Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1695728d31d592a…

MALICIOUS

PDF

72.1 KB Created: 2021-02-15 10:58:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: aa742fc667d74f3643ddd8d74fb40dde SHA-1: d8e6761c4f019240c2910313dca7851e52fec941 SHA-256: c1695728d31d592a4c5b7af9387678dbf7a6c483bf018e1ad50dc519dc262434
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wix?keyword=henry+j.+waternoose+iii PDF link annotation
    • http://nitodizej.22web.org/98268049118.pdfIn PDF document text
    • https://dirifulezidume.weebly.com/uploads/1/3/2/7/132740871/4726690.pdfIn PDF document text
    • https://bikonate.weebly.com/uploads/1/3/4/7/134715396/wizepinevufawag_kuguxifemaf.pdfIn PDF document text
    • https://datugabow.weebly.com/uploads/1/3/4/7/134745554/9538179.pdfIn PDF document text
    • http://fuluwube.22web.org/45485715742.pdfIn PDF document text
    • http://kirudina.iblogger.org/employment_status_manual_esm0500.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mavoweba.epizy.com/aadukalam_songs_free_masstamilan.pdfIn PDF document text
    • http://kudugumokob.epizy.com/16442750914.pdfIn PDF document text
    • http://gobonelore.epizy.com/ahmednagar_live_weather_report.pdfIn PDF document text
    • http://dujawupiraxep.rf.gd/vadiradus.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/xofuz.pdfIn PDF document text
    • http://kesaratesur.epizy.com/pump_performance_curve.pdfIn PDF document text
    • https://s3.amazonaws.com/sorapobuk/petta_tamil_movie_in_tamilrockers_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/dajuwejepojip.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_off0000e056.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE056 4908 bytes
SHA-256: fde3a0dd3b8ca9faea29cb3afb7cd0dcf099f8c60338b1cbfd39794b52c3e2b0
font_01_sfnt_off0000f133.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF133 10156 bytes
SHA-256: 32f4a42f21fbf83f5a7d7323c4dbe4fcf5941b6d83d7a26d863220b92f92c538