Malicious PDF — malware analysis report

Static analysis result for SHA-256 d072843026934f25…

MALICIOUS

PDF

107.0 KB Created: 2021-03-29 17:23:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 0f7a45d6eb3281bfd58da0db5d3faa53 SHA-1: 522976089d43b59f7c256c726f4bb7f456e4bd78 SHA-256: d072843026934f2507a6376edcc8d5b90fcb5821849a10c8ffb47b5ad436026f
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-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://gimoguvi.ru/award?keyword=caperucita+roja+libro+original+pdf PDF link annotation
    • https://cdn.sqhk.co/febowozefu/3QggihK/forward_assault_mod_apk_happymod.pdfIn PDF document text
    • https://cdn.sqhk.co/zonakagud/kifR8EW/bufozawafapegefosazowuso.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403271/normal_5fe4360646cef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403820/normal_6040101668711.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495058/normal_6022ae544a78a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480187/normal_5fd058393308d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486359/normal_5ff96ee71406e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404987/normal_5ff933c4f1f74.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393762/normal_5fee088974393.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414357/normal_5fdd317c4115d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489733/normal_60388d4605d4f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369908/normal_5fdcc9588aa75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447464/normal_603d1fbd5f8a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411717/normal_5fd26fa394042.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486743/normal_6019d07899207.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389355/normal_5fc6cae6975ef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/6eff17c4-fd8f-4a6f-9fb2-d50e9b18af28/bigudakaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d176270-8055-4828-8d7f-c272793a8efa/youtube_lord_i_need_you_now_plumb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d59f6084-67cf-4de6-b72f-ea8942cf51f4/multivariate_time_series_forecasting_excel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9bbc251e-7c8a-4cf4-b29e-a1ef00e4cb75/xilawedodixuxisisami.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 4

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_off00015f92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15F92 5264 bytes
SHA-256: 4ead2d790a947ad893f9ddcb5b8a73032013d990146b6b451033d09d5435d33f
font_01_sfnt_off00017185.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17185 14036 bytes
SHA-256: 065ed1c2d0f4efbdeb79b12d72fe626692c9d353391af70095e9c88b0654c468

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