Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff29a8d01a75c827…

MALICIOUS

PDF

89.1 KB Created: 2021-03-04 12:43:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d547fdaf8e3d945c4ff4638fd8efbc97 SHA-1: dc1cf5a72d96cb44233676ebc4e220dea1baf6d2 SHA-256: ff29a8d01a75c8271abe0c9a142488b6f466dba3f9ecc1b3693464fbfc908839
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/123?utm_term=what+does+a+digital+transformation+manager+do PDF link annotation
    • https://cdn.sqhk.co/natokaze/gfhjhcX/buxunewezepedosetek.pdfIn PDF document text
    • https://cdn.sqhk.co/wepurodapike/QigUaPE/xifobugidoridimewebapax.pdfIn PDF document text
    • https://cdn.sqhk.co/dekavaka/jinjayD/darenaxozi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469370/normal_603320398893f.pdfIn PDF document text
    • https://cdn.sqhk.co/nejajevafode/yI3rhiS/60407128290.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404313/normal_5fc6f6b18c7cc.pdfIn PDF document text
    • https://cdn.sqhk.co/kinibemazoz/jeWYhaa/dimobitufemixudilumowug.pdfIn PDF document text
    • http://romomikas.22web.org/jugakeperexe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383322/normal_600180108e2bb.pdfIn PDF document text
    • https://cdn.sqhk.co/savunowudob/w9iahcQ/60896883379.pdfIn PDF document text
    • https://cdn.sqhk.co/kumotuxijufu/i6ic0rO/hong_kong_protest_scmp_blog.pdfIn PDF document text
    • https://cdn.sqhk.co/tesinogopano/MieiEij/63496011567.pdfIn PDF document text
    • https://cdn.sqhk.co/xakurusuk/cjjDjiJ/bogovuxujelapetelizeni.pdfIn PDF document text
    • https://cdn.sqhk.co/koxuzofu/itiiAhj/wekadumekufi.pdfIn PDF document text
    • https://cdn.sqhk.co/novupezezis/ejbNgen/notomudojanaxud.pdfIn PDF document text
    • http://wigoduxaru.22web.org/gidivafiruzozixub.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/puretulenuza/careless_whisper_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/79894555240.pdfIn PDF document text
    • https://s3.amazonaws.com/davawina/zopokuxutoxididapavuneneg.pdfIn PDF document text
    • https://s3.amazonaws.com/zufaxepixiguxax/92073194024.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_off00011ec5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EC5 5332 bytes
SHA-256: dcbc14924b89ba989dc2f3c1d26999e1283f8344d8daad0a66447fe30ae9d816
font_01_sfnt_off000130c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130C8 11212 bytes
SHA-256: 3182692944e68aa5ce606067fc2b8103fa7ee7acac88300eaacda6e7313d602e

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