Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbaf8b59b2553650…

MALICIOUS

PDF

64.2 KB Created: 2021-02-26 14:46:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 1269bf10230adfd71083799961e32cad SHA-1: 0d7402a872a8c8bf9dafbd85f0de43eda07e3a8a SHA-256: bbaf8b59b2553650a41ded988986205cc597f8717d42b4332fc0dc2a12506fbd
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ponafet.ru/123?utm_term=whirlpool+microwave+wmh31017as+light+bulb PDF link annotation
    • http://marketes.pro/is_lord_of_the_rings_in_4k_on_hbo_maxm21wm.pdfIn PDF document text
    • http://xisulekotitis.iblogger.org/cardboard_sheets_for_crafting.pdfIn PDF document text
    • https://nijasofefovo.weebly.com/uploads/1/3/4/7/134719995/c98494155bd.pdfIn PDF document text
    • https://jetetinabalu.weebly.com/uploads/1/3/2/6/132682142/669e7b1.pdfIn PDF document text
    • https://cdn.sqhk.co/tilomulobet/Theghb5/sony_srs-_xb12_appairage.pdfIn PDF document text
    • https://cdn.sqhk.co/konanetufuda/Bheijjf/72198032069.pdfIn PDF document text
    • http://sapinatuligoro.22web.org/nara_japan_guide.pdfIn PDF document text
    • http://monstergym.ru/us_guided_interscalene_nerve_blockf1z35.pdfIn PDF document text
    • http://vijexibat.mywebcommunity.org/how_to_program_chamberlain_garage_door_opener_keypad.pdfIn PDF document text
    • https://cdn.sqhk.co/lolatonuvesa/pheoCjY/74818299564.pdfIn PDF document text
    • http://fudoviwil.mywebcommunity.org/navy_blue_cooling_neck_gaiter.pdfIn PDF document text
    • https://cdn.sqhk.co/jojevirelo/N0vYGid/stranded_wire_awg_table.pdfIn PDF document text
    • https://cdn.sqhk.co/lagazowasobo/vjiigcS/chess_openings_pro_apk.pdfIn PDF document text
    • http://zimefob.22web.org/84454689858.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://baruluzibovog.epizy.com/87986659855.pdfIn PDF document text
    • http://tesoxukezeziles.epizy.com/91601158180.pdfIn PDF document text
    • http://rakoduwe.epizy.com/deep_pocket_full_fitted_sheet.pdfIn PDF document text
    • http://patesosiw.epizy.com/39764919724.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_off0000bdd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDD9 6092 bytes
SHA-256: 31d360da8c11b7fe53dbd9060d442523bd675195974e34fc6fe0b26800a9e361
font_01_sfnt_off0000d28e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD28E 9584 bytes
SHA-256: 300a85d49718e997388a9c13bbb7a4c9f51b05c71130df4645003b84cff4b41f