Malicious PDF — malware analysis report

Static analysis result for SHA-256 07a700f81ca0d43e…

MALICIOUS

PDF

75.3 KB Created: 2021-02-25 16:12:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 1b68aeb6223c1e655d8fb4b171e20917 SHA-1: 53142972e12e5d4929734ebebeed26603194c71d SHA-256: 07a700f81ca0d43e6fa402e85554adaabb78af1cac7a38836a1c99b3e5fcb351
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 0.9993

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://baarspo.ru/aws?utm_term=beethoven+piano+sonatas+free+sheet+music PDF link annotation
    • http://beremoter.online/luwarivewalezapi6cgna.pdfIn PDF document text
    • http://reduslim-europa.site/site_reliability_engineering_github1onyv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380682/normal_5fe08ae46f9f0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483604/normal_5fcbe481a3b70.pdfIn PDF document text
    • https://bezofaxifi.weebly.com/uploads/1/3/1/6/131606652/a05a14e4417b5e2.pdfIn PDF document text
    • https://sufupixugopibo.weebly.com/uploads/1/3/5/3/135316623/9631788.pdfIn PDF document text
    • https://lemefiware.weebly.com/uploads/1/3/4/0/134017231/2e8beafb31a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413845/normal_602e134355a83.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470412/normal_6036dc88b1c67.pdfIn PDF document text
    • https://fefugenaxidoseb.weebly.com/uploads/1/3/1/3/131380158/nimavokefok-rutez-pefarivizod.pdfIn PDF document text
    • http://worldhold.online/rewemafefuzatawabumaneyv9s0.pdfIn PDF document text
    • https://mozevosiku.weebly.com/uploads/1/3/3/9/133999333/7380864.pdfIn PDF document text
    • https://kaxojolomo.weebly.com/uploads/1/3/4/8/134885197/4cba074afa6.pdfIn PDF document text
    • https://kafiwixuvaso.weebly.com/uploads/1/3/0/8/130874495/savabisuvabuw-rexibetulu-kilekigowisip-zorotasexejer.pdfIn PDF document text
    • http://cashfree.store/41401407070pe9nt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487409/normal_602e613973386.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/wofaxil/54415844719.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/honda_cx500_parts_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/dofufiri/law_of_conservation_of_mass_worksheet_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/vovabagubajegeb/what_degree_black_belt_is_jocko_willink.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/10940728333.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/libro_caballo_de_troya_2_precio.pdfIn PDF document text
    • https://s3.amazonaws.com/fizup/22745561069.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_off0000e87f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE87F 5332 bytes
SHA-256: 4358f1a2b83bb723bad9c63ef621eb51e7b8d7164dc50cf67832ceb61139ec1f
font_01_sfnt_off0000fa83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA83 10920 bytes
SHA-256: 8c26bba9fe079ff2c6f9cc37e6d6efb396a65e3328b4b997d1e05b1fb99d3ec6

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