Malicious PDF — malware analysis report

Static analysis result for SHA-256 408a990d643a4a95…

MALICIOUS

PDF

77.6 KB Created: 2020-12-22 10:40:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: cf29f7a6ab5209908f7a99fc0f15fbb0 SHA-1: 7109f460ec23d2084e8ddf10d653b92b007d85f1 SHA-256: 408a990d643a4a959bbe0717067eb800cdafd285981306d843ed848f8335856a
162 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://gettraff.ru/strik?utm_term=disneyland+paris+holidays+2022'. Additionally, a machine learning classifier flagged the PDF with high confidence, and ClamAV detected it as a phishing trojan. The document body, though heavily obfuscated, contains text related to 'Disneyland paris holidays 2022' and urgency lures, suggesting a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=disneyland+paris+holidays+2022 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4379984/normal_5f9372ffd381c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365624/normal_5f9d6f76ed729.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415748/normal_5fa04d2af32b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388280/normal_5f92aaa4513da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480149/normal_5fc3655018659.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/4dd5bac3-178b-4329-99b0-b3e7cff63063/the_cat_in_the_hat_poem.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe1f8fbc819f1cf4a16900/1606295439947/faniwokakinax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bade140e-d56e-4295-93e4-b56e8e410e9e/42748092891.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1cc0e34-0d64-49ca-8cc4-a891e0e5d101/vujofawikezam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c284013-5f9e-446e-84e6-4f594bdd8b2f/cookie_dozer_cookie_clicker_2.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc39171c6229360ecbdae8e/t/5fc66d699b1ed03538bac334/1606839658037/34915672328.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38d27678-7b3b-44c1-93aa-bfa14c5892b0/tank_hero_laser_wars_pro_apk.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc34462ab79f442f238dc9b/t/5fd61e75b1c3f31c7a792376/1607868023483/apologize_piano_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad896895-e807-418b-bc54-f42912c60298/krylon_crystal_clear_glaze.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc374892bbd74065816c63e/t/5fc590533c02f22b9dcb0cbc/1606783059945/15952944417.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe03e1e18c5c478ec26d37/1606288360182/lee_county_schools_vaping.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_off0000e157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE157 5128 bytes
SHA-256: 7786faf3c5d7dd9091599c7574089ce2ef1401425f8a3007f407f30bfe3b9710
font_01_sfnt_off0000f2b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2B4 11740 bytes
SHA-256: a407375c43e750e7d9bfd1b5afca77fe9f0438d022963576a50bdb9d99705218
font_02_sfnt_off000119b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119B7 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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