Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb786a9421a83dd1…

MALICIOUS

PDF

67.7 KB Created: 2020-12-23 04:08:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 2e52ab0d718f9a6e820cd429a61d28bc SHA-1: 95f7a0457016d3f4b32f870eaf01429eabc5f926 SHA-256: fb786a9421a83dd1fbf5b54e1921114f50ed19d09d28174fa371b2f307b6bb60
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 0.9981

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://traffine.ru/strik?utm_term=kitten+match+mod+apk+0.+12.+2 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4375708/normal_5f8c819053a71.pdfIn PDF document text
    • https://gewujezugiwo.weebly.com/uploads/1/3/4/7/134754524/sefis.pdfIn PDF document text
    • https://moguvikob.weebly.com/uploads/1/3/0/8/130874292/lomukigutaxojer_porigejalojupe.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/xalasawu/49835945134.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc64ee16b97992eb580530b/t/5fc902c99edd38600bb1c86d/1607008970310/stack_overflow_java_code.pdfIn PDF document text
    • https://s3.amazonaws.com/wozowuledij/rufogipunumajubaxilaful.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/kendall_atkinson_an_introduction_to_numerical_analysis.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc509f16b97992eb5765355/t/5fc5dbf3645712565406e611/1606802420474/61843510713.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5d25a7848ba205d3a8ee5/t/5fce64555d2e6f3bda7158c5/1607361623586/car_simulator_og_mod_apk_android.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_off0000ca92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA92 5396 bytes
SHA-256: 16baed559681df456e6b82a410e893718dfe6af777155c115422d29ed13b768b
font_01_sfnt_off0000dccf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCCF 10908 bytes
SHA-256: 47b822c1799a3269f38c0fefc5341fe869261c155776ac70e87afdabc16e2dac

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