Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a95e3157166557c…

MALICIOUS

PDF

79.1 KB Created: 2021-03-15 09:58:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 7cae4d8080b6a5186a1a3ae5b18f944d SHA-1: fab3f04e67f47d2c5a47b03ca0adb2b49fb3f7f9 SHA-256: 2a95e3157166557cff257a219b50335386501246f68f69f74d9b661b50a30d3f
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7876

Heuristics 4

  • 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
  • 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://maypoin.ru/award?keyword=grutter+v.+bollinger+pdf PDF link annotation
    • http://nepoxiduvilej.scienceontheweb.net/18721318855.pdfIn PDF document text
    • https://sugemisikuwev.weebly.com/uploads/1/3/1/8/131856456/nesakofigiwoba.pdfIn PDF document text
    • http://nesebonuvobeju.getenjoyment.net/12555496267.pdfIn PDF document text
    • http://jorowijedo.mywebcommunity.org/family_portrait_photographers_near_me.pdfIn PDF document text
    • http://bimoriz.getenjoyment.net/weketevanazobomisozumir.pdfIn PDF document text
    • https://jonexizuli.weebly.com/uploads/1/3/4/2/134235370/3337604.pdfIn PDF document text
    • https://javagakikidubat.weebly.com/uploads/1/3/0/9/130969576/kaboxovewawenixu.pdfIn PDF document text
    • http://lukiduxipapep.mywebcommunity.org/24265650266.pdfIn PDF document text
    • http://tikanaw.mypressonline.com/27798337058.pdfIn PDF document text
    • http://boketizabujig.scienceontheweb.net/loputetafekiperifafe.pdfIn PDF document text
    • http://sipipewawezizuf.getenjoyment.net/how_to_use_playing_cards_for_fortune_telling.pdfIn PDF document text
    • http://poguzozod.sportsontheweb.net/franchising_for_dummies_free_download.pdfIn PDF document text
    • http://pelabinowoguk.getenjoyment.net/fonosixutevedifijiru.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://7a512b58-7189-4bc4-8343-f643fa9054c9.filesusr.com/ugd/1e52da_c07f3a3d6cce41bfaef40993d46a44c0.pdf?index=trueIn PDF document text
    • https://8316a071-1c81-4729-bbc9-bb84f51c1359.filesusr.com/ugd/b2ba6b_58ffbba9445b478e95daf243ea49af87.pdf?index=trueIn PDF document text
    • http://jagomizaf.atwebpages.com/presidential_book_of_secrets_page_47.pdfIn PDF document text
    • https://0f0532cb-4478-41f9-91a1-cf277c4732ec.filesusr.com/ugd/8acad3_413def9e3eda4494ad5870878a9c2d38.pdf?index=trueIn PDF document text
    • http://wareguw.atwebpages.com/anemia_perniciosa_sintomas.pdfIn PDF document text
    • https://a9f3490c-def6-45ea-9957-aefa341d54bd.filesusr.com/ugd/84b587_860a884e2a614be9867749b7c758ef94.pdf?index=trueIn PDF document text
    • http://gowepuxajotezo.onlinewebshop.net/81263792662.pdfIn PDF document text
    • https://777dd155-384c-4f1d-a337-8f27b94bb056.filesusr.com/ugd/1ecdae_62727576a39047e79f6f9b9f49d17f10.pdf?index=trueIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012340.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12340 5084 bytes
SHA-256: 1e625c4a88dee95b3e003ec62bfcd72a96a149470b9bc2859b98cba29d7c7225

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