Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2159776d8590202…

MALICIOUS

PDF

66.6 KB Created: 2021-02-21 00:45:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 78c9dc1e76ed854a5493ac191c22cb33 SHA-1: d2d78d42b306da3bfb974cf255bde2b016df7c03 SHA-256: e2159776d85902023385cf10d3ec336c220510a89d01746fa8b4707444642f5e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that masquerades as a search result for 'where's waldo images', likely intended to trick the user into visiting a malicious site. ClamAV and ML classifiers strongly indicate maliciousness, and the presence of embedded URLs points towards a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=where%2527s+waldo+images PDF link annotation
    • http://checkmyscore.info/how_much_does_it_cost_to_service_a_singer_sewing_machinew3ge5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420756/normal_601a7d3fbaa24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481662/normal_60226aa8d68a5.pdfIn PDF document text
    • http://bemoxanomazopix.iblogger.org/kanawabotonevato.pdfIn PDF document text
    • https://welajewovire.weebly.com/uploads/1/3/3/9/133999455/gepixukenud_zomudatabe_latepeve.pdfIn PDF document text
    • http://lufesemi.iblogger.org/77425991546.pdfIn PDF document text
    • https://mimitokiwunas.weebly.com/uploads/1/3/4/0/134012498/xujexomu.pdfIn PDF document text
    • http://tegor.xyz/offroad_racing_onlinewispc.pdfIn PDF document text
    • https://vugesajovor.weebly.com/uploads/1/3/4/2/134265649/737166.pdfIn PDF document text
    • http://futup.ru/grow_castle_crafting_guide4z1s8.pdfIn PDF document text
    • http://form-lnstagramverificationbadge.com/recorder_sheet_music_easyqa33o.pdfIn PDF document text
    • https://terusabul.weebly.com/uploads/1/3/4/7/134702655/9049081.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444623/normal_602758ee1e5bb.pdfIn PDF document text
    • http://milesnires.xyz/kawasaki_mule_2510_service_manualrqovp.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/vobuturinivi/kokorezakipevezemakilefen.pdfIn PDF document text
    • https://s3.amazonaws.com/xapota/ergodox_infinity_build_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wokesabisevo/25020782373.pdfIn PDF document text
    • https://s3.amazonaws.com/faduxodiwo/platformio_arduino_debug.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_off0000c5b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5B1 5380 bytes
SHA-256: c92e9610647f48abb169dc398b4a4b5fd1b1a5ff224a280bc4a3b51174f083e7
font_01_sfnt_off0000d7e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7E7 10760 bytes
SHA-256: 0cfb2727eb577ecd34cb43f562eb54b240d3e6d2fc5440c0b4af8a9858061348

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