Malicious PDF — malware analysis report

Static analysis result for SHA-256 60270765d9121a7c…

MALICIOUS

PDF

147.4 KB Created: 2021-01-04 00:36:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: a82c1e605e230bfce38b7b73f75843b6 SHA-1: 8092b501185885644b36456486fff9f85f94743b SHA-256: 60270765d9121a7c7a0a8f3a7aae21a91d6a67e8bef6a910ee40045df0a4866b
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://gettraff.ru/aws?utm_term=american+history+pdf+short+story'. This indicates the document's primary purpose is to lure the user to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious, supporting the assessment of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://gettraff.ru/aws?utm_term=american+history+pdf+short+story In PDF document text
    • https://static.s123-cdn-static.com/uploads/4458163/normal_5fcd25a81aa5d.pdfIn PDF document text
    • https://balolenitazir.weebly.com/uploads/1/3/1/0/131071159/pukikilarekivosevax.pdfIn PDF document text
    • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/b2cd854d790610c.pdfIn PDF document text
    • https://wawodupalise.weebly.com/uploads/1/3/4/6/134621762/70881dd4.pdfIn PDF document text
    • https://panesiwosejel.weebly.com/uploads/1/3/0/7/130739396/wivuripazigel.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://uploads.strikinglycdn.com/files/1e32dd98-8202-47d4-aa2c-b435904556b4/fafutusujalizad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e20c9ac7-9489-42b6-9e8d-b42887757a8b/george_washington_high_school_guam_bell_schedule.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76293fe1-5280-481d-984a-6b383df58c48/wufanipa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df70c3aa-bc8c-4185-9fab-724db568e2ca/nehemias_9_6.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68176b6c-4d3e-4e68-a6dc-988ea350601a/38958094806.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3ddb02f-9db4-4bd8-ba15-5baf9f74e839/el_conde_de_montecristo_resumen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d2fd2fa-d777-4dcf-8ae0-a615654d2c26/52711656493.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_off0001faec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FAEC 5244 bytes
SHA-256: e2375ffe7d5632732daa195561c9ce49d6c9fb23a977658887d34c8aaab5c59e
font_01_sfnt_off00020c86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20C86 11436 bytes
SHA-256: 1680eb9145664f090b05b3490528b49ac609fdddea7d8d6d0512b4e6ec6ac04c
font_02_sfnt_off0002326e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2326E 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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