Malicious PDF — malware analysis report

Static analysis result for SHA-256 0afc71a6ee5691cc…

MALICIOUS

PDF

65.7 KB Created: 2021-06-01 20:42:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: bcfbc12a9c8b1f5fee430ae36328d8e8 SHA-1: 508ce039017befab08fe4a147a3c12d03fa458b9 SHA-256: 0afc71a6ee5691cce0506c052f990d180e5920dc74c365144b56972a701e2446
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://midufefew.ru/123?utm_term=niv+bible+offline+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4373264/normal_6027bf35d3fb8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425726/normal_5fdd09301fd48.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422640/normal_601fac2048af8.pdfIn PDF document text
    • https://natutiwuv.weebly.com/uploads/1/3/6/0/136019317/jerewodagine.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381962/normal_602f0d748cb7c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416672/normal_60472e262db76.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367622/normal_5ff4e85246d85.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446170/normal_5fedbbd4c21af.pdfIn PDF document text
    • https://jasevumoxemu.weebly.com/uploads/1/3/4/7/134707335/9524381.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417418/normal_6030603911281.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486969/normal_605331d9a4418.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/8c3be8a1-192b-4b4f-b8a7-50445516bd88/50946585385.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58df3093-ed34-41dd-902c-5a0b3b863cc2/trkiye_diyanet_vakf_islam_ansiklopedisi_indir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0bf7a5b2-6681-4004-b286-33938f43948e/what_order_to_learn_physics.pdfIn PDF document text
    • http://zowonixepor.pbworks.com/w/file/fetch/144466620/miwudazanugixuvomerufibej.pdfIn PDF document text
    • http://nagomax.pbworks.com/w/file/fetch/144423423/dapinivobububovu.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 8

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_off0000c708.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC708 4852 bytes
SHA-256: c458295b07492a50aed8ee7169f54a5ae144114d4ffed0b06854649a0f98bf2e
font_01_sfnt_off0000d7b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7B3 10024 bytes
SHA-256: fe924045227fda53e6bc99973ef7dab3c976c1e696d5968d3a9a7cdccf09790b

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