Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a32a90ab13718ae…

MALICIOUS

PDF

65.9 KB Created: 2021-03-02 18:39:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 8f6ad66af2d91f6af63f8a5bb66c474b SHA-1: bc367a11b87df1fa3da112d9b808d504b7933110 SHA-256: 6a32a90ab13718aee53be39963ed4b17d765fcd2916f3680dcd5d3b7b6423984
96 Risk Score

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 0.9997

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://fokemale.ru/wix?keyword=chapters+mod+apk+reddit PDF link annotation
    • https://cdn.sqhk.co/wujugojuse/icgchc4/lowezaxufefafani.pdfIn PDF document text
    • https://cdn.sqhk.co/tuzevawu/rij0jfZ/61089986955.pdfIn PDF document text
    • https://cdn.sqhk.co/towinomer/jhgjric/romupotexuxo.pdfIn PDF document text
    • https://cdn.sqhk.co/letareximo/u5qghpB/57594461341.pdfIn PDF document text
    • http://llloooodddd.space/zuxulemusawidevoixjfx.pdfIn PDF document text
    • http://faxusupovetek.sportsontheweb.net/tufunetudanegagasu.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/jolozidabi/kofap.pdfIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/what_the_bible_says_about_false_idols.pdfIn PDF document text
    • https://s3.amazonaws.com/nufidibodudulad/fipivugaritobalefe.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/kelika.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzotisenixava/offer_letter_for_job_template.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_off0000c631.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC631 5136 bytes
SHA-256: 5bddcccdde69866124059a74a636d7c3ccdab0d39c71410a003604647a25a1f3
font_01_sfnt_off0000d76f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD76F 10504 bytes
SHA-256: c61a93b21fcc6e17af4390cb74ef5aff4c0993747ed63dabfb3c52e529a11ca2

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