Malicious PDF — malware analysis report

Static analysis result for SHA-256 6da20efd02cd7e7e…

MALICIOUS

PDF

76.6 KB Created: 2021-03-13 21:10:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 3ffa6db68f56f1475ff1d0967047899b SHA-1: ea749e1e6e9b5528d3b55cd5b55c975ab542887f SHA-256: 6da20efd02cd7e7ec6dac5c231a527a17218a7c9718b37e59f01b19786001832
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://golowaki.ru/wix?keyword=sharp+convection+and+grill+microwave+manual PDF link annotation
    • http://inmyshtangen.xyz/gazixusixovuderikatasitzddgw.pdfIn PDF document text
    • http://50offstore.info/ameloblastoma_plexiformewosoz.pdfIn PDF document text
    • http://ecosbor.net/2008_ford_escape_transmission_swapa49wv.pdfIn PDF document text
    • http://worldthailand.fun/awen_badnam_yaro_sharab_videox2fhl.pdfIn PDF document text
    • http://frut-tree.site/najapavotajojigariwigugotg7sm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413563/normal_601bc7604f24e.pdfIn PDF document text
    • http://jsexj.fun/apttus_clm_developer_guide2kxil.pdfIn PDF document text
    • http://just-gopro.com/is_silver_ionic_or_covalente30bn.pdfIn PDF document text
    • http://naturaitalia.space/sociolinguistics_an_introduction_to_language_and_societyc0qev.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416811/normal_5fe156378efde.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486190/normal_5fd80e1376fa8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419193/normal_5ffacef1284b5.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/tofizo/finder_forcibly_guided_contacts.pdfIn PDF document text
    • https://s3.amazonaws.com/xozeb/acpi_ven_hpq_dev_0004.pdfIn PDF document text
    • https://s3.amazonaws.com/pokorevalaxex/bpt_2nd_year_syllabus.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/58676838798.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/open_android_studio_terminal_linux.pdfIn PDF document text
    • https://s3.amazonaws.com/wupagivoz/vivomexotetadulofiv.pdfIn PDF document text
    • https://s3.amazonaws.com/bisapovepizaj/89967730239.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_off0000ec74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC74 5564 bytes
SHA-256: 6cd679f59b12c5d7a9e39008bb862b8bc9f18b1c62df30118b26cb9b19dd3054
font_01_sfnt_off0000ff4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF4B 10944 bytes
SHA-256: 74c07cc9ce34b8cb4b56e7648d1a54e55c04a52a755ef3a707f1d99cb9d273bb

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