Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee89eabfa5cc1c04…

MALICIOUS

PDF

82.3 KB Created: 2021-02-22 12:11:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 794fb2d65ce8320e95a8cc608dd29682 SHA-1: c686ee5781d13431d14e0e3c9225df3aa4f7d59a SHA-256: ee89eabfa5cc1c047dcbe287a3f024b3a7a9dca5ff3b8f1f1bc5566b5bae1e89
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, many of which point to other PDFs, suggesting a link farm or redirection mechanism. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. The embedded URLs are used to redirect the user to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/123?utm_term=how+to+make+your+own+pizza+base+without+yeast PDF link annotation
    • http://lady-bug.club/colonization_and_decolonizatione4y4f.pdfIn PDF document text
    • https://mibarepazakeme.weebly.com/uploads/1/3/4/6/134685426/0e9b603bb2.pdfIn PDF document text
    • http://899themes-demo.ru/73421350147yd5vw.pdfIn PDF document text
    • https://seruvukajobal.weebly.com/uploads/1/3/4/4/134479042/tumawedekerewujoxiv.pdfIn PDF document text
    • https://fuwurobo.weebly.com/uploads/1/3/0/8/130814642/4373cd60dd58c.pdfIn PDF document text
    • http://mjawebdesign.net/kalekukedtw9oc.pdfIn PDF document text
    • https://zikawudewodag.weebly.com/uploads/1/3/4/5/134585044/c8207d5e56.pdfIn PDF document text
    • https://bazofaxeretaw.weebly.com/uploads/1/3/4/8/134868688/jatevo.pdfIn PDF document text
    • https://xodovasiwuton.weebly.com/uploads/1/3/0/7/130776096/gasomozapowizoke.pdfIn PDF document text
    • http://trysoda.pro/5025916035590trx.pdfIn PDF document text
    • http://wildber.store/bangkok_mrt_map_2019ai2q3.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/kakef/journal_voucher_template_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/18523755518.pdfIn PDF document text
    • https://s3.amazonaws.com/tinajabizoreguf/mh4u_armor_sets_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/44663684599.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eda3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA3 5436 bytes
SHA-256: 1b03fa0894d33ccb35cb35d4a0833fc21bc0213bdf7761114d5c02bb5be8cda1
font_01_sfnt_off0001000a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1000A 11424 bytes
SHA-256: 59e3783320e02a0669a1690e07d72983187124e8b2667b7368ba4bfa448c91e3
font_02_sfnt_off00012693.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12693 16092 bytes
SHA-256: 9af6fc3bf9d751f70540aea0fa47faa159a3604992cda23d2adcda3ffc5346b2

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