Malicious PDF — malware analysis report

Static analysis result for SHA-256 230816ca7f42288c…

MALICIOUS

PDF

89.3 KB Created: 2021-02-24 03:39:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: c41cb2a0b5f6646bbdbecc915d4bf03b SHA-1: 93cb32d308a83d8da5341a0e3ebab6b770abc131 SHA-256: 230816ca7f42288ccbe1147d374c0810c5e4519d28a70e8f5e1c0d80287a7c58
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 0.9996

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://jottigo.ru/123?utm_term=matar+a+un+ruise%25C3%25B1or+personajes+principales PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4488103/normal_5fd910f57f48f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390660/normal_5feb4a011c728.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455642/normal_5fee379fa280b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474734/normal_600ce523b4c1e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367302/normal_5ffccfc6b47b6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469103/normal_60115258dfbb0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445337/normal_5ffd3ae2d1dd3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367667/normal_5fd2eeebb3801.pdfIn PDF document text
    • http://jiludedo.iblogger.org/cocoon_by_migos.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366949/normal_5ff4333d5846a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416939/normal_602c2dd98908e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://lasuwutiganije.rf.gd/what_is_the_learn_button_on_chamberlain_garage_door_opener.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/mergers_and_acquisitions_2018.pdfIn PDF document text
    • http://benugafudom.epizy.com/crystal_report_designer_11.pdfIn PDF document text
    • https://s3.amazonaws.com/tosevud/34056709567.pdfIn PDF document text
    • https://s3.amazonaws.com/baritexovopa/avast_free_antivirus_for_pc_offline.pdfIn PDF document text
    • https://s3.amazonaws.com/feborobegibew/sanyo_tv_power_light_flashing.pdfIn PDF document text
    • http://kufuravolej.rf.gd/razaratamadukobejewese.pdfIn PDF document text
    • https://s3.amazonaws.com/lerezazo/68857157319.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA1E 5100 bytes
SHA-256: c71779f043fe856d8a5d6bb5870f176b842009a9981a75450ef1c64ef497f26a
font_01_sfnt_off00010b3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B3E 11564 bytes
SHA-256: 742fb03802298b75cf6c8305c66b83f314eddec7d1db84d9e691bb2ce49c762d
font_02_sfnt_off0001311e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1311E 16376 bytes
SHA-256: 4954ddec54c61b6acc7eddbac306bc890d05f3afdfcf3ae890c7612da0a7d668
font_03_sfnt_off000146c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x146C5 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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