Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d00688b706bbc26…

MALICIOUS

PDF

79.1 KB Created: 2021-03-02 12:19:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 67553a39e935042778bbf40de7e79b4e SHA-1: 391ac99bee42cbca89e2bfbdeef7e20acafe5f9e SHA-256: 1d00688b706bbc2659520fba4318711be86d1a59d6675daddbb34c86ddb4971d
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://dafemum.ru/wix?keyword=kotor+2+guide+character+creation In PDF document text
    • https://cdn.sqhk.co/gixotagokezu/jcgdTif/my_talking_hank_hack_mod_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/zudilubal/ifgcXhg/14827094274.pdfIn PDF document text
    • https://taretowixulu.weebly.com/uploads/1/3/1/0/131070971/tarovafada_bavenulokusagaj_fifubesa.pdfIn PDF document text
    • http://nature-ital.space/zopemifoforotad0yavg.pdfIn PDF document text
    • http://agentsecure.space/taco_bell_chicken_soft_taco_fresco_nutritiona0ea6.pdfIn PDF document text
    • https://durabikat.weebly.com/uploads/1/3/4/5/134512276/132464.pdfIn PDF document text
    • https://mesowusiwa.weebly.com/uploads/1/3/5/9/135975120/sogigirowiriwuma.pdfIn PDF document text
    • https://jobadenel.weebly.com/uploads/1/3/1/1/131164033/bojenutunupobu.pdfIn PDF document text
    • http://saleproducts.pro/damanojuniri1m0.pdfIn PDF document text
    • https://lelusujizuzu.weebly.com/uploads/1/3/1/4/131438438/subuneze-dinolukuboxu-vuxiw.pdfIn PDF document text
    • https://zujavezamuni.weebly.com/uploads/1/3/0/9/130969293/a3705656f9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zutugidod.onlinewebshop.net/2012_dodge_avenger_sxt_hp.pdfIn PDF document text
    • http://rizivubonulej.atwebpages.com/stock_markets_to_invest_in_2020.pdfIn PDF document text
    • http://kosezofejesuxef.atwebpages.com/donigujogawuzidoduven.pdfIn PDF document text
    • http://ginowane.onlinewebshop.net/bakery_business_plan_sample_philippines.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_off0000f47d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF47D 5092 bytes
SHA-256: 9c9ccb3bc5067f23c4f142c9f72d3e4878dcc4da905de45f74ee8bd731fa6b1f
font_01_sfnt_off000105ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105CE 12232 bytes
SHA-256: 71f1be37cb125d63f1652fcec541ab2fcd9af29efd7bd575bb347ddea8c6b873