Malicious PDF — malware analysis report

Static analysis result for SHA-256 06df1571ce539e89…

MALICIOUS

PDF

68.7 KB Created: 2020-11-14 18:08:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 237297d3ff63509e6177b7c651f7b02b SHA-1: 15f836aa40cf7ee57a17871a0a28768808da0ba2 SHA-256: 06df1571ce539e89f2dfdede74fbb0aa3f411d4568688e4aa17aa13c7505f9eb
116 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. It uses a callback-phone (TOAD) lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffking.ru/123?utm_term=fort+worth+police+department+warrants PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393790/normal_5f960d768a2e9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478685/normal_5fad2e334d411.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472773/normal_5fab4f0d2e739.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/06bc2019-a1d0-4d6e-a57b-66913f0cb28b/26928741391.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/ihya_ulumuddin_imam_ghazali.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d3421fd-f4d1-4d7e-90be-c43d9292f917/fastest_dog_in_the_world_breed.pdfIn PDF document text
    • https://s3.amazonaws.com/limewub/navy_female_cpo_summer_white_uniform.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64cb80cb-cda0-4454-b757-09b1799919d9/99610250273.pdfIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/chapter_13_key_issue_3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6ca37e7-6f96-4e78-aac9-71a2b62c4cb3/54190753322.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5086b509-b795-46ba-9513-6fc6a087e366/63533713564.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/zigovuzizozuxomosix.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_off0000cda9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDA9 5360 bytes
SHA-256: 0766f9b5c622765cdac4244073b3340df397cdcea71ff6eb9d1764b63de4bc1f
font_01_sfnt_off0000dfca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFCA 11096 bytes
SHA-256: 2499b91cf6d28a233ad889b58a94c798f01f6ab8756886b110106d9956550660

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