Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1f43950cd55e6ca…

MALICIOUS

PDF

75.4 KB Created: 2021-04-04 16:11:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: ed4e46f1376f5017369f8ade7f3e5e7e SHA-1: ffe3a0a4ee2ccbfd790cf396c5866b93d19d3912 SHA-256: a1f43950cd55e6cad297acd3593e6bc49b6a000695395ad52db4e0b7d5a462d5
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The ClamAV detection and ML classifier indicate malicious intent, likely to redirect users to malicious websites for credential harvesting or malware delivery. No scripts were extracted, but the PDF structure itself is used to host and present these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8041

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 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
  • 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://seumenha.ru/aws?utm_term=what+is+a+feminist+critique PDF link annotation
    • https://fiwudarive.weebly.com/uploads/1/3/0/7/130775392/watawisel.pdfIn PDF document text
    • https://riwipawubo.weebly.com/uploads/1/3/1/4/131453561/zetojugajigo.pdfIn PDF document text
    • http://tiktokfrance.fun/michigan_medicaid_office_phone_numberh35i7.pdfIn PDF document text
    • https://cdn.sqhk.co/wikomawile/iiv5ha7/jefafojiwodulanudovimusan.pdfIn PDF document text
    • https://dezijetide.weebly.com/uploads/1/3/4/8/134864221/fufudafatuseni.pdfIn PDF document text
    • http://reduslim-italiaufficiale.site/moxunusiluwiwududojey5cwu.pdfIn PDF document text
    • https://mizevazorabij.weebly.com/uploads/1/3/5/3/135347525/gudes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425768/normal_5fed3736ce591.pdfIn PDF document text
    • https://beperupofifu.weebly.com/uploads/1/3/1/6/131636755/gorilezopu-rikebedufog.pdfIn PDF document text
    • https://suxaniwaxunese.weebly.com/uploads/1/3/4/3/134385499/luneveda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472760/normal_600a7dc36a966.pdfIn PDF document text
    • https://nubadofefir.weebly.com/uploads/1/3/4/7/134757625/02449.pdfIn PDF document text
    • https://cdn.sqhk.co/wakivunet/gehihan/fill_color_in_excel_using_python.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500187/normal_60217d041fbec.pdfIn PDF document text
    • http://casser.xyz/51091973845h87jx.pdfIn PDF document text
    • https://cdn.sqhk.co/bisulalu/ghajVps/puppy_running_sideways.pdfIn PDF document text
    • https://rifijilaguselud.weebly.com/uploads/1/3/4/8/134846829/e70902956e50.pdfIn PDF document text
    • https://gavuzolarot.weebly.com/uploads/1/3/4/4/134458525/48eae.pdfIn PDF document text
    • https://wemibevufiwoseb.weebly.com/uploads/1/3/0/8/130813314/mepawibiso_sujonemomeko_fakawaligazas_bogaragakojovi.pdfIn PDF document text
    • http://namsinc.info/ingenuity_travel_swing_weight_limitk2k0o.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/65e52f13-3d24-4d4a-aa7a-24eb188e6dfb/manual_access_point_tp-link_tl-wa801nd.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a55ab9c-69ca-418c-ba42-3f8505636149/thank_you_maam_commonlit_answers_which_statement_best_expresses_the_theme_of_the_story.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5c82b0b-9644-4bc1-98c0-6dde86b770c1/kiwamapimuxazavamon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ce7cdde-8f91-4fef-8536-359d1cadf621/37408744109.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9bd1103e-5a88-458a-a756-91f3220e48a3/zokusezidevavazopoga.pdfIn 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_off000118b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118B6 5228 bytes
SHA-256: 919efc98c4418d73b264eb72d845ee244dc5d9947dd4af2b59dbee797bb75f2a

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