Malicious PDF — malware analysis report

Static analysis result for SHA-256 f07f25992ceb8b59…

MALICIOUS

PDF

77.3 KB Created: 2021-04-02 22:33:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 385171b13bc1605ebf17b111a830cff1 SHA-1: c27db4f5031eed1db35448ff0a9b4d0c2d7be9d6 SHA-256: f07f25992ceb8b594b04c244b7e8d7d19b6fb758c7ff39258fac0f4fadfecb4e
96 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 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 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
  • 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://maypoin.ru/wix?keyword=bose+wave+system+iii+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4407810/normal_6035848113453.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467287/normal_6016cbf76450e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451230/normal_5fca0839efc98.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415768/normal_600691607570d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448556/normal_601a9aabc2f38.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427077/normal_5fcf687d4d8d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366033/normal_603c6307dadbc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458161/normal_6005e579e0edc.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/lazolu/telugu_movies_2018_tamilrockers_kgf.pdfIn PDF document text
    • https://s3.amazonaws.com/vunizi/56381071727.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/37505358271.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/2906199967.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/acknowledgment_of_debt_format.pdfIn PDF document text
    • https://s3.amazonaws.com/gezetega/gilakoji.pdfIn PDF document text
    • https://s3.amazonaws.com/gatazeromij/mejojububunobex.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/45907533429.pdfIn PDF document text
    • https://s3.amazonaws.com/kimone/othello_act_1_quotes_and_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/63976215824.pdfIn PDF document text
    • https://s3.amazonaws.com/fizup/lovely_accident_full_movie.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_off0000f274.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF274 5036 bytes
SHA-256: 16fab785d4f2917be28d5334fa742f02fcb526d6eaa5a8395371e2fe3a79f4c7
font_01_sfnt_off000103a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103A6 10800 bytes
SHA-256: e7e7563d7d9dbd06743f7645588a3063aafe2feaf33cae01ae99236105bf39f7

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