Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9ca01fb060c8e52…

MALICIOUS

PDF

80.6 KB Created: 2021-02-21 01:04:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0006722e147212d55b6cebd81b404b8d SHA-1: 986092f2b21e912714bec39e6d58766d41e81a51 SHA-256: d9ca01fb060c8e52289f30a6a69f26d8c0838bedf0207436279c90e9fbc95536
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'maypoin.ru' suggests a phishing or malware distribution attempt. The heuristic 'SE_URGENCY_LURE' further supports the phishing pretext by indicating the document contains urgency or deadline language.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=is+amtrak+still+running+in+california PDF link annotation
    • https://cdn.sqhk.co/jadepibake/6ZgghgZ/vosolumuve.pdfIn PDF document text
    • https://cdn.sqhk.co/nezusoxe/chjCGjd/hidden_object_games_for_mac_64_bit.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417141/normal_60141d4b72528.pdfIn PDF document text
    • https://cdn.sqhk.co/losokifape/hiRjcgh/parents_as_teachers_jobs_springfield_mo.pdfIn PDF document text
    • http://damodudajipofem.22web.org/pajegesukidesibeviwosupep.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459188/normal_601ed80c3674f.pdfIn PDF document text
    • https://cdn.sqhk.co/nazujovo/idhipgg/followers_chief_pro_apk_1._5._7_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373504/normal_600a9535c865f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460233/normal_5fed7458f22b3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474445/normal_5fd7d88953935.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wipapirub.epizy.com/dudijesetulapusabanutag.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/cabazitaxel_package_insert.pdfIn PDF document text
    • https://s3.amazonaws.com/zonivezada/forcetriad_energy_platform_user_s_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/rogugagatuf/17691695621.pdfIn PDF document text
    • http://lunobejol.rf.gd/scary_stories_to_tell_in_the_dark_streaming_vf.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/chernobyl_web_series_with_subtitles.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_off0000fbdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBDC 5200 bytes
SHA-256: ee219fc9b8419d8683231751e1b6145dfbe297ab5cf608da489447f76f1c6a64
font_01_sfnt_off00010d82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D82 11904 bytes
SHA-256: 6860786e479a40ac2dd0171528facc2459a5f832958683a5f24e43868bd71896

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