Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa0bd64c898bb444…

MALICIOUS

PDF

93.0 KB Created: 2020-12-11 13:54:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 97be238231555e4bd8466fd2c8e055d4 SHA-1: 14db314065987571c7597c48f23e65edd0ecf4c5 SHA-256: fa0bd64c898bb4442563b182daacadc0ff4551bce0b700367ebaee5f2ec63435
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-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://traffset.ru/strik?utm_term=dnd+5e+unarmed+strike+two+weapon+fighting PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4466376/normal_5fc10e99aa334.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366655/normal_5f8b2b9a90d0d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502567/normal_5fc206f4ee20c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369907/normal_5fc659d61778b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fcebc33eb0bb74023f8d0ec/t/5fd1e194d97b572b89dc7c90/1607590292405/50445722216.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc78612f2297e36a9ff05b6/t/5fd14c184f86bf06815fc9f8/1607552025618/purble_place_cake_maker_cooking_cake_game.pdfIn PDF document text
    • https://s3.amazonaws.com/nalifij/zotuxugapesile.pdfIn PDF document text
    • https://s3.amazonaws.com/pirosisob/st_mary_s_catholic_church_in_fontana_ca.pdfIn PDF document text
    • https://s3.amazonaws.com/xonobijikivo/aviva_platform_adviser_login.pdfIn PDF document text
    • https://s3.amazonaws.com/bubodeliza/devofisawam.pdfIn PDF document text
    • https://s3.amazonaws.com/tuletivotarupu/messenger_lite_9apps.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/45741698630.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e2fd6b97992eb55c026f/t/5fc19409e6d49a06bbce6433/1606521866360/81479948579.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc19ddc2bbd7406580b9f20/t/5fcd55680ab5d62feb02f6cb/1607292265183/flight_attendant_salary_nyc.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2ccd688c99b6d37b395bd/t/5fc5890df8cdb769c6a0c284/1606781197882/97347270665.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc64546ab79f442f24e106a/t/5fc86b38d6e0cc37e33c771f/1606970168437/zombie_shooter_3d_uptodown.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001304d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1304D 5704 bytes
SHA-256: 7e1e3024dc7cddcf2193153146ce11deb4a00166d71591b4e5a3bd199c7a9bb8
font_01_sfnt_off000143a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x143A5 10164 bytes
SHA-256: c143fdcb43c2631a35d7712058bdf656c4e8b25e1c2857a2fc9dcec5ab3ad71c

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