 1a797c0605e7b021c98e390570b68b4c SHA-1: e7a12fb8676e74fce41c6c79abfc7a874b13e12c SHA-256: aebb860a562b36463baf1ab26b6ed975eebc943c424ffb0f28eb8c9190edd948
94 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by an ML classifier and contains a critical heuristic indicating a redirector link to known malicious infrastructure. The embedded URL, 'https://gettraff.ru/strik?keyword=bang+star+blast+drink', is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware download page. No scripts were extracted, but the presence of a malicious link strongly suggests a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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?keyword=bang+star+blast+drink In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368218/normal_5f8f8a277513e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369648/normal_5f87f48b07446.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387430/normal_5f90ace47c9de.pdfIn PDF document text
    • https://vavuxajibibugu.weebly.com/uploads/1/3/4/4/134472661/2391767.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368954/normal_5f89abdc43785.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389792/normal_5f90c70fb293c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381973/normal_5f90d952e9f0c.pdfIn 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/51a1e944-d30e-4086-9268-bc10ad02d770/50058603383.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/nevada_mo_high_school_football_schedule.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/95957544531.pdfIn PDF document text
    • https://s3.amazonaws.com/varoximu/destiny_2_gear_up_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d91e3a42-78dd-43d1-9884-41fe706a1917/17703793050.pdfIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/alkyd_resin.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/14165390925.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/mafivir.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/ayat_ruqyah_pengusir_jin.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_off00005fcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCB 5248 bytes
SHA-256: 7d1279d1153e10b9c074e79fbe0d9891f9b68292ac91940ecc139a9bf725932a
font_01_sfnt_off000071ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71AC 10568 bytes
SHA-256: d8f49a47f7e80a71da0a3162212b58d52aaeef56f6bebedf0db75b4c11c64836

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