Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2bbb926e4f4b169…

MALICIOUS

PDF

75.5 KB Created: 2021-03-16 09:24:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 36dd662448c485d4c3227977c90cd02f SHA-1: 2fd949d4b58e669de951b0cb298326405651fe16 SHA-256: f2bbb926e4f4b1699ee75755b3a5c453bf5ec98dd1fec5593775b27de62c7eb6
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 0.9997

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://botokaw.ru/123?utm_term=certify+expense+reporting+reviews PDF link annotation
    • http://ttttrrrr.space/airlines_manager_tycoon_guide4gnhe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500187/normal_6005bb65b58be.pdfIn PDF document text
    • http://thedouche.xyz/english_speaking_course_without_grammar_part_1aqv7n.pdfIn PDF document text
    • http://theboldpantsproject.com/birilumlrfz6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480594/normal_6036c99b0f284.pdfIn PDF document text
    • http://servempieza.site/laxokobu8ajpm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465938/normal_602da03ae3b0c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479718/normal_602d0cdfc446a.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/daselex/wuzaliro.pdfIn PDF document text
    • https://s3.amazonaws.com/lakadutof/elder_scrolls_online_crafting_guide_ps4.pdfIn PDF document text
    • https://s3.amazonaws.com/lemefofutomapox/77262724095.pdfIn PDF document text
    • https://s3.amazonaws.com/muvarelo/bts_summer_package_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/is_8000_dollars_a_month_good.pdfIn PDF document text
    • https://s3.amazonaws.com/jonora/c_access_database_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/dupula/pbs_memory_rescue_review.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/69148837142.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/cashier_resume_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gajakelegeza/macroscale_and_microscale_organic_experiments_6th_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/84175339883.pdfIn PDF document text
    • https://s3.amazonaws.com/xokebore/xumexapawad.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_off0000ea1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA1C 5056 bytes
SHA-256: a8b5d4cc5e85db6f04eb383738d83b719bc8351a32c708af557749210aab5896
font_01_sfnt_off0000fb85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB85 10812 bytes
SHA-256: c680f3b781d9e4c3dfe6f64b4f7fe92a7ebf3bc76b8976d85346b358605c2a72

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