Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0701275545003d2…

MALICIOUS

PDF

74.6 KB Created: 2020-11-19 07:57:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 25cd530d5bb06f7f5c2e0d110591212a SHA-1: ef751f2f2d361e66b4d4f54fb55eedc9a014d691 SHA-256: e0701275545003d2a39d2e8764c91ff765b5d742464a67fbd142a7d542a245ce
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 0.9998

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://traffmen.ru/123?utm_term=air+standard+cycle+for+gas+turbine In PDF document text
    • https://cdn-cms.f-static.net/uploads/4411250/normal_5f968dce46b95.pdfIn PDF document text
    • https://wajajudamivigo.weebly.com/uploads/1/3/4/3/134359543/65f436.pdfIn PDF document text
    • https://joweralifaj.weebly.com/uploads/1/3/4/3/134350132/xujuvizamot.pdfIn PDF document text
    • https://bafixexewav.weebly.com/uploads/1/3/4/3/134352321/rezilapev.pdfIn PDF document text
    • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/fegetururiz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369146/normal_5fb2a06285417.pdfIn PDF document text
    • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/4503832.pdfIn PDF document text
    • https://velebipuzufal.weebly.com/uploads/1/3/4/4/134434208/sovekida-rosimezabe-sufuguku-mefujabogezo.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/latufenaw/cancel_all_friend_requests_on_facebook.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/78633274677.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/pascals_triangle_java_code.pdfIn PDF document text
    • https://s3.amazonaws.com/feborobegibew/93077336959.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/fishing_lure_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zuguvoxoki/white_pages_sc.pdfIn PDF document text
    • https://s3.amazonaws.com/sinamozagemoger/21282489382.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_off0000d8db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8DB 5300 bytes
SHA-256: 08990eba7138cf0bd3412811355bdc82dba3af9b3d365bfdc567683b606cf741
font_01_sfnt_off0000eaea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAEA 10596 bytes
SHA-256: 0f29eed9678e45d0397ce0e601b404a8c6baca4d52ad87e3358ac68453afe0b1
font_02_sfnt_off00010efc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EFC 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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