Malicious PDF — malware analysis report

Static analysis result for SHA-256 60836901f7c7a0a8…

MALICIOUS

PDF

69.6 KB Created: 2021-02-16 10:40:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fe5f4cd8da33fae808fc3b4e758e4201 SHA-1: e86dc23d87493b2c0f729b2a56c92ded8a20b442 SHA-256: 60836901f7c7a0a8b7a705cf34001689d651d9fd077af665e442087831c088fe
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URI that leads to a suspicious domain, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, appears to be a lure related to a common search query. The ML classifier and ClamAV detection strongly indicate malicious intent.

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
  • 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://seumenha.ru/wb?keyword=how%20big%20is%20the%20average%20chicken%20egg%20in%20centimeters PDF link annotation
    • https://cdn.sqhk.co/befozaxulot/HrJgchi/touch_math_skip_counting_worksheets.pdfIn PDF document text
    • http://virona.org/nejonaub4fs.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415326/normal_60003ac6489af.pdfIn PDF document text
    • http://airbin.top/ncblpc_professional_disclosure_statement_templatezin7r.pdfIn PDF document text
    • http://motivawka.online/ts_hall_ticket_2017ax6ob.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369908/normal_601caf1a465ef.pdfIn PDF document text
    • https://cdn.sqhk.co/fuzomorikat/iijPuhe/polly_pocket_pollyville_super_slide_water_park.pdfIn PDF document text
    • https://cdn.sqhk.co/fakupavod/UeS8Sgj/origami_flower_instructions_youtube.pdfIn PDF document text
    • http://update-win20.online/756410220118qpve.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/lezopobigeza/chef_s_choice_knife_sharpener_1520_manual.pdfIn PDF document text
    • http://kagilabitivibe.epizy.com/gitorufugimam.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/arcgis_10._7_crack_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kopisigapub/48474205215.pdfIn PDF document text
    • https://s3.amazonaws.com/jeponowon/ecommerce_templates_free_responsive.pdfIn PDF document text
    • http://gewekerob.epizy.com/buttressing_bone_formation_slideshare.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_off0000d337.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD337 5496 bytes
SHA-256: dab5133abb3734d85f4aae585031ccb368b7c76232ccaf76837c7d5f6776c3f6
font_01_sfnt_off0000e5e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E1 10384 bytes
SHA-256: 9f721c7d6e87e580cfb125cb3a4e16509857776b8bf13384b002a18234b440ef