Malicious PDF — malware analysis report

Static analysis result for SHA-256 e30ccaf4c36f78f8…

MALICIOUS

PDF

71.0 KB Created: 2021-02-20 00:49:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: c474f8da01ece6d211287c975fc5db80 SHA-1: 338f2477b3ad79e039bc44fed1c2098129064343 SHA-256: e30ccaf4c36f78f8649c2ba083e035c058cf3e70aad9e9b383a7305c471e8df6
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://bologen.ru/wb?keyword=how%20to%20determine%20esl%20students%20level PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387040/normal_5fd920b15a5b6.pdfIn PDF document text
    • http://best-ital.fun/puvigalikukaluniledebenix3ixa.pdfIn PDF document text
    • http://todomod.22web.org/61321576440.pdfIn PDF document text
    • http://najezeb.22web.org/employment_reference_letter_format_for_canada_immigration.pdfIn PDF document text
    • http://mastera-saydinga.ru/3832224888y2458.pdfIn PDF document text
    • https://garotilalu.weebly.com/uploads/1/3/0/7/130739336/8565655.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483610/normal_6022cde097fe4.pdfIn PDF document text
    • https://rutejiredoratel.weebly.com/uploads/1/3/1/3/131383841/gamejiv-pebupukime-zodesefaz.pdfIn PDF document text
    • http://nakidki-alkantara.xyz/free_pool_party_flyer_template66c5b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414869/normal_5fecd48d9875e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bulofowomogi.epizy.com/1696508587.pdfIn PDF document text
    • http://tagugatukosag.epizy.com/mulifegil.pdfIn PDF document text
    • http://fekerudosepu.rf.gd/auditing_notes.pdfIn PDF document text
    • http://sefegotanekexe.rf.gd/91832292367.pdfIn PDF document text
    • http://berodibanubaj.rf.gd/45332196593.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_off0000db7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB7B 4872 bytes
SHA-256: f9d44b6f3a1b7fcbca5e3afefc58b0511810d9c3e3f56a49af53862175b17759
font_01_sfnt_off0000ec0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC0A 10180 bytes
SHA-256: d9b8f2133db909829db397ae73186f22797a8dfcb2619157fb0020d079c221ab