Malicious PDF — malware analysis report

Static analysis result for SHA-256 d33d07fd702d14c4…

MALICIOUS

PDF

72.4 KB Created: 2021-03-04 03:06:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 82b6483321174a7b51334bf60e4696b3 SHA-1: 418137355bebe085064979c353d9edb66e43cf71 SHA-256: d33d07fd702d14c4a3f1e414fa6320dfe8ed999666d5206b24b7396846fc589e
126 Risk Score

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://xezojetit.ru/award?keyword=how+to+put+calculator+in+radian+mode+ti+30x+iis PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4370092/normal_5fc5978f8cbe6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447497/normal_5fcaccae4f259.pdfIn PDF document text
    • http://subonus.ru/serato_dj_pro_updateqa2zd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365655/normal_602f4dbf0d3cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413118/normal_60239d2b792a4.pdfIn PDF document text
    • http://fruktovik.com/carbonite_addons_3._3_5f78rf.pdfIn PDF document text
    • http://moymagazin.xyz/97805575233x2ics.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464527/normal_5fc859a83470a.pdfIn PDF document text
    • http://genoray.pro/62307061273p5xw8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485309/normal_5fd8f6e28903c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369648/normal_6033d3e34384d.pdfIn PDF document text
    • http://wukilirukorobow.iblogger.org/westinghouse_55_inch_tv_stand_screw_size.pdfIn PDF document text
    • http://blockingscenery.com/jafizudidaxadefukisisaie7c4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/tixedujegibex/air_pollution_reference_book.pdfIn PDF document text
    • https://s3.amazonaws.com/getizar/zezubipoxisaj.pdfIn PDF document text
    • http://pozimefenud.epizy.com/achievement_test_sample.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ceea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEEA 5528 bytes
SHA-256: cd17040d3618c20d7359d74c2cebadee73a2ce587047fa011e91e36c370e9270
font_01_sfnt_off0000e1a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1A3 10764 bytes
SHA-256: 55a3c87e6e7f1ab439c5906bf3abe909c4945562504137e9b1b58809e6095cc3
font_02_sfnt_off0001068c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1068C 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333