Malicious PDF — malware analysis report

Static analysis result for SHA-256 f35bafb55e7d7a94…

MALICIOUS

PDF

80.8 KB Created: 2021-03-09 20:19:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 7157b9aa7411f12a162559f2f18c1a29 SHA-1: ada92df4f35232b112fe4ee1453bb5aab843fa54 SHA-256: f35bafb55e7d7a94ca6c09fbe17254a3f15113bc9f5a2c58e0b05fd8b2a643c9
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=bade+miyan+chote+miyan+remix+song PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367627/normal_5fd71f4f3a346.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388183/normal_5fdc632f2add2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475999/normal_60468c273fd66.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383687/normal_5fdfc1a3b9374.pdfIn PDF document text
    • http://fukiwurezopukof.mywebcommunity.org/wodatejabokajozuruwokixog.pdfIn PDF document text
    • http://sufawevugut.mywebcommunity.org/2005_cadillac_cts_transmission_repair_cost.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417403/normal_5fee61cf91524.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445106/normal_60478ad962104.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401692/normal_5ff7933c58635.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420028/normal_5fe1aafc8a5a8.pdfIn PDF document text
    • http://welitizenowem.mywebcommunity.org/the_cloud_of_unknowing_book.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448346/normal_600e11934c516.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/mejados/67170064177.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/bupodal.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/xuxakorakaxopetetamom.pdfIn PDF document text
    • https://s3.amazonaws.com/tobito/77984615903.pdfIn PDF document text
    • https://s3.amazonaws.com/niporofez/sonic_all_stars_racing_transformed_apk_adreno.pdfIn PDF document text
    • http://vibirokudod.myartsonline.com/the_game_plan_movie_reddit.pdfIn PDF document text
    • https://s3.amazonaws.com/satedafadusizo/ftse_all-_share_index_historical_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/wovigebi/33564273507.pdfIn PDF document text
    • https://s3.amazonaws.com/mejawiwomak/8389672663.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e81d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE81D 5540 bytes
SHA-256: c3128b4fe05d6429665afcf9b84261f539291f4ebfd114e7e843fd9ea29d8bb1
font_01_sfnt_off0000fad8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAD8 11232 bytes
SHA-256: 1a6e140140a483e6f3fca2c987db964ad374774f5b66088b4b5a055d41c862ad
font_02_sfnt_off0001208c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1208C 16164 bytes
SHA-256: ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8

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