Malicious PDF — malware analysis report

Static analysis result for SHA-256 c694967e1be01cf0…

MALICIOUS

PDF

87.5 KB Created: 2021-03-16 16:47:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: d901022f3f3df352745a370105df8429 SHA-1: 180268820267daae4270f30d7c07016cde241c45 SHA-256: c694967e1be01cf00352ac196ca4c5556a6151e413274a04c476c7e51ea780ca
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9995

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://maypoin.ru/123?utm_term=adobe+acrobat+dc+edit+pdf+free PDF link annotation
    • http://jelojutu.sportsontheweb.net/dibosudururuxoje.pdfIn PDF document text
    • http://sepoxudozixo.sportsontheweb.net/godemadilemuwexegawotuvi.pdfIn PDF document text
    • http://fexevewuli.mypressonline.com/corazon_diario_de_un_nio_descargar.pdfIn PDF document text
    • http://visunuduxat.mypressonline.com/secret_window_secret_garden.pdfIn PDF document text
    • http://itdiscounts.info/572667251090r1dj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389830/normal_60213f2adeddc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384046/normal_5fe9d587a5188.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471996/normal_601b35cb304c4.pdfIn PDF document text
    • http://tesilav.sportsontheweb.net/dabegogipamogagifeloxi.pdfIn PDF document text
    • http://venira.su/1592525462t0v5v.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448323/normal_602f36de134b2.pdfIn PDF document text
    • http://yoptan.space/byju_s_early_learning_app_login9cbkh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://jisemitasun.epizy.com/lizewerakijoramedaki.pdfIn PDF document text
    • http://fenozenexow.epizy.com/cherry_ripe_nutritional_information.pdfIn PDF document text
    • http://zovixis.epizy.com/folopa.pdfIn PDF document text
    • http://lemijafuw.epizy.com/vafatilovoladazawagoj.pdfIn PDF document text
    • http://moxadokikubod.onlinewebshop.net/building_your_self_confidence.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B4 5336 bytes
SHA-256: d9a4409196763b165fe040c46281c20c2aac0e6390a30df7dc2d2213db6a2038
font_01_sfnt_off0000f472.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF472 4752 bytes
SHA-256: d3146016e787bb56748f7b135b9a07bd3831d0524ff9d7bdf1899d2a23a6da32
font_02_sfnt_off000104a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104A6 11648 bytes
SHA-256: a9f3f76fc91dd5e5df6ea31c4efd83072fa061ff0fe55e3d48b6a15ba641a838
font_03_sfnt_off00012a1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A1C 16488 bytes
SHA-256: a24b379294965881213f6bc3e9db9f5314a2d8a06b10cd027b2e5f3c9ddd95e2
font_04_sfnt_off000140aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x140AA 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

Open this report in the interactive analyzer, or submit your own file for analysis.