Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fa33d0fcb3790a8…

MALICIOUS

PDF

77.0 KB Created: 2021-05-18 02:51:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b5f556265f5f11811ff73859a0855b93 SHA-1: 10e0ce7cfb8e2d69f0d591546d8c311088851018 SHA-256: 7fa33d0fcb3790a8717ebb01740678d1235e5cd242cef6de0395141a87b483ee
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that redirects to a suspicious domain, likely serving as a phishing lure or a download site for further payloads. The document body, though heavily obfuscated, appears to be a garbled attempt to mimic search result content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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://lozipotod.ru/strik?utm_term=how+often+to+clean+tommee+tippee+perfect+prep PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4421768/normal_5ff6555acbf9e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380536/normal_6033682a1e027.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447108/normal_605139d225874.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494673/normal_6014607d98c3c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444110/normal_6037bd7197a6c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454184/normal_6006f4af43cc3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475380/normal_604cc54f33d2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454677/normal_6022e62f4a42a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423148/normal_5ffb80f3415f1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445890/normal_5ff427d48208b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485927/normal_60203565d71d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417830/normal_601e334ecb3e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478685/normal_603ccc4b6643f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384304/normal_6005ad442e363.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373987/normal_6059d7de93fa4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rodigapigeta/greek_mythology_family_tree_titans.pdfIn PDF document text
    • https://s3.amazonaws.com/jikopot/40233689617.pdfIn PDF document text
    • https://s3.amazonaws.com/forupokisip/best_flying_paper_airplane_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/febopa/the_eolian_harp_ap_multiple_choice_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/taguxif/jefugizubitibawaxevuna.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/39214014357.pdfIn PDF document text
    • https://s3.amazonaws.com/tapelu/biochip_seminar_ppt_free.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

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f0df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0DF 5036 bytes
SHA-256: 894b0b22c485020a4ad6464641ae15bf6bf69ded5614491c1fc4751636dfbcf7
font_01_sfnt_off00010201.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10201 10700 bytes
SHA-256: 82a05461b929c1cd42fb43a0d300d498f5a871e9f66c7a1775804c0d6ffc3d94

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