Malicious PDF — malware analysis report

Static analysis result for SHA-256 7630336d43808b46…

MALICIOUS

PDF

74.0 KB Created: 2021-03-01 22:14:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: cdda98588b5ecd20ff7e8cc6a473442a SHA-1: 1996736e912dcc96b2c87077032ccd18ddce254f SHA-256: 7630336d43808b461dcb23d20cc78d86913e9a05231a2bda817000301b6c699e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a URL that appears to be a lure for downloading a game mod. The ML classifier and ClamAV detection strongly indicate maliciousness, consistent with a phishing or malware distribution attempt. The presence of multiple external URLs suggests the file is designed to redirect the user to potentially harmful content.

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://leonvi.ru/wix?keyword=cops+n+robbers+mod+apk+9.7.0 PDF link annotation
    • http://jokojujut.medianewsonline.com/26188193950.pdfIn PDF document text
    • https://cdn.sqhk.co/dasewugiru/ggCgfgi/diy_squishy_makeover_stress_relief_with_fungus.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408703/normal_60055c397c748.pdfIn PDF document text
    • https://cdn.sqhk.co/xemugugafot/fZzvKSp/49502241827.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416322/normal_603d2ee833770.pdfIn PDF document text
    • http://pedumerik.sportsontheweb.net/14578299659.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388048/normal_6037eadfcae21.pdfIn PDF document text
    • https://cdn.sqhk.co/zivupowixede/ijgdWTH/xfinity_stream_roku_cost.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473047/normal_6018e4e2a0d9d.pdfIn PDF document text
    • http://bagerisevi.scienceontheweb.net/nys_dmv_drivers_manual_chapter_4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418991/normal_5fe7fffd2c4cb.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/sorogamat/mn_dmv_driver_license_lookup.pdfIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/kokofiwotuxig.pdfIn PDF document text
    • https://s3.amazonaws.com/zemunomipazikez/arabiyyah_bayna_yadayk.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_off0000e2d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2D5 5592 bytes
SHA-256: a7f7c40f62b335b0663de50f1c04c00b02c702409262571b77c5d8e86d8a492a
font_01_sfnt_off0000f5bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5BC 11040 bytes
SHA-256: 321698bf80d91b3fec6468260dfa4b2e75e6716da0d79a15da16abbd3dcfd435