Malicious PDF — malware analysis report

Static analysis result for SHA-256 c30caad213e898b2…

MALICIOUS

PDF

65.9 KB Created: 2021-02-28 08:43:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: df1b5897e7e0734559cdfb34d92538bc SHA-1: fb743488da96877e3bf86259bc4644fc78e4b86e SHA-256: c30caad213e898b2768c9626b05812a6e01763eaa3e8d573ffb8b45337837c07
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://fokemale.ru/wix?keyword=m460-g+ge+dryer PDF link annotation
    • https://cdn.sqhk.co/kiribikiv/Ib7haio/45271802476.pdfIn PDF document text
    • https://cdn.sqhk.co/fogibadeku/XjjvMgj/59444452070.pdfIn PDF document text
    • http://kuxogajow.iblogger.org/namakanujirafuz.pdfIn PDF document text
    • https://cdn.sqhk.co/goxobuve/jaXhijc/govuximol.pdfIn PDF document text
    • http://arm-watch3.club/17917225639pb5qu.pdfIn PDF document text
    • http://italia-doc.fun/what_is_product_model_of_curriculumkhlk8.pdfIn PDF document text
    • https://cdn.sqhk.co/mikedeto/gjjhqig/medieval_kingdom_wars_vs_kingdom_wars_2.pdfIn PDF document text
    • http://kinoxca.xyz/if_clause_zero_exerciseoduyh.pdfIn PDF document text
    • https://cdn.sqhk.co/petebeki/Ghjgiij/last_shelter_survival_unlimited_diamonds_mod_apk.pdfIn PDF document text
    • https://jufavufopu.weebly.com/uploads/1/3/4/3/134340263/mabemarigetuvawiwiba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475559/normal_603a415c96ef4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366343/normal_5fe019f986565.pdfIn PDF document text
    • http://generatorsale.ru/76126784661wo94k.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lojupefiduk.epizy.com/barbie_makeup_salon_game.pdfIn PDF document text
    • http://fenulujexita.epizy.com/lafuv.pdfIn PDF document text
    • http://lipidusixul.rf.gd/vegozoreresinatawefedid.pdfIn PDF document text
    • http://bajanasik.rf.gd/gamukoledavi.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_off0000c7a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7A0 5096 bytes
SHA-256: 0a3f9038c49e49a0ae6fc07f51dafb01f1a2947c3e189db641df7a35d7e879b6
font_01_sfnt_off0000d92a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD92A 9884 bytes
SHA-256: d87c1c4ca3ddae6b1b65063f06856b52d3b39b2fd50da11985b1e935c203a303