Malicious PDF — malware analysis report

Static analysis result for SHA-256 88f5c4ed9d4ab70f…

MALICIOUS

PDF

70.0 KB Created: 2021-02-27 20:44:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2c8db4d347e64e5cff29f63bdf370d3e SHA-1: 1ddb60e623ef6bbba938f4a93aeaef6982b2c9e2 SHA-256: 88f5c4ed9d4ab70f148d187add4a8cdc3e4bc061cf3b72cb10349242424505b9
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://bologen.ru/award?keyword=lincoln+electric+weld+pak+125+hd+wire+feed+welder+manual PDF link annotation
    • http://loneresel.mygamesonline.org/free_california_rental_agreement_2020.pdfIn PDF document text
    • http://fojenuf.iblogger.org/luxofugisenurir.pdfIn PDF document text
    • http://lnstagramlivesupportcenter.com/zilovojotirudutosikomolos3m8nr.pdfIn PDF document text
    • https://rizizisexulap.weebly.com/uploads/1/3/1/4/131407181/posofekefekapulolal.pdfIn PDF document text
    • https://xulakuvoloja.weebly.com/uploads/1/3/0/8/130813987/lesataruwad.pdfIn PDF document text
    • https://zesijijonade.weebly.com/uploads/1/3/0/7/130776416/gopivewa.pdfIn PDF document text
    • http://lofokumado.22web.org/interesting_facts_quiz_questions_and_answers.pdfIn PDF document text
    • https://tejojapifofomo.weebly.com/uploads/1/3/4/3/134339563/pitotosim.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/zazelujeju/boxevakibutanidi.pdfIn PDF document text
    • http://genenapukiral.epizy.com/a_gentleman_full_movie_480p_bluray.pdfIn PDF document text
    • https://s3.amazonaws.com/wuzalugiseto/original_aramaic_bible_in_plain_english.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/30297907306.pdfIn PDF document text
    • http://fuzonojidufube.epizy.com/33662413299.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_off0000c97f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC97F 5624 bytes
SHA-256: c06d00ba398a28b0f350aa4b3a03615ba1502c226f6a7571c637ef2fba89e373
font_01_sfnt_off0000dc97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC97 2048 bytes
SHA-256: 7d1d8f4167c36277c8fe71225fbdc31aaaca98204796b18c2f8b3e083a802a80
font_02_sfnt_off0000e576.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE576 10868 bytes
SHA-256: 1de705b3cbfabe9b8bb5f305868760974d14a0864c3b29fb5ecffc7e3e245124