Malicious PDF — malware analysis report

Static analysis result for SHA-256 4469a58818114e1e…

MALICIOUS

PDF

83.7 KB Created: 2021-02-21 01:02:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 7be96d5f9d4ea1209425501532952478 SHA-1: 578e8f1a7987c9d30eba26863c7361f4be46773e SHA-256: 4469a58818114e1e01becd45ba14dae10d270baaf9c54103208bae947346501d
154 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 routes users through malicious redirector infrastructure. 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/123?utm_term=uppababy+vista+configurations+with+car+seat In PDF document text
    • https://cdn-cms.f-static.net/uploads/4484834/normal_602124df2059e.pdfIn PDF document text
    • http://uspeh.icu/887404289317q2kv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408009/normal_5fee7da2b6be3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384150/normal_5fdb0caedd443.pdfIn PDF document text
    • https://cdn.sqhk.co/lemisobe/cjgUjtw/62073478059.pdfIn PDF document text
    • http://0fruit.space/livro_animismo_e_espiritismotiilh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444377/normal_5fd66e32758b9.pdfIn PDF document text
    • https://cdn.sqhk.co/suxujaba/a6gfamW/khan_academy_math.pdfIn PDF document text
    • http://prodson.fun/20172359726gg9s5.pdfIn PDF document text
    • https://cdn.sqhk.co/fowijuseziju/fgggdjd/island_in_the_sun_lyrics.pdfIn PDF document text
    • https://cdn.sqhk.co/pujixefan/ewNt9rC/super_smash_flash_2_all_star_mode.pdfIn PDF document text
    • https://pulezigo.weebly.com/uploads/1/3/4/6/134600697/a94877016923.pdfIn PDF document text
    • http://help-service-support.com/34128787636pj30u.pdfIn PDF document text
    • https://lepefolavexar.weebly.com/uploads/1/3/0/8/130874674/821fdb25.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/gajabedafot/surah_yaseen_audio.pdfIn PDF document text
    • https://s3.amazonaws.com/gezizefefififa/47011117699.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/tasiwolanojekakabivimevi.pdfIn PDF document text
    • https://s3.amazonaws.com/zufaxepixiguxax/best_annotation_apps.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_off00010949.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10949 5632 bytes
SHA-256: 1c853f90afde2d77f1f37a56d3d95f349d0a92f8bf4a3c25800c77a9d184e5c9
font_01_sfnt_off00011c89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C89 10828 bytes
SHA-256: 4ab58c39d219e51a869611526a8acc5714523231d9019631debde84736fa4133

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