Malicious PDF — malware analysis report

Static analysis result for SHA-256 afd5fc2fe02a58a2…

MALICIOUS

PDF

101.4 KB Created: 2021-03-28 23:38:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0a24673e849f9eb9cf8935565f2d0fff SHA-1: 12334752aac3d084edc75657b0d3c7a66b10fbd3 SHA-256: afd5fc2fe02a58a223c55efaecd9e1df3394abf6c8c78a1a7dee3a8d62aaf60a
154 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 routes users through malicious redirector infrastructure. 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/wix?keyword=money+conversion+worksheet In PDF document text
    • http://igcopyrightforhelps.com/70675680214otyw5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493873/normal_5fc5d84ab2a81.pdfIn PDF document text
    • http://lnstagramverifiedbadge-form.com/j_cole_middle_child_sheet_musicfr9uf.pdfIn PDF document text
    • http://ulekschool.online/berijododopotatukidaz4irrz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409093/normal_603944340f105.pdfIn PDF document text
    • https://cdn.sqhk.co/nusatabi/O3Sijhg/81303101388.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501503/normal_603bf4cfbd9bb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460970/normal_5fcea51694a11.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388405/normal_5fde27e3631e6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386094/normal_5ff75b711e66c.pdfIn PDF document text
    • https://cdn.sqhk.co/kivipemo/uhaPgjX/fire_alarm_testing_report_format.pdfIn PDF document text
    • http://remont-kholodilnikov.website/how_many_days_until_my_16th_birthdayt4lwr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447095/normal_6023ce421ede6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469860/normal_6033fabb72a77.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4528780/normal_6039f2e4e0ae0.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/wetowuzuxit/internal_auditing_jobs_in_pta.pdfIn PDF document text
    • http://jebefufodapiwi.epizy.com/fundsmith_equity_i_acc_fund_factsheet.pdfIn PDF document text
    • http://zutawatupasexap.rf.gd/nebirigatewo.pdfIn PDF document text
    • https://s3.amazonaws.com/popisiburewixuj/33341145102.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_off00015083.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15083 4968 bytes
SHA-256: 531bbab93c77a9bd0a86de801c4a23aab2c1a85f8a90a1cd786cc5ee98f78f9f
font_01_sfnt_off00016193.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16193 11420 bytes
SHA-256: 82512cbc662dde92e7eeaba53308c8dafe0d5b8ae9b581f79bd2963bd17e76e4

Open this report in the interactive analyzer, or submit your own file for analysis.