Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3416995117cd939…

MALICIOUS

PDF

71.2 KB Created: 2021-03-03 11:43:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 536520e008f99f8337a5ec3dfb9677f5 SHA-1: bdbb63fcdc66abecef8374079b53a5607623ecd4 SHA-256: f3416995117cd939618fbfaa42e86bd567c6dd9e5107f4e7c64748f2e111bf14
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://fokemale.ru/award?keyword=4+pics+one+word+level+2206+answers PDF link annotation
    • https://dedopaka.weebly.com/uploads/1/3/4/4/134498192/koxititemi.pdfIn PDF document text
    • http://nowukusox.mypressonline.com/rotopuforova.pdfIn PDF document text
    • https://pibazamigudixo.weebly.com/uploads/1/3/4/0/134000525/nobijowobo_pomowebedow_labivu.pdfIn PDF document text
    • http://kovezemunoropu.iblogger.org/75197949050.pdfIn PDF document text
    • http://fukiwurezopukof.mywebcommunity.org/what_is_the_text_structure_of_the_first_paragraph.pdfIn PDF document text
    • https://busununivid.weebly.com/uploads/1/3/4/7/134774072/babike.pdfIn PDF document text
    • https://rowagikej.weebly.com/uploads/1/3/4/6/134678960/3846005.pdfIn PDF document text
    • https://lilufegat.weebly.com/uploads/1/3/5/9/135965666/2140324.pdfIn PDF document text
    • http://xezuviwejugume.22web.org/bitumen_penetration_test.pdfIn PDF document text
    • http://jabilevij.mypressonline.com/gazutowunonoba.pdfIn PDF document text
    • http://tupaxeguna.scienceontheweb.net/sisowonu.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/dibedamoka/additional_insured_iso_form_cg_2010.pdfIn PDF document text
    • http://dadorisisewane.epizy.com/didugebululokukagotaw.pdfIn PDF document text
    • http://dipijiz.epizy.com/leadership_qualities_crossword_puzzle_answers.pdfIn PDF document text
    • http://dasujisetojasel.epizy.com/89242661767.pdfIn PDF document text
    • http://jujobope.atwebpages.com/how_do_i_change_the_battery_in_my_siemens_rdh10rf.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisigetizoxif/dekofugesenozesoxu.pdfIn PDF document text
    • https://s3.amazonaws.com/pevarijidasalop/free_apps_jailbreak_ios_11.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_off0000d997.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD997 5640 bytes
SHA-256: 64971c94cf4dfe19dc080eee49db933f88c4f07c64196ff7579be354c91070ce
font_01_sfnt_off0000ece8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECE8 10180 bytes
SHA-256: 3ee271289048f8bedbc76cd22499faeb919bf9ac7c45e57cd6c5ebbbfdbd7a51